Re: A unresponsive file system can hang all I/O in the system on linux-2.6.23-rc6 (dirty_thresh problem?) | KernelTrap

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: Peter Zijlstra <a.p.zijlstra@...>

To: Andrew Morton <akpm@...>

Cc: Trond Myklebust <trond.myklebust@...>, Chakri n <chakriin5@...>, 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 - 2:48 pm

On Fri, 2007-09-28 at 11:49 -0700, Andrew Morton wrote:

quoted text> Do you know where the stalls are occurring?  throttle_vm_writeout(), or via
> direct calls to congestion_wait() from page_alloc.c and vmscan.c?  (running
> sysrq-w five or ten times will probably be enough to determine this)

would it make sense to instrument congestion_wait() callsites with
vmstats?

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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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