ALT Linux Bugzilla – Full Text Bug Listing
| Summary: | Ошибка планировщика при блокировке задачи в 2.6.38 | ||||||
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| Product: | Sisyphus | Reporter: | Evgeny Sinelnikov <sin> | ||||
| Component: | kernel-image-std-def | Assignee: | Vitaly Chikunov <vt> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | qa-sisyphus | ||||
| Severity: | normal | ||||||
| Priority: | P3 | CC: | kernelbot, shakirov, vt | ||||
| Version: | unstable | ||||||
| Hardware: | all | ||||||
| OS: | Linux | ||||||
| URL: | https://bugs.launchpad.net/ubuntu/+source/linux/+bug/276476 | ||||||
| Attachments: |
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Created attachment 4869 [details] Лог падения планировщика После обновления до 2.6.38-std-def cсистема стала периодически виснуть. Судя по логам проблема в планировщике задач: Apr 6 21:31:31 base kernel: [181320.324036] INFO: task crond:5949 blocked for more than 120 seconds. Apr 6 21:31:35 base kernel: [181320.324040] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 6 21:31:39 base kernel: [181320.324043] crond D eaf89d94 0 5949 1 0x00000000 Apr 6 21:31:40 base kernel: [181320.324049] eaf89da4 00000082 00000002 eaf89d94 00000000 f0e385ec eaf89d14 c10c0898 Apr 6 21:31:40 base kernel: [181320.324055] f5096df0 c15483c0 efa311f0 c15483c0 efa31478 4b64dd1e 0000a4b9 c15483c0 Apr 6 21:31:40 base kernel: [181320.324061] c15483c0 c15483c0 f44ec040 0000000a 4b643b83 0000a4b9 efa311f0 eaf89d68 Apr 6 21:31:40 base kernel: [181320.324068] Call Trace: Apr 6 21:31:40 base kernel: [181320.324077] [<c10c0898>] ? __inc_zone_page_state+0x18/0x20 Apr 6 21:31:40 base kernel: [181320.324106] [<f7f73d70>] ? reiserfs_get_block+0x0/0x1480 [reiserfs] Apr 6 21:31:40 base kernel: [181320.324111] [<c1063449>] ? ktime_get_ts+0xe9/0x120 Apr 6 21:31:40 base kernel: [181320.324115] [<c13341ba>] io_schedule+0x5a/0xa0 Apr 6 21:31:40 base kernel: [181320.324120] [<c10ad7e5>] sync_page+0x35/0x40 Apr 6 21:31:40 base kernel: [181320.324124] [<c13346f5>] __wait_on_bit+0x45/0x70 Apr 6 21:31:40 base kernel: [181320.324127] [<c10ad7b0>] ? sync_page+0x0/0x40 Apr 6 21:31:40 base kernel: [181320.324131] [<c10ad966>] wait_on_page_bit+0x86/0x90 Apr 6 21:31:40 base kernel: [181320.324136] [<c105a010>] ? wake_bit_function+0x0/0x60 Apr 6 21:31:40 base kernel: [181320.324140] [<c10af7d9>] __lock_page_or_retry+0x49/0x70 Apr 6 21:31:40 base kernel: [181320.324143] [<c10afad6>] filemap_fault+0x2d6/0x3e0 Apr 6 21:31:40 base kernel: [181320.324147] [<c10c4efb>] __do_fault+0x3b/0x490 Apr 6 21:31:40 base kernel: [181320.324152] [<c10c7f63>] handle_pte_fault+0x83/0x910 Apr 6 21:31:40 base kernel: [181320.324162] [<c10b4a35>] ? __free_pages+0x35/0x40 Apr 6 21:31:40 base kernel: [181320.324165] [<c102a476>] ? kmap_atomic_prot+0xd6/0x100 Apr 6 21:31:40 base kernel: [181320.324169] [<c10c88f6>] handle_mm_fault+0x106/0x220 Apr 6 21:31:40 base kernel: [181320.324174] [<c1338ee5>] do_page_fault+0x135/0x420 Apr 6 21:31:40 base kernel: [181320.324179] [<c11b662e>] ? copy_to_user+0x2e/0x50 Apr 6 21:31:40 base kernel: [181320.324191] [<c10fe43d>] ? sys_select+0x3d/0xb0 Apr 6 21:31:40 base kernel: [181320.324194] [<c1338db0>] ? do_page_fault+0x0/0x420 Apr 6 21:31:40 base kernel: [181320.324198] [<c133663e>] error_code+0x5a/0x60 Apr 6 21:31:40 base kernel: [181320.324202] [<c1338db0>] ? do_page_fault+0x0/0x420 Ключевой момент здесь падении, который происходит после записей вида: INFO: task crond:6206 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message