Created attachment 665019 [details]
qemu-system-ppc64 -M pseries -m 1024 -nographic -net nic -net user -cdrom /dev/sr0 -boot d gustavold.img
Description of problem:
Installation begins but eventually it gets stuck. Attached the output of an install attempt passing the boot parameters rdshell rdinitdebug rd.break.
The qemu command line used:
# qemu-img -f raw gustavold.img 5G
# qemu-system-ppc64 -M pseries -m 1024 -nographic -net nic -net user -cdrom /dev/sr0 -boot d gustavold.img
Install media used:
Version-Release number of selected component (if applicable):
can you try with updates qemu?
yum --enablerepo=updates-testing update qemu\*
tbh RH doesn't have much qemu PPC expertise, that's you guys (IBM) :)
benh, dgibson, any thoughts?
Hrm. Not a lot to go on there. What is the host system? Also F18?
Host system is F18.
I tried qemu-1.2.2-1.fc18.ppc64 and it also gets stuck the same way.
Modifying how much log to be printed (rdinitdebug rdudevdebug rdnetdebug) changes how far it gets, but it gets stuck nonetheless. These logs are not very helpful though.
I was able to get to the dracut shell passing rd.break=pre-pivot, however the console doesn't respond (can't type anything).
(In reply to comment #3)
> Host system is F18.
> I tried qemu-1.2.2-1.fc18.ppc64 and it also gets stuck the same way.
> Modifying how much log to be printed (rdinitdebug rdudevdebug rdnetdebug)
> changes how far it gets, but it gets stuck nonetheless. These logs are not
> very helpful though.
"rd.shell rd.debug log_buf_len=10M systemd.log_target=kmsg systemd.log_level=debug"
(In reply to comment #4)
> (In reply to comment #3)
> > Host system is F18.
> > I tried qemu-1.2.2-1.fc18.ppc64 and it also gets stuck the same way.
> > Modifying how much log to be printed (rdinitdebug rdudevdebug rdnetdebug)
> > changes how far it gets, but it gets stuck nonetheless. These logs are not
> > very helpful though.
> Try this:
> "rd.shell rd.debug log_buf_len=10M systemd.log_target=kmsg
bug does not seem to be in the initramfs.
"log_buf_len=10M systemd.log_target=kmsg systemd.log_level=debug loglevel=7"
I think I know what is happening here - I've recently hit problems running F18 under qemu full emulation that could also explain this.
It appears that at least some packages in F18 have been compiled with options which can generate VSX instructions. These are not currently emulated in qemu and it's quite a big job to add the necessary support. We do supply the device tree parameter informing the kernel that VSX is not supported, but that doesn't help when VSX instructions are compiled into userspace.
If I'm correct about this, it also means that F18 will be broken on PowerPC 970 (aka G5) machines.
This is a regression (if unintended) from F17.
If you think my test here is correct:
then you would conclude this bug has been fixed in Fedora 19.
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