[Xen-users] page allocation failures

[Richie <listmail@xxxxxxxxxxxx>]

I just discovered a few page allocation errors in dmesg on dom0.  xm dmesg attached.  It's not a full crash, dom0/domU are still up.  Any ideas for things to check or additional information to provide?


Ubuntu Lucid alternate install
Xen 4.0 testing (last commit Oct. 18th 21368:5221fcc3df64)
dom0 2.6.34 (base release) + Andrew Lyon's patches


upowerd: page allocation failure. order:4, mode:0xd0
Pid: 9520, comm: upowerd Not tainted 2.6.34-sxen5 #1
Call Trace:
 [<ffffffff8019a371>] ? __alloc_pages_nodemask+0x553/0x5d9
 [<ffffffff801beb0d>] ? cache_alloc_refill+0x295/0x526
 [<ffffffff801bf1e9>] ? kmem_cache_alloc_notrace+0x64/0xd4
 [<ffffffff803b0b59>] ? hiddev_open+0x61/0x22c
 [<ffffffff8036ecb7>] ? usb_open+0xb5/0x161
 [<ffffffff801c669d>] ? chrdev_open+0x16a/0x18b
 [<ffffffff801c6533>] ? chrdev_open+0x0/0x18b
 [<ffffffff801c2493>] ? __dentry_open+0x16f/0x2a9
 [<ffffffff801cd2b5>] ? do_last+0x4ba/0x62a
 [<ffffffff801cef0e>] ? do_filp_open+0x1e7/0x5c3
 [<ffffffff801b0d45>] ? unmap_region+0x139/0x14f
 [<ffffffff801c2244>] ? do_sys_open+0x56/0xf9
 [<ffffffff80104e48>] ? system_call_fastpath+0x16/0x1b
 [<ffffffff80104de0>] ? system_call+0x0/0x52
Mem-Info:
DMA per-cpu:
CPU    0: hi:    0, btch:   1 usd:   0
CPU    1: hi:    0, btch:   1 usd:   0
DMA32 per-cpu:
CPU    0: hi:  155, btch:  38 usd:   0
CPU    1: hi:  155, btch:  38 usd:   0
active_anon:12905 inactive_anon:43123 isolated_anon:3
 active_file:55968 inactive_file:89419 isolated_file:0
 unevictable:4 dirty:103 writeback:0 unstable:0
 free:5926 slab_reclaimable:17630 slab_unreclaimable:5765
 mapped:6962 shmem:231 pagetables:0 bounce:0
DMA free:4040kB min:60kB low:72kB high:88kB active_anon:0kB inactive_anon:32kB active_file:20kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:16160kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:24kB slab_unreclaimable:0kB kernel_stack:8kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 994 994 994
DMA32 free:19664kB min:4000kB low:5000kB high:6000kB active_anon:51620kB inactive_anon:172460kB active_file:223852kB inactive_file:357672kB unevictable:16kB isolated(anon):12kB isolated(file):0kB present:1017968kB mlocked:16kB dirty:412kB writeback:0kB mapped:27848kB shmem:924kB slab_reclaimable:70496kB slab_unreclaimable:23060kB kernel_stack:2336kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
DMA: 4*4kB 1*8kB 3*16kB 4*32kB 4*64kB 4*128kB 2*256kB 3*512kB 1*1024kB 0*2048kB 0*4096kB = 4040kB
DMA32: 4100*4kB 366*8kB 19*16kB 1*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 19664kB
146352 total pagecache pages
723 pages in swap cache
Swap cache stats: add 2208, delete 1485, find 1298/1371
Free swap  = 2091000kB
Total swap = 2097148kB
264192 pages RAM
26712 pages reserved
131842 pages shared
127043 pages non-shared
hald-probe-hidd: page allocation failure. order:4, mode:0xd0
Pid: 9639, comm: hald-probe-hidd Not tainted 2.6.34-sxen5 #1
Call Trace:
 [<ffffffff8019a371>] ? __alloc_pages_nodemask+0x553/0x5d9
 [<ffffffff801beb0d>] ? cache_alloc_refill+0x295/0x526
 [<ffffffff801bf1e9>] ? kmem_cache_alloc_notrace+0x64/0xd4
 [<ffffffff803b0b59>] ? hiddev_open+0x61/0x22c
 [<ffffffff8036ecb7>] ? usb_open+0xb5/0x161
 [<ffffffff801c669d>] ? chrdev_open+0x16a/0x18b
 [<ffffffff801c6533>] ? chrdev_open+0x0/0x18b
 [<ffffffff801c2493>] ? __dentry_open+0x16f/0x2a9
 [<ffffffff801cd2b5>] ? do_last+0x4ba/0x62a
 [<ffffffff801cef0e>] ? do_filp_open+0x1e7/0x5c3
 [<ffffffff8046a174>] ? schedule+0x78a/0x86d
 [<ffffffff8013fd1d>] ? do_sigaction+0x11d/0x187
 [<ffffffff801c2244>] ? do_sys_open+0x56/0xf9
 [<ffffffff80104e48>] ? system_call_fastpath+0x16/0x1b
 [<ffffffff80104de0>] ? system_call+0x0/0x52
Mem-Info:
DMA per-cpu:
CPU    0: hi:    0, btch:   1 usd:   0
CPU    1: hi:    0, btch:   1 usd:   0
DMA32 per-cpu:
CPU    0: hi:  155, btch:  38 usd:   0
CPU    1: hi:  155, btch:  38 usd:   0
active_anon:15586 inactive_anon:43023 isolated_anon:0
 active_file:56665 inactive_file:82966 isolated_file:46
 unevictable:4 dirty:121 writeback:0 unstable:0
 free:8929 slab_reclaimable:17312 slab_unreclaimable:5933
 mapped:8605 shmem:497 pagetables:0 bounce:0
DMA free:4040kB min:60kB low:72kB high:88kB active_anon:0kB inactive_anon:32kB active_file:20kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:16160kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:24kB slab_unreclaimable:0kB kernel_stack:8kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 994 994 994
DMA32 free:31676kB min:4000kB low:5000kB high:6000kB active_anon:62344kB inactive_anon:172060kB active_file:226640kB inactive_file:331860kB unevictable:16kB isolated(anon):0kB isolated(file):184kB present:1017968kB mlocked:16kB dirty:484kB writeback:0kB mapped:34420kB shmem:1988kB slab_reclaimable:69224kB slab_unreclaimable:23732kB kernel_stack:2368kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
DMA: 4*4kB 1*8kB 3*16kB 4*32kB 4*64kB 4*128kB 2*256kB 3*512kB 1*1024kB 0*2048kB 0*4096kB = 4040kB
DMA32: 6891*4kB 452*8kB 13*16kB 1*32kB 4*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 31676kB
140779 total pagecache pages
625 pages in swap cache
Swap cache stats: add 2233, delete 1608, find 1359/1438
Free swap  = 2091132kB
Total swap = 2097148kB
264192 pages RAM
26712 pages reserved
136165 pages shared
124124 pages non-shared

xmdmesg.txt
Description: Text document

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