Mire való a hung_task_timeout_secs ?

Sziasztok,

Meg tudja mondani valaki mire való a /proc/sys/kernel/hung_task_timeout_secs ?

Mi történik ilyenkor?


Aug 2 02:05:04 localhost kernel: [10057716.044272] INFO: task md1_resync:512 blocked for more than 120 seconds.
Aug 2 02:05:04 localhost kernel: [10057716.044318] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Aug 2 02:05:04 localhost kernel: [10057716.044346] md1_resync D e0e84a9c 0 512 2
Aug 2 02:05:04 localhost kernel: [10057716.044372] dcfe71c0 00000046 312e3333 e0e84a9c 0023b7b9 dcfe734c c13c9fa0 00000000
Aug 2 02:05:04 localhost kernel: [10057716.044419] 36616336 00000003 000009ce 00000000 dc7b800c dc041e00 dbc05f8c dc0c4de8
Aug 2 02:05:04 localhost kernel: [10057716.044465] dc7b800c dc041e00 dbc05f8c dc0c4de8 de85d6ad de862e84 de862e5f dc7b800c
Aug 2 02:05:04 localhost kernel: [10057716.044514] Call Trace:
Aug 2 02:05:04 localhost kernel: [10057716.044644] [] md_do_sync+0x238/0xa84 [md_mod]
Aug 2 02:05:04 localhost kernel: [10057716.044753] [] getnstimeofday+0x37/0xbc
Aug 2 02:05:04 localhost kernel: [10057716.044810] [] enqueue_hrtimer+0xc9/0xd4
Aug 2 02:05:04 localhost kernel: [10057716.044854] [] hrtimer_start+0xf7/0x110
Aug 2 02:05:04 localhost kernel: [10057716.046267] [] hrtick_set+0x8f/0xd8
Aug 2 02:05:04 localhost kernel: [10057716.046320] [] autoremove_wake_function+0x0/0x2d
Aug 2 02:05:04 localhost kernel: [10057716.046363] [] md_thread+0x0/0xcd [md_mod]
Aug 2 02:05:04 localhost kernel: [10057716.046401] [] md_thread+0xb7/0xcd [md_mod]
Aug 2 02:05:04 localhost kernel: [10057716.046436] [] complete+0x28/0x36
Aug 2 02:05:04 localhost kernel: [10057716.046477] [] md_thread+0x0/0xcd [md_mod]
Aug 2 02:05:04 localhost kernel: [10057716.046507] [] kthread+0x38/0x5d
Aug 2 02:05:04 localhost kernel: [10057716.046528] [] kthread+0x0/0x5d
Aug 2 02:05:04 localhost kernel: [10057716.046554] [] kernel_thread_helper+0x7/0x10
Aug 2 02:05:04 localhost kernel: [10057716.046606] =======================