http://bugzilla.kernel.org/show_bug.cgi?id=13268
--- Comment #15 from ykzhao <yakui.z...@intel.com> 2009-05-18 03:05:24 --- (In reply to comment #14) > (In reply to comment #12) > > then my question is that, > > 1. does this problem exist in every kernel you've tried? > > Every 2.6 series kernel. > > > 2. does this happen from the beginning, or it's caused at runtime by some > > specific actions? > > The system normally starts in a stable state - unless rebooting after the > interrupt storm. In which case the storm sometimes continues (I think turning > off for a few minutes normally resets everything). > > When the system is in a stable state > > echo disable > /sys/firmware/acpi/interrupts/gpe00 Right. When the system is in the stable state, the GPE00 can be disabled by "echo disable > /sys/firmware/acpi/interrupts/gpe00". > > is effective. I have now added this to the boot.local script, and so far I > have had no more interrupt storms. > > Normally I can cause it by running some graphically intensive websites (with > lots of CSS and flash on the pages). It seems to be independent of the > graphics driver in use with X (I've tried ATI's and the open source radeon > driver). I think it's in some way related to CPU load. >From the ACPIdump and ICh4 spec we know that the GPE00 is related with thermal.When the cpu temperature arises, the GPE00 interrupt will be triggered. But nothing can be done in the _L00 method. Then the interrupt storm happens. > > It's impossible to give an exact scenario which will initiate the interrupt > storm, sometimes it won't happen. >From the ICH4 spec the GPE00_STS can be controlled via the polarity of THRM_POL bit. But in the custom DSDT the polarity of THRM_POL bit is inverted in the _L00 method, there still exists the interrupt storm. In fact IMO this is a BIOS bug.(The bogus GPE00 method). And it had better be fixed by upgrading BIOS. -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
