On 02/17/2012 10:22 PM, Alan Stern wrote: > This patch (as1519) fixes a bug in the block layer's disk-events > polling. The polling is done by a work routine queued on the > system_nrt_wq workqueue. Since that workqueue isn't freezable, the > polling continues even in the middle of a system sleep transition. > > Obviously, polling a suspended drive for media changes and such isn't > a good thing to do; in the case of USB mass-storage devices it can > lead to real problems requiring device resets and even re-enumeration. > > The patch fixes things by creating a new system-wide, non-reentrant, > freezable workqueue and using it for disk-events polling. Thanks Alan, picked up. -- Jens Axboe _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
