Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-09 Thread Jiri Olsa
On Sat, Dec 08, 2018 at 09:08:28PM -0500, Vince Weaver wrote: > On Thu, 6 Dec 2018, Jiri Olsa wrote: > > > On Thu, Dec 06, 2018 at 10:35:28AM -0500, Vince Weaver wrote: > > > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > Maybe it is a corruption issue. I had applied my own debug patch that > > >

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-08 Thread Vince Weaver
On Thu, 6 Dec 2018, Jiri Olsa wrote: > On Thu, Dec 06, 2018 at 10:35:28AM -0500, Vince Weaver wrote: > > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > Maybe it is a corruption issue. I had applied my own debug patch that > > would dump some info if data->callchain was NULL. > > > > But my debug

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-06 Thread Jiri Olsa
On Thu, Dec 06, 2018 at 10:35:28AM -0500, Vince Weaver wrote: > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > On Wed, Dec 05, 2018 at 12:11:19PM -0500, Vince Weaver wrote: > > > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > > > > > On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > > > > >

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-06 Thread Jiri Olsa
On Thu, Dec 06, 2018 at 10:35:28AM -0500, Vince Weaver wrote: > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > On Wed, Dec 05, 2018 at 12:11:19PM -0500, Vince Weaver wrote: > > > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > > > > > On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > > > > >

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-06 Thread Vince Weaver
On Wed, 5 Dec 2018, Jiri Olsa wrote: > On Wed, Dec 05, 2018 at 12:11:19PM -0500, Vince Weaver wrote: > > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > > > On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > > > > On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > > > > >

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-06 Thread Vince Weaver
On Wed, 5 Dec 2018, Jiri Olsa wrote: > On Wed, Dec 05, 2018 at 12:11:19PM -0500, Vince Weaver wrote: > > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > > > On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > > > > On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > > > > >

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-05 Thread Jiri Olsa
On Wed, Dec 05, 2018 at 12:11:19PM -0500, Vince Weaver wrote: > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > > > On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > > > > Hello, > > > > > > > > I was able to trigger another

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-05 Thread Jiri Olsa
On Wed, Dec 05, 2018 at 12:11:19PM -0500, Vince Weaver wrote: > On Wed, 5 Dec 2018, Jiri Olsa wrote: > > > On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > > > On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > > > > Hello, > > > > > > > > I was able to trigger another

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-05 Thread Vince Weaver
On Wed, 5 Dec 2018, Jiri Olsa wrote: > On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > > On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > > > Hello, > > > > > > I was able to trigger another oops with the perf_fuzzer with current git. > > > > > > This is 4.20-rc5

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-05 Thread Vince Weaver
On Wed, 5 Dec 2018, Jiri Olsa wrote: > On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > > On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > > > Hello, > > > > > > I was able to trigger another oops with the perf_fuzzer with current git. > > > > > > This is 4.20-rc5

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-05 Thread Jiri Olsa
On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > > Hello, > > > > I was able to trigger another oops with the perf_fuzzer with current git. > > > > This is 4.20-rc5 after the fix for the very similar oops I previously >

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-05 Thread Jiri Olsa
On Wed, Dec 05, 2018 at 01:45:38PM +0100, Jiri Olsa wrote: > On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > > Hello, > > > > I was able to trigger another oops with the perf_fuzzer with current git. > > > > This is 4.20-rc5 after the fix for the very similar oops I previously >

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-05 Thread Jiri Olsa
On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > Hello, > > I was able to trigger another oops with the perf_fuzzer with current git. > > This is 4.20-rc5 after the fix for the very similar oops I previously > reported got committed. > > It seems to be pointing to the same

Re: perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-05 Thread Jiri Olsa
On Tue, Dec 04, 2018 at 10:54:55AM -0500, Vince Weaver wrote: > Hello, > > I was able to trigger another oops with the perf_fuzzer with current git. > > This is 4.20-rc5 after the fix for the very similar oops I previously > reported got committed. > > It seems to be pointing to the same

perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-04 Thread Vince Weaver
Hello, I was able to trigger another oops with the perf_fuzzer with current git. This is 4.20-rc5 after the fix for the very similar oops I previously reported got committed. It seems to be pointing to the same location in the source as before, I guess maybe triggered a different way?

perf: perf_fuzzer triggers GPF in perf_prepare_sample

2018-12-04 Thread Vince Weaver
Hello, I was able to trigger another oops with the perf_fuzzer with current git. This is 4.20-rc5 after the fix for the very similar oops I previously reported got committed. It seems to be pointing to the same location in the source as before, I guess maybe triggered a different way?