Re: work item migration bug when a CPU is disabled

2014-02-19 Thread Tejun Heo
Hello, Mikulas. On Tue, Feb 18, 2014 at 08:57:11PM -0500, Mikulas Patocka wrote: > Hi Tejun > > Two years ago, I reported a bug in workqueues - a work item that is > supposed to be bound to a specific CPU can be migrated to a different CPU > when the origianl CPU is disabled by writing zero to

work item migration bug when a CPU is disabled

2014-02-18 Thread Mikulas Patocka
Hi Tejun Two years ago, I reported a bug in workqueues - a work item that is supposed to be bound to a specific CPU can be migrated to a different CPU when the origianl CPU is disabled by writing zero to /sys/devices/system/cpu/cpu*/online This causes crashes in dm-crypt, because it assumes th