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

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Message-ID: <CAA9_cmd_AcHRUqqPziyd4bbLGcDWGJdneWd_Wk+KEQynhuHj+w@mail.gmail.com>
Date:	Tue, 18 Feb 2014 11:36:53 -0800
From:	Dan Williams <dan.j.williams@...el.com>
To:	poma <pomidorabelisima@...il.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 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
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