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Re: [Qemu-devel] Qemu stucking

From: sonia verma
Subject: Re: [Qemu-devel] Qemu stucking
Date: Thu, 15 May 2014 15:14:49 +0530

Hi Mark

Thanks for the reply.
I'll test and let you know the result soon.

On Thu, May 15, 2014 at 2:36 PM, Mark Cave-Ayland <address@hidden> wrote:
On 15/05/14 06:41, sonia verma wrote:


I'm getting below error when trying to boot the KVM with ethernet
bridging,kvm support and universel TUN enabled by the following command..

/usr/bin/qemu-system-ppc64 -m 512 -nographic -hda

FWIW I think this image will boot with normal qemu-system-ppc too.

cannot manage 'OHCI USB controller' PCI device type 'usb':
 >>  106b 3f (c 3 10)

 >> =============================================================
 >> OpenBIOS 1.0 [Aug 28 2012 05:40]

Wow, that's fairly old...

 >> Configuration device id QEMU version 1 machine id 3
 >> CPUs: 1
 >> Memory: 512M
 >> UUID: 00000000-0000-0000-0000-000000000000
 >> CPU type PowerPC,970FX
Welcome to OpenBIOS v1.0 built on Aug 28 2012 05:40
Second-stage QUIK loader
Welcome to quik. mate is good.
Debian GNU/Linux PowerPCchosen/bootargs =
boot: `
Enter the kernel image name as [device:][partno]/path, where partno is a
number from 0 to 16.  Instead of /path you can type [mm-nn] to specify a
range of disk blocks (512B)
boot: Linux
initrd imagename = /initrd.img, mem_size: 4406840
Starting at 510000, , 10240000
OF stdout device is: /address@hidden/address@hidden/escc@13000/address@hidden
command line: console=ttyS0,9600 console=tty0
memory layout at init:
   alloc_bottom : 00c01000
   alloc_top    : 20000000
   alloc_top_hi : 20000000
   rmo_top      : 20000000
   ram_top      : 20000000
Looking for displays
found display   : /address@hidden/QEMU,address@hidden, opening ... done
copying OF device tree ...
Building dt strings...
Building dt structure...
Device tree strings 0x00c02000 -> 0x00c024f0
Device tree struct  0x00c03000 -> 0x00c05000
Calling quiesce ...
returning from prom_init

The prompt is stuck at init and is not able to proceed even after wating
for 15-20 minutes.

Please help regarding this.

In my testing here, I tend to find that some versions of Linux don't particularly like running in -nographic mode and hangs at the point above. Some kernels even get upset running with a 32/15-bit display and must be forced to 8-bit instead :/

Can you try removing -nographic and instead try one or both of the following:

-g 800x600x32
-g 800x600x8

And if those don't work, try the same image again but with qemu-system-ppc rather than qemu-system-ppc64.



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