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Re: A unresponsive file system can hang all I/O in the system on linux-2.6.23-rc6 (dirty_thresh problem?)
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From:
Chakri n <chakriin5@...>
To: Peter Zijlstra <a.p.zijlstra@...>
Cc: Andrew Morton <akpm@...>, linux-pm <linux-pm@...>, lkml <linux-kernel@...>, <nfs@...>
Subject:
Re: A unresponsive file system can hang all I/O in the system on linux-2.6.23-rc6 (dirty_thresh problem?)
Date: Friday, September 28, 2007 - 5:20 am
It's 2.6.23-rc6. Thanks --Chakri On 9/28/07, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
quoted text
> On Fri, 2007-09-28 at 02:01 -0700, Chakri n wrote: > > Thanks for explaining the adaptive logic. > > > > > However other devices will at that moment try to maintain a limit of 0, > > > which ends up being similar to a sync mount. > > > > > > So they'll not get stuck, but they will be slow. > > > > > > > > > > Sync should be ok, when the situation is bad like this and some one > > hijacked all the buffers. > > > > But, I see my simple dd to write 10blocks on local disk never > > completes even after 10 minutes. > > > > [root@h46 ~]# dd if=/dev/zero of=/tmp/x count=10 > > > > I think the process is completely stuck and is not progressing at all. > > > > Is something going wrong in the calculations where it does not fall > > back to sync mode. > > What kernel is that? > > >
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Messages in current thread:
A unresponsive file system can hang all I/O in the system on...
, Chakri n
, (Fri Sep 28, 2:32 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Fengguang Wu
, (Sat Sep 29, 7:04 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Chuck Ebbert
, (Mon Oct 1, 11:57 am)
[PATCH] writeback: avoid possible balance_dirty_pages() lock...
, Fengguang Wu
, (Mon Oct 1, 10:00 pm)
Re: [PATCH] writeback: avoid possible balance_dirty_pages() ...
, Andrew Morton
, (Mon Oct 1, 10:14 pm)
Re: [PATCH] writeback: avoid possible balance_dirty_pages() ...
, Fengguang Wu
, (Tue Oct 2, 8:13 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Sat Sep 29, 7:48 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Fengguang Wu
, (Sat Sep 29, 8:28 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Sat Sep 29, 10:43 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Andrew Morton
, (Fri Sep 28, 2:50 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Daniel Phillips
, (Fri Sep 28, 8:46 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Trond Myklebust
, (Fri Sep 28, 1:00 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Andrew Morton
, (Fri Sep 28, 2:49 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Trond Myklebust
, (Fri Sep 28, 3:16 pm)
KDB?
, Daniel Phillips
, (Fri Sep 28, 9:51 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Andrew Morton
, (Fri Sep 28, 3:26 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Trond Myklebust
, (Fri Sep 28, 3:52 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Daniel Phillips
, (Fri Sep 28, 4:24 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Andrew Morton
, (Fri Sep 28, 4:10 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Trond Myklebust
, (Fri Sep 28, 4:32 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Andrew Morton
, (Fri Sep 28, 4:43 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Chakri n
, (Fri Sep 28, 5:36 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Chakri n
, (Fri Sep 28, 7:33 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Fri Sep 28, 2:48 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Andrew Morton
, (Fri Sep 28, 3:16 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Tue Oct 2, 9:36 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Randy Dunlap
, (Tue Oct 2, 11:42 am)
[PATCH] lockstat: documentation
, Peter Zijlstra
, (Wed Oct 3, 5:28 am)
Re: [PATCH] lockstat: documentation
, Ingo Molnar
, (Wed Oct 3, 5:35 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Jonathan Corbet
, (Fri Sep 28, 9:28 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Andrew Morton
, (Fri Sep 28, 2:04 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Fri Sep 28, 9:35 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Daniel Phillips
, (Fri Sep 28, 9:27 pm)
Re: [linux-pm] Re: A unresponsive file system can hang all I...
, Alan Stern
, (Fri Sep 28, 12:45 pm)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Fri Sep 28, 2:59 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Chakri n
, (Fri Sep 28, 4:27 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Fri Sep 28, 4:40 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Chakri n
, (Fri Sep 28, 5:01 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Fri Sep 28, 5:12 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Chakri n
, (Fri Sep 28, 5:20 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Peter Zijlstra
, (Fri Sep 28, 5:23 am)
Re: A unresponsive file system can hang all I/O in the syste...
, Chakri n
, (Fri Sep 28, 6:36 am)
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