Guru meditation (MM_RAM_FLAGS_CREFS_PHYSEXT)

[r007]

Possibly related to #3047.

Restarting X three times reproducibly causes vbox to meditate.

Attached are a screenshot of the process, and a matching VBox.log.

[r007]

VBox logfile of meditation

[r007]

Screenshot of restarting gdm.

[Sander van Leeuwen]

#3131 was marked as a duplicate of this one.

[Sander van Leeuwen]

Same for #3158.

[Tobi Vollebregt]

From #3131:

One of my VirtualBox virtual machines had this same problem last friday while it was performing a rather intensive computing task in MATLAB.

I'm running VirtualBox 2.1.2 (from the repository linked to on the Download page) on an Ubuntu (8.04) Linux host (Linux 2.6.24-23-generic #1 SMP i686 GNU/Linux), an Intel(R) Core(TM)2 Duo CPU T5750 @ 2.00GHz with 3G RAM.

The guest OS is Windows XP SP3. The virtual machine had 1G RAM. At the time of the crash 2 virtual machines with 1G RAM were running. Both were using the same base disk image, the crashed one was differencing due to snapshot, and it's base disk image attached (with the blue star) to the other one too as differencing disk. Both VMs were started using the GUI.

At the time of the crash probably both machines were doing computations in MATLAB at 100% CPU and 250-750 MB RAM usage.

I didn't do any X restarts for I wasn't even near my machine at the time of the crash.

Log file:

​http://www.virtualbox.org/attachment/ticket/3131/TUD%202008%20Q1-2009-01-23-18-21-42.log

[ttmrichter]

Same problem running a Slackware 12.2 guest under Ubuntu 8.04. The guest worked fine under VB 2.1.0, started failing after upgrading to 2.1.2. Log file attached.

[Sander van Leeuwen]

#3252 is a duplicate

[Sander van Leeuwen]

Can you reproduce this easily? If so, would you be willing to try out a test build?

[Jay Goldberg]

I am able to reproduce this easily, whenever the guest operating system exits the XServer, ie Ctrl-Alt-Backspace, Logout, Reboot, Shutdown. Occurs whether in desktop environment or in GDM.

My guest is Linux Zenwalk 5.2 (Slack derivative) kernel 2.6.27.10. running on Linux Zenwalk 5.2 kernel 2.6.27.10

I thought it was related to 3D acceleration but I disabled that and it still crashes.

My desktop environment (XFCE) restores to strange "default" settings without a main panel, and custome desktop background absent, which is probably a result of xfce-session terminating unexpectedly.

I'd be willing to try a test build. Will attach my log.

[Jay Goldberg]

Crash log for Guru Meditation MM_RAM_FLAGS_CREFS_PHYSEXT (Zenwalk 5.2 guest)

[r007]

For me, this is fixed in 2.1.4, see related ticket in the summary.

[Sander van Leeuwen]

Thanks for the feedback.

[Jay Goldberg]

Confirmed squashed in 2.1.4. Thanks so much!