On Sunday, August 01, 2010, Willi Mann wrote:
Hi!
On my Thinkpad T500 with Debian-compiled kernel 2.6.35~rc6-1~experimental.1, I still get OOpses on suspend.
Did it happen with 2.6.34 or previous kernels?
The following OOPS has been found be using the platform method. I had to hard-reboot as SysRQ didn't work. (although I have also seen similar suspend OOPSes where it worked). The suspend has been initiated by echo disk > /sys/power/state from virtual terminal.
http://wserver.wm1.at/~willi/linux/suspend_issue/suspend_error.jpg
However, I don't get the same OOPS every time, and the problem does not occur at every suspend. I haven't managed to get more than one suspend successfully finished (since a cold-boot). Particularly, it seems that if the first suspend succeeds, the problem always occurs at the second attempt.
Also note that if I initiated the suspend from X, I often got a blank screen (except for a blinking cursor) instead of the OOPS. (The fact that the screen was blank could also be related to the fact that when tested from X, I hadn't raised the log levels)
When I disable the i915 module (I renamed it), I can't reproduce the problem.
lspci -v -s 00:02.0: 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device 2114 Flags: bus master, fast devsel, latency 0, IRQ 48 Memory at f4400000 (64-bit, non-prefetchable) [size=4M] Memory at d0000000 (64-bit, prefetchable) [size=256M] I/O ports at 1800 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 3 Kernel driver in use: i915
Please let me know what additional infos are required to resolve this problem.
Rafael