Okay, after a ridiculous amount of bisecting and recompiling and rebooting... First I had to find out that the kernel stops booting as of bf50467204: "i386: Use per-cpu GDT immediately on boot" (With theis commit, it silently stops booting. The GP fault I posted earlier comes a little later, but I didn't bother finding it.) and starts again as of b0b73cb41d: "i386: msr.h: be paranoid about types and parentheses" However, one commit before the former suspends properly, and the latter fails to suspend (exactly the same problem at get_fixed_ranges+0x9/0x60), so I had to bisect further between the two, backporting the msr.h changes across the msr-index.h splitoff. Anyway, the patch which introduces the problem is the aptly named 3ebad: 3ebad59056: [PATCH] x86: Save and restore the fixed-range MTRRs of the BSP when suspending 2.6.22-rc6 plus that one commit reverted successfully does APM suspend (and resume) for me. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
