http://bugzilla.kernel.org/show_bug.cgi?id=12796
Summary: via driver (?) fails to handle interrupt
Product: Drivers
Version: 2.5
KernelVersion: 2.6.28.7
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: low
Priority: P1
Component: Video(DRI)
AssignedTo: drivers_video-...@kernel-bugs.osdl.org
ReportedBy: zwe...@xs4all.nl
Latest working kernel version:
Earliest failing kernel version: 2.6.16 or earlier
Distribution: Debian
Hardware Environment: VIA K8M800/K8N800/K8N800A [S3 UniChrome Pro]
Software Environment: debian testing: xserver-xorg-video-via-1:0.2.2-6,
libdrm2-2.3.1-2
Problem Description:
Package: xserver-xorg-video-via
Version: 1:0.1.33.2-3
Severity: minor
When starting the X server, the kernel spits out the following message:
Mar 1 22:43:42 arrow kernel: [ 35.229770] [drm] Initialized drm 1.1.0
20060810
Mar 1 22:43:42 arrow kernel: [ 35.255792] pci 0000:01:00.0: PCI INT A -> GSI
16 (level, low) -> IRQ 16
Mar 1 22:43:42 arrow kernel: [ 35.255949] [drm] Initialized via 2.11.1
20070202 on minor 0
Mar 1 22:43:42 arrow kernel: [ 35.293414] agpgart-amd64 0000:00:00.0: AGP
3.0 bridge
Mar 1 22:43:42 arrow kernel: [ 35.293431] agpgart: Xorg tried to set
rate=x12. Setting to AGP3 x8 mode.
Mar 1 22:43:42 arrow kernel: [ 35.293439] agpgart-amd64 0000:00:00.0:
putting AGP V3 device into 8x mode
Mar 1 22:43:42 arrow kernel: [ 35.293503] pci 0000:01:00.0: putting AGP V3
device into 8x mode
Mar 1 22:43:43 arrow kernel: [ 35.772229] irq 16: nobody cared (try booting
with the "irqpoll" option)
Mar 1 22:43:43 arrow kernel: [ 35.772237] Pid: 2517, comm: debtorrent-clie
Not tainted 2.6.28.7 #1
Mar 1 22:43:43 arrow kernel: [ 35.772240] Call Trace:
Mar 1 22:43:43 arrow kernel: [ 35.772248] [<c0159fb7>]
__report_bad_irq+0x24/0x69
Mar 1 22:43:43 arrow kernel: [ 35.772252] [<c0159fbe>]
__report_bad_irq+0x2b/0x69
Mar 1 22:43:43 arrow kernel: [ 35.772255] [<c015a0e7>]
note_interrupt+0xeb/0x140
Mar 1 22:43:43 arrow kernel: [ 35.772259] [<c015a625>]
handle_fasteoi_irq+0x89/0xae
Mar 1 22:43:43 arrow kernel: [ 35.772263] [<c0105bd7>] do_IRQ+0x67/0x7c
Mar 1 22:43:43 arrow kernel: [ 35.772266] [<c010450b>]
common_interrupt+0x23/0x28
Mar 1 22:43:43 arrow kernel: [ 35.772268] handlers:
Mar 1 22:43:43 arrow kernel: [ 35.772270] [<dca465dc>]
(via_driver_irq_handler+0x0/0x148 [via])
Mar 1 22:43:43 arrow kernel: [ 35.772280] Disabling IRQ #16
However, the X server works well (so far), hence the low severity.
There is an open bug in the debian bug tracking system on this, with more info:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=388453
I originally attributed this to the X server, but my knowledge is limited in
these areas. The debian maintainer of bug 388453 asked me to reproduce this
with the latest kernel, so here it is.
Steps to reproduce:
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