linux-kernel - [BUG] warning at kernel/cpu.c:38/lock_cpu

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Date:	Sat, 23 Sep 2006 01:45:16 +0300
From:	"S.Çağlar Onur" <caglar@...dus.org.tr>
To:	linux-kernel@...r.kernel.org
Subject: [BUG] warning at kernel/cpu.c:38/lock_cpu_hotplug()

Hi;

With kernel-2.6.18, "modprobe cpufreq_stats" always (i can reproduce) gaves 
following;

...
Lukewarm IQ detected in hotplug locking
BUG: warning at kernel/cpu.c:38/lock_cpu_hotplug()
 [<b0134a42>] lock_cpu_hotplug+0x42/0x65
 [<b02f8af1>] cpufreq_update_policy+0x25/0xad
 [<b0358756>] kprobe_flush_task+0x18/0x40
 [<b0355aab>] schedule+0x63f/0x68b
 [<b01377c2>] __link_module+0x0/0x1f
 [<b0119e7d>] __cond_resched+0x16/0x34
 [<b03560bf>] cond_resched+0x26/0x31
 [<b0355b0e>] wait_for_completion+0x17/0xb1
 [<f965c547>] cpufreq_stat_cpu_callback+0x13/0x20 [cpufreq_stats]
 [<f9670074>] cpufreq_stats_init+0x74/0x8b [cpufreq_stats]
 [<b0137872>] sys_init_module+0x91/0x174
 [<b0102c81>] sysenter_past_esp+0x56/0x79

on 

zangetsu ~ # cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.73GHz
stepping        : 8
cpu MHz         : 1733.000
cache size      : 2048 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx up est tm2
bogomips        : 3460.58

If needed i can gave more info/config etc.

Cheers
-- 
S.Çağlar Onur <caglar@...dus.org.tr>
http://cekirdek.pardus.org.tr/~caglar/

Linux is like living in a teepee. No Windows, no Gates and an Apache in house!

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