From: Vince Weaver <vincent.weaver@maine.edu>
To: Ingo Molnar <mingo@kernel.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>,
Peter Zijlstra <peterz@infradead.org>,
Huang Rui <ray.huang@amd.com>,
linux-kernel@vger.kernel.org, Borislav Petkov <bp@suse.de>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: Re: perf: fuzzer crashes immediately on AMD system
Date: Wed, 24 Aug 2016 09:20:24 -0400 (EDT) [thread overview]
Message-ID: <alpine.DEB.2.20.1608240917580.2070@macbook-air> (raw)
In-Reply-To: <20160824091923.GB4340@gmail.com>
On Wed, 24 Aug 2016, Ingo Molnar wrote:
> If there's no progress finding the root cause I'd be happy to exchange a crash for
> a leak ...
It's actually a crash of the program doing the perf_event_open() call, not
a crash of the system (at least in my experience).
However, it's possible that if you have bad luck and if the kfree'd space
is reused with just the right combination of values you could potentially
end up crashing the system.
Vince
prev parent reply other threads:[~2016-08-24 13:20 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-18 14:32 Vince Weaver
2016-08-18 14:46 ` Vince Weaver
2016-08-19 10:01 ` Peter Zijlstra
2016-08-19 10:56 ` Peter Zijlstra
2016-08-19 15:03 ` Vince Weaver
2016-08-19 16:38 ` Vince Weaver
2016-08-20 4:44 ` Vince Weaver
2016-08-22 11:16 ` Huang Rui
2016-08-23 1:02 ` Vince Weaver
2016-08-23 2:54 ` Vince Weaver
2016-08-23 8:45 ` Peter Zijlstra
2016-08-23 11:53 ` Vince Weaver
2016-08-24 9:19 ` Ingo Molnar
2016-08-24 13:20 ` Vince Weaver [this message]
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