<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [GM45] igt@gem_mmap_gtt@basic-small-bo-tiledx - fail - Failed assertion: memcmp(ptr , tiled_pattern, PAGE_SIZE) == 0 (edit)" href="https://bugs.freedesktop.org/show_bug.cgi?id=106848#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [GM45] igt@gem_mmap_gtt@basic-small-bo-tiledx - fail - Failed assertion: memcmp(ptr , tiled_pattern, PAGE_SIZE) == 0 (edit)" href="https://bugs.freedesktop.org/show_bug.cgi?id=106848">bug 106848</a> from <a class="email" href="mailto:promarbler14@gmail.com" title="Adric Blake <promarbler14@gmail.com>"> Adric Blake</a> <pre>I have bisected the kernel, which revealed commit e6cbd7f2efb433d717af72aa8510a9db6f7a7e05 to be the first bad commit. commit e6cbd7f2efb433d717af72aa8510a9db6f7a7e05 (HEAD, refs/bisect/bad) Author: Mel Gorman <<a href="mailto:mgorman@techsingularity.net">mgorman@techsingularity.net</a>> Date: Thu Jul 28 15:46:50 2016 -0700 mm, page_alloc: remove fair zone allocation policy The fair zone allocation policy interleaves allocation requests between zones to avoid an age inversion problem whereby new pages are reclaimed to balance a zone. Reclaim is now node-based so this should no longer be an issue and the fair zone allocation policy is not free. This patch removes it. Link: <a href="http://lkml.kernel.org/r/1467970510-21195-30-git-send-email-mgorman@techsingularity.net">http://lkml.kernel.org/r/1467970510-21195-30-git-send-email-mgorman@techsingularity.net</a> Signed-off-by: Mel Gorman <<a href="mailto:mgorman@techsingularity.net">mgorman@techsingularity.net</a>> Acked-by: Vlastimil Babka <<a href="mailto:vbabka@suse.cz">vbabka@suse.cz</a>> Cc: Hillf Danton <<a href="mailto:hillf.zj@alibaba-inc.com">hillf.zj@alibaba-inc.com</a>> Acked-by: Johannes Weiner <<a href="mailto:hannes@cmpxchg.org">hannes@cmpxchg.org</a>> Cc: Joonsoo Kim <<a href="mailto:iamjoonsoo.kim@lge.com">iamjoonsoo.kim@lge.com</a>> Cc: Michal Hocko <<a href="mailto:mhocko@kernel.org">mhocko@kernel.org</a>> Cc: Minchan Kim <<a href="mailto:minchan@kernel.org">minchan@kernel.org</a>> Cc: Rik van Riel <<a href="mailto:riel@surriel.com">riel@surriel.com</a>> Signed-off-by: Andrew Morton <<a href="mailto:akpm@linux-foundation.org">akpm@linux-foundation.org</a>> Signed-off-by: Linus Torvalds <<a href="mailto:torvalds@linux-foundation.org">torvalds@linux-foundation.org</a>> git bisect log: git bisect start # good: [523d939ef98fd712632d93a5a2b588e477a7565e] Linux 4.7 git bisect good 523d939ef98fd712632d93a5a2b588e477a7565e # bad: [c8d2bc9bc39ebea8437fd974fdbc21847bb897a3] Linux 4.8 git bisect bad c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 # skip: [e61c10e468a42512f5fad74c00b62af5cc19f65f] sh: add device tree source for J2 FPGA on Mimas v2 board git bisect skip e61c10e468a42512f5fad74c00b62af5cc19f65f # good: [6d51c813b172b4374fe7a6b732b6666f8d77bfea] drm/amdgpu: update golden setting of stoney git bisect good 6d51c813b172b4374fe7a6b732b6666f8d77bfea # bad: [e7b4f2d8edbbc58c8e2c3134ff884611433ba3db] Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs git bisect bad e7b4f2d8edbbc58c8e2c3134ff884611433ba3db # good: [0e6acf0204da5b8705722a5f6806a4f55ed379d6] Merge tag 'xfs-for-linus-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs git bisect good 0e6acf0204da5b8705722a5f6806a4f55ed379d6 # good: [da54bb13c02660544c286e7922b2ec660e5b1e77] Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue git bisect good da54bb13c02660544c286e7922b2ec660e5b1e77 # good: [6a492b0f23d28e1f946cdf08e54617484400dafb] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi git bisect good 6a492b0f23d28e1f946cdf08e54617484400dafb # bad: [c3486f5376696034d0fcbef8ba70c70cfcb26f51] mm, compaction: simplify contended compaction handling git bisect bad c3486f5376696034d0fcbef8ba70c70cfcb26f51 # good: [92effdf8b8b214165d5437f02b0ccbe80ba244cf] [media] doc-rst: Remove deprecated API.html document git bisect good 92effdf8b8b214165d5437f02b0ccbe80ba244cf # good: [818e607b57c94ade9824dad63a96c2ea6b21baf3] Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random git bisect good 818e607b57c94ade9824dad63a96c2ea6b21baf3 # good: [c4a25635b60d08853a3e4eaae3ab34419a36cfa2] mm: move vmscan writes and file write accounting to the node git bisect good c4a25635b60d08853a3e4eaae3ab34419a36cfa2 # bad: [35b3445e97352732f0d64a7e629f629b1d81827e] mm/zsmalloc: add __init,__exit attribute git bisect bad 35b3445e97352732f0d64a7e629f629b1d81827e # bad: [68eb0731c4ce1d64aa59b244abae4e72300719b6] mm, pagevec: release/reacquire lru_lock on pgdat change git bisect bad 68eb0731c4ce1d64aa59b244abae4e72300719b6 # good: [e5146b12e2d02af04608301c958d95b2fc47a0f9] mm, vmscan: add classzone information to tracepoints git bisect good e5146b12e2d02af04608301c958d95b2fc47a0f9 # bad: [7cc30fcfd2a894589d832a192cac3dc5cd302bb8] mm: vmstat: account per-zone stalls and pages skipped during reclaim git bisect bad 7cc30fcfd2a894589d832a192cac3dc5cd302bb8 # bad: [3b8c0be43cb844b3cd26fac00e7663a1201176fd] mm: page_alloc: cache the last node whose dirty limit is reached git bisect bad 3b8c0be43cb844b3cd26fac00e7663a1201176fd # bad: [e6cbd7f2efb433d717af72aa8510a9db6f7a7e05] mm, page_alloc: remove fair zone allocation policy git bisect bad e6cbd7f2efb433d717af72aa8510a9db6f7a7e05 # first bad commit: [e6cbd7f2efb433d717af72aa8510a9db6f7a7e05] mm, page_alloc: remove fair zone allocation policy</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>