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Re: [Qemu-devel] [PATCH] report read/write errors to IDE guest driver as
From: |
Samuel Thibault |
Subject: |
Re: [Qemu-devel] [PATCH] report read/write errors to IDE guest driver as ECC errorsj |
Date: |
Mon, 11 Aug 2008 18:01:23 +0100 |
User-agent: |
Mutt/1.5.12-2006-07-14 |
Ian Jackson, le Mon 11 Aug 2008 17:47:20 +0100, a écrit :
> > Special ENOSPC handling can be added on top.
> > I agree that pausing the guest is probably best option in that scenario,
>
> I disagree. Most reasonable guests will have special handling for
> write failures on their disks. For example, Linux will (in the
> default setup) remount the fs readonly precisely to prevent
> corruption.
Actually no, see the thread
"ext3 seems to ignore ECC errors"
http://marc.info/?l=linux-kernel&m=121786230719154&w=2
> Pausing the guest denies the guest the ability to take whatever action
> it really wants to.
Sure, but I'm afraid of e.g. guests that would handle it by thinking
"bad sector, let's mark it as such and try another one".
Samuel
[Qemu-devel] Re: [PATCH] report read/write errors to IDE guest driver as ECC errors, Samuel Thibault, 2008/08/06