Hello, On Wed, Sep 19, 2012 at 03:42:31PM -0400, Vivek Goyal wrote: > On Thu, Sep 20, 2012 at 04:20:42AM +1000, Joseph Glanville wrote: > > Hi, > > > > I booted the machine under bare metal to continue bisecting. > > Thankfully this allowed me to locate the commit that causes the > > problem. > > > > I tested it and I am also noticing the hang. I can see this hang on > dm devices also. > > I suspect this issue is related to bio based drivers. We exit the > bypass mode in blk_init_allocated_queue() and that will be called > only for request based drivers. So for bio based drivers may be > we never exit the bypass mode and this issue is somehow side > affect of that. Can you please trigger sysrq-t and post the result? Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
