Im having some weird problems with 2 similar PCs I have in my office, one with Centos and the second with Ubuntu 11.04. In Ubuntu, the systems gets suddenly slow when there is a load rise (more often when I try to compile something, also when starting the load phase in my game project, and noticed another crash today when starting JDownloader), after that I have to reset the PC. This is what I found in kern.log:
Code:
Aug  3 16:04:29 gaara kernel: [13230.665113] npviewer.bin[9914]: segfault at f37c6af8 ip 00000000f6fa5bc8 sp 00000000f2bfd04c error 6 in libpthread-2.13.so[f6f9b000+15000]
Aug  3 16:22:38 gaara kernel: [14320.672855] usb 1-8: USB disconnect, address 3
Aug  4 07:37:17 gaara kernel: [69198.960438] ubuntuone-syncd invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
Aug  4 07:37:20 gaara kernel: [69198.960442] ubuntuone-syncd cpuset=/ mems_allowed=0
Aug  4 07:37:20 gaara kernel: [69198.960446] Pid: 1561, comm: ubuntuone-syncd Tainted: P            2.6.38-10-generic #46-Ubuntu
Aug  4 07:37:20 gaara kernel: [69198.960448] Call Trace:
Aug  4 07:37:20 gaara kernel: [69198.960456]  [<ffffffff810ba5fd>] ? cpuset_print_task_mems_allowed+0x9d/0xb0
Aug  4 07:37:20 gaara kernel: [69198.960460]  [<ffffffff8110f1d1>] ? dump_header+0x91/0x1e0
Aug  4 07:37:20 gaara kernel: [69198.960464]  [<ffffffff81279e6c>] ? security_real_capable_noaudit+0x3c/0x70
Aug  4 07:37:20 gaara kernel: [69198.960467]  [<ffffffff8110f835>] ? oom_kill_process+0x85/0x180
Aug  4 07:37:20 gaara kernel: [69198.960470]  [<ffffffff8110fc72>] ? out_of_memory+0x102/0x240
Aug  4 07:37:20 gaara kernel: [69198.960473]  [<ffffffff811149c9>] ? __alloc_pages_nodemask+0x7c9/0x840
Aug  4 07:37:20 gaara kernel: [69198.960477]  [<ffffffff81149f65>] ? alloc_pages_current+0xa5/0x110
Aug  4 07:37:20 gaara kernel: [69198.960481]  [<ffffffff8110c3af>] ? __page_cache_alloc+0x8f/0xa0
Aug  4 07:37:20 gaara kernel: [69198.960484]  [<ffffffff81117415>] ? __do_page_cache_readahead+0xd5/0x220
Aug  4 07:37:20 gaara kernel: [69198.960487]  [<ffffffff811178c1>] ? ra_submit+0x21/0x30
Aug  4 07:37:20 gaara kernel: [69198.960489]  [<ffffffff8110e555>] ? filemap_fault+0x485/0x4a0
Aug  4 07:37:20 gaara kernel: [69198.960493]  [<ffffffff8112d114>] ? __do_fault+0x54/0x520
Aug  4 07:37:20 gaara kernel: [69198.960495]  [<ffffffff811309aa>] ? handle_pte_fault+0xfa/0x210
Aug  4 07:37:20 gaara kernel: [69198.960499]  [<ffffffff81177140>] ? pollwake+0x0/0x60
Aug  4 07:37:20 gaara kernel: [69198.960501]  [<ffffffff81131d18>] ? handle_mm_fault+0x158/0x260
Aug  4 07:37:20 gaara kernel: [69198.960505]  [<ffffffff815c6ec7>] ? do_page_fault+0x1a7/0x540
Aug  4 07:37:20 gaara kernel: [69198.960510]  [<ffffffff81013859>] ? read_tsc+0x9/0x20
Aug  4 07:37:20 gaara kernel: [69198.960513]  [<ffffffff81092f31>] ? ktime_get_ts+0xb1/0xf0
Aug  4 07:37:20 gaara kernel: [69198.960516]  [<ffffffff81177702>] ? poll_select_set_timeout+0x82/0x90
Aug  4 07:37:20 gaara kernel: [69198.960518]  [<ffffffff815c3955>] ? page_fault+0x25/0x30
Aug  4 07:37:20 gaara kernel: [69198.960520] Mem-Info:
Aug  4 07:37:20 gaara kernel: [69198.960522] Node 0 DMA per-cpu:
Aug  4 07:37:20 gaara kernel: [69198.960524] CPU    0: hi:    0, btch:   1 usd:   0
Aug  4 07:37:20 gaara kernel: [69198.960526] CPU    1: hi:    0, btch:   1 usd:   0
Aug  4 07:37:20 gaara kernel: [69198.960527] Node 0 DMA32 per-cpu:
Aug  4 07:37:20 gaara kernel: [69198.960529] CPU    0: hi:  186, btch:  31 usd:   0
Aug  4 07:37:20 gaara kernel: [69198.960531] CPU    1: hi:  186, btch:  31 usd:   0
Aug  4 07:37:20 gaara kernel: [69198.960535] active_anon:217521 inactive_anon:2403 isolated_anon:0
Aug  4 07:37:20 gaara kernel: [69198.960536]  active_file:278 inactive_file:429 isolated_file:53
Aug  4 07:37:20 gaara kernel: [69198.960537]  unevictable:13 dirty:4 writeback:0 unstable:0
Aug  4 07:37:20 gaara kernel: [69198.960537]  free:2012 slab_reclaimable:3482 slab_unreclaimable:4975
Aug  4 07:37:20 gaara kernel: [69198.960538]  mapped:4172 shmem:2593 pagetables:6680 bounce:0
Aug  4 07:37:20 gaara kernel: [69198.960540] Node 0 DMA free:4040kB min:60kB low:72kB high:88kB active_anon:10564kB inactive_anon:84kB active_file:12kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15684kB mlocked:0kB dirty:0kB writeback:0kB mapped:104kB shmem:84kB slab_reclaimable:132kB slab_unreclaimable:76kB kernel_stack:56kB pagetables:100kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:968 all_unreclaimable? yes
Aug  4 07:37:20 gaara kernel: [69198.960548] lowmem_reserve[]: 0 993 993 993
Aug  4 07:37:20 gaara kernel: [69198.960551] Node 0 DMA32 free:4008kB min:4000kB low:5000kB high:6000kB active_anon:859520kB inactive_anon:9528kB active_file:1100kB inactive_file:1652kB unevictable:52kB isolated(anon):0kB isolated(file):84kB present:1017572kB mlocked:52kB dirty:16kB writeback:0kB mapped:16584kB shmem:10288kB slab_reclaimable:13796kB slab_unreclaimable:19824kB kernel_stack:2912kB pagetables:26620kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1640 all_unreclaimable? no
Aug  4 07:37:20 gaara kernel: [69198.960560] lowmem_reserve[]: 0 0 0 0
Aug  4 07:37:20 gaara kernel: [69198.960563] Node 0 DMA: 13*4kB 13*8kB 31*16kB 22*32kB 8*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 4044kB
Aug  4 07:37:20 gaara kernel: [69198.960572] Node 0 DMA32: 114*4kB 9*8kB 14*16kB 2*32kB 10*64kB 2*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 4016kB
The problem in Centos is similar, I suddenly got some messages on console saying that there is no memory for process mysqld or squid, and then I have to restart. Both PCs are identical: 1Gb RAM, Celeron E3300 dual core CPU and ASUS P5G41-M LE motherboards. Is there any known incompatibility or problem with such hardware?