tags 664725 - lfs thanks Hello Gennady,
On Tue, Mar 20, 2012 at 11:19:23AM +0100, Gennady N. Uraltsev wrote: > Package: linux-2.6 > Version: 3.2.10-1 > Severity: important > Tags: lfs > > When trying to boot > the 3.2.0-2-rt-686 kernel on my machine it freezes most of the time. In > particular just after grub finishes loading the kernel and the initrd and > proceeds to boot the kernel the message "Loading Linux" or something of that > sort appears, the cursor blinks a couple of times (so far everything as usual) > but then the cursor stops blinking and disappears completely and the system is > completely unresponsive. Caps Lock, alt+sysrq+... and other keys don't have > any > effect. Can you please remove "quiet" from your kernel command line and follow up with the kernel logs. (You can get them via a serial port, netconsole or as a last resort take a picture of your monitor.) Additionally you can test 3.2.12 which is in unstable. > Normally, the message that appears immediately after this on my pc, when a > normal kernel is run, is a debug message from udev (I think) described in: > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654282 > > but that is NOT fatal and is present on all kernels (even the non rt ones). > However in this case nothing of the sort is displayed. > > This problem seems very similar to the one in bug report 63269: > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=663269 > > that has been said to be fixed. As a matter of fact I have noticed one > difference: > > with version 3.2.10-1 (current), if I load a normal, non-rt kernel first then > restart my pc and load the rt kernel the machine usually starts and doesn't > hang and works perfectly, while normally (for example running the rt kernel > for > two times in a row) causes the machine to freeze. On the other hand, with > version 3.2.9-1 there was absolutely nothing to be done to make the machine > boot with the rt-kernel. Yeah, 3.2.9-1 rt is known to be badly broken. > This strange behaviour makes me suspect that something may depend on the way > grub is booting the kernel (maybe some options that persist across boots). Does it make a difference if you do cold booting? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
