From: Maneesh Soni <maneesh@in.ibm.com>
To: Ed Tomlinson <tomlins@cam.org>
Cc: Dipankar Sarma <dipankar@in.ibm.com>,
linux-kernel@vger.kernel.org, akpm@digeo.com
Subject: Re: [long]2.5.44-mm3 UP went into unexpected trashing
Date: Thu, 24 Oct 2002 18:16:51 +0530 [thread overview]
Message-ID: <20021024181651.E5311@in.ibm.com> (raw)
In-Reply-To: <20021024114740.78FD37CD3@oscar.casa.dyndns.org>; from tomlins@cam.org on Thu, Oct 24, 2002 at 07:47:39AM -0400
On Thu, Oct 24, 2002 at 07:47:39AM -0400, Ed Tomlinson wrote:
> Maneesh Soni wrote:
>
> > On Thu, Oct 24, 2002 at 08:22:07AM +0000, Andrew Morton wrote:
> >> Andrew Morton wrote:
> >> >
> >> > Hopefully the rcu fix in -mm4 will cure this.
> >>
> >> Oh. It was in -mm3 too. But something went wrong with the
> >> dcache shrinking there.
> >
> > Backing out larger-cpu-masks.patch fixes this in -mm3 so, -mm4 should not
> > give this problem. Basically callbacks are not getting processed due to
> > incorrect rcu_cpu_mask.
>
> Would this affect UP systems? Had the dentry leak on a UP box with 512m
> memory. About 400m ended up in unfreeable dentries...
Actually problem does not appear for SMP (with default NRCPUS) kernel as it getsproper rcu_cpu_mask and for UP it is not correct.
Maneesh
--
Maneesh Soni
IBM Linux Technology Center,
IBM India Software Lab, Bangalore.
Phone: +91-80-5044999 email: maneesh@in.ibm.com
http://lse.sourceforge.net/
prev parent reply other threads:[~2002-10-24 12:29 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-24 7:47 Helge Hafting
2002-10-24 7:58 ` Andrew Morton
2002-10-24 8:17 ` Andrew Morton
2002-10-24 9:35 ` Dipankar Sarma
2002-10-24 11:45 ` Maneesh Soni
2002-10-24 11:47 ` Ed Tomlinson
2002-10-24 12:38 ` Dipankar Sarma
2002-10-24 15:31 ` Dipankar Sarma
2002-10-24 15:46 ` Dipankar Sarma
2002-10-24 23:35 ` Rusty Russell
2002-10-25 12:27 ` Dipankar Sarma
[not found] ` <3DB98823.67FDBEF3@digeo.com>
[not found] ` <20021025235222.A25786@in.ibm.com>
2002-10-26 15:54 ` Dipankar Sarma
2002-10-29 12:53 ` Ed Tomlinson
2002-10-24 12:46 ` Maneesh Soni [this message]
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