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From: Rui Miguel Silva <rmfrfs@gmail.com>
To: "Maria Wikström" <maria@ponstudios.se>
Cc: xin.zhong@intel.com, linux-btrfs@vger.kernel.org,
	johannes.hirte@fem.tu-ilmenau.de
Subject: Re: [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped buffer of the same page
Date: Fri, 28 Jan 2011 18:27:17 +0000	[thread overview]
Message-ID: <201101281827.17306.rmfrfs@gmail.com> (raw)
In-Reply-To: <1296233241.11428.23.camel@mainframe>


On Friday, January 28, 2011 04:47:21 pm Maria Wikstr=C3=B6m 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
> > >=20
> > > Thanks!
> >=20
> > This doesn't fix it for me. At least there is a difference. Whereas=
 the
> > svn process started consuming 100% CPU without any further interact=
ion
> > before, the system just hang now. The svn process starts eating the=
 CPU
> > when I cancel the emerge via ctrl-c. Additional I see a flush-btrfs=
 task
> > now consuming CPU time.
> >=20
> > regards,
> >=20
> >   Johannes
> >=20
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-btr=
fs" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
>=20
> The patch makes the process exit cleanly but complains that there is =
no
> space left. It should be a few GB but it is only a few MB!? I delete =
5GB
> and controls that the space is usable. Try again but this time it alm=
ost
> hangs the system, I can blink the leds and move the mouse but noting
> more.
> I boot 2.6.36.1 and use a snapshot as root, "emerge libgcrypt" compil=
es
> and installs fine. Boots back into 2.6.37 and try again and the syste=
m
> hangs again.
>=20
> // Maria
>=20

Hi Maria,
I had something similar with vanilla 2.6.37 just for running:
cscope -R -b -q

allways hang complety the process, only solution reboot.
I just applied the  btrfs patches that arrived in the main tree between=
 the=20
2.6.37 and 2.6.38-rc1 and they seem to fix the issue.

I did not have the time to try to found which patch fixed the problem.

Hope this could help you.

Cheers,
  //Rui
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  reply	other threads:[~2011-01-28 18:27 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-09  9:30 [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped buffer of the same page Zhong, Xin
2011-01-27 13:09 ` Johannes Hirte
2011-01-27 22:12   ` Maria Wikström
2011-01-28  1:26     ` Zhong, Xin
2011-01-28  2:54       ` Johannes Hirte
2011-01-28  3:53         ` Zhong, Xin
2011-02-01 23:34           ` Johannes Hirte
2011-02-11  4:39             ` Zhong, Xin
2011-02-18 11:31               ` Maria Wikström
2011-02-21  1:51                 ` Zhong, Xin
2011-02-24 14:51                   ` Maria Wikström
2011-02-24 15:55                     ` Mitch Harder
2011-02-24 16:00                       ` Chris Mason
2011-02-24 16:03                         ` Mitch Harder
2011-02-24 16:19                           ` Chris Mason
2011-02-24 16:32                             ` Mitch Harder
     [not found]                               ` <AANLkTinvyb-bTVVignd1KGojvh-QrYCFmCnwYKBsYC_2@mail.gmail.com>
2011-02-25 17:11                                 ` Mitch Harder
2011-02-25 18:43                                   ` Mitch Harder
2011-02-25 19:19                                     ` Chris Mason
2011-02-28  1:46                                     ` [PATCH] btrfs file write debugging patch Chris Mason
2011-02-28  8:56                                       ` Zhong, Xin
2011-02-28 14:02                                         ` Chris Mason
2011-02-28 10:13                                       ` Johannes Hirte
2011-02-28 14:00                                         ` Chris Mason
2011-02-28 16:10                                         ` Josef Bacik
2011-02-28 16:45                                           ` Maria Wikström
2011-02-28 17:47                                             ` Mitch Harder
2011-02-28 20:20                                               ` Mitch Harder
2011-03-01  5:09                                                 ` Mitch Harder
2011-03-01 10:14                                                 ` Zhong, Xin
2011-03-01 11:56                                                   ` Zhong, Xin
2011-03-01 14:54                                                     ` Mitch Harder
2011-03-01 14:51                                                   ` Mitch Harder
2011-03-01 21:56                                                 ` Piotr Szymaniak
2011-02-24 23:35                   ` [PATCH v2]Btrfs: pwrite blocked when writing from the mmaped buffer of the same page Piotr Szymaniak
2011-02-22 22:27               ` Johannes Hirte
2011-02-23  7:27                 ` Zhong, Xin
2011-02-23 21:56                   ` Chris Mason
2011-02-23 23:02                     ` Johannes Hirte
2011-02-24 15:23                       ` Chris Mason
2011-01-28 16:47         ` Maria Wikström
2011-01-28 18:27           ` Rui Miguel Silva [this message]
2011-01-29 15:38             ` Maria Wikström

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