DomU panic in net_rx_action; changeset 7503:20d1a79ebe31

[Charles Duffy <cduffy@spamcop.net>]

Posted this to -users a while back; no response, and I've observed it a 
second time (with fewer modules loaded), so now posting to -devel.

Per subject, this is changeset 7503:20d1a79ebe31. It's a little bit old, 
granted, but I've been keeping an eye on -devel and haven't seen 
anything that looks explicitly like a fix being applied.

Unable to handle kernel paging request at ffff88000bc85700 RIP:
<ffffffff8024026a>{netif_poll+1354}
PGD 5e3067 PUD 5e4067 PMD 643067 PTE 0
Oops: 0002 [1]
CPU 0
Modules linked in: ipv6
Pid: 0, comm: swapper Tainted: GF     2.6.12.6-xenU
RIP: e030:[<ffffffff8024026a>] <ffffffff8024026a>{netif_poll+1354}
RSP: e02b:ffffffff803bbd98  EFLAGS: 00010216
RAX: ffff88000bc85700 RBX: ffff880039f8e200 RCX: ffff88000bc85120
RDX: ffff88000bc85700 RSI: 0000000000000002 RDI: ffff880039f8e200
RBP: ffff880039f8e200 R08: ffff8800142d24c0 R09: 0000000101d4b358
R10: 0000000000000000 R11: 0000000000000212 R12: ffff88003fc2e360
R13: ffff8800004dd6a8 R14: 0000000000000080 R15: 0000000000000000
FS:  00002aaaab00e6e0(0000) GS:ffffffff803a7900(0000) knlGS:ffffffff803a7900
CS:  e033 DS: 0000 ES: 0000
Process swapper (pid: 0, threadinfo ffffffff803ba000, task ffffffff80307380)
Stack: 0000000180117376 0000000100000040 0000000000000001 0009f9d60009f9d6
        ffffffff803bbe2c ffff88003fc2e000 ffffffff803bbdc8 ffffffff803bbdc8
        ffff880000000000 ffff88003fc2e000
Call Trace:<ffffffff80255859>{net_rx_action+169} 
<ffffffff8013380b>{__do_softirq+107}
        <ffffffff801338ad>{do_softirq+61} <ffffffff80114e69>{do_IRQ+57}
        <ffffffff8010d948>{evtchn_do_upcall+136} 
<ffffffff80111fb9>{do_hypervisor_callback+17}
        <ffffffff8010f9f3>{xen_idle+83} <ffffffff8010f9f3>{xen_idle+83}
        <ffffffff8010fa2f>{cpu_idle+31} <ffffffff803bc6ea>{start_kernel+490}
        <ffffffff803bc169>{_sinittext+361}

Code: c7 00 01 00 00 00 48 8b 83 10 01 00 00 c7 40 04 00 00 00 00
RIP <ffffffff8024026a>{netif_poll+1354} RSP <ffffffff803bbd98>
CR2: ffff88000bc85700
  <0>Kernel panic - not syncing: Aiee, killing interrupt handler!