Re: [Qemu-devel] [PATCH] report read/write errors to IDE guest driver as ECC errorsj

[Samuel Thibault]

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