[Bug 276476] Re: INFO: task blocked for more than 120 seconds causes system freeze

unikob unikob at gmail.com
Sat Oct 11 21:34:30 UTC 2008


Changed to linux (kernel) as it appears it is not a nspluginwrapper bug
afterall.

** Summary changed:

- npviewer.bin segfaults, causes havoc, forces to reboot
+ INFO: task blocked for more than 120 seconds causes system freeze

** Description changed:

- Npviewer segfaults when visiting a website on Firefox with flash
- content. After that thunderbird, firefox stop responding and they have
- to be force quitted. Their processes (thunderbird.bin and firefox) can't
- be killed with kill -9 or killall. After a while these messages turn up
- on terminal:
+ 
+ This appears to be a kernel bug related to IO. Although everytime I get this I've got Firefox open, latest incident happened when I had mp3gain running through my music collection.
+ 
+ 
+ Original description:
+ Npviewer segfaults when visiting a website on Firefox with flash content. After that thunderbird, firefox stop responding and they have to be force quitted. Their processes (thunderbird.bin and firefox) can't be killed with kill -9 or killall. After a while these messages turn up on terminal: 
  
  (taken from kern.log)
  Sep 30 22:37:19 ubuntu kernel: [19808.392380] INFO: task thunderbird-bin:28288 blocked for more than 120 seconds.
  Sep 30 22:37:19 ubuntu kernel: [19808.392418] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
  
  I have to reboot using Sysreq + reisub.
  
  This happens at least once a day on fully updated (as of 30.09.2008)
  Intrebid Ibex  on x86_64.
  
  uname -a: Linux ubuntu 2.6.27-4-generic #1 SMP Wed Sep 24 01:29:06 UTC
  2008 x86_64 GNU/Linux
  
  Attached kern.log with relevant bits of two separate occasions.

** Changed in: linux (Ubuntu)
Sourcepackagename: nspluginwrapper => linux

-- 
INFO: task blocked for more than 120 seconds causes system freeze
https://bugs.launchpad.net/bugs/276476
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