Messages in this thread |  | | | From | "Rafael J. Wysocki" <> | | Subject | Re: [PATCH 0/11] ACPI: Fixes and cleanups related to iomaps management | | Date | Mon, 24 Jan 2011 22:36:08 +0100 |
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On Monday, January 24, 2011, Jeff Chua wrote: > On Mon, Jan 24, 2011 at 4:28 AM, Rafael J. Wysocki <rjw@sisk.pl> wrote: > > On Sunday, January 23, 2011, Jeff Chua wrote: > >> On Sun, Jan 23, 2011 at 3:12 AM, Rafael J. Wysocki <rjw@sisk.pl> wrote: > >> > On Saturday, January 22, 2011, Jeff Chua wrote: > >> >> 2011/1/22 Rafael J. Wysocki <rjw@sisk.pl>: > >> >> > On Saturday, January 22, 2011, Jeff Chua wrote: > >> Strange. If I didn't offline, it hanged during suspend even without > >> thinkpad_acpi. I could see that the suspend code does the offline > >> automatically, but executing the offline before calling suspend makes > >> it no hanging. > > > > That means there's a problem in the CPU hotplug code that manifests itslef > > during suspend. Is this 100% reproducible? Did it happen with 2.6.37? > > Quite reproducible. Once "something" trigger the hang, no matter how > I reset the system, it'll still hang at suspend. And at other times, > it just worked. I tried many things, but it seems if I go back to use > an earlier version (2.6.37 works perfectly for suspend-to-disk/mem), > then switched back to the newer broken version, it'll work for a few > cycles before hanging at suspend-to-disk. > > I guess it could be CPU hotplug, and may be that thinkpad-acpi is > triggering the broken cpu hotplug to fail.
So please try with this commit on top: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ec30f343d61391ab23705e50a525da1d55395780
Thanks, Rafael
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