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Date: Thu, 29 Jul 2010 19:47:13 +1000 From: dave b <db.pub.mail@...il.com> To: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> Cc: David Rientjes <rientjes@...gle.com>, Hugh Dickins <hughd@...gle.com>, linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: Re: PROBLEM: oom killer and swap weirdness on 2.6.3* kernels On 28 July 2010 17:14, dave b <db.pub.mail@...il.com> wrote: > On 28 July 2010 15:06, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote: >>> On 27 July 2010 21:14, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote: >>> >> On 27 July 2010 18:09, dave b <db.pub.mail@...il.com> wrote: >>> >> > On 27 July 2010 16:09, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote: >>> >> >>> > Do you mean the issue will be gone if disabling intel graphics? >>> >> >>> It may be a general issue or it could just be specific :) >>> >> > >>> >> > I will try with the latest ubuntu and report how that goes (that will >>> >> > be using fairly new xorg etc.) it is likely to be hidden issue just >>> >> > with the intel graphics driver. However, my concern is that it isn't - >>> >> > and it is about how shared graphics memory is handled :) >>> >> >>> >> >>> >> Ok my desktop still stalled and no oom killer was invoked when I added >>> >> swap to a live-cd of 10.04 amd64. >>> >> >>> >> *Without* *swap* *on* - the oom killer was invoked - here is a copy of it. >>> > >>> > This stack seems similar following bug. can you please try to disable intel graphics >>> > driver? >>> > >>> > https://bugzilla.kernel.org/show_bug.cgi?id=14933 >>> >>> Ok I am not sure how to do that :) >>> I could revert the patch and see if it 'fixes' this :) >> >> Oops, no, revert is not good action. the patch is correct. >> probably my explanation was not clear. sorry. >> >> I did hope to disable 'driver' (i.e. using vga), not disable the patch. > > Oh you mean in xorg, I will also blacklist the module. Sure that patch > might not it but in 2.6.26 the problem isn't there :) Ok I re-tested with 2.6.26 and 2.6.34.1 So I will describe what happens below: 2.6.26 - with xorg running "Given I have a test file called a.out And I can see Xorg And I am using 2.6.26 And I have swap on When I run it I run a.out Then I see the system freeze up slightly And the hard drive churns( and the cpu is doing something as the large fan kicks) And after a while the system unfreezes" 2.6.26 - from single mode - before xorg starts and i915 is *not* loaded. "Given I have a test file called a.out And I cannot see Xorg And I am using 2.6.26 And I have swap on When I run it I run a.out Then I see the system freeze up And the system fan doesn't spin any faster And the system just sits idle" 2.6.34.1 With and without xorg - WITH spam on the same behaviour as in the 2.6.26 kernel appears (when xorg is not loaded). OOM attached from the 2.6.26 kernel when I used magic keys to invoke the oom killer :) (this was on the 2.6.26 kernel - before i915 had loaded and in single mode). [ 280.323899] SysRq : Manual OOM execution [ 280.324009] events/0 invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0 [ 280.324056] Pid: 9, comm: events/0 Not tainted 2.6.26-2-amd64 #1 [ 280.324098] [ 280.324099] Call Trace: [ 280.324200] [<ffffffff8027388c>] oom_kill_process+0x57/0x1dc [ 280.324247] [<ffffffff8023b49d>] __capable+0x9/0x1c [ 280.324290] [<ffffffff80273bb7>] badness+0x188/0x1c7 [ 280.324341] [<ffffffff80273deb>] out_of_memory+0x1f5/0x28e [ 280.324396] [<ffffffff8037824c>] moom_callback+0x0/0x1a [ 280.324449] [<ffffffff80243070>] run_workqueue+0x82/0x111 [ 280.324497] [<ffffffff8024393d>] worker_thread+0xd5/0xe0 [ 280.324543] [<ffffffff80246171>] autoremove_wake_function+0x0/0x2e [ 280.324596] [<ffffffff80243868>] worker_thread+0x0/0xe0 [ 280.324637] [<ffffffff8024604b>] kthread+0x47/0x74 [ 280.324678] [<ffffffff802300ed>] schedule_tail+0x27/0x5c [ 280.326721] [<ffffffff8020cf38>] child_rip+0xa/0x12 [ 280.326788] [<ffffffff80246004>] kthread+0x0/0x74 [ 280.326831] [<ffffffff8020cf2e>] child_rip+0x0/0x12 [ 280.326877] [ 280.326911] Mem-info: [ 280.326948] Node 0 DMA per-cpu: [ 280.327010] CPU 0: hi: 0, btch: 1 usd: 0 [ 280.327050] CPU 1: hi: 0, btch: 1 usd: 0 [ 280.327090] Node 0 DMA32 per-cpu: [ 280.327151] CPU 0: hi: 186, btch: 31 usd: 139 [ 280.327192] CPU 1: hi: 186, btch: 31 usd: 175 [ 280.327234] Active:31 inactive:491089 dirty:0 writeback:23480 unstable:0 [ 280.327235] free:3005 slab:7514 mapped:1 pagetables:1063 bounce:0 [ 280.327318] Node 0 DMA free:7880kB min:28kB low:32kB high:40kB active:0kB inactive:3620kB present:10788kB pages_scanned:16863 all_unreclaimable? yes [ 280.327404] lowmem_reserve[]: 0 1971 1971 1971 [ 280.327553] Node 0 DMA32 free:4140kB min:5664kB low:7080kB high:8496kB active:124kB inactive:1960736kB present:2019172kB pages_scanned:782860 all_unreclaimable? no [ 280.327651] lowmem_reserve[]: 0 0 0 0 [ 280.327686] Node 0 DMA: 4*4kB 3*8kB 2*16kB 4*32kB 2*64kB 1*128kB 3*256kB 3*512kB 1*1024kB 0*2048kB 1*4096kB = 7880kB [ 280.327686] Node 0 DMA32: 477*4kB 7*8kB 0*16kB 2*32kB 3*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 4140kB [ 280.327686] 491299 total pagecache pages [ 280.327686] Swap cache: add 495985, delete 4762, find 0/1 [ 280.327686] Free swap = 3963444kB [ 280.327686] Total swap = 5947384kB [ 280.335694] 515887 pages of RAM [ 280.335694] 8379 reserved pages [ 280.335694] 83 pages shared [ 280.335694] 491223 pages swap cached [ 280.335694] Out of memory: kill process 2842 (a.out) score 494723 or a child [ 280.335694] Killed process 2842 (a.out) [ 283.864479] SysRq : Manual OOM execution And this is from 2.6.26 when xorg is running: [ 325.828622] [drm] Initialized i915 1.6.0 20060119 on minor 0 [ 575.537309] hald invoked oom-killer: gfp_mask=0x1201d2, order=0, oomkilladj=0 [ 575.537319] Pid: 3183, comm: hald Not tainted 2.6.26-2-amd64 #1 [ 575.537323] [ 575.537324] Call Trace: [ 575.537362] [<ffffffff8027388c>] oom_kill_process+0x57/0x1dc [ 575.537374] [<ffffffff8023b49d>] __capable+0x9/0x1c [ 575.537383] [<ffffffff80273bb7>] badness+0x188/0x1c7 [ 575.537406] [<ffffffff80273deb>] out_of_memory+0x1f5/0x28e [ 575.537444] [<ffffffff80276b3c>] __alloc_pages_internal+0x31d/0x3bf [ 575.537494] [<ffffffff802787f2>] __do_page_cache_readahead+0x79/0x183 [ 575.537531] [<ffffffff802730a1>] filemap_fault+0x15d/0x33c [ 575.537570] [<ffffffff8027e620>] __do_fault+0x50/0x3e6 [ 575.537623] [<ffffffff80281983>] handle_mm_fault+0x3f4/0x867 [ 575.537654] [<ffffffff80248b56>] hrtimer_start+0x112/0x134 [ 575.537664] [<ffffffff80229020>] hrtick_start_fair+0xfb/0x144 [ 575.537700] [<ffffffff80221fbc>] do_page_fault+0x5d8/0x9c8 [ 575.537715] [<ffffffff8042916f>] thread_return+0x6b/0xac [ 575.537755] [<ffffffff8042a869>] error_exit+0x0/0x60 [ 575.537815] [ 575.537818] Mem-info: [ 575.537821] Node 0 DMA per-cpu: [ 575.537826] CPU 0: hi: 0, btch: 1 usd: 0 [ 575.537830] CPU 1: hi: 0, btch: 1 usd: 0 [ 575.537833] Node 0 DMA32 per-cpu: [ 575.537837] CPU 0: hi: 186, btch: 31 usd: 171 [ 575.537841] CPU 1: hi: 186, btch: 31 usd: 134 [ 575.537847] Active:227811 inactive:228679 dirty:0 writeback:0 unstable:0 [ 575.537849] free:3352 slab:4828 mapped:620 pagetables:7858 bounce:0 [ 575.537853] Node 0 DMA free:7900kB min:28kB low:32kB high:40kB active:1884kB inactive:1732kB present:10788kB pages_scanned:17985 all_unreclaimable? no [ 575.537861] lowmem_reserve[]: 0 1971 1971 1971 [ 575.537868] Node 0 DMA32 free:5508kB min:5664kB low:7080kB high:8496kB active:909360kB inactive:912984kB present:2019172kB pages_scanned:4362542 all_unreclaimable? yes [ 575.537876] lowmem_reserve[]: 0 0 0 0 [ 575.537883] Node 0 DMA: 15*4kB 14*8kB 9*16kB 3*32kB 5*64kB 2*128kB 3*256kB 2*512kB 1*1024kB 0*2048kB 1*4096kB = 7900kB [ 575.537902] Node 0 DMA32: 113*4kB 34*8kB 25*16kB 11*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 5508kB [ 575.537921] 697 total pagecache pages [ 575.537925] Swap cache: add 1990647, delete 1990647, find 16681/17672 [ 575.537928] Free swap = 0kB [ 575.537931] Total swap = 5947384kB [ 575.551393] 515887 pages of RAM [ 575.551400] 8380 reserved pages [ 575.551402] 40837 pages shared [ 575.551405] 0 pages swap cached [ 575.551410] Out of memory: kill process 3956 (a.out) score 1888511 or a child [ 575.551439] Killed process 3956 (a.out) [ 575.623722] hald invoked oom-killer: gfp_mask=0x1201d2, order=0, oomkilladj=0 [ 575.623731] Pid: 3183, comm: hald Not tainted 2.6.26-2-amd64 #1 [ 575.623735] [ 575.623736] Call Trace: [ 575.623772] [<ffffffff8027388c>] oom_kill_process+0x57/0x1dc [ 575.623783] [<ffffffff8023b49d>] __capable+0x9/0x1c [ 575.623791] [<ffffffff80273bb7>] badness+0x188/0x1c7 [ 575.623809] [<ffffffff80273deb>] out_of_memory+0x1f5/0x28e [ 575.623846] [<ffffffff80276b3c>] __alloc_pages_internal+0x31d/0x3bf [ 575.623894] [<ffffffff802787f2>] __do_page_cache_readahead+0x79/0x183 [ 575.623930] [<ffffffff802730a1>] filemap_fault+0x15d/0x33c [ 575.623966] [<ffffffff8027e620>] __do_fault+0x50/0x3e6 [ 575.624017] [<ffffffff80281983>] handle_mm_fault+0x3f4/0x867 [ 575.624046] [<ffffffff80248b56>] hrtimer_start+0x112/0x134 [ 575.624055] [<ffffffff80229020>] hrtick_start_fair+0xfb/0x144 [ 575.624088] [<ffffffff80221fbc>] do_page_fault+0x5d8/0x9c8 [ 575.624101] [<ffffffff8042916f>] thread_return+0x6b/0xac [ 575.624139] [<ffffffff8042a869>] error_exit+0x0/0x60 [ 575.624198] [ 575.624201] Mem-info: [ 575.624204] Node 0 DMA per-cpu: [ 575.624208] CPU 0: hi: 0, btch: 1 usd: 0 [ 575.624212] CPU 1: hi: 0, btch: 1 usd: 0 [ 575.624215] Node 0 DMA32 per-cpu: [ 575.624219] CPU 0: hi: 186, btch: 31 usd: 153 [ 575.624222] CPU 1: hi: 186, btch: 31 usd: 134 [ 575.624228] Active:228889 inactive:227627 dirty:0 writeback:310 unstable:0 [ 575.624230] free:3352 slab:4828 mapped:620 pagetables:7858 bounce:0 [ 575.624234] Node 0 DMA free:7900kB min:28kB low:32kB high:40kB active:1880kB inactive:1720kB present:10788kB pages_scanned:18498 all_unreclaimable? yes [ 575.624241] lowmem_reserve[]: 0 1971 1971 1971 [ 575.624248] Node 0 DMA32 free:5508kB min:5664kB low:7080kB high:8496kB active:913676kB inactive:908788kB present:2019172kB pages_scanned:4479719 all_unreclaimable? yes [ 575.624256] lowmem_reserve[]: 0 0 0 0 [ 575.624262] Node 0 DMA: 15*4kB 14*8kB 9*16kB 3*32kB 5*64kB 2*128kB 3*256kB 2*512kB 1*1024kB 0*2048kB 1*4096kB = 7900kB [ 575.624280] Node 0 DMA32: 113*4kB 34*8kB 25*16kB 11*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 5508kB [ 575.624297] 1007 total pagecache pages [ 575.624301] Swap cache: add 1990950, delete 1990647, find 16681/17673 [ 575.624304] Free swap = 6660kB [ 575.624306] Total swap = 5947384kB [ 575.636736] 515887 pages of RAM [ 575.636736] 8380 reserved pages [ 575.636736] 40742 pages shared [ 575.636736] 303 pages swap cached [ 575.636736] Out of memory: kill process 3500 (x-session-manag) score 410763 or a child [ 575.636736] Killed process 3568 (seahorse-agent) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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