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[Julian Wiedmann <728835@xxxxxxxxxxxxxxxxxx>]

This release has reached end-of-life [0].

[0] https://wiki.ubuntu.com/Releases

** Changed in: linux (Ubuntu Natty)
       Status: Triaged => Invalid

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https://bugs.launchpad.net/bugs/728835

Title:
  [ath9] kswapd0: page allocation failure. order:1, mode:0x4020

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Natty:
  Invalid

Bug description:
  SRU Justification:

  Impact: Without the fix, users will experience a page allocation
  failure with the ath9k driver

  Fix: Upstream commit 0d95521ea74735826cb2e28bebf6a07392c75bfa

  Test Case: Boot without a patched kernel and you'll notice page
  allocation failures in your dmesg output.  Boot with a patched kernel
  and the errors are no longer present.

  See:
  kernel dmesg 2.6.38-rc[4-7]
  https://bugzilla.kernel.org/show_bug.cgi?id=28922
  $ uname -a
  Linux VGN-NS130FE 2.6.38-020638rc7-generic #201103020909 SMP Wed Mar 2 09:11:42 UTC 2011 x86_64 GNU/Linux

  [274762.344172] kswapd0: page allocation failure. order:1, mode:0x4020
  [274762.344178] Pid: 26, comm: kswapd0 Not tainted 2.6.38-020638rc4-generic
  #201102081010
  [274762.344180] Call Trace:
  [274762.344183]  <IRQ>  [<ffffffff8110f213>] ?
  __alloc_pages_slowpath+0x553/0x720
  [274762.344196]  [<ffffffff8110beff>] ? zone_watermark_ok+0x1f/0x30
  [274762.344201]  [<ffffffff8110f573>] ? __alloc_pages_nodemask+0x193/0x1d0
  [274762.344205]  [<ffffffff815a8884>] ? _raw_spin_lock_irqsave+0x34/0x50
  [274762.344210]  [<ffffffff81144a93>] ? alloc_pages_current+0xa3/0x110
  [274762.344216]  [<ffffffff8114e245>] ? allocate_slab+0x175/0x180
  [274762.344219]  [<ffffffff8114e840>] ? new_slab+0x30/0x170
  [274762.344223]  [<ffffffff8114fdb9>] ? __slab_alloc+0x1e9/0x250
  [274762.344235]  [<ffffffffa01090c9>] ? ath_rxbuf_alloc+0x39/0xc0 [ath]
  [274762.344239]  [<ffffffff81151428>] ? __kmalloc_node_track_caller+0x188/0x1e0
  [274762.344244]  [<ffffffffa01090c9>] ? ath_rxbuf_alloc+0x39/0xc0 [ath]
  [274762.344248]  [<ffffffff814ab22f>] ? __alloc_skb+0x7f/0x170
  [274762.344252]  [<ffffffffa01090c9>] ? ath_rxbuf_alloc+0x39/0xc0 [ath]
  [274762.344260]  [<ffffffffa022e884>] ? ath_rx_tasklet+0x294/0x600 [ath9k]
  [274762.344266]  [<ffffffffa022b2c8>] ? ath9k_tasklet+0xb8/0x180 [ath9k]
  [274762.344270]  [<ffffffff8106b3ba>] ? tasklet_action+0x6a/0x110
  [274762.344273]  [<ffffffff8106ad40>] ? __do_softirq+0xb0/0x1c0
  [274762.344278]  [<ffffffff8102fcfa>] ? ack_apic_level+0x7a/0xf0
  [274762.344282]  [<ffffffff8100cf1c>] ? call_softirq+0x1c/0x30
  [274762.344285]  [<ffffffff8100e875>] ? do_softirq+0x65/0xa0
  [274762.344288]  [<ffffffff8106aed5>] ? irq_exit+0x85/0x90
  [274762.344292]  [<ffffffff815b0cf9>] ? do_IRQ+0x69/0xe0
  [274762.344295]  [<ffffffff815a8f13>] ? ret_from_intr+0x0/0x15
  [274762.344297]  <EOI>  [<ffffffff815a88d9>] ?
  _raw_spin_unlock_irqrestore+0x19/0x30
  [274762.344303]  [<ffffffff811484c1>] ? isolate_freepages+0x111/0x1a0
  [274762.344306]  [<ffffffff81148680>] ? compaction_alloc+0x60/0x70
  [274762.344309]  [<ffffffff811534c8>] ? unmap_and_move+0x48/0x2f0
  [274762.344312]  [<ffffffff81153815>] ? migrate_pages+0xa5/0x140
  [274762.344315]  [<ffffffff81148620>] ? compaction_alloc+0x0/0x70
  [274762.344318]  [<ffffffff81148cc0>] ? compact_zone+0xa0/0x150
  [274762.344321]  [<ffffffff81148fca>] ? compact_zone_order+0xca/0x100
  [274762.344326]  [<ffffffff8111a05b>] ? balance_pgdat+0x4eb/0x5d0
  [274762.344330]  [<ffffffff8111a26b>] ? kswapd+0x12b/0x1a0
  [274762.344333]  [<ffffffff8111a140>] ? kswapd+0x0/0x1a0
  [274762.344337]  [<ffffffff810850e7>] ? kthread+0x97/0xa0
  [274762.344341]  [<ffffffff8100ce24>] ? kernel_thread_helper+0x4/0x10
  [274762.344344]  [<ffffffff81085050>] ? kthread+0x0/0xa0
  [274762.344347]  [<ffffffff8100ce20>] ? kernel_thread_helper+0x0/0x10
  [274762.344349] Mem-Info:
  [274762.344351] Node 0 DMA per-cpu:
  [274762.344354] CPU    0: hi:    0, btch:   1 usd:   0
  [274762.344357] CPU    1: hi:    0, btch:   1 usd:   0
  [274762.344358] Node 0 DMA32 per-cpu:
  [274762.344361] CPU    0: hi:  186, btch:  31 usd: 180
  [274762.344363] CPU    1: hi:  186, btch:  31 usd: 181
  [274762.344368] active_anon:334552 inactive_anon:83841 isolated_anon:20
  [274762.344369]  active_file:57732 inactive_file:58043 isolated_file:0
  [274762.344370]  unevictable:42 dirty:2414 writeback:0 unstable:0
  [274762.344371]  free:8641 slab_reclaimable:10621 slab_unreclaimable:9673
  [274762.344372]  mapped:170461 shmem:30731 pagetables:12009 bounce:0
  [274762.344375] Node 0 DMA free:11556kB min:36kB low:44kB high:52kB
  active_anon:0kB inactive_anon:0kB active_file:768kB inactive_file:1976kB
  unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15668kB
  mlocked:0kB dirty:0kB writeback:0kB mapped:1204kB shmem:0kB
  slab_reclaimable:68kB slab_unreclaimable:312kB kernel_stack:0kB pagetables:4kB
  unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
  [274762.344384] lowmem_reserve[]: 0 2883 2883 2883
  [274762.344389] Node 0 DMA32 free:23008kB min:6848kB low:8560kB high:10272kB
  active_anon:1338208kB inactive_anon:335364kB active_file:230160kB
  inactive_file:230196kB unevictable:168kB isolated(anon):80kB isolated(file):0kB
  present:2952660kB mlocked:168kB dirty:9656kB writeback:0kB mapped:680640kB
  shmem:122924kB slab_reclaimable:42416kB slab_unreclaimable:38380kB
  kernel_stack:3480kB pagetables:48032kB unstable:0kB bounce:0kB
  writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
  [274762.344399] lowmem_reserve[]: 0 0 0 0
  [274762.344403] Node 0 DMA: 3*4kB 3*8kB 4*16kB 6*32kB 4*64kB 4*128kB 1*256kB
  2*512kB 3*1024kB 3*2048kB 0*4096kB = 11556kB
  [274762.344413] Node 0 DMA32: 5438*4kB 8*8kB 14*16kB 0*32kB 1*64kB 1*128kB
  3*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 23000kB
  [274762.344423] 165982 total pagecache pages
  [274762.344425] 19473 pages in swap cache
  [274762.344427] Swap cache stats: add 650825, delete 631352, find
  1249740/1303578
  [274762.344429] Free swap  = 3180904kB
  [274762.344431] Total swap = 3574424kB
  [274762.350609] 752624 pages RAM
  [274762.350609] 153594 pages reserved
  [274762.350609] 275668 pages shared
  [274762.350609] 491506 pages non-shared
  [274762.350609] SLUB: Unable to allocate memory on node -1 (gfp=0x20)
  [274762.350609]   cache: kmalloc-8192, object size: 8192, buffer size: 8192,
  default order: 3, min order: 1
  [274762.350609]   node 0: slabs: 173, objs: 677, free: 0
  [274762.358458] skbuff alloc of size 3904 failed

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