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Re: [PATCH] Fix stack corruption in ext2fs server

From: Richard Braun
Subject: Re: [PATCH] Fix stack corruption in ext2fs server
Date: Wed, 4 Jul 2012 13:14:27 +0200
User-agent: Mutt/1.5.20 (2009-06-14)

On Wed, Jul 04, 2012 at 07:58:13AM -0300, Samuel Thibault wrote:
> Richard Braun, le Wed 04 Jul 2012 08:22:13 +0200, a écrit :
> > It's also quite a lot of heap too, and every 5 seconds. We should
> > consider increasing the interval between global syncs to reduce the
> > impact of this potentially heavy operation.
> It would increase the amount of work you loose on crash. Did you measure
> the CPU use that you get with a typical filesystem, by e.g. touching a
> file every 4 seconds to trigger the sync all the time?


> I guess the real fix would be to be better at knowing which inodes need
> to be recorded, and filter on that.

Yes, hence the comment in my patch, but I leave that as an exercice for
another motivated hacker.

Richard Braun

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