Bug#554793: linux-image-2.6.26-2-amd64: ipmi_watchdog module frequently returns errno=16 - Device or resource busy on Dell Poweredge 860s

[Tim Small <tim@buttersideup.com>]

Package: linux-image-2.6.26-2-amd64
Version: 2.6.26-17lenny1
Severity: normal

Opening /dev/watchdog as provided by ipmi_watchdog on a Dell PowerEdge
860 running Lenny 5.0 (64 bit), frequently fails with EBUSY.

Nov  5 11:50:09 kernel: [   29.583805] IPMI Watchdog: driver initialized
Nov  5 11:50:12 watchdog[3239]: starting daemon (5.4):
Nov  5 11:50:12 watchdog[3239]: int=10s realtime=yes sync=no
soft=no mla=0 mem=140733193388032

[...]

Nov  5 11:50:12 watchdog[3239]: test=none(0) repair=none
alive=/dev/watchdog heartbeat=none temp=none to=root no_act=no
Nov  5 11:50:12 watchdog[3239]: cannot open /dev/watchdog (errno
= 16 = 'Device or resource busy')
Nov  5 11:50:12 kernel: [   57.375695] IPMI Watchdog: Unexpected
close, not stopping watchdog


worse, if the module is loaded with the "nowayout=1" - the machine then
gets hard-reset "timeout" seconds later!

Tim.