«echo 0 > /proc/sys/kernel/hung_task_timeout_secs» disables this message.
Опять начал зависать сервер. 37 суток без единого нарекания отработал и снова стал валиться в kernel panic несколько раз в день.
В dmesg иногда удаётся отловить:
mptscsih: ioc0: attempting task abort! (sc=ffff88022eadaf00) sd 4:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 04 d8 eb 06 00 00 28 00 mptscsih: ioc0: WARNING - TaskMgmt type=1: IOC Not operational (0xffffffff)! mptscsih: ioc0: WARNING - Issuing HardReset from mptscsih_IssueTaskMgmt!! mptbase: ioc0: Initiating recovery mptbase: ioc0: WARNING - Unexpected doorbell active! INFO: task pdflush:267 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. pdflush D ffff880164968d90 0 267 2 0x00000000 ffff88022ea13650 0000000000000046 ffffffff810824f1 00011220ffffffff ffff8801784104d0 0000000000010c80 000000000000c8e8 ffff88022f8bf080 ffff88022e76c4c0 ffff88022f8bf320 000000012ea135f0 0000000000000002 Call Trace: [] ? 0xffffffff810824f1 [] ? 0xffffffff81147ba1 [] ? 0xffffffff810548c2 [] 0xffffffff81148e15 [] ? 0xffffffff81054a10 [] ? 0xffffffff8113d906 [] 0xffffffff81148f9c [] 0xffffffff8113aec7 [] 0xffffffff8113fdaa [] 0xffffffff81142d55 [] ? 0xffffffff81138786 [] 0xffffffff8113a1a2 [] ? 0xffffffff81192294 [] ? 0xffffffff8138b30c [] ? 0xffffffff8138b3dc [] 0xffffffff81125519 [] ? 0xffffffff8108920e [] 0xffffffff81125a05 [] ? 0xffffffff81088d32 [] ? 0xffffffff81086fc1 [] ? 0xffffffff81126670 [] 0xffffffff811263fd [] ? 0xffffffff810548df [] 0xffffffff81087348 [] 0xffffffff810ca6eb [] ? 0xffffffff810345ca [] ? 0xffffffff811a3eb0 [] 0xffffffff810caeb1 [] 0xffffffff810cb16e [] 0xffffffff810874fc [] ? 0xffffffff81088240 [] 0xffffffff81088346 [] ? 0xffffffff81087440 [] 0xffffffff81054616 [] 0xffffffff8100cd7a [] ? 0xffffffff81054570 [] ? 0xffffffff8100cd70 INFO: task lighttpd:26588 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. lighttpd D ffff88012e411ca8 0 26588 26426 0x00000000 ffff88012e411c18 0000000000000086 ffff88012e411b68 ffffffff811a5817 ffff88017f5a0600 0000000000010c80 000000000000c8e8 ffff8801cd0fddc0 ffff88018ad23e80 ffff8801cd0fe060 000000002f604000 ffff88022e580120 Call Trace: [] ? 0xffffffff811a5817 [] ? 0xffffffff8105c3cc [] 0xffffffff813896b3 [] 0xffffffff810801ad [] 0xffffffff81389a52 [] ? 0xffffffff81080180 [] 0xffffffff81080164 [] ? 0xffffffff81054a10 [] ? 0xffffffff8107ff8b [] 0xffffffff810802e8 [] 0xffffffff81080937 [] ? 0xffffffff810861a7 [] 0xffffffff81093973 [] 0xffffffff810955d9 [] 0xffffffff8102b14f [] 0xffffffff8138ba6f INFO: task lighttpd:26590 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. lighttpd D ffff88020c581b18 0 26590 26426 0x00000000 ffff88020c581a88 0000000000000082 ffff88020c5819d8 ffffffff811a5817 ffff88022eadaf00 0000000000010c80 000000000000c8e8 ffff8801cd0f9900 ffff8801cd0fcb00 ffff8801cd0f9ba0 0000000200000038 ffff88022e580120 Call Trace: [] ? 0xffffffff811a5817 [] ? 0xffffffff8105c3cc [] 0xffffffff813896b3 [] 0xffffffff810801ad [] 0xffffffff81389a52 [] ? 0xffffffff81080180 [] 0xffffffff81080164 [] ? 0xffffffff81054a10 [] ? 0xffffffff8107ff8b [] 0xffffffff810ce5c7 [] ? 0xffffffff810bf4a1 [] ? 0xffffffff810b475f [] ? 0xffffffff810bde8c [] ? 0xffffffff812e6a60 [] ? 0xffffffff810c4d54 [] ? 0xffffffff810cd0e0 [] 0xffffffff810ce789 [] 0xffffffff810cc9f7 [] 0xffffffff810cd2fc [] ? 0xffffffff810cc960 [] 0xffffffff810cd442 [] 0xffffffff810aba17 [] 0xffffffff810abb25 [] ? 0xffffffff810b9e18 [] 0xffffffff8100bd6b echo 0 > /proc/sys/kernel/hung_task_timeout_secs» disables this message.
оно просто уберёт сообщение, но система продолжит виснуть? 🙂 А если дефолтовые тамошние 120 сек. наоборот увеличить?
За что, вообще, этот параметр отвечает? Не нагугливается что-то.