https://bugzilla.kernel.org/show_bug.cgi?id=43238
Summary: PCI devices broken on Intel H77
Product: ACPI
Version: 2.5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Config-Interrupts
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
Created an attachment (id=73261)
--> (https://bugzilla.kernel.org/attachment.cgi?id=73261)
lspci -v, dmesg and kernel .config
Hello,
I have a new motherboard based on Intel H77, it's an Intel DH77KC. I needed to
use an extra ethernet card, tried three different PCI cards, but none of them
worked. It appears the driver is not receiving any interrupts. /proc/interrupts
shows only zeroes for "eth1".
This causes the interface to have the NO-CARRIER flag even when mii-tool
reports that a connection has been negotiated. And of course, the interface
doesn't work.
What helps? Only acpi=off, other options either don't help or make the system
unbootable. Turning ACPI off is however not acceptable as it disables all other
CPU cores but the first one.
Lubos
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