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Page allocation failures

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Page allocation failures

Posted: 29 Jul 2009, 14:01
by mad
I've had some "issues" lately with page allocation failures. I say "issues" since except for generating some stack traces and a "few" lines in the logs everything seems to be running just fine.
There seems to be no obvious pattern as to why these errors occur. So any ideas are welcome...

I'm running the "Linux xyz.xyz.xyz 2.6.30.1 #4 Fri Jul 17 14:46:22 CEST 2009 ppc GNU/Linux" kernel. This is an example of what ends up in the logs:

Code: Select all

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Security Events
=-=-=-=-=-=-=-=
Jul 28 09:40:45 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:45 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:45 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:45 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:46 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:46 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:46 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:46 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:46 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:46 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:40:58 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:40:58 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:40:58 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:40:58 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:40:58 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:40:58 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:40:59 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:40:59 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:40:59 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:06 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:06 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:07 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:07 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:07 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:08 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:08 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:08 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:08 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:08 sixpack kernel: rtorrent: page allocation failure. order:0, mode:0x20
Jul 28 09:41:25 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:25 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:25 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:25 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:25 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:25 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:25 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:26 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:26 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:41:34 sixpack kernel: pdflush: page allocation failure. order:0, mode:0x20
Jul 28 09:41:34 sixpack kernel: pdflush: page allocation failure. order:0, mode:0x20
Jul 28 09:41:34 sixpack kernel: pdflush: page allocation failure. order:0, mode:0x20
Jul 28 09:41:34 sixpack kernel: pdflush: page allocation failure. order:0, mode:0x20
Jul 28 09:41:34 sixpack kernel: pdflush: page allocation failure. order:0, mode:0x20
Jul 28 09:41:34 sixpack kernel: pdflush: page allocation failure. order:0, mode:0x20
Jul 28 09:41:34 sixpack kernel: pdflush: page allocation failure. order:0, mode:0x20
Jul 28 09:42:36 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:42:36 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:42:36 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:42:36 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:42:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:42:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:42:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:42:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:42:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:16 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:16 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:16 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:16 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:16 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:16 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:16 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:16 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:17 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:43:28 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:28 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:29 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:29 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:29 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:29 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:30 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:30 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:30 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:30 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:52 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:52 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:52 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:52 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:52 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:53 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:53 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:53 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:53 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:43:53 sixpack kernel: squeezecenter-s: page allocation failure. order:0, mode:0x20
Jul 28 09:44:36 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:44:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:44:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:44:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:44:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:44:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:44:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:44:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:44:37 sixpack kernel: swapper: page allocation failure. order:0, mode:0x20
Jul 28 09:45:01 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:01 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:01 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:02 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:02 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:02 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:02 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:02 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:02 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20
Jul 28 09:45:02 sixpack kernel: ksoftirqd/0: page allocation failure. order:0, mode:0x20

System Events
=-=-=-=-=-=-=
Jul 28 09:40:45 sixpack kernel: Call Trace:
Jul 28 09:40:45 sixpack kernel: [cc033c70] [c0008414] 0xc0008414 (unreliable)
Jul 28 09:40:45 sixpack kernel: [cc033ca0] [c00553ac] 0xc00553ac
Jul 28 09:40:45 sixpack kernel: [cc033d20] [c00743fc] 0xc00743fc
Jul 28 09:40:45 sixpack kernel: [cc033d80] [c0074738] 0xc0074738
Jul 28 09:40:45 sixpack kernel: [cc033da0] [c0252d78] 0xc0252d78
Jul 28 09:40:45 sixpack kernel: [cc033dc0] [c0253ab4] 0xc0253ab4
Jul 28 09:40:45 sixpack kernel: [cc033dd0] [c01d1178] 0xc01d1178
Jul 28 09:40:45 sixpack kernel: [cc033de0] [c01d137c] 0xc01d137c
Jul 28 09:40:45 sixpack kernel: [cc033e30] [c01d1844] 0xc01d1844
Jul 28 09:40:45 sixpack kernel: [cc033e80] [c0258864] 0xc0258864
Jul 28 09:40:45 sixpack kernel: [cc033ec0] [c0024f34] 0xc0024f34
Jul 28 09:40:45 sixpack kernel: [cc033f00] [c0006324] 0xc0006324
Jul 28 09:40:45 sixpack kernel: [cc033f10] [c0024d40] 0xc0024d40
Jul 28 09:40:45 sixpack kernel: [cc033f20] [c00063c8] 0xc00063c8
Jul 28 09:40:45 sixpack kernel: [cc033f40] [c0011c34] 0xc0011c34
Jul 28 09:40:45 sixpack kernel: --- Exception: 501 at 0xff2d38c
Jul 28 09:40:45 sixpack kernel: LR = 0xff2d1e4
Jul 28 09:40:45 sixpack kernel: Mem-Info:
Jul 28 09:40:45 sixpack kernel: DMA per-cpu:
Jul 28 09:40:45 sixpack kernel: CPU    0: hi:   90, btch:  15 usd:  84
Jul 28 09:40:45 sixpack kernel: Active_anon:6205 active_file:8647 inactive_anon:13954
Jul 28 09:40:45 sixpack kernel: inactive_file:25270 unevictable:0 dirty:5501 writeback:0 unstable:0
Jul 28 09:40:45 sixpack kernel: free:182 slab:8706 mapped:11968 pagetables:245 bounce:0
Jul 28 09:40:45 sixpack kernel: DMA free:728kB min:2036kB low:2544kB high:3052kB active_anon:24820kB inactive_anon:55816kB active_file:34588kB inactive_file:101080kB unevictable:0kB present:260096kB pages_scanned:250 all_unreclaimable? no
Jul 28 09:40:45 sixpack kernel: lowmem_reserve[]: 0 0 0
Jul 28 09:40:45 sixpack kernel: DMA: 0*4kB 1*8kB 1*16kB 0*32kB 1*64kB 1*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 728kB
Jul 28 09:40:45 sixpack kernel: 41103 total pagecache pages
Jul 28 09:40:45 sixpack kernel: 7184 pages in swap cache
Jul 28 09:40:45 sixpack kernel: Swap cache stats: add 52922, delete 45738, find 41034/45812
Jul 28 09:40:45 sixpack kernel: Free swap  = 1016968kB
Jul 28 09:40:45 sixpack kernel: Total swap = 1060280kB
Jul 28 09:40:45 sixpack kernel: 65536 pages RAM
Jul 28 09:40:45 sixpack kernel: 1524 pages reserved
Jul 28 09:40:45 sixpack kernel: 42635 pages shared
Jul 28 09:40:45 sixpack kernel: 28251 pages non-shared
Jul 28 09:40:45 sixpack kernel: Call Trace:
Jul 28 09:40:45 sixpack kernel: [cc033c70] [c0008414] 0xc0008414 (unreliable)
Jul 28 09:40:45 sixpack kernel: [cc033ca0] [c00553ac] 0xc00553ac
Jul 28 09:40:45 sixpack kernel: [cc033d20] [c00743fc] 0xc00743fc
Jul 28 09:40:45 sixpack kernel: [cc033d80] [c0074738] 0xc0074738
Jul 28 09:40:45 sixpack kernel: [cc033da0] [c0252d78] 0xc0252d78
Jul 28 09:40:45 sixpack kernel: [cc033dc0] [c0253ab4] 0xc0253ab4
Jul 28 09:40:45 sixpack kernel: [cc033dd0] [c01d1178] 0xc01d1178
Jul 28 09:40:45 sixpack kernel: [cc033de0] [c01d137c] 0xc01d137c
Jul 28 09:40:45 sixpack kernel: [cc033e30] [c01d1844] 0xc01d1844
Jul 28 09:40:45 sixpack kernel: [cc033e80] [c0258864] 0xc0258864
Jul 28 09:40:45 sixpack kernel: [cc033ec0] [c0024f34] 0xc0024f34
Jul 28 09:40:45 sixpack kernel: [cc033f00] [c0006324] 0xc0006324
Jul 28 09:40:45 sixpack kernel: [cc033f10] [c0024d40] 0xc0024d40
Jul 28 09:40:45 sixpack kernel: [cc033f20] [c00063c8] 0xc00063c8
Jul 28 09:40:45 sixpack kernel: [cc033f40] [c0011c34] 0xc0011c34
Jul 28 09:40:45 sixpack kernel: --- Exception: 501 at 0xff2d38c
Jul 28 09:40:45 sixpack kernel: LR = 0xff2d1e4
Jul 28 09:40:45 sixpack kernel: Mem-Info:
Jul 28 09:40:45 sixpack kernel: DMA per-cpu:
Jul 28 09:40:45 sixpack kernel: CPU    0: hi:   90, btch:  15 usd:  84
Jul 28 09:40:45 sixpack kernel: Active_anon:6205 active_file:8647 inactive_anon:13954
Jul 28 09:40:45 sixpack kernel: inactive_file:25270 unevictable:0 dirty:5501 writeback:0 unstable:0
Jul 28 09:40:45 sixpack kernel: free:182 slab:8706 mapped:11968 pagetables:245 bounce:0
Jul 28 09:40:45 sixpack kernel: DMA free:728kB min:2036kB low:2544kB high:3052kB active_anon:24820kB inactive_anon:55816kB active_file:34588kB inactive_file:101080kB unevictable:0kB present:260096kB pages_scanned:250 all_unreclaimable? no
Jul 28 09:40:45 sixpack kernel: lowmem_reserve[]: 0 0 0
Jul 28 09:40:45 sixpack kernel: DMA: 0*4kB 1*8kB 1*16kB 0*32kB 1*64kB 1*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 728kB
Jul 28 09:40:45 sixpack kernel: 41103 total pagecache pages
Jul 28 09:40:45 sixpack kernel: 7184 pages in swap cache
Jul 28 09:40:45 sixpack kernel: Swap cache stats: add 52922, delete 45738, find 41034/45812
Jul 28 09:40:45 sixpack kernel: Free swap  = 1016968kB
Jul 28 09:40:45 sixpack kernel: Total swap = 1060280kB
Jul 28 09:40:45 sixpack kernel: 65536 pages RAM
Jul 28 09:40:45 sixpack kernel: 1524 pages reserved
Jul 28 09:40:45 sixpack kernel: 42635 pages shared
Jul 28 09:40:45 sixpack kernel: 28251 pages non-shared
Jul 28 09:40:45 sixpack kernel: Call Trace:
Jul 28 09:40:45 sixpack kernel: [cc033c70] [c0008414] 0xc0008414 (unreliable)
Jul 28 09:40:45 sixpack kernel: [cc033ca0] [c00553ac] 0xc00553ac
Jul 28 09:40:45 sixpack kernel: [cc033d20] [c00743fc] 0xc00743fc
Jul 28 09:40:45 sixpack kernel: [cc033d80] [c0074738] 0xc0074738
Jul 28 09:40:45 sixpack kernel: [cc033da0] [c0252d78] 0xc0252d78
Jul 28 09:40:45 sixpack kernel: [cc033dc0] [c0253ab4] 0xc0253ab4
Jul 28 09:40:45 sixpack kernel: [cc033dd0] [c01d1178] 0xc01d1178
Jul 28 09:40:45 sixpack kernel: [cc033de0] [c01d137c] 0xc01d137c
Jul 28 09:40:45 sixpack kernel: [cc033e30] [c01d1844] 0xc01d1844
Jul 28 09:40:45 sixpack kernel: [cc033e80] [c0258864] 0xc0258864
Jul 28 09:40:45 sixpack kernel: [cc033ec0] [c0024f34] 0xc0024f34
Jul 28 09:40:45 sixpack kernel: [cc033f00] [c0006324] 0xc0006324
Jul 28 09:40:45 sixpack kernel: [cc033f10] [c0024d40] 0xc0024d40
Jul 28 09:40:45 sixpack kernel: [cc033f20] [c00063c8] 0xc00063c8
Jul 28 09:40:45 sixpack kernel: [cc033f40] [c0011c34] 0xc0011c34
Jul 28 09:40:45 sixpack kernel: --- Exception: 501 at 0xff2d38c
Jul 28 09:40:45 sixpack kernel: LR = 0xff2d1e4
Jul 28 09:40:45 sixpack kernel: Mem-Info:
Jul 28 09:40:45 sixpack kernel: DMA per-cpu:
Jul 28 09:40:45 sixpack kernel: CPU    0: hi:   90, btch:  15 usd:  84
Jul 28 09:40:45 sixpack kernel: Active_anon:6205 active_file:8647 inactive_anon:13954
Jul 28 09:40:45 sixpack kernel: inactive_file:25270 unevictable:0 dirty:5501 writeback:0 unstable:0
Jul 28 09:40:45 sixpack kernel: free:182 slab:8706 mapped:11968 pagetables:245 bounce:0
Jul 28 09:40:45 sixpack kernel: DMA free:728kB min:2036kB low:2544kB high:3052kB active_anon:24820kB inactive_anon:55816kB active_file:34588kB inactive_file:101080kB unevictable:0kB present:260096kB pages_scanned:250 all_unreclaimable? no
Jul 28 09:40:45 sixpack kernel: lowmem_reserve[]: 0 0 0
Jul 28 09:40:45 sixpack kernel: DMA: 0*4kB 1*8kB 1*16kB 0*32kB 1*64kB 1*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 728kB
Jul 28 09:40:45 sixpack kernel: 41103 total pagecache pages
Jul 28 09:40:45 sixpack kernel: 7184 pages in swap cache
Jul 28 09:40:45 sixpack kernel: Swap cache stats: add 52922, delete 45738, find 41034/45812
Jul 28 09:40:45 sixpack kernel: Free swap  = 1016968kB
Jul 28 09:40:45 sixpack kernel: Total swap = 1060280kB
Jul 28 09:40:45 sixpack kernel: 65536 pages RAM
Jul 28 09:40:45 sixpack kernel: 1524 pages reserved
Jul 28 09:40:45 sixpack kernel: 42635 pages shared
Jul 28 09:40:45 sixpack kernel: 28251 pages non-shared

Re: Page allocation failures

Posted: 03 Aug 2009, 07:56
by tor
Hi mad,

It seems like you either has hit a bug in our testing kernel or more likely have run out of memory. Do you experience the same problems with current stable kernel or did the problems start when upgrading?

/Tor

Re: Page allocation failures

Posted: 04 Aug 2009, 07:39
by mad
It started after upgrading but further investigations point out a rtorrent (not the backport) as the villain in this case. Case closed.

Re: Page allocation failures

Posted: 08 Mar 2010, 09:50
by ejvn
Since februari 2010 I have two brand new BUBBA|TWO systems. I am testing the backup functionality by storing a number of copies of Virtual Applicances and started a backup to the second bubba. The second bubba shows an excessive number of page allocation failures, see attachement (zipped txt file). I am using an encryption key, and I have tested the backup beforehand with some smaller files (that works).

This morning (March 8, around 8 o'clock), the source contains several (large) files, with a total of 26GB. The destination contains some files, but with about 6GB in total (@ 15.00, it is of course possible that the transfer is still in progress). I have a 1Gbit internal network.

I have updated the two bubba's recently.
Package name Package version
bubba-frontend 1.3.1
bubba-backend 1.3.3
bubba-album 1.3.0
filetransferdaemon 0.50.19+b3
squeezecenter 7.4.1.dfsg1-6


Are the page allocation failures a 'normal' habit or might there be something wrong?

Regards,

Ernst Jan
All times are UTC-04:00
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