RE: [Xen-users] xen-unstable amd64 troubles

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

Please can you try figuring out how to repro.

Also, in bug reports please aditionally state:
 * your changeset number (please always make sure you're using the
latest)
 * whether you have modified the kernel config in any way
 * how much memory your machine has, how much each of the domains have

I think this issue may already be on bugzilla. Would like to get it
nailed, but we need more info to repro.

Thanks,
Ian


> I'm using xen-unstable with all the latest changesets and 
> some domains on it on a amd64 machine.
> Today my domains crashed with the following output:
> 
> Unable to handle kernel paging request at ffff88000e928700 RIP:
> <ffffffff803988ca>{netif_poll+1354}
> PGD 788067 PUD 789067 PMD 7fe067 PTE 0
> Oops: 0002 [1]
> CPU 0
> Pid: 0, comm: swapper Not tainted 2.6.12.6-xenU-br14
> RIP: e030:[<ffffffff803988ca>] <ffffffff803988ca>{netif_poll+1354}
> RSP: e02b:ffffffff806d3d98  EFLAGS: 00010212
> RAX: ffff88000e928700 RBX: ffff88000e909940 RCX: ffff88000e928058
> RDX: ffff88000e928700 RSI: ffff88000e9091c0 RDI: ffff88000e909940
> RBP: ffff88000e909940 R08: 0000000000feffff R09: 0000000000000017
> R10: ffff88000f312250 R11: 0000000000000001 R12: ffff8800016d4360
> R13: ffff88000167c550 R14: 00000000000000c0 R15: 0000000000000000
> FS:  0000000000505ae0(0000) GS:ffffffff806c0080(0000) 
> knlGS:ffffffff80600400
> CS:  e033 DS: 0000 ES: 0000
> Process swapper (pid: 0, threadinfo ffffffff806d2000, task 
> ffffffff8057d500)
> Stack: 0000000180117076 0000000200000040 0000000000000002 
> 001e7cab001e7cab
>        ffffffff806d3e2c ffff8800016d4000 ffffffff806d3dc8 
> ffffffff806d3dc8
>        ffff880000000000 ffff8800016d4000 Call 
> Trace:<ffffffff803ea348>{net_rx_action+152}
> <ffffffff801325ab>{__do_softirq+107}
>        <ffffffff8013264d>{do_softirq+61} <ffffffff80114ea9>{do_IRQ+57}
>        <ffffffff8010d948>{evtchn_do_upcall+136}
> <ffffffff80112029>{do_hypervisor_callback+17}
>        <ffffffff8010fa53>{xen_idle+83} <ffffffff8010fa53>{xen_idle+83}
>        <ffffffff8010fa8f>{cpu_idle+31} 
> <ffffffff806d46ea>{start_kernel+490}
>        <ffffffff806d4169>{_sinittext+361}
> 
> Code: c7 00 01 00 00 00 48 8b 83 10 01 00 00 c7 40 04 00 00 
> 00 00 RIP <ffffffff803988ca>{netif_poll+1354} RSP <ffffffff806d3d98>
> CR2: ffff88000e928700
>  <0>Kernel panic - not syncing: Aiee, killing interrupt handler!
> 
> xm dmesg tells me:
> 
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to 
> switch input to Xen).
> (XEN) gnttab_transfer: invalid pfn for mfn=4f27e001
> (XEN) gnttab_transfer: invalid pfn for mfn=3f7df001
> (XEN) gnttab_transfer: invalid pfn for mfn=3f03b001
> (XEN) gnttab_transfer: invalid pfn for mfn=516ca001
> (XEN) gnttab_transfer: invalid pfn for mfn=4f306001
> (XEN) gnttab_transfer: invalid pfn for mfn=50cf0001
> (XEN) gnttab_transfer: invalid pfn for mfn=52305001
> (XEN) gnttab_transfer: invalid pfn for mfn=510ce001
> (XEN) gnttab_transfer: invalid pfn for mfn=3efc1001
> (XEN) gnttab_transfer: invalid pfn for mfn=3efc2001
> (XEN) gnttab_transfer: invalid pfn for mfn=3efc3001
> (XEN) gnttab_transfer: invalid pfn for mfn=4e74c001
> (XEN) gnttab_transfer: invalid pfn for mfn=4e74d001
> (XEN) gnttab_transfer: invalid pfn for mfn=4e74e001
> 
> except from that there's nothing unusual in any logs/debug-outputs.
> 
> Could anyone please explain to me, what could be done here?
> 
> Thanks in advance,
> 
> Thomas
> 
> 
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> 
> 
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