Opened 14 years ago
Closed 13 years ago
#8850 closed defect (fixed)
FreeBSD Guest freezes completely
| Reported by: | Erik | Owned by: | |
|---|---|---|---|
| Component: | guest smp | Version: | VirtualBox 4.0.6 |
| Keywords: | FreeBDS freezes completely | Cc: | |
| Guest type: | BSD | Host type: | Linux |
Description
We have one or more times a week a complete freeze (guru meditation) in one or more of our guest FreeBSD systems. It occurs only in SMP configurations (in our case we have 2xCPU in the FreeBSD guests).
In this situation the virtualbox process for the guest is consuming a lot of cpu time. A trace of this proces is attached.
When we start a debug session for the guest during freeze (a coredump is attached), you can solve the freeze by doing a stop and a step (t). Sometimes you have to switch CPU and repeating the same. The freeze is solved and the machine will run again.
On the guest we use the guest additions for keeping the time right. We also tested this without these additions and using ntpd, then the same freeze problem happens. It happens for FreeBSD 7.2, 8.1 and 8.2 (and probably other versions as well).
The freeze seems to occur when we do snapshots and stopping and resuming of guests.
Our FreeBSD systems run very well on VirtualBox. With this bug we cannot use FreeBSD for production in combination with FreeBSD.
Hope this problem can be solved!
Attachments (3)
Change History (13)
by , 14 years ago
| Attachment: | strace.vb.out added |
|---|
comment:1 by , 14 years ago
The coredump is downloadable here: http://www.cakologics.com/wp-content/uploads/freeze.gz
It is about 282MB.
comment:2 by , 14 years ago
Which host is that? And please attach a VBox.log file for such a session.
comment:3 by , 14 years ago
| Component: | other → guest smp |
|---|
comment:5 by , 14 years ago
The host: Linux 2.6.18-194.32.1.el5 #1 SMP Wed Jan 5 17:52:25 EST 2011 x86_64 x86_64 x86_64 GNU/Linux Centos 5
The logfiles corresponding to the freeze were already overwritten (sorry for that).The next time the error occurs I will provide the VBox.log for this issue.
by , 14 years ago
| Attachment: | freebsd1-2011-05-08-08-01-11.log added |
|---|
VBox.log corresponding with freeze2, core included (freeze2.gz)
comment:6 by , 14 years ago
The coredump corresponding with VBox.log freebsd1-2011-05-08-08-01-11.log can be downloaded here: http://www.cakologics.com/wp-content/uploads/freeze2.gz
It is about 300MB.
comment:7 by , 14 years ago
Thanks for the core dump. For some reason my gdb cannot properly interpret this file (warning: Couldn't find general-purpose registers in core file and Cannot access memory at address 0xd87f045e3901c38b). Can you open that core dump on your host yourself?
comment:8 by , 14 years ago
I have the warning, but not the error "Cannot access memory at address...".
I can read the core with readelf. I will attach the result of readelf -a. (I hope it is of any use).
If I need to provide further information, please let me know!
Trace of process on host system during freeze