11 Apr
2012
11 Apr
'12
9:25 p.m.
On Wed, 11 Apr 2012, m.roth@5-cent.us wrote:
Been seeing that on 6.2, also, though I've not noticed them locking up (the ones that have were in a cluster, and someone could have hosed memory). It got less with the latest kernel, but I'm still seeing them occasionally.
This is most likely a problem due to data arriving too quickly for the VM subsystem to flush dirty pages to disk to keep up; the kernel switches to synchronous mode when the dirty_ratio percentage of memory pages is used. You might try upping your dirty_ratio, or reducing it drastically.
Steve