Excerpts from Mitch Harder's message of 2011-02-25 13:43:37 -0500:
> > The loop is more-or-less following this process (from within the
> > "while (iov_iter_count(&i) > 0) {}" loop):
> >
> > (1) Reserve some space with btrfs_delalloc_reserve_space()
> > (2) Prepare the reserved space with prepare_p
On Fri, Feb 25, 2011 at 11:11 AM, Mitch Harder
wrote:
> On Thu, Feb 24, 2011 at 5:14 PM, Mitch Harder
> wrote:
>> On Thu, Feb 24, 2011 at 10:32 AM, Mitch Harder
>> wrote:
>>> On Thu, Feb 24, 2011 at 10:19 AM, Chris Mason
>>> wrote:
Excerpts from Mitch Harder's message of 2011-02-24 11:03:
On Thu, Feb 24, 2011 at 5:14 PM, Mitch Harder
wrote:
> On Thu, Feb 24, 2011 at 10:32 AM, Mitch Harder
> wrote:
>> On Thu, Feb 24, 2011 at 10:19 AM, Chris Mason wrote:
>>> Excerpts from Mitch Harder's message of 2011-02-24 11:03:07 -0500:
On Thu, Feb 24, 2011 at 10:00 AM, Chris Mason
s.se]
> Sent: Friday, February 18, 2011 7:32 PM
> To: Zhong, Xin
> Cc: Johannes Hirte; linux-btrfs@vger.kernel.org
> Subject: RE: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped
> buffer of the same page
>
>
> Seems like my reply got eaten by the lists spam f
On Thu, Feb 24, 2011 at 10:19 AM, Chris Mason wrote:
> Excerpts from Mitch Harder's message of 2011-02-24 11:03:07 -0500:
>> On Thu, Feb 24, 2011 at 10:00 AM, Chris Mason wrote:
>> > Excerpts from Mitch Harder's message of 2011-02-24 10:55:15 -0500:
>> >> 2011/2/24 Maria Wikström :
>> >> > mån 20
Excerpts from Mitch Harder's message of 2011-02-24 11:03:07 -0500:
> On Thu, Feb 24, 2011 at 10:00 AM, Chris Mason wrote:
> > Excerpts from Mitch Harder's message of 2011-02-24 10:55:15 -0500:
> >> 2011/2/24 Maria Wikström :
> >> > mån 2011-02-21 klockan 09:51 +0800 skrev Zhong, Xin:
> >> >> The b
On Thu, Feb 24, 2011 at 10:00 AM, Chris Mason wrote:
> Excerpts from Mitch Harder's message of 2011-02-24 10:55:15 -0500:
>> 2011/2/24 Maria Wikström :
>> > mån 2011-02-21 klockan 09:51 +0800 skrev Zhong, Xin:
>> >> The backtrace in your attachment looks like a known bug of 2.6.37 which
>> >> hav
Excerpts from Mitch Harder's message of 2011-02-24 10:55:15 -0500:
> 2011/2/24 Maria Wikström :
> > mån 2011-02-21 klockan 09:51 +0800 skrev Zhong, Xin:
> >> The backtrace in your attachment looks like a known bug of 2.6.37 which
> >> have already been fixed in 2.6.38. I have no idea why latest bt
Excerpts from Johannes Hirte's message of 2011-02-23 18:02:44 -0500:
> On Wednesday 23 February 2011 22:56:27 Chris Mason wrote:
> > Excerpts from Zhong, Xin's message of 2011-02-23 02:27:05 -0500:
> > > In the dmesg of rc4, I can see svn hang in shrink_dellalloc and there's
> > > two flush-btrfs t
2011/2/24 Maria Wikström :
> mån 2011-02-21 klockan 09:51 +0800 skrev Zhong, Xin:
>> The backtrace in your attachment looks like a known bug of 2.6.37 which have
>> already been fixed in 2.6.38. I have no idea why latest btrfs still hang in
>> your environment if there's no debug info...
>>
>
> H
Cc: Johannes Hirte; linux-btrfs@vger.kernel.org
> Subject: RE: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped
> buffer of the same page
>
>
> Seems like my reply got eaten by the lists spam filter, so I resend with
> attachment compressed. Should have thought of th
On Wednesday 23 February 2011 22:56:27 Chris Mason wrote:
> Excerpts from Zhong, Xin's message of 2011-02-23 02:27:05 -0500:
> > In the dmesg of rc4, I can see svn hang in shrink_dellalloc and there's
> > two flush-btrfs threads hang there too.
> >
> > Josef, it seems you are the expert in this ar
.tu-ilmenau.de]
> Sent: Wednesday, February 23, 2011 6:27 AM
> To: Zhong, Xin
> Cc: Maria Wikstr\xc3\xb6m; linux-btrfs@vger.kernel.org
> Subject: Re: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped
> buffer of the same page
>
> On Friday 11 February 2011 05:39:39
Sent: Wednesday, February 23, 2011 6:27 AM
To: Zhong, Xin
Cc: Maria Wikström; linux-btrfs@vger.kernel.org
Subject: Re: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped
buffer of the same page
On Friday 11 February 2011 05:39:39 Zhong, Xin wrote:
> Hi,
>
> Could you paste
riday, February 18, 2011 7:32 PM
To: Zhong, Xin
Cc: Johannes Hirte; linux-btrfs@vger.kernel.org
Subject: RE: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped
buffer of the same page
Seems like my reply got eaten by the lists spam filter, so I resend with
attachment compressed. Should
au.de]
> Sent: Wednesday, February 02, 2011 7:35 AM
> To: Zhong, Xin
> Cc: Maria Wikström; linux-btrfs@vger.kernel.org
> Subject: Re: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped
> buffer of the same page
>
> On Friday 28 January 2011 04:53:24 Zhong, Xin wrote:
&
blocked when writing from the mmaped
buffer of the same page
On Friday 28 January 2011 04:53:24 Zhong, Xin wrote:
> Could you describe the steps to recreate it?
> It will be a great help for me to look further. Thanks!
It's a little strange. I have to systems with btrfs, both Gentoo-ba
On Friday 28 January 2011 04:53:24 Zhong, Xin wrote:
> Could you describe the steps to recreate it?
> It will be a great help for me to look further. Thanks!
It's a little strange. I have to systems with btrfs, both Gentoo-based. One is
affected by this bug the other is not. On the affected syste
fre 2011-01-28 klockan 18:27 + skrev Rui Miguel Silva:
> On Friday, January 28, 2011 04:47:21 pm Maria Wikström wrote:
> > fre 2011-01-28 klockan 03:54 +0100 skrev Johannes Hirte:
> > > On Friday 28 January 2011 02:26:43 Zhong, Xin wrote:
> > > > Please try the fix in below link:
> > > > http:
On Friday, January 28, 2011 04:47:21 pm Maria Wikström wrote:
> fre 2011-01-28 klockan 03:54 +0100 skrev Johannes Hirte:
> > On Friday 28 January 2011 02:26:43 Zhong, Xin wrote:
> > > Please try the fix in below link:
> > > http://www.spinics.net/lists/linux-btrfs/msg08051.html
> > >
> > > Thanks
fre 2011-01-28 klockan 03:54 +0100 skrev Johannes Hirte:
> On Friday 28 January 2011 02:26:43 Zhong, Xin wrote:
> > Please try the fix in below link:
> > http://www.spinics.net/lists/linux-btrfs/msg08051.html
> >
> > Thanks!
>
> This doesn't fix it for me. At least there is a difference. Whereas
Subject: Re: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped
buffer of the same page
On Friday 28 January 2011 02:26:43 Zhong, Xin wrote:
> Please try the fix in below link:
> http://www.spinics.net/lists/linux-btrfs/msg08051.html
>
> Thanks!
This doesn't fix it
On Friday 28 January 2011 02:26:43 Zhong, Xin wrote:
> Please try the fix in below link:
> http://www.spinics.net/lists/linux-btrfs/msg08051.html
>
> Thanks!
This doesn't fix it for me. At least there is a difference. Whereas the svn
process started consuming 100% CPU without any further interac
...@fem.tu-ilmenau.de; Zhong, Xin
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped
buffer of the same page
tor 2011-01-27 klockan 14:09 +0100 skrev Johannes Hirte:
> On Thursday 09 December 2010 10:30:14 Zhong, Xin wrote:
> > This p
tor 2011-01-27 klockan 14:09 +0100 skrev Johannes Hirte:
> On Thursday 09 December 2010 10:30:14 Zhong, Xin wrote:
> > This problem is found in meego testing:
> > http://bugs.meego.com/show_bug.cgi?id=6672
> > A file in btrfs is mmaped and the mmaped buffer is passed to pwrite to
> > write to the
On Thursday 09 December 2010 10:30:14 Zhong, Xin wrote:
> This problem is found in meego testing:
> http://bugs.meego.com/show_bug.cgi?id=6672
> A file in btrfs is mmaped and the mmaped buffer is passed to pwrite to
> write to the same page of the same file. In btrfs_file_aio_write(), the
> pages i
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