On Friday, 24 of October 2008, H. Peter Anvin wrote: > Ingo Molnar wrote: > > * Gleb Natapov <gleb@xxxxxxxxxx> wrote: > > > >> Hi, > >> > >> S3 sleep no longer works on x86_64 (at least in KVM, but it looks like > >> this is the kernel bug). Kernel 2.6.26 works. I think that the commit > >> that caused the problem is a939098af, but I can't be 100% sure since > >> compilation is broken at this point. > >> > >> Triple fault happens during S3 resume. It happens in > >> arch/x86/kernel/head_64.S during access to GDT after it was loaded on > >> line 213 (lgdt early_gdt_descr(%rip)) early_gdt_descr points to > >> per_cpu__gdt_page and this address contains valid GDT entries during a > >> regular boot, but on S3 resume in contains garbage. It seems that > >> per_cpu area is reallocated somewhere, but I don't understand this > >> magic enough to fix it. Can somebody look at this and explain what > >> happens? > > > > could you check whether the (post-v2.6.27) upstream fix below does the > > trick for you? > > > > Ingo > > > > From 3038edabf48f01421c621cb77a712b446d3a5d67 Mon Sep 17 00:00:00 2001 > > From: Rafael J. Wysocki <rjw@xxxxxxx> > > Date: Fri, 17 Oct 2008 01:26:27 +0200 > > Subject: [PATCH] x86 ACPI: fix breakage of resume on 64-bit UP systems with SMP kernel > > > > x86 ACPI: Fix breakage of resume on 64-bit UP systems with SMP kernel > > > > Is this patch scheduled for 2.6.27-stable? If not, it sounds like it > should be. It is. :-) Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
