Summary: Xen domU chrashes with high network load
Product: openSUSE 12.3
OS/Version: openSUSE 12.3
Priority: P5 - None
Found By: ---
Created an attachment (id=545304)
Kernel oops captured in syslog of chrashed domU
User-Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:21.0)
I observed on two different machines domU chrashes under high network load.
With one dom0, running two domU's, logged in on domU_A, scp large_file domU_B:,
chrashes domU_B within little time.
Using 100 MbE connectivity from a remote host does not trigger this BUG in
reasonable time. However transferring data using 1 GbE connectivity from a
remote host does trigger this within say 30 seconds.
Steps to Reproduce:
1. Start domU;
2. scp large file to domU, e.g. from other domU on the same dom0 or from remote
host with at least 1 GbE connectivity
3. Wait until domU chrashes or hangs
I have observed two error states:
1. The domU seems to be unresponsive;
2. The domU is rebooted (I have on_crash="restart" in config file)
In both cases on dom0 console a kernel OOPS similar to the attachment is
logged. The trace starts with lines similar to:
BUG: unable to handle kernel paging request at 000005a8000000bb
IP: [<ffffffff8028e6c6>] memcpy+0x6/0x110
Oops: 0002 [#1] SMP
A stable system
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