Bug 2834
| Summary: | 2.4.27-pre3 IRQ regression - IOAPIC SCI override | ||
|---|---|---|---|
| Product: | ACPI | Reporter: | Len Brown (lenb) |
| Component: | Config-Interrupts | Assignee: | Len Brown (lenb) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | normal | CC: | acpi-bugzilla, david.vanhoose |
| Priority: | P2 | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Kernel Version: | 2.4.27-pre3 | Subsystem: | |
| Regression: | --- | Bisected commit-id: | |
| Attachments: | 2.4.27-pre3 test patch | ||
Created attachment 3079 [details] 2.4.27-pre3 test patch The root cause appears to be that 2.4/i386 dynamically allocates mp_irqs[] so the fix to bug 2520 caused us to write into mp_irqs[] before it was allocated and thus the interrupt source over-ride information was lost. This patch simply allocates mp_irqs[] earlier. shipped in 2.4.27 - closing |
David van Hoose reports that interrupts broke in 2.4.27-pre3: interrupts-2.4.27-pre2: CPU0 0: 6956 IO-APIC-edge timer 1: 136 IO-APIC-edge keyboard 2: 0 XT-PIC cascade 7: 2 IO-APIC-edge parport0 8: 1 IO-APIC-edge rtc 14: 25 IO-APIC-edge ide0 15: 683 IO-APIC-edge ide1 16: 11868 IO-APIC-level ft3xx, nvidia 17: 2 IO-APIC-level ohci1394 18: 0 IO-APIC-level SiS SI7012 19: 20 IO-APIC-level eth0 20: 41 IO-APIC-level acpi, usb-ohci 21: 0 IO-APIC-level usb-ohci 22: 72 IO-APIC-level usb-ohci 23: 0 IO-APIC-level ehci_hcd NMI: 0 LOC: 6907 ERR: 0 MIS: 0 interrupts-2.4.27-pre3 CPU0 0: 46794 local-APIC-edge timer 1: 1760 IO-APIC-edge keyboard 7: 2 IO-APIC-edge parport0 8: 1 IO-APIC-edge rtc 14: 25 IO-APIC-edge ide0 15: 683 IO-APIC-edge ide1 16: 18090 IO-APIC-level ft3xx, nvidia 17: 3 IO-APIC-level ohci1394 18: 0 IO-APIC-level SiS SI7012 19: 30 IO-APIC-level eth0 20: 0 none acpi, usb-ohci 21: 0 IO-APIC-level usb-ohci 22: 67 IO-APIC-level usb-ohci 23: 0 IO-APIC-level ehci_hcd NMI: 0 LOC: 46744 ERR: 0 MIS: 0 IRQ20 has no handler type, and the devices attached do not respond.