On 09/04/2015 01:36 PM, Tejun Heo wrote: > Hello, > > On Fri, Sep 04, 2015 at 01:20:42PM -0400, Sasha Levin wrote: >>> Do you have backtrace of this happening? There's a bug in cleanup >>> path which causes oops (patch is being tested) and this may just be a >>> symptom of the same problem. >> >> [268773.335933] kasan: GPF could be caused by NULL-ptr deref or user memory >> accessgeneral protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN >> [268773.337986] Modules linked in: >> [268773.338470] CPU: 3 PID: 12812 Comm: trinity-c10 Not tainted >> 4.2.0-next-20150902-sasha-00045-gd0866f3-dirty #2528 >> [268773.339903] task: ffff8802f56e4000 ti: ffff880322e10000 task.ti: >> ffff880322e10000 >> [268773.340943] RIP: 0010:[<ffffffffaa8b8284>] [<ffffffffaa8b8284>] >> trace_event_raw_event_writeback_dirty_page+0x1b4/0x420 > > Hmm.... did this happen while or around a device removal event? I'm > trying to figure out whether an unregistered bdi can have inodes.
I ran some more tests, and I didn't see device removal events close to it. Thanks, Sasha -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
