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From: Orjan Friberg <of@flatfrog.com>
To: <linux-mtd@lists.infradead.org>
Subject: Re: JFFS2 oops when writing to two partitions simultaneously
Date: Wed, 25 Jan 2012 20:53:30 +0100	[thread overview]
Message-ID: <4F205DBA.2090103@flatfrog.com> (raw)
In-Reply-To: <4F1F004C.6040501@flatfrog.com>

On 01/24/2012 08:02 PM, Orjan Friberg wrote:
> I'll be trying out various kernel versions next.

I've boiled it down to whether CONFIG_PREEMPT (bug happens) or 
CONFIG_PREEMPT_VOLUNTARY (bug doesn't happen) is selected.  Of course, 
changing that affects a other things like inline spinlocking.

By changing this option, I've made the bug go away in a 2.6.32 and 
2.6.37 setup where it previously happened, and I've made it appear in a 
2.6.39 setup where it previously didn't happen.


I'll be posting this on linux-omap mailing list too.  I don't have any 
other architecture to try this on, and I'm aware that the problem may 
lie in arch-dependent code (spinlock implementation?).

-- 
Orjan Friberg
FlatFrog Laboratories AB

  reply	other threads:[~2012-01-25 19:53 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-24  9:55 JFFS2 oops when writing to two partitions simultaneously Orjan Friberg
2012-01-24 17:15 ` Orjan Friberg
2012-01-24 19:02   ` Orjan Friberg
2012-01-25 19:53     ` Orjan Friberg [this message]
2012-01-25 21:01       ` Orjan Friberg
2012-01-26  8:19         ` Joakim Tjernlund
2012-01-26  9:02           ` Orjan Friberg
2012-01-26  9:53             ` Joakim Tjernlund
2012-01-26  9:02         ` Orjan Friberg
2012-01-26 11:53           ` Joakim Tjernlund
2012-01-26 12:51             ` Orjan Friberg
2012-01-26 13:16               ` Joakim Tjernlund
2012-01-26 14:07                 ` Orjan Friberg
2012-01-26 14:23                   ` Joakim Tjernlund
2012-01-26 14:53                     ` Orjan Friberg
2012-01-26 15:17                       ` Joakim Tjernlund
2012-01-26 15:25                         ` Orjan Friberg
2012-01-26 16:05                           ` Orjan Friberg
2012-01-26 16:17                             ` Joakim Tjernlund
2012-01-26 14:52                   ` Joakim Tjernlund
2012-01-26 15:09                     ` Joakim Tjernlund
2012-01-26 15:18                       ` Orjan Friberg

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