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Date: Thu, 25 Jun 2015 16:11:46 -0400 From: Sasha Levin <sasha.levin@...cle.com> To: Steven Rostedt <rostedt@...dmis.org> CC: Linus Torvalds <torvalds@...ux-foundation.org>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Vince Weaver <vincent.weaver@...ne.edu>, Arnaldo Carvalho de Melo <acme@...nel.org> Subject: Re: [GIT PULL] tracing: Have filter check for balanced ops On 06/25/2015 12:35 AM, Steven Rostedt wrote: > On Thu, 25 Jun 2015 00:03:02 -0400 > Sasha Levin <sasha.levin@...cle.com> wrote: > >> On 06/17/2015 08:36 AM, Steven Rostedt wrote: >>> Linus, >>> >>> Vince Weaver reported a warning when he added perf event filters >>> into his fuzzer tests. There's a missing check of balanced >>> operations when parenthesis are used, and this triggers a WARN_ON() >>> and when reading the failure, the filter reports no failure occurred. >> >> Hey Steven, >> >> My fuzzings are hitting the warning added by this patch: > > Yes, Vince said he was able to hit it as well. But the warning itself > is useless if you don't supply what filter was used to trigger it. # echo ">" > events/ext4/ext4_truncate_exit/filter Thanks, Sasha -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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