From: Sasha Levin <sasha.levin@oracle.com>
To: "Theodore Ts'o" <tytso@mit.edu>,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
Peter Zijlstra <peterz@infradead.org>,
"H. Peter Anvin" <hpa@linux.intel.com>,
Ingo Molnar <mingo@kernel.org>,
acme@ghostprotocols.net, LKML <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Dave Jones <davej@redhat.com>,
price@mit.edu
Subject: Re: BUG_ON drivers/char/random.c:986 (Was: perf: use after free in perf_remove_from_context)
Date: Sat, 17 May 2014 12:24:32 -0400 [thread overview]
Message-ID: <53778D40.5020203@oracle.com> (raw)
In-Reply-To: <20140517021840.GA5513@thunk.org>
On 05/16/2014 10:18 PM, Theodore Ts'o wrote:
> On Fri, May 16, 2014 at 05:46:22PM -0700, Hannes Frederic Sowa wrote:
>> > This should do the trick:
>> > dd if=/dev/urandom of=/dev/zero bs=67108707
>> >
>> > I suspect ee1de406ba6eb1 ("random: simplify accounting logic") as the
>> > culprit.
> Yep, that it's it. Thanks for noticing this so quickly! I'll push
> the following patch to Linus.
Peter, could you describe the infrastructure you're running on? I don't
think Dave or myself have ever hit this issue, and I wonder what made you
stumble on it.
Thanks,
Sasha
next prev parent reply other threads:[~2014-05-17 16:25 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-12 15:42 perf: use after free in perf_remove_from_context Sasha Levin
2014-05-14 16:29 ` Peter Zijlstra
2014-05-14 16:32 ` Sasha Levin
2014-05-14 16:35 ` Peter Zijlstra
2014-05-14 16:38 ` Sasha Levin
2014-05-14 16:52 ` Peter Zijlstra
2014-05-14 17:09 ` Sasha Levin
2014-05-14 17:20 ` Dave Jones
2014-05-14 18:37 ` Peter Zijlstra
2014-05-28 23:52 ` Sasha Levin
2014-05-29 2:31 ` Sasha Levin
2014-05-29 7:59 ` Peter Zijlstra
2014-05-29 7:57 ` Peter Zijlstra
2014-05-29 14:47 ` Sasha Levin
2014-05-29 15:07 ` Peter Zijlstra
2014-05-29 16:44 ` Sasha Levin
2014-05-29 16:50 ` Peter Zijlstra
2014-05-29 16:52 ` Sasha Levin
2014-05-29 17:00 ` Peter Zijlstra
2014-05-29 22:37 ` Sasha Levin
2014-06-05 14:38 ` [tip:perf/core] perf: Fix use after free in perf_remove_from_context() tip-bot for Peter Zijlstra
2014-05-15 18:11 ` eventpoll __list_del_entry corruption (was: perf: use after free in perf_remove_from_context) Peter Zijlstra
2014-05-15 18:16 ` eventpoll __list_del_entry corruption Sasha Levin
2014-06-16 9:44 ` Eric Wong
2014-05-21 8:25 ` BUG at /usr/src/linux-2.6/mm/filemap.c:202 (was: perf: use after free in perf_remove_from_context) Peter Zijlstra
2014-05-21 13:02 ` BUG at /usr/src/linux-2.6/mm/filemap.c:202 Sasha Levin
2014-06-03 15:07 ` eventpoll __list_del_entry corruption Jason Baron
2014-06-03 15:11 ` Peter Zijlstra
2014-05-16 15:34 ` BUG_ON drivers/char/random.c:986 (Was: perf: use after free in perf_remove_from_context) Peter Zijlstra
2014-05-16 16:06 ` H. Peter Anvin
2014-05-16 16:21 ` Peter Zijlstra
2014-05-17 0:46 ` Hannes Frederic Sowa
2014-05-17 2:18 ` Theodore Ts'o
2014-05-17 16:24 ` Sasha Levin [this message]
2014-05-17 17:00 ` Peter Zijlstra
2014-07-15 4:36 ` BUG_ON drivers/char/random.c:986 Dave Jones
2014-07-15 20:29 ` Hannes Frederic Sowa
2014-07-16 8:33 ` Theodore Ts'o
2014-07-16 19:18 ` [PATCH] random: check for increase of entropy_count because of signed conversion Hannes Frederic Sowa
2014-07-18 21:25 ` Theodore Ts'o
2014-07-18 21:43 ` Hannes Frederic Sowa
2014-07-18 21:50 ` Theodore Ts'o
2014-07-18 22:07 ` Theodore Ts'o
2014-07-18 23:35 ` Hannes Frederic Sowa
2014-07-19 5:42 ` Theodore Ts'o
2014-07-19 6:20 ` Hannes Frederic Sowa
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