linux-kernel - Re: [dma-debug.c - DMA-API] exceeded overlapping ... & sym53c8xx ... tries to free DMA ...

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Date:	Wed, 19 Feb 2014 05:44:38 +0100
From:	poma <pomidorabelisima@...il.com>
To:	Dan Williams <dan.j.williams@...el.com>
CC:	Stanislaw Gruszka <sgruszka@...hat.com>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	IDE/ATA development list <linux-ide@...r.kernel.org>,
	Mailing-List fedora-kernel <kernel@...ts.fedoraproject.org>,
	Joerg Roedel <joro@...tes.org>, Tejun Heo <tj@...nel.org>,
	Gerard Roudier <groudier@...b-internet.fr>,
	Alan Stern <stern@...land.harvard.edu>,
	Josh Boyer <jwboyer@...hat.com>,
	"Justin M. Forbes" <jforbes@...hat.com>,
	Chris Murphy <lists@...orremedies.com>
Subject: Re: [dma-debug.c - DMA-API] exceeded overlapping ... & sym53c8xx
 ... tries to free DMA ...

On 18.02.2014 20:36, Dan Williams wrote:
> On Mon, Feb 17, 2014 at 6:40 AM, poma <pomidorabelisima@...il.com> wrote:
>> On 14.02.2014 19:20, poma wrote:
>>> On 14.02.2014 10:16, Stanislaw Gruszka wrote:
>>>> On Fri, Feb 14, 2014 at 09:52:37AM +0100, poma wrote:
>>>>>
>>>>> Ahoy!
>>>>>
>>>>> Perhaps this is already solved, but I made the effort to test & record
>>>>> all of this, therefore here you are. :)
>>>>>
>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1062833
>>>>
>>>> There is patch posted for this problem
>>>> http://marc.info/?l=linux-kernel&m=139233546223338&w=2
>>>> It is under review currently, if there will be no complains it will be
>>>> applied.
>>>>
>>>> Stanislaw
>>>>
>>>
>>> Thanks!
>>> I have a few questions but the weekend begins, so we'll leave it for
>>> later. :)
>>> See ya!
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=1062833
>>
>> IDE disk - ata_piix - dmesg - OK
>> https://bugzilla.redhat.com/attachment.cgi?id=864085
>>
>> SATA disk - ahci - dmesg - OK
>> https://bugzilla.redhat.com/attachment.cgi?id=864086
>>
>> SCSI disk - sym53c8xx - dmesg - OK
>> https://bugzilla.redhat.com/attachment.cgi?id=864087
>>
>> VirtIO SCSI disk - virtio_scsi - dmesg - OK
>> https://bugzilla.redhat.com/attachment.cgi?id=864088
>>
>> USB disk - usb_storage - dmesg - OK
>> https://bugzilla.redhat.com/attachment.cgi?id=864089
>>
>> Test media - 'boot-fix-dma-debug-overlap-v2.iso',
>> http://goo.gl/UJSfVn
>> sha256sum:
>> 6d6b36fdcb0a0ff662ff6a27048d6d5f35ac211c34439f75bba1d524b3507e82
>> boot-fix-dma-debug-overlap-v2.iso
>>
>> Contains 'kernel-3.14.0-0.rc2.git4.1.fc21.x86_64'
>> based on Rawhide 'kernel-3.14.0-0.rc2.git4.1.fc21'
>> http://koji.fedoraproject.org/koji/buildinfo?buildID=498404
>> with the addition of Dan's 'fix-dma-debug-overlap-v2.patch'
>> "Fix dma debug v2: account for cachelines and read-only mappings in
>> overlap tracking"
>> http://marc.info/?l=linux-netdev&m=139233546723342&q=raw
>>
>>
>> All tests are PASSED.
>>
>>        _
>>       ( \
>>        \ \
>>    ____)  \
>>   (___)    ------
>>  (___)
>>  (___)
>>   (__)----------------
>>
>>
>>
>> poma
> 
> Thanks for the in-depth regression test and report.  Much appreciated!
> 
> --
> Dan
> 

You're welcome. ;)
Thanks for the patch.


poma


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