Steve Thompson wrote: > On Wed, 11 Apr 2012, m.roth at 5-cent.us wrote: > >> Steve Thompson wrote: >>> On Wed, 11 Apr 2012, m.roth at 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. >>> >> But mine are *not* VMs. > > VM = Virtual Memory. Sorry, VM (virtual memory) is *so* different than VM (virtual machine), and in such a different context, dunno how I could have confused the two.... <g> I'll try that, though IIRC, I've seen blocked tasks with someone running emacs. mark