Message-ID: <alpine.DEB.2.00.1101071443280.23858@chino.kir.corp.google.com>
Date:	Fri, 7 Jan 2011 14:45:30 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Toralf Förster <toralf.foerster@....de>,
	Catalin Marinas <catalin.marinas@....com>
cc:	linux-kernel@...r.kernel.org
Subject: Re: mke2fs: page allocation failure w/ kernel 2.6.37

On Wed, 5 Jan 2011, Toralf Förster wrote:

> Hello,
> 
> I got this in /var/log/messages today (created a ext2 partition at an external USB drive, worked fine) :
> 

Yeah, this failure is from the kmemleak stack which simply means that 
debugging tool will be disabled rather than any disruption to the 
workflow.

I'm curious why kmemleak is masking with GFP_KERNEL and GFP_ATOMIC and not 
allowing users to pass __GFP_NOWARN to suppress this type of failure, 
especially since the stack trace is already emitted by kmemleak when it is 
stopped.  Catalin?

> ...
> 2011-01-05T19:43:19.464+01:00 n22 kernel: mke2fs: page allocation failure. order:0, mode:0x0
> 2011-01-05T19:43:19.464+01:00 n22 kernel: Pid: 26241, comm: mke2fs Not tainted 2.6.37 #1
> 2011-01-05T19:43:19.464+01:00 n22 kernel: Call Trace:
> 2011-01-05T19:43:19.464+01:00 n22 kernel: [<c1260b2b>] ? printk+0x18/0x1d
> 2011-01-05T19:43:19.464+01:00 n22 kernel: [<c108b3e4>] __alloc_pages_nodemask+0x514/0x570
> 2011-01-05T19:43:19.464+01:00 n22 kernel: [<c106099b>] ? __module_text_address+0xb/0x50
> 2011-01-05T19:43:19.464+01:00 n22 kernel: [<c10adf10>] cache_alloc_refill+0x2c0/0x4f0
> 2011-01-05T19:43:19.464+01:00 n22 kernel: [<c100676e>] ? print_context_stack+0x4e/0xb0
> 2011-01-05T19:43:19.464+01:00 n22 kernel: [<c10adc3c>] kmem_cache_alloc+0xbc/0xd0
> 2011-01-05T19:43:19.464+01:00 n22 kernel: [<c10b0083>] create_object+0x23/0x240
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10b01dd>] ? create_object+0x17d/0x240
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c102ff7f>] ? wake_up_process+0xf/0x20
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c1254307>] kmemleak_alloc+0x27/0x50
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10adc07>] kmem_cache_alloc+0x87/0xd0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c108732e>] mempool_alloc_slab+0xe/0x10
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c1087471>] mempool_alloc+0x41/0xf0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c1087471>] ? mempool_alloc+0x41/0xf0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<f90ab023>] alloc_tio+0x23/0x50 [dm_mod]
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<f90ac7b4>] __split_and_process_bio+0x244/0x6f0 [dm_mod]
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c106099b>] ? __module_text_address+0xb/0x50
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10609e8>] ? is_module_text_address+0x8/0x10
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c1049e67>] ? __kernel_text_address+0x47/0x70
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c100676e>] ? print_context_stack+0x4e/0xb0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10054f7>] ? dump_trace+0x87/0xe0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<f90acd16>] dm_request+0xb6/0x150 [dm_mod]
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c112cd0f>] generic_make_request+0x28f/0x380
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10adc07>] ? kmem_cache_alloc+0x87/0xd0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c112ce6a>] submit_bio+0x6a/0x100
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d8b5c>] ? bio_alloc_bioset+0x3c/0xb0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d3c33>] submit_bh+0xe3/0x120
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d67b9>] __block_write_full_page+0x229/0x3a0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d91e0>] ? blkdev_get_block+0x0/0xd0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d5fa0>] ? end_buffer_async_write+0x0/0x140
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d6a1a>] block_write_full_page_endio+0xea/0x100
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d5fa0>] ? end_buffer_async_write+0x0/0x140
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d91e0>] ? blkdev_get_block+0x0/0xd0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d6a42>] block_write_full_page+0x12/0x20
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d5fa0>] ? end_buffer_async_write+0x0/0x140
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10da0af>] blkdev_writepage+0xf/0x20
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c108b70b>] __writepage+0xb/0x30
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c108be58>] write_cache_pages+0x158/0x330
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c108b700>] ? __writepage+0x0/0x30
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10da0a0>] ? blkdev_writepage+0x0/0x20
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c108c04f>] generic_writepages+0x1f/0x30
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c108c077>] do_writepages+0x17/0x30
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c1085909>] __filemap_fdatawrite_range+0x59/0x70
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c108596f>] filemap_write_and_wait_range+0x4f/0x90
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d23cc>] vfs_fsync_range+0x4c/0x90
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d24c2>] vfs_fsync+0x22/0x30
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d24fa>] do_fsync+0x2a/0x50
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c10d254d>] sys_fsync+0xd/0x10
> 2011-01-05T19:43:19.466+01:00 n22 kernel: [<c1002e93>] sysenter_do_call+0x12/0x22
> 2011-01-05T19:43:19.466+01:00 n22 kernel: Mem-Info:
> 2011-01-05T19:43:19.466+01:00 n22 kernel: DMA per-cpu:
> 2011-01-05T19:43:19.466+01:00 n22 kernel: CPU    0: hi:    0, btch:   1 usd:   0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: CPU    1: hi:    0, btch:   1 usd:   0
> 2011-01-05T19:43:19.466+01:00 n22 kernel: Normal per-cpu:
> 2011-01-05T19:43:19.466+01:00 n22 kernel: CPU    0: hi:  186, btch:  31 usd: 115
> 2011-01-05T19:43:19.466+01:00 n22 kernel: CPU    1: hi:  186, btch:  31 usd:  30
> 2011-01-05T19:43:19.466+01:00 n22 kernel: HighMem per-cpu:
> 2011-01-05T19:43:19.467+01:00 n22 kernel: CPU    0: hi:  186, btch:  31 usd: 178
> 2011-01-05T19:43:19.467+01:00 n22 kernel: CPU    1: hi:  186, btch:  31 usd: 115
> 2011-01-05T19:43:19.467+01:00 n22 kernel: active_anon:144831 inactive_anon:60757 isolated_anon:0
> 2011-01-05T19:43:19.467+01:00 n22 kernel: active_file:57044 inactive_file:117883 isolated_file:0
> 2011-01-05T19:43:19.467+01:00 n22 kernel: unevictable:0 dirty:68283 writeback:14601 unstable:0
> 2011-01-05T19:43:19.467+01:00 n22 kernel: free:45254 slab_reclaimable:10486 slab_unreclaimable:49038
> 2011-01-05T19:43:19.467+01:00 n22 kernel: mapped:30904 shmem:29488 pagetables:1340 bounce:0
> 2011-01-05T19:43:19.467+01:00 n22 kernel: DMA free:3500kB min:64kB low:80kB high:96kB active_anon:596kB inactive_anon:768kB active_file:132kB 
> inactive_file:8024kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15800kB mlocked:0kB dirty:0kB writeback:0kB mapped:4kB shmem:0kB 
> slab_reclaimable:604kB slab_unreclaimable:2284kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 
> all_unreclaimable? no
> 2011-01-05T19:43:19.467+01:00 n22 kernel: lowmem_reserve[]: 0 865 1911 1911
> 2011-01-05T19:43:19.467+01:00 n22 kernel: Normal free:2756kB min:3728kB low:4660kB high:5592kB active_anon:73792kB inactive_anon:73856kB 
> active_file:131732kB inactive_file:339856kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:885944kB mlocked:0kB dirty:273092kB 
> writeback:58404kB mapped:12580kB shmem:43028kB slab_reclaimable:41340kB slab_unreclaimable:193868kB kernel_stack:2504kB pagetables:5360kB 
> unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1296 all_unreclaimable? no
> 2011-01-05T19:43:19.467+01:00 n22 kernel: lowmem_reserve[]: 0 0 8369 8369
> 2011-01-05T19:43:19.467+01:00 n22 kernel: HighMem free:174760kB min:512kB low:1636kB high:2764kB active_anon:504936kB inactive_anon:168404kB 
> active_file:96312kB inactive_file:123652kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:1071256kB mlocked:0kB dirty:40kB writeback:0kB 
> mapped:111032kB shmem:74924kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB 
> pages_scanned:0 all_unreclaimable? no
> 2011-01-05T19:43:19.467+01:00 n22 kernel: lowmem_reserve[]: 0 0 0 0
> 2011-01-05T19:43:19.467+01:00 n22 kernel: DMA: 1*4kB 1*8kB 0*16kB 1*32kB 0*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3500kB
> 2011-01-05T19:43:19.467+01:00 n22 kernel: Normal: 1*4kB 0*8kB 0*16kB 0*32kB 1*64kB 1*128kB 0*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 2756kB
> 2011-01-05T19:43:19.467+01:00 n22 kernel: HighMem: 16840*4kB 9685*8kB 1730*16kB 64*32kB 1*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 
> 0*4096kB = 174760kB
> 2011-01-05T19:43:19.467+01:00 n22 kernel: 204435 total pagecache pages
> 2011-01-05T19:43:19.467+01:00 n22 kernel: 0 pages in swap cache
> 2011-01-05T19:43:19.467+01:00 n22 kernel: Swap cache stats: add 0, delete 0, find 0/0
> 2011-01-05T19:43:19.467+01:00 n22 kernel: Free swap  = 2003364kB
> 2011-01-05T19:43:19.468+01:00 n22 kernel: Total swap = 2003364kB
> 2011-01-05T19:43:19.468+01:00 n22 kernel: 498160 pages RAM
> 2011-01-05T19:43:19.468+01:00 n22 kernel: 270850 pages HighMem
> 2011-01-05T19:43:19.468+01:00 n22 kernel: 6064 pages reserved
> 2011-01-05T19:43:19.468+01:00 n22 kernel: 296131 pages shared
> 2011-01-05T19:43:19.468+01:00 n22 kernel: 275823 pages non-shared
> 2011-01-05T19:43:19.468+01:00 n22 kernel: kmemleak: Cannot allocate a kmemleak_object structure
> 2011-01-05T19:43:19.468+01:00 n22 kernel: Pid: 26241, comm: mke2fs Not tainted 2.6.37 #1
> 2011-01-05T19:43:19.468+01:00 n22 kernel: Call Trace:
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c1260b2b>] ? printk+0x18/0x1d
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10b0288>] create_object+0x228/0x240
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10b01dd>] ? create_object+0x17d/0x240
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c102ff7f>] ? wake_up_process+0xf/0x20
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c1254307>] kmemleak_alloc+0x27/0x50
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10adc07>] kmem_cache_alloc+0x87/0xd0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c108732e>] mempool_alloc_slab+0xe/0x10
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c1087471>] mempool_alloc+0x41/0xf0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c1087471>] ? mempool_alloc+0x41/0xf0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<f90ab023>] alloc_tio+0x23/0x50 [dm_mod]
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<f90ac7b4>] __split_and_process_bio+0x244/0x6f0 [dm_mod]
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c106099b>] ? __module_text_address+0xb/0x50
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10609e8>] ? is_module_text_address+0x8/0x10
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c1049e67>] ? __kernel_text_address+0x47/0x70
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c100676e>] ? print_context_stack+0x4e/0xb0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10054f7>] ? dump_trace+0x87/0xe0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<f90acd16>] dm_request+0xb6/0x150 [dm_mod]
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c112cd0f>] generic_make_request+0x28f/0x380
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10adc07>] ? kmem_cache_alloc+0x87/0xd0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c112ce6a>] submit_bio+0x6a/0x100
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d8b5c>] ? bio_alloc_bioset+0x3c/0xb0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d3c33>] submit_bh+0xe3/0x120
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d67b9>] __block_write_full_page+0x229/0x3a0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d91e0>] ? blkdev_get_block+0x0/0xd0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d5fa0>] ? end_buffer_async_write+0x0/0x140
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d6a1a>] block_write_full_page_endio+0xea/0x100
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d5fa0>] ? end_buffer_async_write+0x0/0x140
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d91e0>] ? blkdev_get_block+0x0/0xd0
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d6a42>] block_write_full_page+0x12/0x20
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d5fa0>] ? end_buffer_async_write+0x0/0x140
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10da0af>] blkdev_writepage+0xf/0x20
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c108b70b>] __writepage+0xb/0x30
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c108be58>] write_cache_pages+0x158/0x330
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c108b700>] ? __writepage+0x0/0x30
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10da0a0>] ? blkdev_writepage+0x0/0x20
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c108c04f>] generic_writepages+0x1f/0x30
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c108c077>] do_writepages+0x17/0x30
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c1085909>] __filemap_fdatawrite_range+0x59/0x70
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c108596f>] filemap_write_and_wait_range+0x4f/0x90
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d23cc>] vfs_fsync_range+0x4c/0x90
> 2011-01-05T19:43:19.468+01:00 n22 kernel: [<c10d24c2>] vfs_fsync+0x22/0x30
> 2011-01-05T19:43:19.469+01:00 n22 kernel: [<c10d24fa>] do_fsync+0x2a/0x50
> 2011-01-05T19:43:19.469+01:00 n22 kernel: [<c10d254d>] sys_fsync+0xd/0x10
> 2011-01-05T19:43:19.469+01:00 n22 kernel: [<c1002e93>] sysenter_do_call+0x12/0x22
> 2011-01-05T19:43:19.469+01:00 n22 kernel: kmemleak: Kernel memory leak detector disabled
> 2011-01-05T19:43:19.469+01:00 n22 kernel: kmemleak: Automatic memory scanning thread ended

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