linux-kernel - Re: Nasty regression from .27.7 to .27.8: idle samba goes crazy

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Date:	Fri, 12 Dec 2008 19:26:50 +0100
From:	Jan Rekorajski <baggins@...h.mimuw.edu.pl>
To:	Manfred Spraul <manfred@...orfullife.com>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	linux-kernel@...r.kernel.org, stable@...nel.org
Subject: Re: Nasty regression from .27.7 to .27.8: idle samba goes crazy

On Fri, 12 Dec 2008, Jan Rekorajski wrote:

> On Wed, 10 Dec 2008, Manfred Spraul wrote:
> 
> >> On Mon, 8 Dec 2008 23:22:46 +0100
> >> Jan Rekorajski <baggins@...h.mimuw.edu.pl> wrote:
> >>
> >>> I think you can safely rule out NIC, I'm also seeing this behaviour on a
> >>> brand new server with imap hanging in some busy-loop.
> >>> Network card in my case:
> >>> Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 12)
> >>>
> >>> What I observer was one CPU doing 100% system work, and the number of
> >>> timer interrupts went from 1k per second to 4k (for the whole system).
> >>>
> >>>     
> > Could you try the attached patch?
> > It should fix the bug.
> 
> Thank you, I'm currently running 2.6.27.8 with your patch, I'll report
> after 12-24 hours.

top - 19:20:59 up 17:22, 34 users,  load average: 0.34, 0.41, 0.33

So, it seems that your patch cured my problem, as that server couldn't
survive more than 8 hours previously (2-3 was norm).

Jan
-- 
Jan Rekorajski            |  ALL SUSPECTS ARE GUILTY. PERIOD!
baggins<at>mimuw.edu.pl   |  OTHERWISE THEY WOULDN'T BE SUSPECTS, WOULD THEY?
BOFH, MANIAC              |                   -- TROOPS by Kevin Rubio
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