Red Hat Bugzilla – Bug 461029
[RHEL-5.2] IRQ X: nobody cared, Disabling IRQ #X (interrupts shared?)
Last modified: 2011-01-24 18:19:57 EST
Description of problem:
On Sprucewood machine running RHEL 5.2 x86 xen kernel with one network
adapter(Intel PRO/1000 PT Dual Port 39y6126) installed. If we bring up the
second interface of Intel NIC like this: "ifconfig eth3 up", then the error
message appears in the log file:
irq 20: nobody cared (try booting with the "irqpoll" option)
[<ee2393b7>] (e1000_intr+0x0/0xe7 [e1000e])
Disabling IRQ #20
Version-Release number of selected component (if applicable):
2.6.18-92.el5xen #1 SMP i686 GNU/Linux
Machine Type = x3500 sprucewood ref.5, 7977-42Z
Steps to Reproduce:
1. Install RHEL 5.2 x86 xen kernel on Sprucewood advanced ref.5 machine
with Intel Network card (PRO/1000 PT Dual Port 39y6126) installed.
2. Booting into xen kernel, type command "ifconfig eth3 up" (eth3 is
the second port of Intel NIC), then the error message shows up in
the log file.
Passing 'noirqdebug' to dom0 kernel workaround this issue indicating
that this appears to be fixed by the patch posted at:
Looks like a problem, but I don't agree with the last statement; the patch there was never accepted upstream, but it's replacement was. The thing is, we already have the replacement in 5.2, so it must be something else.
------- Comment From firstname.lastname@example.org 2009-02-07 22:33 EDT-------
Redhat, FYI, This issue is also noticed in 5.3 GA. Thanks!
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It appears this issue was resolved in RHEL 5.4