|
|
Line 1: |
Line 1: |
− | http://adult.48d.biz/specially/free_lesbian_porn.html free lesbian porn - http://adult.48d.biz/specially/free_lesbian_porn_video.html free lesbian porn video - http://adult.48d.biz/specially/lesbian_porn_star.html lesbian porn star - http://adult.48d.biz/specially/free_lesbian_porn_movie.html free lesbian porn movie - http://adult.48d.biz/specially/black_lesbian_porn.html black lesbian porn - http://adult.48d.biz/specially/lesbian_porn_video.html lesbian porn video - http://adult.48d.biz/specially/lesbian_porn_movie.html lesbian porn movie - http://adult.48d.biz/specially/teen_lesbian_porn.html teen lesbian porn - http://adult.48d.biz/specially/lesbian_porn_site.html lesbian porn site - http://adult.48d.biz/specially/free_lesbian_porn_clip.html free lesbian porn clip - http://adult.48d.biz/specially/hardcore_lesbian_porn.html hardcore lesbian porn - http://adult.48d.biz/specially/lesbian_porn_picture.html lesbian porn picture - http://adult.48d.biz/specially/hot_lesbian_porn.html hot lesbian porn - http://adult.48d.biz/specially/lesbian_porn_clip.html lesbian porn clip - http://adult.48d.biz/specially/lesbian_porn_pic.html lesbian porn pic - http://adult.48d.biz/specially/lesbian_sex_porn.html lesbian sex porn - http://adult.48d.biz/specially/free_lesbian_porn_pic.html free lesbian porn pic - http://adult.48d.biz/specially/free_black_lesbian_porn.html free black lesbian porn - http://adult.48d.biz/specially/asian_lesbian_porn.html asian lesbian porn - http://adult.48d.biz/specially/free_lesbian_porn_picture.html free lesbian porn picture - http://adult.48d.biz/specially/xxx_lesbian_porn.html xxx lesbian porn - http://adult.48d.biz/specially/lesbian_anime_porn.html lesbian anime porn - http://adult.48d.biz/specially/free_lesbian_porn_site.html free lesbian porn site - http://adult.48d.biz/specially/free_teen_lesbian_porn.html free teen lesbian porn - http://adult.48d.biz/specially/mature_lesbian_porn.html mature lesbian porn - http://adult.48d.biz/specially/lesbian_porn_trailer.html lesbian porn trailer - http://adult.48d.biz/specially/lesbian_porn_gallery.html lesbian porn gallery - http://adult.48d.biz/specially/ebony_lesbian_porn.html ebony lesbian porn - http://adult.48d.biz/specially/cartoon_lesbian_porn.html cartoon lesbian porn - http://adult.48d.biz/specially/free_lesbian_porn_trailer.html free lesbian porn trailer - http://adult.48d.biz/specially/free_lesbian_porn_gallery.html free lesbian porn gallery - http://adult.48d.biz/specially/lesbian_porn_story.html lesbian porn story - http://adult.48d.biz/specially/lesbian_porn_dvd.html lesbian porn dvd - http://adult.48d.biz/specially/free_hot_lesbian_porn.html free hot lesbian porn - http://adult.48d.biz/specially/amateur_lesbian_porn.html amateur lesbian porn - http://adult.48d.biz/specially/free_lesbian_porn_video_clip.html free lesbian porn video clip - http://adult.48d.biz/specially/young_lesbian_porn.html young lesbian porn - http://adult.48d.biz/specially/free_hardcore_lesbian_porn.html free hardcore lesbian porn - http://adult.48d.biz/specially/free_asian_lesbian_porn.html free asian lesbian porn - http://adult.48d.biz/specially/free_lesbian_porn_downloads.html free lesbian porn downloads - http://adult.48d.biz/specially/interracial_lesbian_porn.html interracial lesbian porn - http://adult.48d.biz/specially/latina_lesbian_porn.html latina lesbian porn - http://adult.48d.biz/specially/lesbian_reality_porn.html lesbian reality porn - http://adult.48d.biz/specially/gay_lesbian_porn.html gay lesbian porn - http://adult.48d.biz/specially/adult_lesbian_porn.html adult lesbian porn - http://adult.48d.biz/specially/lesbian_sex_porn_free.html lesbian sex porn free - http://adult.48d.biz/specially/lesbian_porn_video_clip.html lesbian porn video clip - http://adult.48d.biz/specially/free_lesbian_porn_sample_video.html free lesbian porn sample video - http://adult.48d.biz/specially/free_xxx_lesbian_porn.html free xxx lesbian porn - http://adult.48d.biz/specially/free_lesbian_porn_sample.html free lesbian porn sample - http://adult.48d.biz/specially/fat_lesbian_porn.html fat lesbian porn - http://adult.48d.biz/specially/lesbian_porn_photo.html lesbian porn photo - http://adult.48d.biz/specially/soft_lesbian_porn.html soft lesbian porn - http://adult.48d.biz/specially/lesbian_strap_on_porn.html lesbian strap on porn - http://adult.48d.biz/specially/vintage_lesbian_porn.html vintage lesbian porn - http://adult.48d.biz/specially/hot_teen_lesbian_porn.html hot teen lesbian porn - http://adult.48d.biz/specially/hard_core_lesbian_porn.html hard core lesbian porn - http://adult.48d.biz/specially/clip_lesbian_porn_vibrator.html clip lesbian porn vibrator - http://adult.48d.biz/specially/first_time_lesbian_porn.html first time lesbian porn - http://adult.48d.biz/specially/free_lesbian_porn_online.html free lesbian porn online - http://adult.48d.biz/specially/lesbian_tranny_porn.html lesbian tranny porn - http://adult.48d.biz/specially/free_lesbian_anime_porn.html free lesbian anime porn - http://adult.48d.biz/specially/free_lesbian_porn_story.html free lesbian porn story - http://adult.48d.biz/specially/sexy_lesbian_porn.html sexy lesbian porn - http://adult.48d.biz/specially/teenage_lesbian_porn.html teenage lesbian porn - http://adult.48d.biz/specially/free_ebony_lesbian_porn.html free ebony lesbian porn - http://adult.48d.biz/specially/lesbian_teacher_porn.html lesbian teacher porn - http://adult.48d.biz/specially/hentai_lesbian_porn.html hentai lesbian porn - http://adult.48d.biz/specially/lesbian_porn_sample.html lesbian porn sample - http://adult.48d.biz/specially/porn_lesbian_tit.html porn lesbian tit - http://adult.48d.biz/specially/lesbian_porn_video_online.html lesbian porn video online - http://adult.48d.biz/specially/blonde_lesbian_porn.html blonde lesbian porn - http://adult.48d.biz/specially/lesbian_porn_vids.html lesbian porn vids - http://adult.48d.biz/specially/free_lesbian_porn_movie_clip.html free lesbian porn movie clip - http://adult.48d.biz/specially/free_lesbian_porn_preview.html free lesbian porn preview - http://adult.48d.biz/specially/free_amateur_lesbian_porn.html free amateur lesbian porn - http://adult.48d.biz/specially/we_live_together_lesbian_porn.html we live together lesbian porn - http://adult.48d.biz/specially/free_black_lesbian_porn_video.html free black lesbian porn video - http://adult.48d.biz/specially/black_lesbian_porn_site.html black lesbian porn site - http://adult.48d.biz/specially/free_lesbian_porn_vids.html free lesbian porn vids - http://adult.48d.biz/specially/lesbian_porn_sample_video.html lesbian porn sample video - http://adult.48d.biz/specially/free_download_lesbian_porn.html free download lesbian porn - http://adult.48d.biz/specially/asian_porn_star_lesbian.html asian porn star lesbian - http://adult.48d.biz/specially/hot_lesbian_porn_star.html hot lesbian porn star - http://adult.48d.biz/specially/old_lesbian_porn.html old lesbian porn - http://adult.48d.biz/specially/real_lesbian_porn.html real lesbian porn - http://adult.48d.biz/specially/college_lesbian_porn.html college lesbian porn - http://adult.48d.biz/specially/free_lesbian_porn_star.html free lesbian porn star - http://adult.48d.biz/specially/black_lesbian_porn_movie.html black lesbian porn movie - http://adult.48d.biz/specially/lesbian_porn_star_strap_on.html lesbian porn star strap on - http://adult.48d.biz/specially/lesbian_porn_photo_gallery.html lesbian porn photo gallery - http://adult.48d.biz/specially/lesbian_toon_porn.html lesbian toon porn - http://adult.48d.biz/specially/japanese_lesbian_porn.html japanese lesbian porn - http://adult.48d.biz/specially/lesbian_porn_web_site.html lesbian porn web site - http://adult.48d.biz/specially/latin_lesbian_porn.html latin lesbian porn - http://adult.48d.biz/specially/black_lesbian_porn_pic.html black lesbian porn pic - http://adult.48d.biz/specially/lesbian_anal_porn.html lesbian anal porn - http://adult.48d.biz/specially/lesbian_porn_comic.html lesbian porn comic - http://adult.48d.biz/specially/lesbian_porn_star_movie.html lesbian porn star movie - http://adult.48d.biz/specially/lsbian_porn.html lsbian porn - http://adult.48d.biz/specially/lebian_porn.html lebian porn - http://adult.48d.biz/specially/lesian_porn.html lesian porn - http://adult.48d.biz/specially/lesban_porn.html lesban porn - http://adult.48d.biz/specially/lesbin_porn.html lesbin porn - http://adult.48d.biz/specially/lesbia_porn.html lesbia porn - http://adult.48d.biz/specially/lesbianporn.html lesbianporn - http://adult.48d.biz/specially/lesbian_orn.html lesbian orn - http://adult.48d.biz/specially/lesbian_prn.html lesbian prn - http://adult.48d.biz/specially/lesbian_pon.html lesbian pon - http://adult.48d.biz/specially/lesbian_por.html lesbian por - http://adult.48d.biz/specially/leesbian_porn.html leesbian porn - http://adult.48d.biz/specially/lessbian_porn.html lessbian porn - http://adult.48d.biz/specially/lesbbian_porn.html lesbbian porn - http://adult.48d.biz/specially/lesbiian_porn.html lesbiian porn - http://adult.48d.biz/specially/lesbiaan_porn.html lesbiaan porn - http://adult.48d.biz/specially/lesbiann_porn.html lesbiann porn - http://adult.48d.biz/specially/lesbian__porn.html lesbian porn - http://adult.48d.biz/specially/lesbian_pporn.html lesbian pporn - http://adult.48d.biz/specially/lesbian_poorn.html lesbian poorn - http://adult.48d.biz/specially/lesbian_porrn.html lesbian porrn - http://adult.48d.biz/specially/lesbian_pornn.html lesbian pornn - http://adult.48d.biz/specially/lesbian_porn.html lesbian porn -
| + | Maintained by Jonathan North Washington and Ian Adams |
| | | |
− | http://adult.48d.biz/specially2/free_porn_movie.html free porn movie - http://adult.48d.biz/specially2/free_porn_video.html free porn video - http://adult.48d.biz/specially2/free_porn_pic.html free porn pic - http://adult.48d.biz/specially2/free_porn_clip.html free porn clip - http://adult.48d.biz/specially2/free_porn_site.html free porn site - http://adult.48d.biz/specially2/free_gay_porn.html free gay porn - http://adult.48d.biz/specially2/free_porn_gallery.html free porn gallery - http://adult.48d.biz/specially2/free_lesbian_porn.html free lesbian porn - http://adult.48d.biz/specially2/free_teen_porn.html free teen porn - http://adult.48d.biz/specially2/free_black_porn.html free black porn - http://adult.48d.biz/specially2/free_porn_downloads.html free porn downloads - http://adult.48d.biz/specially2/free_porn_trailer.html free porn trailer - http://adult.48d.biz/specially2/free_porn_video_clip.html free porn video clip - http://adult.48d.biz/specially2/free_xxx_porn.html free xxx porn - http://adult.48d.biz/specially2/free_hardcore_porn.html free hardcore porn - http://adult.48d.biz/specially2/free_asian_porn.html free asian porn - http://adult.48d.biz/specially2/free_cartoon_porn.html free cartoon porn - http://adult.48d.biz/specially2/free_adult_porn.html free adult porn - http://adult.48d.biz/specially2/free_porn_mpeg.html free porn mpeg - http://adult.48d.biz/specially2/free_anime_porn.html free anime porn - http://adult.48d.biz/specially2/free_porn_vids.html free porn vids - http://adult.48d.biz/specially2/free_porn_story.html free porn story - http://adult.48d.biz/specially2/free_porn_movie_clip.html free porn movie clip - http://adult.48d.biz/specially2/free_mature_porn.html free mature porn - http://adult.48d.biz/specially2/free_porn_star.html free porn star - http://adult.48d.biz/specially2/free_amateur_porn.html free amateur porn - http://adult.48d.biz/specially2/free_porn_sample.html free porn sample - http://adult.48d.biz/specially2/free_porn_password.html free porn password - http://adult.48d.biz/specially2/free_sex_porn.html free sex porn - http://adult.48d.biz/specially2/free_porn_thumbnail.html free porn thumbnail - http://adult.48d.biz/specially2/free_daily_porn.html free daily porn - http://adult.48d.biz/specially2/free_porn_star_movie.html free porn star movie - http://adult.48d.biz/specially2/free_porn_video_sample.html free porn video sample - http://adult.48d.biz/specially2/free_celebrity_porn.html free celebrity porn - http://adult.48d.biz/specially2/free_web_cam_porn.html free web cam porn - http://adult.48d.biz/specially2/free_porn_game.html free porn game - http://adult.48d.biz/specially2/free_pic_porn.html free pic porn - http://adult.48d.biz/specially2/free_lesbian_porn_video.html free lesbian porn video - http://adult.48d.biz/specially2/free_porn_photo.html free porn photo - http://adult.48d.biz/specially2/free_ebony_porn.html free ebony porn - http://adult.48d.biz/specially2/free_anal_porn.html free anal porn - http://adult.48d.biz/specially2/download_free_porn_movie.html download free porn movie - http://adult.48d.biz/specially2/free_gay_porn_video.html free gay porn video - http://adult.48d.biz/specially2/free_porn_star_pic.html free porn star pic - http://adult.48d.biz/specially2/free_teen_porn_movie.html free teen porn movie - http://adult.48d.biz/specially2/free_porn_preview.html free porn preview - http://adult.48d.biz/specially2/free_online_porn.html free online porn - http://adult.48d.biz/specially2/free_porn_links.html free porn links - http://adult.48d.biz/specially2/free_black_porn_movie.html free black porn movie - http://adult.48d.biz/specially2/free_full_length_porn_movie.html free full length porn movie - http://adult.48d.biz/specially2/free_gay_porn_movie.html free gay porn movie - http://adult.48d.biz/specially2/free_disney_porn.html free disney porn - http://adult.48d.biz/specially2/free_teen_porn_video.html free teen porn video - http://adult.48d.biz/specially2/free_indian_porn.html free indian porn - http://adult.48d.biz/specially2/free_porn_thumb.html free porn thumb - http://adult.48d.biz/specially2/free_young_porn.html free young porn - http://adult.48d.biz/specially2/free_porn_star_gallery.html free porn star gallery - http://adult.48d.biz/specially2/free_porn_movie_downloads.html free porn movie downloads - http://adult.48d.biz/specially2/free_porn_movie_sample.html free porn movie sample - http://adult.48d.biz/specially2/free_lesbian_porn_movie.html free lesbian porn movie - http://adult.48d.biz/specially2/free_toon_porn.html free toon porn - http://adult.48d.biz/specially2/free_teen_porn_pic.html free teen porn pic - http://adult.48d.biz/specially2/free_celeb_porn.html free celeb porn - http://adult.48d.biz/specially2/free_porn_web_site.html free porn web site - http://adult.48d.biz/specially2/free_porn_no_credit_card.html free porn no credit card - http://adult.48d.biz/specially2/free_porn_film.html free porn film - http://adult.48d.biz/specially2/free_latina_porn.html free latina porn - http://adult.48d.biz/specially2/free_black_porn_video.html free black porn video - http://adult.48d.biz/specially2/free_live_porn.html free live porn - http://adult.48d.biz/specially2/free_interracial_porn.html free interracial porn - http://adult.48d.biz/specially2/free_paris_hilton_porn.html free paris hilton porn - http://adult.48d.biz/specially2/free_milf_porn.html free milf porn - http://adult.48d.biz/specially2/free_porn_for_woman.html free porn for woman - http://adult.48d.biz/specially2/free_long_porn_movie.html free long porn movie - http://adult.48d.biz/specially2/free_asian_porn_movie.html free asian porn movie - http://adult.48d.biz/specially2/free_hardcore_porn_video.html free hardcore porn video - http://adult.48d.biz/specially2/free_porn_star_video.html free porn star video - http://adult.48d.biz/specially2/free_porn_movie_gallery.html free porn movie gallery - http://adult.48d.biz/specially2/free_hard_core_porn.html free hard core porn - http://adult.48d.biz/specially2/free_hentai_porn.html free hentai porn - http://adult.48d.biz/specially2/free_porn_video_download.html free porn video download - http://adult.48d.biz/specially2/free_porn_comic.html free porn comic - http://adult.48d.biz/specially2/free_hot_porn.html free hot porn - http://adult.48d.biz/specially2/free_online_porn_video.html free online porn video - http://adult.48d.biz/specially2/free_porn_movie_trailer.html free porn movie trailer - http://adult.48d.biz/specially2/free_hardcore_porn_movie.html free hardcore porn movie - http://adult.48d.biz/specially2/free_full_length_porn.html free full length porn - http://adult.48d.biz/specially2/free_xxx_porn_movie.html free xxx porn movie - http://adult.48d.biz/specially2/free_gay_porn_clip.html free gay porn clip - http://adult.48d.biz/specially2/free_porn_video_downloads.html free porn video downloads - http://adult.48d.biz/specially2/free_fat_porn.html free fat porn - http://adult.48d.biz/specially2/free_shemale_porn.html free shemale porn - http://adult.48d.biz/specially2/free_xxx_porn_video.html free xxx porn video - http://adult.48d.biz/specially2/free_teen_porn_gallery.html free teen porn gallery - http://adult.48d.biz/specially2/free_asian_porn_video.html free asian porn video - http://adult.48d.biz/specially2/free_bbw_porn.html free bbw porn - http://adult.48d.biz/specially2/free_black_porn_clip.html free black porn clip - http://adult.48d.biz/specially2/free_trial_porn.html free trial porn - http://adult.48d.biz/specially2/free_gay_porn_pic.html free gay porn pic - http://adult.48d.biz/specially2/fee_porn.html fee porn - http://adult.48d.biz/specially2/fre_porn.html fre porn - http://adult.48d.biz/specially2/fre_porn.html fre porn - http://adult.48d.biz/specially2/freeporn.html freeporn - http://adult.48d.biz/specially2/free_orn.html free orn - http://adult.48d.biz/specially2/free_prn.html free prn - http://adult.48d.biz/specially2/free_pon.html free pon - http://adult.48d.biz/specially2/free_por.html free por - http://adult.48d.biz/specially2/frree_porn.html frree porn - http://adult.48d.biz/specially2/freee_porn.html freee porn - http://adult.48d.biz/specially2/freee_porn.html freee porn - http://adult.48d.biz/specially2/free__porn.html free porn - http://adult.48d.biz/specially2/free_pporn.html free pporn - http://adult.48d.biz/specially2/free_poorn.html free poorn - http://adult.48d.biz/specially2/free_porrn.html free porrn - http://adult.48d.biz/specially2/free_pornn.html free pornn - http://adult.48d.biz/specially2/free_porn.html free porn - | + | [http://www.cs.brandeis.edu/~cs31a/ The Course Website] |
| | | |
− | http://adult.48d.biz/specially3/free_gay_porn_video.html free gay porn video - http://adult.48d.biz/specially3/free_gay_porn_movie.html free gay porn movie - http://adult.48d.biz/specially3/free_gay_porn_clip.html free gay porn clip - http://adult.48d.biz/specially3/free_gay_porn_pic.html free gay porn pic - http://adult.48d.biz/specially3/free_gay_black_porn.html free gay black porn - http://adult.48d.biz/specially3/free_gay_male_porn.html free gay male porn - http://adult.48d.biz/specially3/free_gay_porn_picture.html free gay porn picture - http://adult.48d.biz/specially3/free_gay_porn_site.html free gay porn site - http://adult.48d.biz/specially3/free_gay_porn_gallery.html free gay porn gallery - http://adult.48d.biz/specially3/free_gay_man_porn.html free gay man porn - http://adult.48d.biz/specially3/free_gay_teen_porn.html free gay teen porn - http://adult.48d.biz/specially3/free_gay_porn_video_clip.html free gay porn video clip - http://adult.48d.biz/specially3/free_hardcore_gay_porn.html free hardcore gay porn - http://adult.48d.biz/specially3/free_gay_porn_downloads.html free gay porn downloads - http://adult.48d.biz/specially3/free_gay_porn_trailer.html free gay porn trailer - http://adult.48d.biz/specially3/free_young_gay_porn.html free young gay porn - http://adult.48d.biz/specially3/free_xxx_gay_porn.html free xxx gay porn - http://adult.48d.biz/specially3/download_free_gay_porn.html download free gay porn - http://adult.48d.biz/specially3/free_gay_porn_movie_clip.html free gay porn movie clip - http://adult.48d.biz/specially3/free_gay_porn_sex.html free gay porn sex - http://adult.48d.biz/specially3/free_gay_asian_porn.html free gay asian porn - http://adult.48d.biz/specially3/free_gay_porn_preview.html free gay porn preview - http://adult.48d.biz/specially3/free_gay_porn_links.html free gay porn links - http://adult.48d.biz/specially3/free_gay_twinks_porn.html free gay twinks porn - http://adult.48d.biz/specially3/free_gay_bear_porn.html free gay bear porn - http://adult.48d.biz/specially3/free_gay_male_porn_pic.html free gay male porn pic - http://adult.48d.biz/specially3/free_gay_porn_sample.html free gay porn sample - http://adult.48d.biz/specially3/free_gay_guy_porn.html free gay guy porn - http://adult.48d.biz/specially3/free_gay_porn_vids.html free gay porn vids - http://adult.48d.biz/specially3/free_gay_porn_story.html free gay porn story - http://adult.48d.biz/specially3/free_gay_porn_finder.html free gay porn finder - http://adult.48d.biz/specially3/free_gay_black_porn_video.html free gay black porn video - http://adult.48d.biz/specially3/free_gay_latino_porn.html free gay latino porn - http://adult.48d.biz/specially3/free_gay_porn_photo.html free gay porn photo - http://adult.48d.biz/specially3/free_amateur_gay_porn.html free amateur gay porn - http://adult.48d.biz/specially3/free_gay_male_porn_video.html free gay male porn video - http://adult.48d.biz/specially3/free_black_gay_porn_movie.html free black gay porn movie - http://adult.48d.biz/specially3/free_gay_porn_web_site.html free gay porn web site - http://adult.48d.biz/specially3/free_gay_cartoon_porn.html free gay cartoon porn - http://adult.48d.biz/specially3/free_daily_gay_porn.html free daily gay porn - http://adult.48d.biz/specially3/free_gay_porn_mpeg.html free gay porn mpeg - http://adult.48d.biz/specially3/free_gay_porn_too.html free gay porn too - http://adult.48d.biz/specially3/free_gay_porn_password.html free gay porn password - http://adult.48d.biz/specially3/free_adult_gay_porn.html free adult gay porn - http://adult.48d.biz/specially3/free_gay_latin_porn.html free gay latin porn - http://adult.48d.biz/specially3/hot_free_gay_porn.html hot free gay porn - http://adult.48d.biz/specially3/free_gay_interracial_porn.html free gay interracial porn - http://adult.48d.biz/specially3/free_gay_man_porn_video.html free gay man porn video - http://adult.48d.biz/specially3/free_gay_anime_porn.html free gay anime porn - http://adult.48d.biz/specially3/free_gay_porn_sample_video.html free gay porn sample video - http://adult.48d.biz/specially3/free_gay_military_porn.html free gay military porn - http://adult.48d.biz/specially3/free_gay_black_man_porn.html free gay black man porn - http://adult.48d.biz/specially3/free_gay_muscle_porn.html free gay muscle porn - http://adult.48d.biz/specially3/free_gay_porn_thumbnail.html free gay porn thumbnail - http://adult.48d.biz/specially3/free_full_length_gay_porn.html free full length gay porn - http://adult.48d.biz/specially3/download_free_gay_porn_movie.html download free gay porn movie - http://adult.48d.biz/specially3/free_gay_porn_pic_post.html free gay porn pic post - http://adult.48d.biz/specially3/free_gay_ebony_porn.html free gay ebony porn - http://adult.48d.biz/specially3/free_big_cock_porn_gay.html free big cock porn gay - http://adult.48d.biz/specially3/free_gay_anal_porn.html free gay anal porn - http://adult.48d.biz/specially3/young_gay_porn_free_gallery.html young gay porn free gallery - http://adult.48d.biz/specially3/free_online_gay_porn.html free online gay porn - http://adult.48d.biz/specially3/watch_free_gay_porn.html watch free gay porn - http://adult.48d.biz/specially3/free_mature_gay_porn.html free mature gay porn - http://adult.48d.biz/specially3/free_gay_porn_trial.html free gay porn trial - http://adult.48d.biz/specially3/free_black_gay_porn_clip.html free black gay porn clip - http://adult.48d.biz/specially3/free_gay_male_porn_movie.html free gay male porn movie - http://adult.48d.biz/specially3/free_gay_man_porn_pic.html free gay man porn pic - http://adult.48d.biz/specially3/free_gay_porn_star.html free gay porn star - http://adult.48d.biz/specially3/free_gay_thug_porn.html free gay thug porn - http://adult.48d.biz/specially3/free_gay_college_porn.html free gay college porn - http://adult.48d.biz/specially3/free_gay_male_porn_video_clip.html free gay male porn video clip - http://adult.48d.biz/specially3/free_online_gay_porn_movie.html free online gay porn movie - http://adult.48d.biz/specially3/free_gay_porn_movie_downloads.html free gay porn movie downloads - http://adult.48d.biz/specially3/free_gay_porn_sex_video.html free gay porn sex video - http://adult.48d.biz/specially3/free_vintage_gay_porn.html free vintage gay porn - http://adult.48d.biz/specially3/free_gay_porn_email.html free gay porn email - http://adult.48d.biz/specially3/gay_tgp_free_stud_porn_teen_jock.html gay tgp free stud porn teen jock - http://adult.48d.biz/specially3/free_gay_porn_free.html free gay porn free - http://adult.48d.biz/specially3/free_gay_porn_card.html free gay porn card - http://adult.48d.biz/specially3/free_gay_black_male_porn.html free gay black male porn - http://adult.48d.biz/specially3/free_gay_porn_picture_gallery.html free gay porn picture gallery - http://adult.48d.biz/specially3/best_free_gay_porn.html best free gay porn - http://adult.48d.biz/specially3/free_gay_xxx_porn_movie.html free gay xxx porn movie - http://adult.48d.biz/specially3/free_gay_lesbian_porn.html free gay lesbian porn - http://adult.48d.biz/specially3/free_streaming_gay_porn.html free streaming gay porn - http://adult.48d.biz/specially3/free_gay_bareback_porn.html free gay bareback porn - http://adult.48d.biz/specially3/free_sample_gay_porn_clip.html free sample gay porn clip - http://adult.48d.biz/specially3/free_gay_black_porn_site.html free gay black porn site - http://adult.48d.biz/specially3/free_online_gay_male_porn.html free online gay male porn - http://adult.48d.biz/specially3/free_gay_porn_video_online.html free gay porn video online - http://adult.48d.biz/specially3/free_youngest_gay_porn.html free youngest gay porn - http://adult.48d.biz/specially3/free_gay_male_porn_picture.html free gay male porn picture - http://adult.48d.biz/specially3/free_gay_toon_porn.html free gay toon porn - http://adult.48d.biz/specially3/free_gay_porn_directory.html free gay porn directory - http://adult.48d.biz/specially3/free_downloadable_gay_porn.html free downloadable gay porn - http://adult.48d.biz/specially3/free_full_length_gay_porn_video.html free full length gay porn video - http://adult.48d.biz/specially3/free_gay_porn_movie_gallery.html free gay porn movie gallery - http://adult.48d.biz/specially3/free_gay_sex_porn_pic.html free gay sex porn pic - http://adult.48d.biz/specially3/fee_gay_porn.html fee gay porn - http://adult.48d.biz/specially3/fre_gay_porn.html fre gay porn - http://adult.48d.biz/specially3/fre_gay_porn.html fre gay porn - http://adult.48d.biz/specially3/freegay_porn.html freegay porn - http://adult.48d.biz/specially3/free_ay_porn.html free ay porn - http://adult.48d.biz/specially3/free_gy_porn.html free gy porn - http://adult.48d.biz/specially3/free_ga_porn.html free ga porn - http://adult.48d.biz/specially3/free_gayporn.html free gayporn - http://adult.48d.biz/specially3/free_gay_orn.html free gay orn - http://adult.48d.biz/specially3/free_gay_prn.html free gay prn - http://adult.48d.biz/specially3/free_gay_pon.html free gay pon - http://adult.48d.biz/specially3/free_gay_por.html free gay por - http://adult.48d.biz/specially3/frree_gay_porn.html frree gay porn - http://adult.48d.biz/specially3/freee_gay_porn.html freee gay porn - http://adult.48d.biz/specially3/freee_gay_porn.html freee gay porn - http://adult.48d.biz/specially3/free__gay_porn.html free gay porn - http://adult.48d.biz/specially3/free_ggay_porn.html free ggay porn - http://adult.48d.biz/specially3/free_gaay_porn.html free gaay porn - http://adult.48d.biz/specially3/free_gayy_porn.html free gayy porn - http://adult.48d.biz/specially3/free_gay__porn.html free gay porn - http://adult.48d.biz/specially3/free_gay_pporn.html free gay pporn - http://adult.48d.biz/specially3/free_gay_poorn.html free gay poorn - http://adult.48d.biz/specially3/free_gay_porrn.html free gay porrn - http://adult.48d.biz/specially3/free_gay_pornn.html free gay pornn - http://adult.48d.biz/specially3/free_gay_porn.html free gay porn -
| |
| | | |
| + | == Wrong Book on Reserve == |
| | | |
− | http://adult.48d.biz/special/free_online_porn.html free online porn - http://adult.48d.biz/special/free_online_porn_video.html free online porn video - http://adult.48d.biz/special/free_porn_movie_online.html free porn movie online - http://adult.48d.biz/special/free_online_porn_game.html free online porn game - http://adult.48d.biz/special/watch_free_porn_online.html watch free porn online - http://adult.48d.biz/special/free_online_porn_clip.html free online porn clip - http://adult.48d.biz/special/watch_free_porn_movie_online.html watch free porn movie online - http://adult.48d.biz/special/free_lesbian_porn_online.html free lesbian porn online - http://adult.48d.biz/special/watch_free_porn_video_online.html watch free porn video online - http://adult.48d.biz/special/adult_porn_online_for_free.html adult porn online for free - http://adult.48d.biz/special/free_online_porn_site.html free online porn site - http://adult.48d.biz/special/free_porn_video_clip_online.html free porn video clip online - http://adult.48d.biz/special/free_online_porn_story.html free online porn story - http://adult.48d.biz/special/free_online_gay_porn.html free online gay porn - http://adult.48d.biz/special/free_online_web_cam_porn.html free online web cam porn - http://adult.48d.biz/special/free_online_porn_picture.html free online porn picture - http://adult.48d.biz/special/free_online_porn_pic.html free online porn pic - http://adult.48d.biz/special/free_online_gay_porn_movie.html free online gay porn movie - http://adult.48d.biz/special/adult_free_game_online_porn.html adult free game online porn - http://adult.48d.biz/special/free_black_porn_online.html free black porn online - http://adult.48d.biz/special/free_online_anime_porn.html free online anime porn - http://adult.48d.biz/special/free_porn_game_to_play_online.html free porn game to play online - http://adult.48d.biz/special/free_online_porn_trailer.html free online porn trailer - http://adult.48d.biz/special/free_online_gay_male_porn.html free online gay male porn - http://adult.48d.biz/special/free_gay_porn_video_online.html free gay porn video online - http://adult.48d.biz/special/free_sex_porn_online.html free sex porn online - http://adult.48d.biz/special/free_online_asian_porn.html free online asian porn - http://adult.48d.biz/special/free_online_black_porn_video.html free online black porn video - http://adult.48d.biz/special/find_free_online_porn_where.html find free online porn where - http://adult.48d.biz/special/free_porn_online_xxx.html free porn online xxx - http://adult.48d.biz/special/free_porn_movie_clip_online.html free porn movie clip online - http://adult.48d.biz/special/free_online_lesbian_porn_video.html free online lesbian porn video - http://adult.48d.biz/special/free_online_porn_flick.html free online porn flick - http://adult.48d.biz/special/free_online_porn_tv.html free online porn tv - http://adult.48d.biz/special/free_online_porn_chat.html free online porn chat - http://adult.48d.biz/special/free_online_porn_vids.html free online porn vids - http://adult.48d.biz/special/free_online_porn_comic.html free online porn comic - http://adult.48d.biz/special/free_online_hardcore_porn.html free online hardcore porn - http://adult.48d.biz/special/free_online_porn_magazine.html free online porn magazine - http://adult.48d.biz/special/free_online_full_length_porn.html free online full length porn - http://adult.48d.biz/special/free_online_porn_teen_video.html free online porn teen video - http://adult.48d.biz/special/free_anime_porn_game_online.html free anime porn game online - http://adult.48d.biz/special/free_online_teen_porn.html free online teen porn - http://adult.48d.biz/special/view_free_online_porn.html view free online porn - http://adult.48d.biz/special/free_online_porn_downloads.html free online porn downloads - http://adult.48d.biz/special/free_online_flash_porn_game.html free online flash porn game - http://adult.48d.biz/special/free_black_porn_movie_online.html free black porn movie online - http://adult.48d.biz/special/free_online_cartoon_porn.html free online cartoon porn - http://adult.48d.biz/special/free_online_porn_photo.html free online porn photo - http://adult.48d.biz/special/free_online_porn_movie_for_download.html free online porn movie for download - http://adult.48d.biz/special/online_live_porn_free.html online live porn free - http://adult.48d.biz/special/hot_free_porn_online.html hot free porn online - http://adult.48d.biz/special/free_lesbian_porn_movie_online.html free lesbian porn movie online - http://adult.48d.biz/special/watch_free_porn_clip_online.html watch free porn clip online - http://adult.48d.biz/special/free_online_porn_film.html free online porn film - http://adult.48d.biz/special/free_online_porn_video_sex.html free online porn video sex - http://adult.48d.biz/special/adult_film_free_online_porn_watch.html adult film free online porn watch - http://adult.48d.biz/special/free_online_porn_gallery.html free online porn gallery - http://adult.48d.biz/special/feed_free_movie_online_porn.html feed free movie online porn - http://adult.48d.biz/special/free_anime_porn_video_online.html free anime porn video online - http://adult.48d.biz/special/free_online_porn_cam.html free online porn cam - http://adult.48d.biz/special/free_online_porn_of_hillary_duff.html free online porn of hillary duff - http://adult.48d.biz/special/free_hardcore_porn_video_online.html free hardcore porn video online - http://adult.48d.biz/special/free_here_online_porn_watch.html free here online porn watch - http://adult.48d.biz/special/free_online_porn_video_sample.html free online porn video sample - http://adult.48d.biz/special/view_free_porn_video_online.html view free porn video online - http://adult.48d.biz/special/fee_porno_online.html fee porno online - http://adult.48d.biz/special/fre_porno_online.html fre porno online - http://adult.48d.biz/special/fre_porno_online.html fre porno online - http://adult.48d.biz/special/freeporno_online.html freeporno online - http://adult.48d.biz/special/free_orno_online.html free orno online - http://adult.48d.biz/special/free_prno_online.html free prno online - http://adult.48d.biz/special/free_pono_online.html free pono online - http://adult.48d.biz/special/free_poro_online.html free poro online - http://adult.48d.biz/special/free_porn_online.html free porn online - http://adult.48d.biz/special/free_pornoonline.html free pornoonline - http://adult.48d.biz/special/free_porno_nline.html free porno nline - http://adult.48d.biz/special/free_porno_oline.html free porno oline - http://adult.48d.biz/special/free_porno_onine.html free porno onine - http://adult.48d.biz/special/free_porno_onlne.html free porno onlne - http://adult.48d.biz/special/free_porno_onlie.html free porno onlie - http://adult.48d.biz/special/free_porno_onlin.html free porno onlin - http://adult.48d.biz/special/frree_porno_online.html frree porno online - http://adult.48d.biz/special/freee_porno_online.html freee porno online - http://adult.48d.biz/special/freee_porno_online.html freee porno online - http://adult.48d.biz/special/free__porno_online.html free porno online - http://adult.48d.biz/special/free_pporno_online.html free pporno online - http://adult.48d.biz/special/free_poorno_online.html free poorno online - http://adult.48d.biz/special/free_porrno_online.html free porrno online - http://adult.48d.biz/special/free_pornno_online.html free pornno online - http://adult.48d.biz/special/free_pornoo_online.html free pornoo online - http://adult.48d.biz/special/free_porno__online.html free porno online - http://adult.48d.biz/special/free_porno_oonline.html free porno oonline - http://adult.48d.biz/special/free_porno_onnline.html free porno onnline - http://adult.48d.biz/special/free_porno_onlline.html free porno onlline - http://adult.48d.biz/special/free_porno_onliine.html free porno onliine - http://adult.48d.biz/special/free_porno_onlinne.html free porno onlinne - http://adult.48d.biz/special/free_porno_onlinee.html free porno onlinee - http://adult.48d.biz/special/free_porno_online.html free porno online -
| + | The first written assignment in the class was given to us as a couple problems and a list of problems that were supposedly to be found in the textbook. The textbook was on reserve in the science library, and I'd ordered mine online and it hadn't arrived yet, so I went to the library and xeroxed a couple pages of their copy. |
| + | |
| + | When my textbook arrived a week later--after I had turned in the problem set--I noticed a few difference between it and the one on reserve in the library, yet they were supposedly the same edition of the same book, with the same ISBN number(!!). I also noticed that one of the problems that I'd done was differently numbered in the two editions. This bothered me. I posted to the newsgroup about this to inform the TAs and prof of the problem (mentioning that I was concerned that I may have done the wrong problem), and a TA responded that the correct textbook was in the library, that it was our responsibilty to have the correct textbook, and that we could check with other classmates who had the correct textbook to make sure we did as well. |
| + | |
| + | When I got my assignment back yet another week or two later, graded, I'd lost all the possible points on one problem (the one that was misnumbered), with a comment from the TA/grader saying I'd done the wrong problem. When I brought up the issue with the textbook in light of my grade and this comment, they said that I should redo the problem and submit it to them within 24 hours. I did this. Then they said that I was supposed to've just resubmitted the assignment, and they'd've graded the problem that I did as if it'd been the right one. I did this, and it worked out fine. |
| + | |
| + | Indeed, the copy of the textbook in the science library had been the wrong copy after all, despite being on paper the same exact version I had ordered, to the ISBN number. And yes, I ordered the correct version, but a handful of people in the class had not (oh well), including Ian. Several times throughout the class, not only did he end up borrowing my textbook, but I ended up borrowing his; read on. |
| + | |
| + | == Assignment as a Word Document == |
| + | |
| + | In response to above incident, the TAs decided to scan the questions from the book and post the next assignment (PS2) on our class website. '''In Word Document format!''' '''''WITH THE QUESTIONS AS IMAGES!''''' Ian found the assignment first, and was shocked into converting it to pdf and putting it in his personal webspace, forwarding the url to the entire newsgroup. |
| + | |
| + | A few days later, the professor e-mailed Ian, CCing it to the TA, thanking him for posting the pdf, and asking the TA to copy the pdf over onto the class webpage, and to post all future assignments in pdf format. The copy of the assignment on the webpage remained in .doc format. |
| + | |
| + | |
| + | == Wrong Version of the Java Compiler for Grading == |
| + | ''written by Ian Adams'' |
| + | |
| + | The TAs, in explaining the requirements for the programming assignment, explained that the submissions were to compile in the latest version of Java at Brandeis, namely, the one on all of the machines in the Berry Patch. We were warned that other machines, not physically located in the Berry Patch, might not have the correct version, but rather an earlier one. |
| + | |
| + | Ian wrote code that compiled and ran on a Berry Patch machine, under the latest version of Java, and submitted it confident that there were no (major) bugs. A short while later, he recieved an email from one of the TAs, saying that his code didn't compile. He did include the compiler errors in the email, and by looking at them and the APIs of the versions of Java available at Brandeis, Ian concluded that the problem was that the compiler could not find methods only present in the later version of Java. He responded to the TA, asking where the TA had compiled, and that the code did indeed compile on a Berry Patch machine with the correct version of Java. |
| + | |
| + | The TA confessed to having done the testing on a non-public machine, one which was not in the Berry Patch and one which had the earlier--rather than the correct--version of Java. |
| + | |
| + | |
| + | == Problem Set #3 == |
| + | |
| + | Problem sets, in general, have been assigned on Wednesdays, and due the next Wednesday. PS3 was scheduled to be released on Wednesday, the 13th of October. It was not released that day. In class the next day (Thursday), the professor promised that the problem set would be posted later that day, and gave us an extra day to do the assignment, so that we would still have an entire week. It was not posted Thursday. At 1:10 A.M. on Friday, the third problem set was posted as a .doc file. I posted to the newsgroup so that they'd change the "Out" time to Friday. I then got an e-mail from the original TA in response to my first e-mail, saying that I should raise all of these issues with the professor. An hour or two later, another TA--one not yet involved in these adventures--posted the problem set in .pdf format and fixed the "Out" time to reflect the fact that it was actually posted on Friday. |
| + | |
| + | The second question on the problem set was one scanned in from the book. This question asserted that, in the section of the chapter where disabling interrupts was suggested as a means of synchronization, that doing so could have an effect on the system clock. The section of the text had no mention of the system clock. The wrong version of the book had an identical question, except that the numbers (including the number of the section in question) were changed. This version did have a brief mention of the system clock that was not present in the correct version. The book contained an incorrect assertion about its own content, resulting in content needed for the question not being present in the correct book. The TAs did not pay close enough attention to the question they assigned to catch this beforehand. |
| + | |
| + | ''To Be Continued...'' |
| + | |
| + | |
| + | == The Final Programming Assignment == |
| + | |
| + | Ian and I submitted our final programming assignment for the class a minute and a handful of seconds before it was due. We tried to follow [http://www.cs.brandeis.edu/~cs31a/pa3/PA3.html the spec] as closely as possible. Many of the ways we implemented things, however, ended up having to specifically contradict the spec, since the spec itself was contradictory. We pointed these problems out in the README, as directed by the spec. When we turned in the physical copy, the README was the very first page. |
| + | |
| + | When we got an e-mail announcing our grade as 60/100, we were concerned—we were pretty sure we'd submitted an assignment which would receive more credit than that. We responded to the TA who had graded our assignment, asking what we'd lost points on specifically. He got back to us soon, informing us that he'd gone home for winter break already and had left the grading rubrics on campus, but he sent us a blank copy of the rubric by e-mail as a reference and said we could talk with him the next semester. |
| + | |
| + | So we come back from break and e-mail him again. He said he didn't have office hours this semester since he wasn't TAing, but he'd send the rubric to me by campus mail if I gave him my mailbox number. I did and the next time I checked my mail I had a copy of the rubric. Ian and I looked over at it. |
| + | |
| + | Of the 40 points we lost, 30 of the points had to deal with the same issue. The spec said the following: |
| + | <blockquote> |
| + | You will use the free list space management technique discussed in your textbook (12.5.2). More specifically, each block of the free list contains Disk.POINTERS_PER_BLOCK block numbers, where POINTERS_PER_BLOCK = BLOCKSIZE/4 (4 is the size of an integer in bytes). The first of these is the block number of the next block on the free list. The remaining entries are block numbers of additional free blocks (whose contents are assumed to be meaningless). While the system is running, you will want to keep a copy of the first block of the free list in memory. |
| + | </blockquote> |
| + | |
| + | So it made reference to something in the book that described how it was to be done, and they elaborated further upon it, saying specifically what they wanted. Or so it had seemed. Apparently what is said at that point in the book is a completely different system (where freelist just contains the address of the first free block, which itself has a chunk set aside which points to the next free block, etc). If one implements the freelist the way stated by the spec, it's bigger than they'd apparently anticipated, and so the number of blocks often must be changed to compensate. |
| + | |
| + | This was so in three of the test programs they ran on our filesystem. We'd pointed out—''very'' explicitly—in our README that for these tests (and others like it), one must add 1 to the number of blocks in order for the test to work. |
| + | |
| + | That's right—we lost 30 points because we'd implemented something the way they'd told us, even though they hadn't meant it that way, and because the value of a variable was off in their test/grading programs by 1, even when we made it very clear (if they'd bothered to read the README which we were required to submit) that they'd have to change that because of the conflict which we ran into on implementation. |
| + | |
| + | How were we supposed to know that the reference to the implementation from the book that they'd given us wasn't a typo? Especially when they'd described very clearly a different system which is also mentioned in the book, and which they'd talked about in class (and which in some ways is a better implementation).... |
Maintained by Jonathan North Washington and Ian Adams
The Course Website
Wrong Book on Reserve
The first written assignment in the class was given to us as a couple problems and a list of problems that were supposedly to be found in the textbook. The textbook was on reserve in the science library, and I'd ordered mine online and it hadn't arrived yet, so I went to the library and xeroxed a couple pages of their copy.
When my textbook arrived a week later--after I had turned in the problem set--I noticed a few difference between it and the one on reserve in the library, yet they were supposedly the same edition of the same book, with the same ISBN number(!!). I also noticed that one of the problems that I'd done was differently numbered in the two editions. This bothered me. I posted to the newsgroup about this to inform the TAs and prof of the problem (mentioning that I was concerned that I may have done the wrong problem), and a TA responded that the correct textbook was in the library, that it was our responsibilty to have the correct textbook, and that we could check with other classmates who had the correct textbook to make sure we did as well.
When I got my assignment back yet another week or two later, graded, I'd lost all the possible points on one problem (the one that was misnumbered), with a comment from the TA/grader saying I'd done the wrong problem. When I brought up the issue with the textbook in light of my grade and this comment, they said that I should redo the problem and submit it to them within 24 hours. I did this. Then they said that I was supposed to've just resubmitted the assignment, and they'd've graded the problem that I did as if it'd been the right one. I did this, and it worked out fine.
Indeed, the copy of the textbook in the science library had been the wrong copy after all, despite being on paper the same exact version I had ordered, to the ISBN number. And yes, I ordered the correct version, but a handful of people in the class had not (oh well), including Ian. Several times throughout the class, not only did he end up borrowing my textbook, but I ended up borrowing his; read on.
Assignment as a Word Document
In response to above incident, the TAs decided to scan the questions from the book and post the next assignment (PS2) on our class website. In Word Document format! WITH THE QUESTIONS AS IMAGES! Ian found the assignment first, and was shocked into converting it to pdf and putting it in his personal webspace, forwarding the url to the entire newsgroup.
A few days later, the professor e-mailed Ian, CCing it to the TA, thanking him for posting the pdf, and asking the TA to copy the pdf over onto the class webpage, and to post all future assignments in pdf format. The copy of the assignment on the webpage remained in .doc format.
Wrong Version of the Java Compiler for Grading
written by Ian Adams
The TAs, in explaining the requirements for the programming assignment, explained that the submissions were to compile in the latest version of Java at Brandeis, namely, the one on all of the machines in the Berry Patch. We were warned that other machines, not physically located in the Berry Patch, might not have the correct version, but rather an earlier one.
Ian wrote code that compiled and ran on a Berry Patch machine, under the latest version of Java, and submitted it confident that there were no (major) bugs. A short while later, he recieved an email from one of the TAs, saying that his code didn't compile. He did include the compiler errors in the email, and by looking at them and the APIs of the versions of Java available at Brandeis, Ian concluded that the problem was that the compiler could not find methods only present in the later version of Java. He responded to the TA, asking where the TA had compiled, and that the code did indeed compile on a Berry Patch machine with the correct version of Java.
The TA confessed to having done the testing on a non-public machine, one which was not in the Berry Patch and one which had the earlier--rather than the correct--version of Java.
Problem Set #3
Problem sets, in general, have been assigned on Wednesdays, and due the next Wednesday. PS3 was scheduled to be released on Wednesday, the 13th of October. It was not released that day. In class the next day (Thursday), the professor promised that the problem set would be posted later that day, and gave us an extra day to do the assignment, so that we would still have an entire week. It was not posted Thursday. At 1:10 A.M. on Friday, the third problem set was posted as a .doc file. I posted to the newsgroup so that they'd change the "Out" time to Friday. I then got an e-mail from the original TA in response to my first e-mail, saying that I should raise all of these issues with the professor. An hour or two later, another TA--one not yet involved in these adventures--posted the problem set in .pdf format and fixed the "Out" time to reflect the fact that it was actually posted on Friday.
The second question on the problem set was one scanned in from the book. This question asserted that, in the section of the chapter where disabling interrupts was suggested as a means of synchronization, that doing so could have an effect on the system clock. The section of the text had no mention of the system clock. The wrong version of the book had an identical question, except that the numbers (including the number of the section in question) were changed. This version did have a brief mention of the system clock that was not present in the correct version. The book contained an incorrect assertion about its own content, resulting in content needed for the question not being present in the correct book. The TAs did not pay close enough attention to the question they assigned to catch this beforehand.
To Be Continued...
The Final Programming Assignment
Ian and I submitted our final programming assignment for the class a minute and a handful of seconds before it was due. We tried to follow the spec as closely as possible. Many of the ways we implemented things, however, ended up having to specifically contradict the spec, since the spec itself was contradictory. We pointed these problems out in the README, as directed by the spec. When we turned in the physical copy, the README was the very first page.
When we got an e-mail announcing our grade as 60/100, we were concerned—we were pretty sure we'd submitted an assignment which would receive more credit than that. We responded to the TA who had graded our assignment, asking what we'd lost points on specifically. He got back to us soon, informing us that he'd gone home for winter break already and had left the grading rubrics on campus, but he sent us a blank copy of the rubric by e-mail as a reference and said we could talk with him the next semester.
So we come back from break and e-mail him again. He said he didn't have office hours this semester since he wasn't TAing, but he'd send the rubric to me by campus mail if I gave him my mailbox number. I did and the next time I checked my mail I had a copy of the rubric. Ian and I looked over at it.
Of the 40 points we lost, 30 of the points had to deal with the same issue. The spec said the following:
You will use the free list space management technique discussed in your textbook (12.5.2). More specifically, each block of the free list contains Disk.POINTERS_PER_BLOCK block numbers, where POINTERS_PER_BLOCK = BLOCKSIZE/4 (4 is the size of an integer in bytes). The first of these is the block number of the next block on the free list. The remaining entries are block numbers of additional free blocks (whose contents are assumed to be meaningless). While the system is running, you will want to keep a copy of the first block of the free list in memory.
So it made reference to something in the book that described how it was to be done, and they elaborated further upon it, saying specifically what they wanted. Or so it had seemed. Apparently what is said at that point in the book is a completely different system (where freelist just contains the address of the first free block, which itself has a chunk set aside which points to the next free block, etc). If one implements the freelist the way stated by the spec, it's bigger than they'd apparently anticipated, and so the number of blocks often must be changed to compensate.
This was so in three of the test programs they ran on our filesystem. We'd pointed out—very explicitly—in our README that for these tests (and others like it), one must add 1 to the number of blocks in order for the test to work.
That's right—we lost 30 points because we'd implemented something the way they'd told us, even though they hadn't meant it that way, and because the value of a variable was off in their test/grading programs by 1, even when we made it very clear (if they'd bothered to read the README which we were required to submit) that they'd have to change that because of the conflict which we ran into on implementation.
How were we supposed to know that the reference to the implementation from the book that they'd given us wasn't a typo? Especially when they'd described very clearly a different system which is also mentioned in the book, and which they'd talked about in class (and which in some ways is a better implementation)....