From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040113 Description of problem: Found the following messsages in /var/log/messages: May 19 15:51:58 coop00 kernel: kswapd0: page allocation failure. order:0, mode:0x50 May 19 15:51:58 coop00 kernel: May 19 15:51:58 coop00 kernel: Call Trace:<ffffffff80152834>{__alloc_pages+706} <ffffffff8 0152899>{__get_free_pages+76} May 19 15:51:58 coop00 kernel: <ffffffff80155c12>{cache_grow+202} <ffffffff80156131 >{cache_alloc_refill+394} May 19 15:51:58 coop00 kernel: <ffffffff801563aa>{kmem_cache_alloc+52} <ffffffffa00 0728a>{:jbd:journal_alloc_journal_head+18} May 19 15:51:58 coop00 kernel: <ffffffffa0007319>{:jbd:journal_add_journal_head+31} May 19 15:51:58 coop00 kernel: <ffffffffa0001176>{:jbd:journal_dirty_data+48} <ffff ffffa00154b8>{:ext3:ext3_journal_dirty_data+15} May 19 15:51:58 coop00 kernel: <ffffffffa0015342>{:ext3:walk_page_buffers+94} <ffff ffffa001579d>{:ext3:journal_dirty_data_fn+0} May 19 15:51:58 coop00 kernel: <ffffffffa00158c7>{:ext3:ext3_ordered_writepage+280} May 19 15:51:58 coop00 kernel: <ffffffff80158aed>{shrink_list+869} <ffffffff80158fb 6>{shrink_cache+712} May 19 15:51:58 coop00 kernel: <ffffffff801585e7>{shrink_slab+132} <ffffffff801325f a>{autoremove_wake_function+0} May 19 15:51:58 coop00 kernel: <ffffffff80159c9b>{balance_pgdat+385} <ffffffff80159 ede>{kswapd+303} May 19 15:51:58 coop00 kernel: <ffffffff801325fa>{autoremove_wake_function+0} <ffff ffff801325fa>{autoremove_wake_function+0} May 19 15:51:59 coop00 kernel: <ffffffff80111ce7>{child_rip+8} <ffffffff80159daf>{k swapd+0} May 19 15:52:00 coop00 kernel: <ffffffff80111cdf>{child_rip+0} May 19 15:52:00 coop00 kernel: ENOMEM in journal_alloc_journal_head, retrying. The kswapd0 message and stack trace repeats several times. The system seems to continue to work fine afterwards. I think these were triggered by running the bonnie++ benchmark on an ext3 filesystem. Version-Release number of selected component (if applicable): kernel-smp-2.6.5-1.358 How reproducible: Couldn't Reproduce Additional info:
Bad hardware - apparently a strange memory issue on a dual processor Opteron