http://bugzilla.novell.com/show_bug.cgi?id=620205
http://bugzilla.novell.com/show_bug.cgi?id=620205#c14
--- Comment #14 from Carlos Costa e Silva 2010-07-20 18:31:06 WEST ---
Nothing seems to be in the log when the windows domU was the only vm created on
this dom0.
Very late last last night (at about 4am) I created on this dom0 a pvm domU from
an openSUSE 11.2 disk copied from the same 11.2 dom0 from where this windows
hvm came.
When I now looked at the messages file, I saw segfaults happening in tapdisk
when this domU is shutdown . The openSUSE domU seems to be having no problem
restarting after the shutdown and this segfault.
No segfault is logged when the windows domU is shutdown, possibly because the
windows domU is using one "file:" disk while the openSUSE domU is using a
"tap:aio" and a "tap:cdrom" disk.
Relevant log:
Jul 20 04:14:10 poseidon avahi-daemon[2734]: Withdrawing address record for
fe80::fcff:ffff:feff:ffff on vif1.0.
Jul 20 04:14:10 poseidon kernel: [ 393.304245] br0: port 2(vif1.0) entering
disabled state
Jul 20 04:14:10 poseidon kernel: [ 393.316068] br0: port 2(vif1.0) entering
disabled state
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/vif-bridge: offline
XENBUS_PATH=backend/vif/1/0
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/vif-bridge: brctl delif br0
vif1.0 failed
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/vif-bridge: ifconfig vif1.0
down failed
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/vif-bridge: Successful
vif-bridge offline for vif1.0, bridge br0.
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/vkbd/1/0
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/console/1/0
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/vfb/1/0
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/blktap: remove
XENBUS_PATH=backend/tap/1/51712
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/blktap: remove
XENBUS_PATH=backend/tap/1/51728
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/vif/1/0
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/blktap: remove
XENBUS_PATH=backend/tap/1/51712
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/blktap: remove
XENBUS_PATH=backend/tap/1/51728
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/tap/1/51712
Jul 20 04:14:11 poseidon BLKTAPCTRL[3322]: blktapctrl.c:745: Unmapping vbd
Jul 20 04:14:11 poseidon BLKTAPCTRL[3322]: blktapctrl.c:356: Write_msg called:
CTLMSG_CLOSE
Jul 20 04:14:11 poseidon BLKTAPCTRL[3322]: blktapctrl.c:275: DEL_DISKTYPE:
Freeing entry
Jul 20 04:14:11 poseidon BLKTAPCTRL[3322]: blktapctrl.c:753: Closing
communication pipe to pid 4057
Jul 20 04:14:11 poseidon logger: /etc/xen/scripts/xen-hotplug-cleanup:
XENBUS_PATH=backend/tap/1/51728
Jul 20 04:14:12 poseidon kernel: [ 394.495696] show_signal_msg: 3 callbacks
suppressed
Jul 20 04:14:12 poseidon kernel: [ 394.495703] tapdisk[4169]: segfault at 0 ip
000000000040aaaf sp 00007fff487d7750 error 4
in tapdisk[400000+13000]
Jul 20 04:14:12 poseidon BLKTAPCTRL[3322]: blktapctrl.c:745: Unmapping vbd
Jul 20 04:14:12 poseidon BLKTAPCTRL[3322]: blktapctrl.c:356: Write_msg called:
CTLMSG_CLOSE
Jul 20 04:14:12 poseidon BLKTAPCTRL[3322]: blktapctrl.c:275: DEL_DISKTYPE:
Freeing entry
Jul 20 04:14:12 poseidon BLKTAPCTRL[3322]: blktapctrl.c:753: Closing
communication pipe to pid 4169
And two more openSUSE domU shutdowns:
Jul 20 04:17:37 poseidon kernel: [ 599.882444] tapdisk[4677]: segfault at 0 ip
000000000040aaaf sp 00007fff90e70b70 error 4 in tapdisk[400000+13000]
..
Jul 20 17:30:19 poseidon kernel: [48162.475377] tapdisk[5329]: segfault at 0 ip
000000000040aaaf sp 00007fff70d30bc0 error 4 in tapdisk[400000+13000]
..
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