http://bugzilla.kernel.org/show_bug.cgi?id=3927
------- Additional Comments From [EMAIL PROTECTED] 2006-01-28 21:19 ------- Well it had some NDA notices on it. Although I didnt sign anything, I don't want to distribute it. But basically it just described in a long winded way that if the interrupt is both enabled on the PIC and on the APIC then it will be delivered twice. I don't quite believe it's that simple because timer-routing disabled the PIC completely and it still didn't help for everybody. [In short I think the analysis was incomplete at best] Also it doesn't explain why the timer fallback code chose to unmask both PIC and APIC in the first place - it only does that when the sane options (PIC only or APIC only) don't work. It also had a recommendation for a BIOS level workaround where you set a magic bit in the Northbridge and then the CPU will ignore the messages from the PIC. If the BIOS incorporated that fix and you used to disable the APIC pins like the earlier workaround patches did then nothing would be delivered and the system wouldn't boot (there was another document that described this problem). At some point i tried to code a patch that check for that bit and don't do anything, otherwise disable PINs, but it also didn't work in all cases and ended up quite hackish. So in the end I chose to use the APIC timer. I had actually written that code before for some different purpose, so it wasn't that much of a redevelopment. ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642 _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
