From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [REGRESSION] component: add support for releasing match data
Date: Tue, 26 Jan 2016 17:21:06 +0100 [thread overview]
Message-ID: <56A79CF2.4010200@linux.intel.com> (raw)
In-Reply-To: <20160126144856.GQ10826@n2100.arm.linux.org.uk>
Op 26-01-16 om 15:48 schreef Russell King - ARM Linux:
> On Tue, Jan 26, 2016 at 03:28:34PM +0100, Maarten Lankhorst wrote:
>> Something similar to a segfault. It's trying to call 0x6b6b6b6b6b which
>> is POISON_FREE.
>>
>> mc appears to be freed already, so calling mc->release would jump to
>> invalid data.
> It seems that my devm foo wasn't quite up to scratch. Quite why it
> doesn't show here while testing it (I have patches for the etnaviv
> GPU driver, which I'm regularly inserting/removing) I'm not sure.
>
> Please test this patch - it seems "no worse" for me (in that it didn't
> crash before, and it still doesn't crash.)
That one works, thanks. :)
~Maarten
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WARNING: multiple messages have this Message-ID (diff)
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: LKML <linux-kernel@vger.kernel.org>,
Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Subject: Re: [REGRESSION] component: add support for releasing match data
Date: Tue, 26 Jan 2016 17:21:06 +0100 [thread overview]
Message-ID: <56A79CF2.4010200@linux.intel.com> (raw)
In-Reply-To: <20160126144856.GQ10826@n2100.arm.linux.org.uk>
Op 26-01-16 om 15:48 schreef Russell King - ARM Linux:
> On Tue, Jan 26, 2016 at 03:28:34PM +0100, Maarten Lankhorst wrote:
>> Something similar to a segfault. It's trying to call 0x6b6b6b6b6b which
>> is POISON_FREE.
>>
>> mc appears to be freed already, so calling mc->release would jump to
>> invalid data.
> It seems that my devm foo wasn't quite up to scratch. Quite why it
> doesn't show here while testing it (I have patches for the etnaviv
> GPU driver, which I'm regularly inserting/removing) I'm not sure.
>
> Please test this patch - it seems "no worse" for me (in that it didn't
> crash before, and it still doesn't crash.)
That one works, thanks. :)
~Maarten
next prev parent reply other threads:[~2016-01-26 16:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 13:42 [REGRESSION] component: add support for releasing match data Maarten Lankhorst
2016-01-26 13:42 ` Maarten Lankhorst
2016-01-26 14:15 ` Russell King - ARM Linux
2016-01-26 14:15 ` Russell King - ARM Linux
2016-01-26 14:28 ` Maarten Lankhorst
2016-01-26 14:48 ` Russell King - ARM Linux
2016-01-26 16:21 ` Maarten Lankhorst [this message]
2016-01-26 16:21 ` Maarten Lankhorst
2016-01-26 16:26 ` Daniel Vetter
2016-01-26 16:26 ` [Intel-gfx] " Daniel Vetter
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