https://bugzilla.kernel.org/show_bug.cgi?id=38632
Summary: IRQ Nobody Cared on Sandybridge Additional Ethernet
Card
Product: ACPI
Version: 2.5
Kernel Version: 2.6.39.2
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Config-Interrupts
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=64232)
--> (https://bugzilla.kernel.org/attachment.cgi?id=64232)
/proc/acpi/wakeup
Additional PCI ethernet card in Sandybridge M/B runs for a few minutes, then
gets IRQ 19 Nobody Cared
System details:
- Asus P8H67-V/R3 (latest Bios 0712, default settings except AHCI and
VT-enabled)
- COREi5/2500K
- 4 x 4GB Corsair CMX8GX3M2A1333C9
- On-board video and ethernet (eth1, at11c driver)
- One additional RTL8139 or Broadcom BCM5702X PCI ethernet for eth0 (fails
identically with either) - no other cards
- FC14 with 2.6.39.2 custom kernel, updates to 30/6/11
Moving to another slot only changes the IRQ number involved.
The following do not prevent the problem:
- pci=noacpi
- acpi=noirq
- noapic
- nolapic
- pci=nocrs
Setting acpi=off does appear to prevent the problem (at least it runs for a
couple of hours...) but is undesirable as power consumption is about 25%
higher, and the CPU temp is markedly higher even with the CPU fan running
faster.
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