"Time went backwards" + freeze for domU's with kernel 2.6.22-xen
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xen |
Confirmed
|
High
|
|||
linux (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned | ||
linux-source-2.6.22 (Ubuntu) |
Won't Fix
|
Low
|
Unassigned | ||
Bug Description
Binary package hint: linux-source-2.6.22
Suspending or migrating a guest (migrating uses suspend) causes the clock to stop in the guest. It doesn't happen on *every* suspend or migrate - I've migrated machines successfully without this, but most of the time.
This is with linux-image-
Confirmed by a 3rd party here: http://
Kernel ring buffer on the affected guest has the following or similar, and continues until a reboot of the guest:
netfront: device eth0 has copying receive path.
netfront: device eth1 has copying receive path.
printk: 359 messages suppressed.
clocksource/0: Time went backwards: delta=-
printk: 210 messages suppressed.
clocksource/0: Time went backwards: delta=-
printk: 232 messages suppressed.
clocksource/0: Time went backwards: delta=-
printk: 207 messages suppressed.
clocksource/0: Time went backwards: delta=-
printk: 347 messages suppressed.
clocksource/0: Time went backwards: delta=-
etc.etc.etc.
Changed in linux-source-2.6.22: | |
status: | New → Confirmed |
Changed in xen: | |
importance: | Undecided → Unknown |
status: | New → Unknown |
Changed in xen: | |
status: | Unknown → Confirmed |
Changed in xen: | |
importance: | Unknown → High |
I had this here, too, but on the Dom0. I also see these messages. Over the weekend, the server went back to 1955, giving me a negative uptime :)
... 693481823961668 0928 shadow= 169557016039123 offset=870673 693481823461591 4696 shadow= 169562016045408 offset=1630992 693481822961513 5381 shadow= 169567016051452 offset=2403808 693481822461433 4593 shadow= 169572016008428 offset=3247489 693481821961752 9015 shadow= 169577016014706 offset=46909
Apr 24 15:54:16 beelzebot kernel: printk: 11078013 messages suppressed.
Apr 24 15:54:16 beelzebot kernel: clocksource/0: Time went backwards: delta=-
Apr 24 15:54:16 beelzebot kernel: printk: 11096888 messages suppressed.
Apr 24 15:54:16 beelzebot kernel: clocksource/0: Time went backwards: delta=-
Apr 24 15:54:16 beelzebot kernel: printk: 11082088 messages suppressed.
Apr 24 15:54:16 beelzebot kernel: clocksource/0: Time went backwards: delta=-
Apr 24 15:54:16 beelzebot kernel: printk: 11089239 messages suppressed.
Apr 24 15:54:16 beelzebot kernel: clocksource/0: Time went backwards: delta=-
Apr 24 15:54:16 beelzebot kernel: printk: 11076688 messages suppressed.
Apr 24 15:54:16 beelzebot kernel: clocksource/0: Time went backwards: delta=-
Apr 24 15:54:16 beelzebot kernel: printk: 11082349 messages suppressed.
...
(note that this is not Apr 24 2007 :).
I have already disabled EIST in the BIOS.
Ciao
Martin