Regression #6 on latest git! (last known good is 2.6.29-rc8) My EEE PC hangs on bootup if it is not connected to mains power. The hang happens during udev coldplug. I've left it for >60 seconds with nmi_watchdog=1, soft lockup and hung task detection are enabled, and I get no trace. Key presses are not echoed to the screen. Magic SysRQ keys work though. Unfortunately, SysRq-W / SysRq-T generate too much output, so the useful bits immediately scroll off the top of the screen. I can't press SysRq-P (even if that would help), because the SysRQ key on my laptop is accessed using a Fn modifier key, which also turns the left hand side of the keyboard into a numeric pad. Magic SysRQs on my USB keyboard generate no response. (Sometimes the numlock key seems to work though. I can't tell on the laptop keyboard because the laptop doesn't have a numlock led). I also tried booting with vga=ask (anticipating nmi_watchdog output), and selecting the highest mode, 80x60. It turns out that this doesn't really work, the screen flickers constantly until userspace changes the console font. However, it avoided the hang in udev coldplug. Instead, the hang occurred when X started, leaving me with a black screen and a non-responsive X cursor. Booting with acpi=off fixes this. Regards Alan -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
