From: John Stultz <johnstul@us.ibm.com>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Richard Cochran <richardcochran@gmail.com>,
Prarit Bhargava <prarit@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-fsdevel@vger.kernel.org
Subject: Re: BUG: NULL pointer dereference in shmem_evict_inode()
Date: Mon, 20 Aug 2012 18:15:00 -0700 [thread overview]
Message-ID: <5032E114.30503@us.ibm.com> (raw)
In-Reply-To: <5032E021.2030400@linaro.org>
On 08/20/2012 06:10 PM, John Stultz wrote:
> On 08/20/2012 06:04 PM, Fengguang Wu wrote:
>> Hi John,
>>
>> The below oops happens in v3.5..v3.6-rc2 and it's bisected down to
>> commit
>> 2a8c0883c ("time: Move xtime_nsec adjustment underflow handling
>> timekeeping_adjust").
>>
>> However linux-next is working fine. Do you have any fixes not yet
>> sent to Linus?
> Yea, there's a fix pending in tip/timers/urgent
> (4e8b14526ca7fb046a81c94002c1c43b6fdf0e9b) to catch crazy values from
> settimeofday or the cmos clock that might overflow a ktime_t.
>
> Out of curiosity, how are you triggering/reproducing this?
>
Looking at the commit you pointed out, it seems more likely Ingo's fix
(1d17d17484d40f2d5b35c79518597a2b25296996) might be related, but that
should have landed in v3.6-rc2. So I'm not sure.
thanks
-john
next prev parent reply other threads:[~2012-08-21 1:15 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-21 1:04 BUG: NULL pointer dereference in shmem_evict_inode() Fengguang Wu
2012-08-21 1:10 ` John Stultz
2012-08-21 1:15 ` John Stultz [this message]
2012-08-21 1:40 ` Fengguang Wu
2012-08-21 1:49 ` John Stultz
2012-08-21 8:01 ` Fengguang Wu
2012-08-21 1:31 ` Fengguang Wu
2012-08-21 1:46 ` John Stultz
2012-08-21 1:58 ` Fengguang Wu
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