Re: perf_callchain_user oops

2017-03-23 Thread Dave Jones
On Thu, Mar 23, 2017 at 10:40:22AM +0100, Peter Zijlstra wrote: > On Wed, Mar 22, 2017 at 10:58:04PM -0400, Dave Jones wrote: > > Not seen this one before.. > > > > Oops: 0002 [#1] PREEMPT SMP DEBUG_PAGEALLOC > > That's a write fault reaching no_context() afaict. > > > CPU: 1 PID: 24420

Re: perf_callchain_user oops

2017-03-23 Thread Peter Zijlstra
On Wed, Mar 22, 2017 at 10:58:04PM -0400, Dave Jones wrote: > Not seen this one before.. > > Oops: 0002 [#1] PREEMPT SMP DEBUG_PAGEALLOC That's a write fault reaching no_context() afaict. > CPU: 1 PID: 24420 Comm: trinity-main Not tainted 4.11.0-rc3-think+ #3 > task: 8804f4c85440 task.stack

perf_callchain_user oops

2017-03-22 Thread Dave Jones
Not seen this one before.. Oops: 0002 [#1] PREEMPT SMP DEBUG_PAGEALLOC CPU: 1 PID: 24420 Comm: trinity-main Not tainted 4.11.0-rc3-think+ #3 task: 8804f4c85440 task.stack: c90001d38000 RIP: 0010:perf_callchain_user+0x11e/0x220 RSP: :c90001d3ba98 EFLAGS: 00010246 RAX: 88044c59c