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[Xen-bugs] [Bug 421] New: DomU oops after several hours (Changeset 7901)

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Subject: [Xen-bugs] [Bug 421] New: DomU oops after several hours (Changeset 7901)
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Date: Mon, 21 Nov 2005 08:21:30 +0000
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           Summary: DomU oops after several hours (Changeset 7901)
           Product: Xen
           Version: unstable
          Platform: x86-64
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Hypervisor
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jmarijne@xxxxxxxxxxxxxx

System description:

Compaq DL 145 with Opteron 3 gb ram
Dom0 running debian Sarge with iscsi support
domU running debian Sarge, normal kernel not patched 
running changeset 7901

This release seems to be working fine, have done some benchmarking (web server) 
on it, with no issues, but after several hours (mostly happens at night)
the kernel in DomU oopses. When this happens Xentop show 99% cpu usage for that
domain, it usually happens to al DomU's, but i am running with only 1 DomU at
the moment.
It is then possible to restart/shutdown the domU en restart it.
xm console does show the oops:

Unable to handle kernel paging request at ffff88000b6bc700 RIP:
PGD 43b067 PUD 43c067 PMD 498067 PTE 0
Oops: 0002 [1] SMP
Modules linked in: ipt_REJECT ipt_multiport ipt_LOG ipt_state ip6table_filter
ip6_tables iptable_filter ip_tables ip_conntrack_tftp ip_conntrack_proto_sctp
ip_conntrack_irc ip_conntrack_ftp ip_conntrack_amanda ip_conntrack tun md5 ipv6
sr_mod cdrom sd_mod scsi_mod
Pid: 0, comm: swapper Tainted: GF
RIP: e030:[<ffffffff8022f746>] <ffffffff8022f746>{netif_poll+1407}
RSP: e02b:ffffffff8038fd58  EFLAGS: 00010212
RAX: ffff88000b6bc700 RBX: ffff88000f054d00 RCX: ffff88000b6bc058
RDX: ffff88000b6bc700 RSI: 0000000000000002 RDI: ffff88000f054d00
RBP: ffff88000f054d00 R08: 0000000000000000 R09: ffffffff8035ada0
R10: 000000000000007f R11: 0000000000000212 R12: ffff880001608380
R13: ffff8800005b92a8 R14: 0000000000000000 R15: 0000000000000080
FS:  00002aaaaae00640(0000) GS:ffffffff8037ba00(0000) knlGS:ffffffff805dad00
CS:  e033 DS: 0000 ES: 0000
Process swapper (pid: 0, threadinfo ffffffff8038e000, task ffffffff802dfd80)
Stack: 0000000100000000 0000000100000040 0000000000000001 0000275600002756
       ffffffff8038fdf4 ffff880001608000 ffffffff8038fd88 ffffffff8038fd88
       0000000100000000 ffff8800004c2b40
Call Trace:<ffffffff80240494>{net_rx_action+231}
       <ffffffff80134263>{do_softirq+76} <ffffffff80115551>{do_IRQ+57}
       <ffffffff801101ee>{xen_idle+107} <ffffffff80110236>{cpu_idle+58}
       <ffffffff803906d0>{start_kernel+483} <ffffffff8039016e>{_sinittext+366}

Code: c7 00 01 00 00 00 48 8b 83 08 01 00 00 c7 40 04 00 00 00 00
RIP <ffffffff8022f746>{netif_poll+1407} RSP <ffffffff8038fd58>
CR2: ffff88000b6bc700
 <0>Kernel panic - not syncing: Aiee, killing interrupt handler!

domU config:

kernel = "/boot/vmlinuz-2.6.12-xenU"
memory = 256
name = "cust-01"
vif = [ 'mac=aa:01:02:03:04:11, bridge=xenbr0' ]
disk = [ 'phy:sdb,hda1,w','phy:/dev/raid1/swap-kraaybeek,hdb1,w' ]
root = "/dev/hda1 ro"
extra = "2"
on_reboot   = 'restart'
on_crash    = 'restart'

Let me know if more information is requered

Joop Marijne

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