Re: perf: perf_fuzzer WARNING: ring_buffer.c:546 __rb_free_aux

2016-11-17 Thread Vince Weaver
On Thu, 10 Nov 2016, Alexander Shishkin wrote: > Yeah, this really shouldn't be happening. How reproducible is this? Any > clues that may help me reproduce it? I hit this again on the skylake machine, but it takes a while (many days of fuzzing). Also maybe related, it hits this WARN_ONCE in perf

Re: perf: perf_fuzzer WARNING: ring_buffer.c:546 __rb_free_aux

2016-11-10 Thread Vince Weaver
On Thu, 10 Nov 2016, Alexander Shishkin wrote: > Yeah, this really shouldn't be happening. How reproducible is this? Any > clues that may help me reproduce it? I'll see if I can reproduce it. I'm currently stuck on most of my machines as current git since 4.9-rc1 won't boot due to the kbuild/mod

Re: perf: perf_fuzzer WARNING: ring_buffer.c:546 __rb_free_aux

2016-11-10 Thread Alexander Shishkin
Vince Weaver writes: > I thought we had sorted all the AUX issues, though interestingly this is > on a core2 system. > > this is: > > static void __rb_free_aux(struct ring_buffer *rb) > { > > /* > * Should never happen, the last reference should be dropped from >