From: Eric Sandeen <sandeen@sandeen.net>
To: David Miller <davem@davemloft.net>
Cc: matorola@gmail.com, sparclinux@vger.kernel.org,
linux-xfs@vger.kernel.org
Subject: Re: [sparc64] crc32c misbehave
Date: Thu, 1 Jun 2017 22:34:37 -0500 [thread overview]
Message-ID: <a4400f52-5b16-4cd5-1067-9984e8d21dc6@sandeen.net> (raw)
In-Reply-To: <20170601.233329.698047529665811283.davem@davemloft.net>
On 6/1/17 10:33 PM, David Miller wrote:
> From: Eric Sandeen <sandeen@sandeen.net>
> Date: Thu, 1 Jun 2017 21:10:50 -0500
>
>> On ARM, there was a gcc bug causing similar results - I /think/
>> it was https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293
>>
>> "programs could fail sporadically with this if an interrupt happens at
>> the wrong instant in time and data was written onto the current stack."
>>
>> https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02292.html
>>
>> Maybe totally unrelated; if not, hope it helps. :)
>
> Wow, that looks exactly like what the bug is:
Sweet.
\o/
-Eric
WARNING: multiple messages have this Message-ID (diff)
From: Eric Sandeen <sandeen@sandeen.net>
To: David Miller <davem@davemloft.net>
Cc: matorola@gmail.com, sparclinux@vger.kernel.org,
linux-xfs@vger.kernel.org
Subject: Re: [sparc64] crc32c misbehave
Date: Fri, 02 Jun 2017 03:34:37 +0000 [thread overview]
Message-ID: <a4400f52-5b16-4cd5-1067-9984e8d21dc6@sandeen.net> (raw)
In-Reply-To: <20170601.233329.698047529665811283.davem@davemloft.net>
On 6/1/17 10:33 PM, David Miller wrote:
> From: Eric Sandeen <sandeen@sandeen.net>
> Date: Thu, 1 Jun 2017 21:10:50 -0500
>
>> On ARM, there was a gcc bug causing similar results - I /think/
>> it was https://gcc.gnu.org/bugzilla/show_bug.cgi?idc293
>>
>> "programs could fail sporadically with this if an interrupt happens at
>> the wrong instant in time and data was written onto the current stack."
>>
>> https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02292.html
>>
>> Maybe totally unrelated; if not, hope it helps. :)
>
> Wow, that looks exactly like what the bug is:
Sweet.
\o/
-Eric
next prev parent reply other threads:[~2017-06-02 3:34 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CADxRZqzgaL4ew6PVek3WBsdwo6GcT0ORx=7h+6p0V3NAr8qF+w@mail.gmail.com>
2017-05-31 11:56 ` [sparc64] crc32c misbehave Anatoly Pugachev
2017-05-31 11:56 ` Anatoly Pugachev
2017-05-31 12:12 ` Anatoly Pugachev
2017-05-31 12:12 ` Anatoly Pugachev
2017-05-31 15:53 ` David Miller
2017-05-31 15:53 ` David Miller
2017-05-31 16:03 ` David Miller
2017-05-31 16:03 ` David Miller
2017-05-31 16:19 ` Eric Sandeen
2017-05-31 16:19 ` Eric Sandeen
2017-05-31 16:31 ` Eric Sandeen
2017-05-31 16:31 ` Eric Sandeen
2017-05-31 16:49 ` David Miller
2017-05-31 16:49 ` David Miller
2017-06-01 21:44 ` David Miller
2017-06-01 21:44 ` David Miller
2017-06-02 1:57 ` David Miller
2017-06-02 1:57 ` David Miller
2017-06-02 2:10 ` Eric Sandeen
2017-06-02 2:10 ` Eric Sandeen
2017-06-02 3:33 ` David Miller
2017-06-02 3:33 ` David Miller
2017-06-02 3:34 ` Eric Sandeen [this message]
2017-06-02 3:34 ` Eric Sandeen
2017-06-06 19:05 ` David Miller
2017-06-06 19:05 ` David Miller
2017-06-06 19:09 ` Eric Sandeen
2017-06-06 19:09 ` Eric Sandeen
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