Date:	Tue, 9 Mar 2010 22:09:57 +0100
From:	Markus Rechberger <mrechberger@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>, Greg KH <greg@...ah.com>,
	Alan Stern <stern@...land.harvard.edu>
Subject: USBFS Memory allocation Bug

Hi,

I just stumbled around following issue:

[275835.163502] Pid: 14298, comm: mediasrv Not tainted 2.6.33 #7
[275835.163505] Call Trace:
[275835.163514]  [<ffffffff810df7a6>] __alloc_pages_nodemask+0x5b6/0x700
[275835.163520]  [<ffffffff8110c667>] alloc_pages_current+0x87/0xd0
[275835.163525]  [<ffffffff810dcf79>] __get_free_pages+0x9/0x50
[275835.163529]  [<ffffffff81114f2b>] __kmalloc+0x13b/0x1f0
[275835.163535]  [<ffffffff813a18ef>] proc_do_submiturb+0x2ff/0x9d0
[275835.163539]  [<ffffffff813a26b9>] usbdev_do_ioctl+0x6f9/0x14a0
[275835.163544]  [<ffffffff8111a78f>] ? try_get_mem_cgroup_from_mm+0x1f/0x70
[275835.163549]  [<ffffffff81047dbb>] ? finish_task_switch+0x4b/0xe0
[275835.163554]  [<ffffffff8111bb30>] ? __mem_cgroup_try_charge+0x50/0x210
[275835.163558]  [<ffffffff8111af5f>] ? __mem_cgroup_commit_charge+0x3f/0x90
[275835.163562]  [<ffffffff8111bec6>] ? mem_cgroup_charge_common+0x76/0x90
[275835.163566]  [<ffffffff810e3394>] ? lru_cache_add_lru+0x14/0x30
[275835.163570]  [<ffffffff813a3523>] usbdev_ioctl+0x43/0x80
[275835.163576]  [<ffffffff8112da75>] vfs_ioctl+0x35/0xc0
[275835.163580]  [<ffffffff8102e429>] ? default_spin_lock_flags+0x9/0x10
[275835.163584]  [<ffffffff8112dfe1>] do_vfs_ioctl+0x81/0x560
[275835.163589]  [<ffffffff8126f006>] ? __up_read+0x46/0xc0
[275835.163594]  [<ffffffff81078329>] ? up_read+0x9/0x10
[275835.163598]  [<ffffffff8112e542>] sys_ioctl+0x82/0xa0
[275835.163604]  [<ffffffff81009e42>] system_call_fastpath+0x16/0x1b
[275835.163606] Mem-Info:
[275835.163608] Node 0 DMA per-cpu:
[275835.163612] CPU    0: hi:    0, btch:   1 usd:   0
[275835.163614] CPU    1: hi:    0, btch:   1 usd:   0
[275835.163616] Node 0 DMA32 per-cpu:
[275835.163619] CPU    0: hi:  186, btch:  31 usd:   0
[275835.163621] CPU    1: hi:  186, btch:  31 usd: 147
[275835.163623] Node 0 Normal per-cpu:
[275835.163626] CPU    0: hi:  186, btch:  31 usd:   0
[275835.163629] CPU    1: hi:  186, btch:  31 usd:   0
[275835.163634] active_anon:105063 inactive_anon:70615 isolated_anon:0
[275835.163635]  active_file:194534 inactive_file:181212 isolated_file:0
[275835.163636]  unevictable:0 dirty:42 writeback:0 unstable:0
[275835.163637]  free:89728 slab_reclaimable:315969 slab_unreclaimable:15720
[275835.163639]  mapped:24777 shmem:40448 pagetables:6350 bounce:0
[275835.163641] Node 0 DMA free:15832kB min:28kB low:32kB high:40kB
active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15224kB
mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB
slab_reclaimable:0kB slab_unreclaimable:8kB kernel_stack:0kB
pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB
pages_scanned:0 all_unreclaimable? no
[275835.163652] lowmem_reserve[]: 0 2965 3975 3975
[275835.163657] Node 0 DMA32 free:294784kB min:6004kB low:7504kB
high:9004kB active_anon:274660kB inactive_anon:100000kB
active_file:559472kB inactive_file:547164kB unevictable:0kB
isolated(anon):0kB isolated(file):0kB present:3036832kB mlocked:0kB
dirty:76kB writeback:0kB mapped:53624kB shmem:106460kB
slab_reclaimable:1139344kB slab_unreclaimable:33336kB
kernel_stack:448kB pagetables:6408kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[275835.163669] lowmem_reserve[]: 0 0 1010 1010
[275835.163673] Node 0 Normal free:48296kB min:2044kB low:2552kB
high:3064kB active_anon:145592kB inactive_anon:182460kB
active_file:218664kB inactive_file:177684kB unevictable:0kB
isolated(anon):0kB isolated(file):0kB present:1034240kB mlocked:0kB
dirty:92kB writeback:0kB mapped:45484kB shmem:55332kB
slab_reclaimable:124532kB slab_unreclaimable:29536kB
kernel_stack:2224kB pagetables:18992kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[275835.163685] lowmem_reserve[]: 0 0 0 0
[275835.163689] Node 0 DMA: 2*4kB 0*8kB 1*16kB 0*32kB 1*64kB 1*128kB
1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15832kB
[275835.163701] Node 0 DMA32: 16122*4kB 21655*8kB 2766*16kB 272*32kB
52*64kB 4*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 294784kB
[275835.163712] Node 0 Normal: 3266*4kB 644*8kB 1721*16kB 47*32kB
7*64kB 3*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 48344kB
[275835.163724] 416200 total pagecache pages
[275835.163726] 0 pages in swap cache
[275835.163728] Swap cache stats: add 0, delete 0, find 0/0
[275835.163730] Free swap  = 0kB
[275835.163731] Total swap = 0kB
[275835.186808] 1048560 pages RAM
[275835.186811] 42285 pages reserved
[275835.186813] 387040 pages shared
[275835.186814] 588137 pages non-shared
[275835.491094] mediasrv: page allocation failure. order:6, mode:0x40d0
[275835.491100] Pid: 14298, comm: mediasrv Not tainted 2.6.33 #7
[275835.491102] Call Trace:
[275835.491112]  [<ffffffff810df7a6>] __alloc_pages_nodemask+0x5b6/0x700
[275835.491118]  [<ffffffff8110c667>] alloc_pages_current+0x87/0xd0
[275835.491122]  [<ffffffff810dcf79>] __get_free_pages+0x9/0x50
[275835.491127]  [<ffffffff81114f2b>] __kmalloc+0x13b/0x1f0
[275835.491132]  [<ffffffff813a18ef>] proc_do_submiturb+0x2ff/0x9d0
[275835.491137]  [<ffffffff813a26b9>] usbdev_do_ioctl+0x6f9/0x14a0
[275835.491142]  [<ffffffff8111a78f>] ? try_get_mem_cgroup_from_mm+0x1f/0x70
[275835.491147]  [<ffffffff81047dbb>] ? finish_task_switch+0x4b/0xe0
[275835.491151]  [<ffffffff8111bb30>] ? __mem_cgroup_try_charge+0x50/0x210
[275835.491155]  [<ffffffff8111af5f>] ? __mem_cgroup_commit_charge+0x3f/0x90
[275835.491159]  [<ffffffff8111bec6>] ? mem_cgroup_charge_common+0x76/0x90
[275835.491164]  [<ffffffff810e3394>] ? lru_cache_add_lru+0x14/0x30
[275835.491168]  [<ffffffff813a3523>] usbdev_ioctl+0x43/0x80
[275835.491173]  [<ffffffff8112da75>] vfs_ioctl+0x35/0xc0
[275835.491177]  [<ffffffff8102e429>] ? default_spin_lock_flags+0x9/0x10
[275835.491181]  [<ffffffff8112dfe1>] do_vfs_ioctl+0x81/0x560
[275835.491187]  [<ffffffff8126f006>] ? __up_read+0x46/0xc0
[275835.491192]  [<ffffffff81078329>] ? up_read+0x9/0x10
[275835.491196]  [<ffffffff8112e542>] sys_ioctl+0x82/0xa0
[275835.491201]  [<ffffffff81009e42>] system_call_fastpath+0x16/0x1b
[275835.491204] Mem-Info:
[275835.491205] Node 0 DMA per-cpu:
[275835.491209] CPU    0: hi:    0, btch:   1 usd:   0
[275835.491211] CPU    1: hi:    0, btch:   1 usd:   0
[275835.491213] Node 0 DMA32 per-cpu:
[275835.491216] CPU    0: hi:  186, btch:  31 usd:   0
[275835.491218] CPU    1: hi:  186, btch:  31 usd:   0
[275835.491220] Node 0 Normal per-cpu:
[275835.491223] CPU    0: hi:  186, btch:  31 usd:   0
[275835.491226] CPU    1: hi:  186, btch:  31 usd:   0
[275835.491231] active_anon:104889 inactive_anon:70863 isolated_anon:0
[275835.491232]  active_file:174421 inactive_file:174601 isolated_file:0
[275835.491234]  unevictable:0 dirty:42 writeback:0 unstable:0
[275835.491235]  free:158292 slab_reclaimable:274318 slab_unreclaimable:15652
[275835.491236]  mapped:23188 shmem:40448 pagetables:6350 bounce:0
[275835.491238] Node 0 DMA free:15832kB min:28kB low:32kB high:40kB
active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15224kB
mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB
slab_reclaimable:0kB slab_unreclaimable:8kB kernel_stack:0kB
pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB
pages_scanned:0 all_unreclaimable? no
[275835.491249] lowmem_reserve[]: 0 2965 3975 3975
[275835.491254] Node 0 DMA32 free:476700kB min:6004kB low:7504kB
high:9004kB active_anon:274156kB inactive_anon:100592kB
active_file:517364kB inactive_file:517540kB unevictable:0kB
isolated(anon):0kB isolated(file):0kB present:3036832kB mlocked:0kB
dirty:76kB writeback:0kB mapped:50368kB shmem:106460kB
slab_reclaimable:1029688kB slab_unreclaimable:33336kB
kernel_stack:448kB pagetables:6408kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[275835.491266] lowmem_reserve[]: 0 0 1010 1010
[275835.491271] Node 0 Normal free:140636kB min:2044kB low:2552kB
high:3064kB active_anon:145400kB inactive_anon:182860kB
active_file:180320kB inactive_file:180864kB unevictable:0kB
isolated(anon):0kB isolated(file):0kB present:1034240kB mlocked:0kB
dirty:92kB writeback:0kB mapped:42384kB shmem:55332kB
slab_reclaimable:67472kB slab_unreclaimable:29264kB
kernel_stack:2224kB pagetables:18992kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[275835.491283] lowmem_reserve[]: 0 0 0 0
[275835.491287] Node 0 DMA: 2*4kB 0*8kB 1*16kB 0*32kB 1*64kB 1*128kB
1*256kB 0*512kB 1*1024kB 1*2048kB 3*4096kB = 15832kB
[275835.491299] Node 0 DMA32: 20143*4kB 23426*8kB 10321*16kB 912*32kB
197*64kB 13*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =
476828kB
[275835.491310] Node 0 Normal: 6697*4kB 4644*8kB 2789*16kB 781*32kB
99*64kB 4*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 140660kB
[275835.491321] 389455 total pagecache pages
[275835.491323] 0 pages in swap cache
[275835.491325] Swap cache stats: add 0, delete 0, find 0/0
[275835.491327] Free swap  = 0kB
[275835.491329] Total swap = 0kB
[275835.514050] 1048560 pages RAM
[275835.514053] 42285 pages reserved
[275835.514055] 361109 pages shared
[275835.514056] 541768 pages non-shared


Markus
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