Messages in this thread | | | Subject | Re: Hibernate resume bug around 3,18-rc2 - Full PAT support | From | Juergen Gross <> | Date | Wed, 25 Nov 2015 06:01:20 +0100 |
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On 24/11/15 23:46, Luis R. Rodriguez wrote: > On Mon, Nov 23, 2015 at 03:19:16PM +0100, Juergen Gross wrote: >> On 23/11/15 15:11, vasvir@iit.demokritos.gr wrote: >>> Ok I will send the .config when I get back home. I have all kernels I >>> build in .deb archive. The problem is that the debian kernel build >>> procedure does not hold somewhere in the deb file the git commit hash. >>> >>> Fow which kernel would you care to see the config? 4.3? >> >> Doesn't really matter anymore. I've posted a patch already to fix it and >> got the reply, that the fix is okay, but no harm can come from the >> current implementation, as the two config options are always either both >> set or reset. > > Hrm, Vassilis seems to be able to reproduce this more effectively by heating up > his CPU prior to hibernation though. I have no idea what adding APIC_LVT_MASKED > ((1 << 16)) to the Local Vector Table (LVT) Thermal Monitor (APIC_LVTTHMR 0x330) does but > clear_local_APIC() seems to be used to "cleanout any BIOS leftovers during > boot." If we're suspending but the fan is still on I wonder if this could cause > an issue with some settings the BIOS may have set prior to hibernation, and > a mismatch upon resume. > > I can't find what APIC_LVT_MASKED does though, the best doc I found:
http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-system-programming-manual-325384.pdf
Local APIC (chapter 10.4).
Juergen
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