On Sunday 09 May 2010 21:38:25 Ritesh Raj Sarraf wrote: > On Thursday 06 May 2010 07:16:01 Ben Hutchings wrote: > > On Mon, 2010-05-03 at 23:58 +0530, Ritesh Raj Sarraf wrote: > > > Package: linux-2.6 > > > Version: 2.6.32-11 > > > Severity: normal > > > > > > I often keep getting this allocation failure message. My gut feel is > > > that it gets triggered when I do some I/O. Today, it got triggered when > > > I was copying a couple of Gig data from my local encrypted backup > > > partition to an external USB disk. > > [...] > > > > This is a bug/limitation in the iwlwifi drivers. It appears to be fixed > > in Linux 2.6.33, but it requires quite a large change. The next release > > of Debian will be based on Linux 2.6.32 and I don't know whether we will > > be able to apply that change. > > > > Too bad. There will be many users using this wifi device. :-( > And the symptom is also not a good one. When the bug triggers, it seems to almost eat > down all of your memory. > > Ben, I think this bug is more than the iwlwifi driver. While this kernel message is from the 2.6.33 kernel, I think the bug is the same one. May 9 22:07:07 champaran kernel: [34858.683705] Xorg: page allocation failure. order:1, mode:0x50d0 May 9 22:07:07 champaran kernel: [34858.683710] Pid: 2860, comm: Xorg Not tainted 2.6.33-2-amd64 #1 May 9 22:07:07 champaran kernel: [34858.683712] Call Trace: May 9 22:07:07 champaran kernel: [34858.683724] [<ffffffff810b5747>] ? __alloc_pages_nodemask+0x56d/0x5e2 May 9 22:07:07 champaran kernel: [34858.683728] [<ffffffff810e154d>] ? new_slab+0x5b/0x1ca May 9 22:07:07 champaran kernel: [34858.683731] [<ffffffff810e18ac>] ? __slab_alloc+0x1f0/0x3a2 May 9 22:07:07 champaran kernel: [34858.683735] [<ffffffff81205dba>] ? agp_alloc_page_array+0x2b/0x4a May 9 22:07:07 champaran kernel: [34858.683739] [<ffffffff810e2ceb>] ? __kmalloc+0xf1/0x141 May 9 22:07:07 champaran kernel: [34858.683741] [<ffffffff81205dba>] ? agp_alloc_page_array+0x2b/0x4a May 9 22:07:07 champaran kernel: [34858.683744] [<ffffffff81205dba>] ? agp_alloc_page_array+0x2b/0x4a May 9 22:07:07 champaran kernel: [34858.683746] [<ffffffff81205e47>] ? agp_generic_alloc_user+0x6e/0xe2 May 9 22:07:07 champaran kernel: [34858.683749] [<ffffffff81205fb0>] ? agp_allocate_memory+0x48/0xe8 May 9 22:07:07 champaran kernel: [34858.683802] [<ffffffffa01018ad>] ? drm_agp_bind_pages+0x4e/0xd0 [drm] May 9 22:07:07 champaran kernel: [34858.683817] [<ffffffffa0147329>] ? i915_gem_object_bind_to_gtt+0x1c5/0x27a [i915] May 9 22:07:07 champaran kernel: [34858.683825] [<ffffffffa01473fc>] ? i915_gem_object_pin+0x1e/0x87 [i915] May 9 22:07:07 champaran kernel: [34858.683834] [<ffffffffa01481d1>] ? i915_gem_do_execbuffer+0x4aa/0xe89 [i915] May 9 22:07:07 champaran kernel: [34858.683839] [<ffffffff810d1788>] ? vmap_page_range_noflush+0x287/0x2ec May 9 22:07:07 champaran kernel: [34858.683842] [<ffffffff810d1812>] ? map_vm_area+0x25/0x36 May 9 22:07:07 champaran kernel: [34858.683845] [<ffffffff810d1951>] ? __vmalloc_area_node+0x12e/0x152 May 9 22:07:07 champaran kernel: [34858.683848] [<ffffffff810d19d4>] ? __vmalloc_node+0x5f/0x8e May 9 22:07:07 champaran kernel: [34858.683856] [<ffffffffa0148e65>] ? i915_gem_execbuffer+0x194/0x223 [i915] May 9 22:07:07 champaran kernel: [34858.683861] [<ffffffff812f35c4>] ? _lock_kernel+0x53/0x8a May 9 22:07:07 champaran kernel: [34858.683870] [<ffffffffa00fbef5>] ? drm_ioctl+0x260/0x32b [drm] May 9 22:07:07 champaran kernel: [34858.683873] [<ffffffff810c4c5a>] ? __do_fault+0x380/0x3c3 May 9 22:07:07 champaran kernel: [34858.683882] [<ffffffffa0148cd1>] ? i915_gem_execbuffer+0x0/0x223 [i915] May 9 22:07:07 champaran kernel: [34858.683887] [<ffffffff81061b18>] ? __remove_hrtimer+0x74/0x80 May 9 22:07:07 champaran kernel: [34858.683892] [<ffffffff810f5b4b>] ? vfs_ioctl+0x21/0x92 May 9 22:07:07 champaran kernel: [34858.683894] [<ffffffff810f60c7>] ? do_vfs_ioctl+0x495/0x4d3 May 9 22:07:07 champaran kernel: [34858.683898] [<ffffffff8104aa0e>] ? do_setitimer+0xbc/0x1d9 May 9 22:07:07 champaran kernel: [34858.683901] [<ffffffff8104ab87>] ? sys_setitimer+0x5c/0x9a May 9 22:07:07 champaran kernel: [34858.683903] [<ffffffff810f6156>] ? sys_ioctl+0x51/0x70 May 9 22:07:07 champaran kernel: [34858.683908] [<ffffffff81008ac2>] ? system_call_fastpath+0x16/0x1b May 9 22:07:07 champaran kernel: [34858.683910] Mem-Info: May 9 22:07:07 champaran kernel: [34858.683912] Node 0 DMA per-cpu: May 9 22:07:07 champaran kernel: [34858.683915] CPU 0: hi: 0, btch: 1 usd: 0 May 9 22:07:07 champaran kernel: [34858.683917] CPU 1: hi: 0, btch: 1 usd: 0 May 9 22:07:07 champaran kernel: [34858.683918] Node 0 DMA32 per-cpu: May 9 22:07:07 champaran kernel: [34858.683920] CPU 0: hi: 186, btch: 31 usd: 168 May 9 22:07:07 champaran kernel: [34858.683922] CPU 1: hi: 186, btch: 31 usd: 0 May 9 22:07:07 champaran kernel: [34858.683926] active_anon:282314 inactive_anon:90268 isolated_anon:0 May 9 22:07:07 champaran kernel: [34858.683927] active_file:140695 inactive_file:158480 isolated_file:0 May 9 22:07:07 champaran kernel: [34858.683928] unevictable:0 dirty:6 writeback:0 unstable:0 May 9 22:07:07 champaran kernel: [34858.683929] free:7506 slab_reclaimable:30686 slab_unreclaimable:14882 May 9 22:07:07 champaran kernel: [34858.683930] mapped:31957 shmem:84560 pagetables:10876 bounce:0 May 9 22:07:07 champaran kernel: [34858.683932] Node 0 DMA free:11656kB min:32kB low:40kB high:48kB active_anon:0kB inactive_anon:0kB active_file:1124kB inactive_file:2644kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15348kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:356kB slab_unreclaimable:140kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no May 9 22:07:07 champaran kernel: [34858.683941] lowmem_reserve[]: 0 2910 2910 2910 May 9 22:07:07 champaran kernel: [34858.683944] Node 0 DMA32 free:18368kB min:6884kB low:8604kB high:10324kB active_anon:1129256kB inactive_anon:361072kB active_file:561656kB inactive_file:631276kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:2979864kB mlocked:0kB dirty:24kB writeback:0kB mapped:127828kB shmem:338240kB slab_reclaimable:122388kB slab_unreclaimable:59388kB kernel_stack:3000kB pagetables:43504kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:138 all_unreclaimable? no May 9 22:07:07 champaran kernel: [34858.683954] lowmem_reserve[]: 0 0 0 0 May 9 22:07:07 champaran kernel: [34858.683957] Node 0 DMA: 2*4kB 4*8kB 4*16kB 5*32kB 8*64kB 3*128kB 1*256kB 2*512kB 3*1024kB 3*2048kB 0*4096kB = 11656kB May 9 22:07:07 champaran kernel: [34858.683965] Node 0 DMA32: 3884*4kB 60*8kB 43*16kB 22*32kB 11*64kB 2*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 18368kB May 9 22:07:07 champaran kernel: [34858.683973] 391025 total pagecache pages May 9 22:07:07 champaran kernel: [34858.683974] 7304 pages in swap cache May 9 22:07:07 champaran kernel: [34858.683976] Swap cache stats: add 15029, delete 7725, find 264627/264699 May 9 22:07:07 champaran kernel: [34858.683977] Free swap = 3162344kB May 9 22:07:07 champaran kernel: [34858.683979] Total swap = 3219448kB May 9 22:07:07 champaran kernel: [34858.694163] 760320 pages RAM May 9 22:07:07 champaran kernel: [34858.694164] 13492 pages reserved May 9 22:07:07 champaran kernel: [34858.694166] 320460 pages shared May 9 22:07:07 champaran kernel: [34858.694167] 631156 pages non-shared May 9 22:07:07 champaran kernel: [34858.694169] SLUB: Unable to allocate memory on node -1 (gfp=0x10d0) May 9 22:07:07 champaran kernel: [34858.694172] cache: kmalloc-8192, object size: 8192, buffer size: 8192, default order: 3, min order: 1 May 9 22:07:07 champaran kernel: [34858.694175] node 0: slabs: 9, objs: 36, free: 0 This occured when I asked leafnode to give me the list on messages in the linux-kernel newsgroup (which is huge). All these messages (this one and the previous one with iwlwifi) get triggered only when there is heavy I/O activity. I don't think this bug is related to iwlwifi. What do you think ? Regards, Ritesh -- Ritesh Raj Sarraf | http://people.debian.org/~rrs "Necessity is the mother of invention."
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