Created attachment 21003 [details] my .config Hardware: Thinkpad X40 Laptop, Pentium M 1.2 GHz, Bios v2.07 Software: Debian unstable x86_32 When booting up 2.6.29-rc2, the system hangs hard somewhat randomly (usually when loading kernel modules). No reaction to sysrq. I used bisecting to track down the problem to the following commit commit ff69f2bba67bd45514923aaedbf40fe351787c59 Author: alex.shi <alex.shi@intel.com> Date: Wed Mar 4 11:55:26 2009 -0800 acpi: fix of pmtimer overflow that make Cx states time incorrect Reverting this on top of 2.6.29-rc2 gets rid of the hangs. I'll attach my config. 2.6.29 is not affected, so this is a post-2.6.29 regression.
2.6.29-rc2 is a funny kernel version to be testing: -rc2 is always full of regressions. Is the bug also present in 2.6.29 final? Thanks.
it is duplicated with bug 13087, but I did not found some ways set this as previous bugzilla. :(
Hi, Alex What you said is right. It is the duplicate bug of 13087. Will you please try the boot option of "clocksource=acpi_pm" and see whether the box still hangs? Thanks.
Hi, Daniel Will you please try the boot option of "clocksource=acpi_pm" and see whether the box still hangs? Do you mean that the system can be booted normally if the following commit is reverted on the latest git-tree? >ff69f2bba67bd45514923aaedbf40fe351787c59 thanks.
*** This bug has been marked as a duplicate of bug 13087 ***
On Thu, Apr 16, 2009 at 02:19:48AM +0000, bugzilla-daemon@bugzilla.kernel.org wrote: > --- Comment #4 from ykzhao <yakui.zhao@intel.com> 2009-04-16 02:19:48 --- > Hi, Daniel > Will you please try the boot option of "clocksource=acpi_pm" and see > whether the box still hangs? I've just tested and yes, it works with on 2.6.30-rc2 (sorry for yet again screwing up the version numbers - when bisecting I'm always confused by the fact that the git versions starts with with the old version number (2.6.29) before rc1). > Do you mean that the system can be booted normally if the following > commit > is reverted on the latest git-tree? > >ff69f2bba67bd45514923aaedbf40fe351787c59 Yes, reverting ff69.. on top of 2.6.30-rc2 fixes the hangs, too. Thanks, Daniel