hpsa 드라이버가 정지하고 있기 때문에 CPU의 작업 큐 작업이 차단됩니다.
Issue
- "INFO : task foo : 666 blocked for more than 120 seconds" 메시지가 콘솔 또는 로그에 표시됩니다.
- 지연 된 작업이 완료 될 때까지 작업이 정지합니다.
- 서버는 다음 메시지로 중단되거나 패닉 상태가 됩니다. :
INFO: task sshd:6425 blocked for more than 120 seconds.
Not tainted 2.6.32-431.11.2.el6.x86_64 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
sshd D 000000000000000e 0 6425 6418 0x00000080
ffff88032926f768 0000000000000086 0000000000000000 0000000000000000
ffff88032926f848 ffffffff8105a924 ffff88032926f7e8 ffff88032926f758
ffff8803262625f8 ffff88032926ffd8 000000000000fbc8 ffff8803262625f8
Call Trace:
[<ffffffff81528dd5>] schedule_timeout+0x215/0x2e0
[<ffffffff81528a53>] wait_for_common+0x123/0x180
[<ffffffff81528b6d>] wait_for_completion+0x1d/0x20
[<ffffffff81095927>] flush_work+0x77/0xc0
[<ffffffff81095b44>] flush_delayed_work+0x54/0x70
[<ffffffff8133b525>] tty_flush_to_ldisc+0x15/0x20
[<ffffffff81336197>] n_tty_poll+0x67/0x1d0
[<ffffffff81331cda>] tty_poll+0x8a/0xa0
[<ffffffff811a0c92>] do_select+0x392/0x6c0
[<ffffffff811a114a>] core_sys_select+0x18a/0x2c0
[<ffffffff811a14d7>] sys_select+0x47/0x110
[<ffffffff8100b072>] system_call_fastpath+0x16/0x1b
혹은
INFO: task mingetty:5371 blocked for more than 120 seconds.
Not tainted 2.6.32-504.1.3.el6.x86_64 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
mingetty D 0000000000000008 0 5371 1 0x00000080
ffff880439c81b88 0000000000000086 0000000000000000 ffff8804bc549087
ffff880439c81b78 ffffffff812966a0 0000002debbb7c24 0000000100000001
ffffffffffffffff 00000000fffe3a75 ffff88043a08b098 ffff880439c81fd8
Call Trace:
[<ffffffff8152a8e5>] schedule_timeout+0x215/0x2e0
[<ffffffff8152a563>] wait_for_common+0x123/0x180
[<ffffffff8152a67d>] wait_for_completion+0x1d/0x20
[<ffffffff810983b1>] flush_cpu_workqueue+0x61/0x90
[<ffffffff81098e84>] flush_workqueue+0x54/0x80
[<ffffffff81098ec5>] flush_scheduled_work+0x15/0x20
[<ffffffff813383bc>] tty_ldisc_release+0x3c/0x90
[<ffffffff813326db>] tty_release_dev+0x40b/0x5e0
[<ffffffff813328ce>] tty_release+0x1e/0x30
[<ffffffff8118f8d5>] __fput+0xf5/0x210
[<ffffffff8118fa15>] fput+0x25/0x30
[<ffffffff8118ac6d>] filp_close+0x5d/0x90
[<ffffffff8118ad45>] sys_close+0xa5/0x100
[<ffffffff8100b072>] system_call_fastpath+0x16/0x1b
Environment
- Red Hat Enterprise Linux 6.5
- Red Hat Enterprise Linux 6.6
- 다음 패키지에 포함된 HP HPSA 드라이버 버전 3.4.4-1-RH1 혹은 3.4.4-1-RH2 :
- kmod-hpsa-3.4.4_1_RH1-1.el6_5.x86_64
- or kernel-2.6.32-504.el6.x86_64
- or kernel-2.6.32-504.1.3.el6.x86_64
- or kernel-2.6.32-504.3.3.el6.x86_64
- i686 32비트 버전 역시도 영향을 받을 수 있습니다.
- HP Smart Array P220i 혹은 P420i 의 펌웨어 버전이 다음과 같은 경우 : 2.14, 3.04 or 3.22
- 추가적으로 hp-snmp-agents package (이 패키지는 본 이슈를 더 빨리 일으킬 수 있습니다.)
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