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Message-Id: <201010272112.59520.toralf.foerster@gmx.de> Date: Wed, 27 Oct 2010 21:12:59 +0200 From: Toralf Förster <toralf.foerster@....de> To: Catalin Marinas <catalin.marinas@....com> Cc: linux-kernel@...r.kernel.org, "Luis R. Rodriguez" <lrodriguez@...eros.com> Subject: kmemleak disabled itself in 2.6.36 I'm unsure whether this happens due to a $> sudo su -c "echo clear > /sys/kernel/debug/kmemleak" or while regular scanning, but anyway seems not to be normal, or ? 2010-10-27T20:42:21.697+02:00 n22 kernel: flush-254:0: page allocation failure. order:0, mode:0x0 2010-10-27T20:42:21.697+02:00 n22 kernel: Pid: 15475, comm: flush-254:0 Not tainted 2.6.36 #2 2010-10-27T20:42:21.697+02:00 n22 kernel: Call Trace: 2010-10-27T20:42:21.697+02:00 n22 kernel: [<c124a580>] ? printk+0x18/0x20 2010-10-27T20:42:21.697+02:00 n22 kernel: [<c107edd4>] __alloc_pages_nodemask+0x514/0x570 2010-10-27T20:42:21.697+02:00 n22 kernel: [<c100653e>] ? print_context_stack+0x4e/0xb0 2010-10-27T20:42:21.697+02:00 n22 kernel: [<c109fd34>] cache_alloc_refill+0x2b4/0x4e0 2010-10-27T20:42:21.697+02:00 n22 kernel: [<c109fa6c>] kmem_cache_alloc+0xbc/0xd0 2010-10-27T20:42:21.697+02:00 n22 kernel: [<c10a3853>] create_object+0x23/0x240 2010-10-27T20:42:21.697+02:00 n22 kernel: [<c123e297>] kmemleak_alloc+0x27/0x50 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c109fa37>] kmem_cache_alloc+0x87/0xd0 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c107ae9e>] mempool_alloc_slab+0xe/0x10 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c107afe1>] mempool_alloc+0x41/0xf0 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c109fa37>] ? kmem_cache_alloc+0x87/0xd0 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10cbbc8>] bio_alloc_bioset+0x28/0xb0 2010-10-27T20:42:21.698+02:00 n22 kernel: [<f9bca09b>] clone_bio+0x3b/0x90 [dm_mod] 2010-10-27T20:42:21.698+02:00 n22 kernel: [<f9bcb985>] __split_and_process_bio+0x1f5/0x710 [dm_mod] 2010-10-27T20:42:21.698+02:00 n22 kernel: [<f9bcbf5c>] dm_request+0xbc/0x1c0 [dm_mod] 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c111e15e>] generic_make_request+0x18e/0x340 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c1080d52>] ? pagevec_lookup_tag+0x22/0x30 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c107f76a>] ? write_cache_pages+0xaa/0x330 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c111e37c>] submit_bio+0x6c/0x100 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c1104329>] ? ext2_get_inode+0xc9/0x140 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10cfab0>] ? mpage_end_io_read+0x0/0x70 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10cf32c>] mpage_bio_submit+0x1c/0x30 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10cfb6d>] mpage_writepages+0x4d/0x70 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c1104ac0>] ? ext2_get_block+0x0/0x850 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c110402d>] ext2_writepages+0xd/0x10 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c107fa37>] do_writepages+0x17/0x30 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10c1320>] writeback_single_inode+0x80/0x240 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10c1904>] writeback_sb_inodes+0xb4/0x160 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10c1e84>] writeback_inodes_wb+0x84/0x120 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10c20eb>] wb_writeback+0x1cb/0x210 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c124b4ee>] ? schedule_timeout+0x10e/0x1e0 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10c2197>] wb_do_writeback+0x67/0x140 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10c22e1>] bdi_writeback_thread+0x71/0x130 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c10c2270>] ? bdi_writeback_thread+0x0/0x130 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c104b0f4>] kthread+0x74/0x80 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c104b080>] ? kthread+0x0/0x80 2010-10-27T20:42:21.698+02:00 n22 kernel: [<c100327e>] kernel_thread_helper+0x6/0x18 2010-10-27T20:42:21.698+02:00 n22 kernel: Mem-Info: 2010-10-27T20:42:21.698+02:00 n22 kernel: DMA per-cpu: 2010-10-27T20:42:21.698+02:00 n22 kernel: CPU 0: hi: 0, btch: 1 usd: 0 2010-10-27T20:42:21.698+02:00 n22 kernel: CPU 1: hi: 0, btch: 1 usd: 0 2010-10-27T20:42:21.698+02:00 n22 kernel: Normal per-cpu: 2010-10-27T20:42:21.698+02:00 n22 kernel: CPU 0: hi: 186, btch: 31 usd: 44 2010-10-27T20:42:21.698+02:00 n22 kernel: CPU 1: hi: 186, btch: 31 usd: 30 2010-10-27T20:42:21.698+02:00 n22 kernel: HighMem per-cpu: 2010-10-27T20:42:21.698+02:00 n22 kernel: CPU 0: hi: 186, btch: 31 usd: 94 2010-10-27T20:42:21.698+02:00 n22 kernel: CPU 1: hi: 186, btch: 31 usd: 0 2010-10-27T20:42:21.698+02:00 n22 kernel: active_anon:106111 inactive_anon:52216 isolated_anon:0 2010-10-27T20:42:21.698+02:00 n22 kernel: active_file:73442 inactive_file:179093 isolated_file:0 2010-10-27T20:42:21.698+02:00 n22 kernel: unevictable:0 dirty:52878 writeback:7857 unstable:0 2010-10-27T20:42:21.698+02:00 n22 kernel: free:4401 slab_reclaimable:34207 slab_unreclaimable:37304 2010-10-27T20:42:21.698+02:00 n22 kernel: mapped:16039 shmem:25688 pagetables:1201 bounce:0 2010-10-27T20:42:21.698+02:00 n22 kernel: DMA free:3492kB min:64kB low:80kB high:96kB active_anon:0kB inactive_anon:4kB active_file:1184kB inactive_file:6632kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15860kB mlocked:0kB dirty:988kB writeback:1932kB mapped:0kB shmem:4kB slab_reclaimable:2224kB slab_unreclaimable:2400kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no 2010-10-27T20:42:21.698+02:00 n22 kernel: lowmem_reserve[]: 0 865 1911 1911 2010-10-27T20:42:21.698+02:00 n22 kernel: Normal free:2676kB min:3728kB low:4660kB high:5592kB active_anon:74128kB inactive_anon:86076kB active_file:208592kB inactive_file:208780kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:885944kB mlocked:0kB dirty:47320kB writeback:10400kB mapped:1952kB shmem:6288kB slab_reclaimable:134604kB slab_unreclaimable:146816kB kernel_stack:2184kB pagetables:4804kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no 2010-10-27T20:42:21.698+02:00 n22 kernel: lowmem_reserve[]: 0 0 8369 8369 2010-10-27T20:42:21.698+02:00 n22 kernel: HighMem free:11436kB min:512kB low:1636kB high:2764kB active_anon:350316kB inactive_anon:122784kB active_file:83992kB inactive_file:500960kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:1071256kB mlocked:0kB dirty:163204kB writeback:19096kB mapped:62204kB shmem:96460kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no 2010-10-27T20:42:21.699+02:00 n22 kernel: lowmem_reserve[]: 0 0 0 0 2010-10-27T20:42:21.699+02:00 n22 kernel: DMA: 0*4kB 0*8kB 1*16kB 1*32kB 0*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3504kB 2010-10-27T20:42:21.699+02:00 n22 kernel: Normal: 29*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 1*2048kB 0*4096kB = 2676kB 2010-10-27T20:42:21.699+02:00 n22 kernel: HighMem: 1781*4kB 255*8kB 56*16kB 33*32kB 3*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 11436kB 2010-10-27T20:42:21.699+02:00 n22 kernel: 278252 total pagecache pages 2010-10-27T20:42:21.699+02:00 n22 kernel: 0 pages in swap cache 2010-10-27T20:42:21.699+02:00 n22 kernel: Swap cache stats: add 0, delete 0, find 0/0 2010-10-27T20:42:21.699+02:00 n22 kernel: Free swap = 2003364kB 2010-10-27T20:42:21.699+02:00 n22 kernel: Total swap = 2003364kB 2010-10-27T20:42:21.699+02:00 n22 kernel: 498175 pages RAM 2010-10-27T20:42:21.699+02:00 n22 kernel: 270850 pages HighMem 2010-10-27T20:42:21.699+02:00 n22 kernel: 6041 pages reserved 2010-10-27T20:42:21.699+02:00 n22 kernel: 339892 pages shared 2010-10-27T20:42:21.699+02:00 n22 kernel: 261411 pages non-shared 2010-10-27T20:42:21.699+02:00 n22 kernel: kmemleak: Cannot allocate a kmemleak_object structure 2010-10-27T20:42:21.699+02:00 n22 kernel: Pid: 15475, comm: flush-254:0 Not tainted 2.6.36 #2 2010-10-27T20:42:21.699+02:00 n22 kernel: Call Trace: 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c124a580>] ? printk+0x18/0x20 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c10a3a58>] create_object+0x228/0x240 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c123e297>] kmemleak_alloc+0x27/0x50 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c109fa37>] kmem_cache_alloc+0x87/0xd0 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c107ae9e>] mempool_alloc_slab+0xe/0x10 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c107afe1>] mempool_alloc+0x41/0xf0 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c109fa37>] ? kmem_cache_alloc+0x87/0xd0 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c10cbbc8>] bio_alloc_bioset+0x28/0xb0 2010-10-27T20:42:21.699+02:00 n22 kernel: [<f9bca09b>] clone_bio+0x3b/0x90 [dm_mod] 2010-10-27T20:42:21.699+02:00 n22 kernel: [<f9bcb985>] __split_and_process_bio+0x1f5/0x710 [dm_mod] 2010-10-27T20:42:21.699+02:00 n22 kernel: [<f9bcbf5c>] dm_request+0xbc/0x1c0 [dm_mod] 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c111e15e>] generic_make_request+0x18e/0x340 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c1080d52>] ? pagevec_lookup_tag+0x22/0x30 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c107f76a>] ? write_cache_pages+0xaa/0x330 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c111e37c>] submit_bio+0x6c/0x100 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c1104329>] ? ext2_get_inode+0xc9/0x140 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c10cfab0>] ? mpage_end_io_read+0x0/0x70 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c10cf32c>] mpage_bio_submit+0x1c/0x30 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c10cfb6d>] mpage_writepages+0x4d/0x70 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c1104ac0>] ? ext2_get_block+0x0/0x850 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c110402d>] ext2_writepages+0xd/0x10 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c107fa37>] do_writepages+0x17/0x30 2010-10-27T20:42:21.699+02:00 n22 kernel: [<c10c1320>] writeback_single_inode+0x80/0x240 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c10c1904>] writeback_sb_inodes+0xb4/0x160 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c10c1e84>] writeback_inodes_wb+0x84/0x120 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c10c20eb>] wb_writeback+0x1cb/0x210 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c124b4ee>] ? schedule_timeout+0x10e/0x1e0 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c10c2197>] wb_do_writeback+0x67/0x140 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c10c22e1>] bdi_writeback_thread+0x71/0x130 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c10c2270>] ? bdi_writeback_thread+0x0/0x130 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c104b0f4>] kthread+0x74/0x80 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c104b080>] ? kthread+0x0/0x80 2010-10-27T20:42:21.700+02:00 n22 kernel: [<c100327e>] kernel_thread_helper+0x6/0x18 2010-10-27T20:42:21.700+02:00 n22 kernel: kmemleak: Kernel memory leak detector disabled 2010-10-27T20:42:21.700+02:00 n22 kernel: kmemleak: Automatic memory scanning thread ended -- MfG/Kind regards Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3 -- 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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