Messages in this thread | | | Date | Thu, 25 Jun 2015 16:11:46 -0400 | From | Sasha Levin <> | Subject | Re: [GIT PULL] tracing: Have filter check for balanced ops |
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On 06/25/2015 12:35 AM, Steven Rostedt wrote: > On Thu, 25 Jun 2015 00:03:02 -0400 > Sasha Levin <sasha.levin@oracle.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
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