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Re: [Qemu-devel] IDE TRIM bug on at least PPC target

From: Paolo Bonzini
Subject: Re: [Qemu-devel] IDE TRIM bug on at least PPC target
Date: Sat, 18 May 2013 15:39:16 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4

Il 18/05/2013 15:30, Michael Tokarev ha scritto:
> As mentioned in LP:1179104 ( https://bugs.launchpad.net/qemu/+bug/1179104 ),
> there's a segfault bug in qemu process once guest tries to use some TRIM
> command against an IDE device on PPC.  This makes qemu-system-ppc basically
> unusable with any modern distribution, since mke2fs now issues TRIM commands
> during install by default.  I think it is critical enough bug to warrant
> some last-minute hunting/fixing, and it'd be a shame to make a release
> of qemu with this bug.
> That's more or less a JFYI for now, but I don't really know what other info
> is needed, -- I already provided some structures content from a gdb session.

Command line and an image (even something generic like "debian wheezy
PPC installation image at this URL") would help.

The workaround is simply to use virtio.  Did you test SCSI as well?


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