Re: [Xen-devel] HV crash with PVOPS kernel on 32bit

[Keir Fraser <keir@xxxxxxx>]

On 09/11/2010 19:53, "Conny Seidel" <conny.seidel@xxxxxxx> wrote:

> Hi,
> 
> we see a XEN HV panic on a 32bit PVOPS kernel.
> 
> XEN version:  XEN-unstable 22365-0d5f09e3728c 32bit
> PVOPS Kernel: origin/xen/stable commit id: 6c72eadd1 32bit
> used BaseOS:  SLES11 SP1 32bit

You could avoid this issue by specifying iommu=0 on the Xen command line. If
AMD IOMMU support is buggy then we could disable iommu by default?

 -- Keir

> (XEN) Xen BUG at spinlock.c:28
> (XEN) ----[ Xen-4.1-unstable  x86_32p  debug=y  Not tainted ]----
> (XEN) CPU:    0
> (XEN) EIP:    e008:[<ff11cabb>] check_lock+0x3b/0x48
> (XEN) EFLAGS: 00010046   CONTEXT: hypervisor
> (XEN) eax: 00000000   ebx: 00000001   ecx: ff2f9924   edx: 00000000
> (XEN) esi: ff2f9920   edi: 00082000   ebp: ff247da8   esp: ff247da4
> (XEN) cr0: 8005003b   cr4: 000006f0   cr3: 00b66c80   cr2: c18498fc
> (XEN) ds: e010   es: e010   fs: 00d8   gs: 0000   ss: e010   cs: e008
> (XEN) Xen stack trace from esp=ff247da4:
> (XEN)    00000082 ff247db8 ff11cb91 00000001 00000000 ff247e18 ff13d17b
> ff2f9920
> (XEN)    ff10e68f 0000b760 ff114bee 0000000a 00000022 000000a0 ff276c48
> ff2f9920
> (XEN)    000000a0 01016024 00000000 0000002f 00000000 00000002 0000000c
> 00000001
> (XEN)    00000960 01000000 00000022 ff2ef074 00000960 ff247e38 ff131348
> 00000000
> (XEN)    00000022 00000960 ff13140b 00000000 00000022 ff247e68 ff14b306
> 00000000
> (XEN)    00000022 00000960 ff11cb91 fffeffff 00000000 01247e78 00000009
> 00000000
> (XEN)    00000082 ff247e78 ff14b38b 00000009 ffb80500 ff247e98 ff14b3d7
> 00000009
> (XEN)    ff274680 00000046 00000009 ffb80500 ff298fa8 ff247ee8 ff150e3b
> 00000009
> (XEN)    ff14e72d ffb80500 00000000 ff2b0ae4 ecc77e18 ff247ec8 00000009
> ffb80500
> (XEN)    ff298fa8 ffb80500 00000000 00000000 00000000 00000000 00000012
> 00000033
> (XEN)    ecc77ec4 ff247f88 ff106490 ffb66000 00000009 00000000 53472072
> 0d392049
> (XEN)    4950000a 6f662043 00000000 00002a70 c11f5ce6 ffb66000 00000001
> 940a45fe
> (XEN)    00000001 ff247f78 ff11f366 ff274680 00000009 ffb66000 ff282000
> ff28c810
> (XEN)    00000012 ff28207c f8ac3fe8 909090ff 90909090 c390ee90 ff274700
> ff274680
> (XEN)    ff276f60 ff276f64 00000009 00000000 c1749698 ff247fee ffb66000
> 00000020
> (XEN)    ff247fa8 00db803b ff1d247b 00000002 ecc77ec4 deadbeef deadbeef
> deadbeef
> (XEN)    deadbeef c1002407 00000020 00000002 ecc77ec4 ecc77ec4 ffffffda
> ecc30090
> (XEN)    ecc77eb8 00000020 000d0000 c1002407 00000061 00000286 ecc77e84
> 0000e021
> (XEN)    0000007b 0000007b 000000d8 00000000 00000000 ffb66000 00000000
> (XEN) Xen call trace:
> (XEN)    [<ff11cabb>] check_lock+0x3b/0x48
> (XEN)    [<ff11cb91>] _spin_lock_irqsave+0x1b/0x5d
> (XEN)    [<ff13d17b>] amd_iommu_ioapic_update_ire+0x17d/0x252
> (XEN)    [<ff131348>] iommu_update_ire_from_apic+0x46/0x48
> (XEN)    [<ff14b306>] __modify_IO_APIC_irq+0xb5/0x125
> (XEN)    [<ff14b38b>] __unmask_IO_APIC_irq+0x15/0x17
> (XEN)    [<ff14b3d7>] startup_edge_ioapic_irq+0x4a/0x69
> (XEN)    [<ff150e3b>] pirq_guest_bind+0x2d5/0x48a
> (XEN)    [<ff106490>] do_event_channel_op+0x997/0xe97
> (XEN)    [<ff1d247b>] hypercall+0xbb/0xdb
> (XEN)
> (XEN)
> (XEN) ****************************************
> (XEN) Panic on CPU 0:
> (XEN) Xen BUG at spinlock.c:28
> (XEN) ****************************************
> (XEN)
> 
> 
> ##
> ##################################################################
> # Email : conny.seidel@xxxxxxx            GnuPG-Key : 0xA6AB055D #
> # Fingerprint: 17C4 5DB2 7C4C C1C7 1452 8148 F139 7C09 A6AB 055D #
> ##################################################################
> # Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach      #
> # General Managers: Alberto Bozzo, Andrew Bowd                   #
> # Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen #
> #               HRB Nr. 43632                                    #
> ##################################################################
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel