[Bug 676068] New: IRQ 0 assigned to VGA
https://bugzilla.novell.com/show_bug.cgi?id=676068 https://bugzilla.novell.com/show_bug.cgi?id=676068#c0 Summary: IRQ 0 assigned to VGA Classification: openSUSE Product: openSUSE 11.4 Version: RC 2 Platform: i686 OS/Version: SuSE Other Status: NEW Severity: Major Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: fazerxlo@o2.pl QAContact: qa@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; U; Linux i686; pl-PL; rv:1.9.2.13) Gecko/20101203 SUSE/3.6.13-0.2.1 Firefox/3.6.13 In openSUSE 11.4 and also in Ubuntu 10.14 my wideo card S3 UniChrome Pro P4M800 Pro PCI:*(0:1:0:0) 1106:3344:1734:109b rev 1, Mem @ 0xf0000000/67108864, 0xd1000000/16777216 has IRQ 0 assigned in openSUSE 11.3 and earlier it has IRQ 16 I can use system but I have to klick or move mouse from time to time because system freeze. adding boot parameters pci=noacpi acpi=off freeze system immediately after boot-splash appear I have no option in bios for ACPI/IRQ settings computer is Fujitsu-Siemens Amilo Pro V2030D Reproducible: Always Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Jiri Slaby
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--- Comment #2 from Szymon Kowalczyk
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--- Comment #3 from Szymon Kowalczyk
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--- Comment #4 from Szymon Kowalczyk
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--- Comment #5 from Szymon Kowalczyk
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Szymon Kowalczyk
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--- Comment #7 from Szymon Kowalczyk
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--- Comment #8 from Szymon Kowalczyk
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Jiri Slaby
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Szymon Kowalczyk
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Brandon Philips
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Szymon Kowalczyk
Does the Kernel of the Day work better? http://en.opensuse.org/openSUSE:Kernel_of_the_day
no changes -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Jeff Mahoney
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--- Comment #13 from Szymon Kowalczyk
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--- Comment #14 from Szymon Kowalczyk
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--- Comment #15 from Szymon Kowalczyk
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Rafael Wysocki
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Szymon Kowalczyk
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--- Comment #18 from Jeff Mahoney
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Jiri Slaby
I will test kernel-desktop-2.6.39-rc3.5.1.i586.rpm
from
Kernel:HEAD/openSUSE_Factory
Test kernel-vanilla from there instead. Or kernel from Kernel:vanilla which follows upstream on a daily basis. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Szymon Kowalczyk
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Rafael Wysocki
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--- Comment #22 from Jiri Slaby
Can you file a bug for it at bugzilla.kernel.org and let me know its number?
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Szymon Kowalczyk
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Rafael Wysocki
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Rafael Wysocki
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Szymon Kowalczyk
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--- Comment #26 from Rafael Wysocki
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Rafael Wysocki
https://bugzilla.novell.com/show_bug.cgi?id=676068 https://bugzilla.novell.com/show_bug.cgi?id=676068#c28 --- Comment #28 from Thomas Renninger2011-12-21 08:08:37 UTC --- This has been shortly discussed with Eric Biedermann (unfortunately no mailing list was in CC): > On Sunday 17 April 2011 02:27:51 Eric W. Biederman wrote: >> Thomas Renninger writes: >> >> But reading the dmesg I can see clearly that the timer is not working >> on that irq pin pair. > Not sure I understood this, we have: > - irq0 override happens > - irq0 override does not happen In both cases it appears the irq0 override happens. In the old code it was just more confusing, and the override happened poorly enough that it was still possible to use gsi 16 as linux irq 16. I don't remember the bugs well enough to remember how that could have happened. > But in both cases the timer does not work, but in one it at least fall > back to working lapic timer? We initially fall back to finding the timer through virtual wire mode, and in older kernel we switch from virtual wire mode to the lapic timer. > But in both cases one sees a sane number of timer interrupts happening > on irq0? Ultimately. > And it's about this line: > ACPI: IRQ0 used by override. > not the irq 16->0 override, right? They should be different reports of the same mechanism at work. >> In both kernels I see. >> [ 0.028398] ..TIMER: vector=0x30 apic1=0 pin1=16 apic2=-1 pin2=-1 >> [ 0.032000] ..MP-BIOS bug: 8254 timer not connected to IO-APIC >> [ 0.032000] ...trying to set up timer (IRQ0) through the 8259A ... >> [ 0.032000] ..... (found apic 0 pin 16) ... >> [ 0.032000] ....... failed. >> [ 0.032000] ...trying to set up timer as Virtual Wire IRQ... >> [ 0.075529] ..... works. >> >> The vga card does not claim the interrupt in the newer kernels. I >> expect that is because the linux irq became 0, which we use to signal >> no irq has been assigned. > And 0 (the override) is wrong, it must be irq 16 for the vga card, > right? The VGA card could probably work at any other linux irq number. The problem is because we know that 0 is only used by the ISA timer irq we have special-cased 0 to also mean no irq has been assigned. Except in very rare cases like this where BIOS the ability to screw up with irq overrides and then ACPI used that freedom to screw up permission to screw up with irq overrides and then used it > So there are two unrelated irq problems: > 1) vga/agp > 2) timer Roughly. The BIOS says the same irq is for both uses, but that irq input does not work as a timer input. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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--- Comment #29 from Thomas Renninger
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Szymon Kowalczyk
BTW, would you be able to test the 3.2-rc6 kernel from kernel.org?
I tested KOTD kernel-default-3.2.rc4-10.1.i586.rpm and vanilia kernel-vanilla-3.2.rc6.140.gb9e26df-1.1.i586.rpm unfortunately without success :( still IRQ 0
Provide boot param to ignore acpi irq overrides
add this patch to standard opensuse 12.1 (3.1.0-1.2) kernel or other release ?? and what to exactly type in boot parameters -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Rafael Wysocki
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Szymon Kowalczyk
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Thomas Renninger
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Szymon Kowalczyk
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Thomas Renninger
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--- Comment #36 from Szymon Kowalczyk
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--- Comment #37 from Szymon Kowalczyk
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