WARNING: at drivers/base/sys.c:183 sysdev_driver_register+0x7a

Ingo Molnar
2008-04-22T07:54:18Z

hi Len,

randconfig boot testing found this new debug warning message in the
syslog:

[ 78.736920] Calling initcall 0xffffffff814792c5: powernowk8_init+0x0/0x9d()
[ 78.744921] powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ processors (1 cpu cores) (version 2.20.00)
[ 78.752921] powernow-k8: BIOS error - no PSB or ACPI _PSS objects
[ 78.756922] initcall 0xffffffff814792c5: powernowk8_init+0x0/0x9d() returned -19.
[ 78.764922] initcall 0xffffffff814792c5 ran for 11 msecs: powernowk8_init+0x0/0x9d()
[ 78.772923] Calling initcall 0xffffffff820ed639: acpi_cpufreq_init+0x0/0x94()
[ 78.780923] sysdev: class cpu: driver (ffffffff81f96da0) has already been registered to a class, something is wrong, but will forge on!
[ 78.784923] ------------[ cut here ]------------
[ 78.788924] WARNING: at drivers/base/sys.c:183 sysdev_driver_register+0x7a/0x12b()
[ 78.792924] Modules linked in:
[ 78.796924] Pid: 1, comm: swapper Not tainted 2.6.25-sched-devel.git-x86-latest.git #4
[ 78.800924]
[ 78.800924] Call Trace:
[ 78.804925] [<ffffffff80259cc2>] warn_on_slowpath+0x5d/0x70
[ 78.808925] [<ffffffff8025ad26>] ? printk+0x6c/0x6e
[ 78.812925] [<ffffffff80279ed9>] ? trace_hardirqs_off+0xd/0xf
[ 78.816925] [<ffffffff8148135a>] ? _spin_unlock_irqrestore+0x4c/0x5c
[ 78.820926] [<ffffffff8027b29f>] ? trace_hardirqs_on+0xd/0xf
[ 78.824926] [<ffffffff802ad2ea>] ? time_hardirqs_on+0x21/0x26
[ 78.828926] [<ffffffff808085f9>] sysdev_driver_register+0x7a/0x12b
[ 78.832926] [<ffffffff80f6c5f1>] cpufreq_register_driver+0xc7/0x1a3
[ 78.836927] [<ffffffff820ed6cb>] acpi_cpufreq_init+0x92/0x94
[ 78.840927] [<ffffffff820e39f3>] kernel_init+0x180/0x302
[ 78.844927] [<ffffffff81480a0e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 78.848927] [<ffffffff8027b267>] ? trace_hardirqs_on_caller+0x117/0x142
[ 78.852928] [<ffffffff80221768>] child_rip+0xa/0x12
[ 78.856928] [<ffffffff80220cfc>] ? restore_args+0x0/0x30
[ 78.860928] [<ffffffff820e3873>] ? kernel_init+0x0/0x302
[ 78.864928] [<ffffffff8022175e>] ? child_rip+0x0/0x12
[ 78.868929]
[ 78.868929] ---[ end trace e4117b3214f66ad9 ]---
[ 78.872929] initcall 0xffffffff820ed639: acpi_cpufreq_init+0x0/0x94() returned -19.
[ 78.880929] initcall 0xffffffff820ed639 ran for 87 msecs: acpi_cpufreq_init+0x0/0x94()
[ 78.888930] Calling initcall 0xffffffff820ed6cd: centrino_init+0x0/0x44()
[ 78.896930] initcall 0xffffffff820ed6cd: centrino_init+0x0/0x44() returned -19.

full log and config at:

http://redhat.com/~mingo/misc/log-Tue_Apr_22_09_33_16_CEST_2008.bad
http://redhat.com/~mingo/misc/config-Tue_Apr_22_09_33_16_CEST_2008.bad

Ingo