Re: [PATCH v2] workqueue: Warn flush attempt using system-wide workqueues

2022-02-23 Thread Tetsuo Handa
On 2022/02/24 6:35, Tejun Heo wrote: > Tetsuo, can you please revert the patch? The patch is incorrect in that it's > triggering also on work item flushes, not just workqueue flushes. OK. I removed these patches from my tree.

Re: [PATCH v2] workqueue: Warn flush attempt using system-wide workqueues

2022-02-23 Thread Tejun Heo
On Wed, Feb 23, 2022 at 10:20:47PM +0100, Marek Szyprowski wrote: > Hi All, > > On 17.02.2022 12:22, Tetsuo Handa wrote: > > syzbot found a circular locking dependency which is caused by flushing > > system_long_wq WQ [1]. Tejun Heo commented that it makes no sense at all > > to call flush_workque

Re: [PATCH v2] workqueue: Warn flush attempt using system-wide workqueues

2022-02-23 Thread Marek Szyprowski
Hi All, On 17.02.2022 12:22, Tetsuo Handa wrote: > syzbot found a circular locking dependency which is caused by flushing > system_long_wq WQ [1]. Tejun Heo commented that it makes no sense at all > to call flush_workqueue() on the shared workqueues as the caller has no > idea what it's gonna end