On Fri, Sep 30, 2011 at 01:01:28AM +1000, johnohagan wrote: > Running Debian testing on an HP Mini 5102 with non-RT kernel, suspend > to ram, suspend to disk and resume work as expected. With the RT > kernels from both testing and Sid, attempting to suspend may result in For the people not running Debian: wheezy aka testing currently has 3.0.2 + 3.0.1-rt11 sid aka unstable currently has 3.0.4-rt14 > a lock-up, with a blank screen and high fan operation. Keyboard and > Sysrq keys are unresponsive and a hard shutdown is necessary. This > happens randomly AFAIKT, of the order of half the time, possibly more > often if larger programs are running, but still occurs in single-user > mode. > > I ran the tests using /sys/power/pm_test described here: > https://raw.github.com/torvalds/linux/master/Documentation/power/basic-pm-debugging.txt > > The freeze occurs with pm_test set to "processors", but not with "platform". > > With "single no_console_suspend" on the kernel command-line and trying > STD, the screen messages are normal up to the point of saving the > image, and remain there after the freeze. For STR the screen is blank > when the freeze happens. > > There is one tainted module on my system, brcmsmac, which I > blacklisted for the testing. > > I've submitted this as Debian bug #643301, and am sending this summary > here on the advice of Debian maintainers. I asked for a kernel log on a serial console (don't know if that is possible for John to provide). If you have other tips to debug that ... Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
