Am 28.06.2011 10:50, schrieb Kevin Wolf: > Am 27.06.2011 18:08, schrieb Andi Kleen: >> On Mon, Jun 27, 2011 at 05:59:41PM +0200, Kevin Wolf wrote: >>> Am 23.06.2011 01:36, schrieb Andi Kleen: >>>> >>>> Running LTP testcases/kernel/io/direct_io/test_dma_thread_diotest7 >>>> causes IO errors in the guest. There are no IO errors on the host. >>>> >>>> Kernel Linux 3.0.0-rc* >>>> Using a standard emulated IDE -hda image. >>> >>> Couldn't reproduce this in a quick test with a random guest I had >>> available. What is your complete qemu command line? Is the problem new >> >> -m 1500M -smp 2 \ >> -hda ~/qemu/suse-11.1-64.img \ >> -kernel arch/x86/boot/bzImage -append "root=/dev/sda1 debug $EXTRA" "$@" >> >> Could it be related to the image? >> >> suse11.3-64.img: Qemu Image, Format: Qcow , Version: 1 , Disk Size could be: >> 83886080 * 256 bytes > > Oh, this is a qcow1 image? Interesting, I didn't expect that people are > still using this format. :-) > > Definitely worth trying a raw image or at least qcow2. The old qcow1 > format driver hasn't been actively maintained for quite a while now. > >>> with the 3.0 RCs or does it also happen with kernels that my existing >>> guests are likely to have in use - say, the F15 kernel? >> >> It happened on older kernels too. >>> >>> I guess with virtio-blk you don't see the problems? >> >> Will try later. > > Ok, thanks. It looked like an IDE problem at first, but now that you > mention it's a qcow1 image, I think it could just as well be an image > format driver bug.
No news is good news? Does it work with a different image format? Kevin