Re: [Qemu-devel] git-bisect results (was: Re: qemu.git hangs booting Linux after insmod virtio_blk.ko)

[Richard W.M. Jones]

On Fri, Sep 30, 2011 at 05:51:52PM +0100, Richard W.M. Jones wrote:
> On Fri, Sep 30, 2011 at 02:11:48PM +0100, Richard W.M. Jones wrote:
> > 
> > I've not looked into this at all, it's just a report that something
> > seems to be "up".  I will try to git bisect this later if no one spots
> > anything obvious.
> > 
> > The next operation after insmod virtio_blk would be insmod_virtio_net.
> > 
> > Guest kernel is a Fedora kernel, version 3.1.0-0.rc6.git0.3.fc16.x86_64.
> > 
> > The ImExPS/2 message may or may not be coincidental.
> 
> git-bisect points to:
> 
> d67c3f2cd92aed2247bfa8a9da61a902b7b2ff09 is the first bad commit
> commit d67c3f2cd92aed2247bfa8a9da61a902b7b2ff09
> Author: Gerd Hoffmann <address@hidden>
> Date:   Wed Aug 10 17:34:13 2011 +0200
> 
>     seabios: update to master
>     
>     commit 8e301472e324b6d6496d8b4ffc66863e99d7a505
>     
>     user visible changes in seabios:
>       * ahci is enabled by default (and thus in this build).
>       * bootorder support for ahci.
>       * two-pass pci allocator (orders bars by size for better packing).
>     
>     Signed-off-by: Gerd Hoffmann <address@hidden>
> 
> :040000 040000 76eb0c81b76563b55cb2bb5c484ccd48b8cfcded 
> 5ec0d65d3a763a5566fe1f4c86269cad6d671020 M    pc-bios
> :040000 040000 a5a7ea6e297c1e7490b0a2c28a06ce56e5be9449 
> 78adb664d3ea82f1a4dd5ec239887ac5b0168a7f M    roms
> bisect run success
> 
> Rich.
> 
> [...]
> > [    0.248188] Initializing network drop monitor service
> > [    0.402221] Freeing unused kernel memory: 940k freed
> > [    0.403955] Write protecting the kernel read-only data: 10240k
> > [    0.415286] Freeing unused kernel memory: 1260k freed
> > [    0.421039] Freeing unused kernel memory: 1584k freed
> > febootstrap: mounting /proc
> > febootstrap: uptime: 0.42 0.16
> > febootstrap: ext2 mini initrd starting up
> > febootstrap: mounting /sys
> > febootstrap: internal insmod libcrc32c.ko
> > febootstrap: internal insmod crc32c-intel.ko
> > insmod: init_module: crc32c-intel.ko: No such device
> > febootstrap: internal insmod crc-itu-t.ko
> > febootstrap: internal insmod crc-ccitt.ko
> > febootstrap: internal insmod crc7.ko
> > febootstrap: internal insmod crc8.ko
> > febootstrap: internal insmod scsi_transport_spi.ko
> > febootstrap: internal insmod sym53c8xx.ko
> > febootstrap: internal insmod rfkill.ko
> > febootstrap: internal insmod sparse-keymap.ko
> > febootstrap: internal insmod ideapad-laptop.ko
> > insmod: init_module: ideapad-laptop.ko: No such device
> > febootstrap: internal insmod virtio_balloon.ko
> > febootstrap: internal insmod virtio-rng.ko
> > febootstrap: internal insmod virtio_blk.ko
> > [    0.669479] input: ImExPS/2 Generic Explorer Mouse as 
> > /devices/platform/i8042/serio1/input/input1

This bug, or something that looks very much like it, seems to have
turned up again in qemu 1.0.  I've had several reports and have opened
a bug:

https://bugzilla.redhat.com/show_bug.cgi?id=768508

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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