Re: Deadlock/high load

2014-06-13 Thread Alin Dobre
On 13/06/14 04:37, Liu Bo wrote: The output of 'btrfs filesystem df' is appreciate, it can help determine if the FS has entered into 'almost full' situation, and that may cause a bug that pages are not marked with writeback tag and lead to processes's endless waiting. I'll send it as soon

Re: Deadlock/high load

2014-06-13 Thread Alin Dobre
On 13/06/14 04:37, Liu Bo wrote: The output of 'btrfs filesystem df' is appreciate, it can help determine if the FS has entered into 'almost full' situation, and that may cause a bug that pages are not marked with writeback tag and lead to processes's endless waiting. The output now (when

Deadlock/high load

2014-06-12 Thread Alin Dobre
Hi all, I have a problem that triggers quite often on our production machines. I don't really know what's triggering this or how to reproduce it, but the machine enters in some sort of deadlock state, where it consumes all the i/o and the load average goes very high in seconds (it even gets to

Re: Deadlock/high load

2014-06-12 Thread Liu Bo
On Thu, Jun 12, 2014 at 04:15:27PM +0100, Alin Dobre wrote: Hi all, I have a problem that triggers quite often on our production machines. I don't really know what's triggering this or how to reproduce it, but the machine enters in some sort of deadlock state, where it consumes all the i/o