Bug#754354: Something holds dentry-related mutex forever in Wheezy amd64 kernel

2014-09-28 Thread Mike Crowe
On Sunday 28 September 2014 at 15:01:21 +0100, Ben Hutchings wrote: > On Sat, 2014-09-27 at 19:41 +0100, Mike Crowe wrote: > > I compiled my own version of the Debian 3.2.60-1+deb7u3 kernel with > > CONFIG_LOCKDEP and panic on hung task enabled. > > > > >From the crash dump: > > > > [25202.156175

Bug#754354: Something holds dentry-related mutex forever in Wheezy amd64 kernel

2014-09-28 Thread Ben Hutchings
On Sat, 2014-09-27 at 19:41 +0100, Mike Crowe wrote: > I compiled my own version of the Debian 3.2.60-1+deb7u3 kernel with > CONFIG_LOCKDEP and panic on hung task enabled. > > >From the crash dump: > > [25202.156175] INFO: task nfsd:3247 blocked for more than 900 seconds. > [25202.162565] "echo 0

Bug#754354: Something holds dentry-related mutex forever in Wheezy amd64 kernel

2014-09-27 Thread Mike Crowe
I compiled my own version of the Debian 3.2.60-1+deb7u3 kernel with CONFIG_LOCKDEP and panic on hung task enabled. >From the crash dump: [25202.156175] INFO: task nfsd:3247 blocked for more than 900 seconds. [25202.162565] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

Bug#754354: Something holds dentry-related mutex forever in Wheezy amd64 kernel

2014-07-30 Thread Mike Crowe
On Monday 21 July 2014 at 15:01:31 +0100, Mike Crowe wrote: > It is possible that I'm seeing the same problem. Our AMD Opteron 4386 (16 > cores) machine is also getting stuck with lots of hung tasks. [snip] > PID: 4087 TASK: 88040ea63840 CPU: 2 COMMAND: "nfsd" > #0 [8804034b9c00] __

Bug#754354: Something holds dentry-related mutex forever in Wheezy amd64 kernel

2014-07-21 Thread Mike Crowe
It is possible that I'm seeing the same problem. Our AMD Opteron 4386 (16 cores) machine is also getting stuck with lots of hung tasks. Although it responds to ping, and even a KVM virtual machine running on it appears to continue working correctly, the host itself is locked up. This happens once