On 8 August 2016 at 22:07, Vince Weaver <vincent.wea...@maine.edu> wrote: > On Thu, 4 Aug 2016, Vegard Nossum wrote: >> BTW, this seems to show up slightly more frequently although I've seen >> it a couple of times before without your patch too so it's probably >> unrelated: >> >> WARNING: CPU: 0 PID: 1244 at arch/x86/kernel/hw_breakpoint.c:121 >> arch_install_hw_breakpoint+0x284/0x2f0 >> Can't find any breakpoint slot > > are you using perf_fuzzer to find these bugs or some other tool?
Just using trinity + fault injection, although passing -c perf_event_open hits it a lot faster. > The "Can't find any breakpoint slot" warning dates back years, and there > have been a few attempts to fix it but it's never gone away. I'll just comment it out for now. Thanks, Vegard