Messages in this thread | | | Date | Fri, 6 Apr 2007 16:13:55 -0400 (EDT) | Subject | PROBLEM: ACPI Thermal Zone for CPU0 does not update after hibernation | From | "Walter Francis" <> |
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After hibernating, the CPU0 thermal zone never updates. It will stay at 59C forever for example.
I've tried making the thermal driver a module and unloading it before hibernating and it didn't help, also went back as far as 2.6.19 and saw the same behavior there. Currently using 2.6.21-pre6. If I reboot or suspend to *RAM*, the problem fixes itself. And CPU1's thermal zone is fine. But CPU0 if it's (example) 59C, it stays 59C forever. I'm seeing it in gkrellm, but it's coming from /proc/acpi/thermal_zone/*/temperature and verified to match there.
I'm using Fedora Core 6 on a Lenovo 3000 V100 laptop, custom kernel. Still modular, but stripped down to eliminate things that are not part of this particular laptop. All features work, suspend to ram and disk work fine, sound, wireless, etc. Just this quirk with the ACPI thermal zone crops up when hibernating to disk.
processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 CPU T5500 @ 1.66GHz stepping : 6 cpu MHz : 1000.000 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat p se36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor d s_cpl est tm2 ssse3 cx16 xtpr lahf_lm bogomips : 3328.18 clflush size : 64
Repeat for CPU 1. Core 2 Duo T5500. Kernel is SMP, both CPUs show, just not pasting both for brevity.
I have turned ACPI debug on, here's copies of dmesg before hibernating: http://unlimitedphoto.com/~wally/stuff/dmesg-2.6.21-pre6
And after hibernating: http://unlimitedphoto.com/~wally/stuff/dmesg-2.6.21-pre6-afterhibernation
Please keep me on the CC so I can respond to queries, as I am not on the mailing list.
-- Walter Francis
khayts.us theblackmoor.net unlimitedphoto.com
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