RE: [Xen-users] XEN and lvm

["Matthias Pfafferodt" <mapfa@xxxxxx>]

Hello Ian,

>> I use the XEN packages from SuSE 9.3 (xen 2.0.5c). The hard
>> disc has one partition for /boot and dom0/domU on lvm. I can
>> boot into dom0 without problems but if I try to start domU I
>> get the kernel error message listed in messaage.kernel.
>>
>> I added another disk so dom0 is not on lvm. With this
>> configuration XEN is working (I can boot domU without
>> problems). Is this a known issue? Are there solutions?
>
> Hmm, I haven't seen this before, and it looks like a bit of a nasty
> crash. Odd that it's a GPF rather than a page fault. Would you mind
> trying again with a kernel from the xen 2.0.6 release?

Sorry, at the moment I don't have the time to compile a new kernel. Are
there any xen-2.0.6 RPM-packages for SuSE 9.3? I can try to compile a new
kernel in 1-2 weeks.

There is same strange behavior of the lvm backend. If I start Xen dom0 (on
lvm) and restart the computer into linux without XEN lvm can't mount the
volumes. The boot process stops in runlevel 1 and I have to manually mount
all partitions/logical volumes. For the next boot without XEN it works
without problems. If I boot XEN again ... (the same problem).

All partitions/volumes are formated with reiserfs 3.6.

Best regards

Matthias

>
> Thanks,
> Ian
>
> May 22 20:51:35 server kernel: general protection fault: 0000 [#1]
> May 22 20:51:35 server kernel: Modules linked in: bridge subfs usbserial
> serial_core floppy nvram nfsd exportfs ipv6 video1394 ohci1394 raw1394
> ieee1394 capability edd evdev joydev sg st sd_mod sr_mod scsi_mod
> via_agp agpgart i2c_viapro i2c_core epic100 mii uhci_hcd usbcore
> parport_pc lp parport reiserfs ide_cd cdrom ide_disk dm_snapshot dm_mod
> via82cxxx ide_core
> May 22 20:51:35 server kernel: CPU:    0
> May 22 20:51:35 server kernel: EIP:    0061:[<c013cddc>]    Not tainted
> VLI
> May 22 20:51:35 server kernel: EFLAGS: 00011286   (2.6.11.4-20a-xen)
> May 22 20:51:35 server kernel: EIP is at set_page_dirty+0x1c/0x50
> May 22 20:51:35 server kernel: eax: ffffff5c   ebx: 0000b0e0   ecx:
> c100b0e0   edx: c0245630
> May 22 20:51:35 server kernel: esi: 00000000   edi: 00000000   ebp:
> c40a5bb4   esp: c5f59e80
> May 22 20:51:35 server kernel: ds: 007b   es: 007b   ss: 0069
> May 22 20:51:35 server kernel: Process python (pid: 5872,
> threadinfo=c5f58000 task=c737f080)
> May 22 20:51:35 server kernel: Stack: c014496f 00000020 00000020
> 00000000 00000000 01987067 c100b0e0 00000000
> May 22 20:51:35 server kernel:        00001000 b76ed000 c03894e0
> b7aed000 c1dcdb78 b76ee000 c03894e0 c0144abb
> May 22 20:51:35 server kernel:        00001000 00000000 00000000
> 00000000 b76ed000 c1dcdb78 b76ee000 c03894e0
> May 22 20:51:35 server kernel: Call Trace:
> May 22 20:51:35 server kernel:  [<c014496f>] zap_pte_range+0x24f/0x350
> May 22 20:51:35 server kernel:  [<c0144abb>] zap_pmd_range+0x4b/0x70
> May 22 20:51:35 server kernel:  [<c0144b1d>] zap_pud_range+0x3d/0x70
> May 22 20:51:35 server kernel:  [<c0147d17>] vma_link+0x77/0xa0
> May 22 20:51:35 server kernel:  [<c0144bb7>] unmap_page_range+0x67/0x80
> May 22 20:51:35 server kernel:  [<c0144cc4>] unmap_vmas+0xf4/0x230
> May 22 20:51:36 server kernel:  [<c01493f6>] unmap_region+0x76/0xf0
> May 22 20:51:36 server kernel:  [<c01496c6>] do_munmap+0xe6/0x130
> May 22 20:51:36 server kernel:  [<c0149750>] sys_munmap+0x40/0x70
> May 22 20:51:36 server kernel:  [<c0109590>] syscall_call+0x7/0xb
> May 22 20:51:36 server kernel: Code: 40 10 89 d0 e9 16 ff ff ff 8d b6 00
> 00 00 00 89 c1 8b 50 10 8b 00 c1 e8 10 83 e0 01 75 26 f6 c2 01 0f 45 d0
> 85 d2 74 23 8b 42 30 <8b> 50 10 85 d2 74 05 89 c8 ff d2 c3 89 c8 8d b6
> 00 00 00 00 e9
>
>
>

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