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Re: [Xen-devel] kernel BUG at drivers/xen/balloon.c:528!


  • To: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
  • From: Łukasz Oleś <lukaszoles@xxxxxxxxx>
  • Date: Mon, 19 Jul 2010 16:54:46 +0200
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 19 Jul 2010 07:55:40 -0700
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W dniu 19 lipca 2010 16:19 użytkownik Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> napisał:
> On Mon, 19 Jul 2010, Łukasz Oleś wrote:
>> >
>> > In any case you should enable CONFIG_XEN_PLATFORM_PCI in your kernel
>> > config, otherwise the pv frontends won't load properly and you are not
>> > going to have any benefits running a PV on HVM kernel.
>> >
>> > I am not sure why you cannot mount your root device, maybe you didn't
>> > specify the correct root= in your kernel command line options?
>>
>> It works fine on bare metal and  ESX. It looks like in initrd system
>> doesn't see any disks.
>>
>> When I enabled option CONFIG_XEN_PLATFORM_PCI I was finally able to
>> boot my sytem. Is this suposed to work in this way?
>>
> but you should be able
> to mount /dev/hd* just fine without CONFIG_XEN_PLATFORM_PCI.

This one is not true on my system.

If something in my initrd fails it launches  busybox then I can run
fdisk -l or cat /proc/partitions and they return nothing.  Whats more
intresting at the system start I can see:

Probing IDE interface ide0...
hda: QEMU HARDDISK, ATA DISK drive
hdb: QEMU HARDDISK, ATA DISK drive
hda: host max PIO4 wanted PIO255(auto-tune) selected PIO2
hda: MWDMA2 mode selected
hdb: host max PIO4 wanted PIO255(auto-tune) selected PIO2
hdb: MWDMA2 mode selected
Probing IDE interface ide1...
hdc: QEMU HARDDISK, ATA DISK drive
hdc: host max PIO4 wanted PIO255(auto-tune) selected PIO2
hdc: MWDMA2 mode selected
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
ide-cd driver 5.00

but later disks disappear. Full log in earlier mail

-- 
Łukasz Oleś

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