Date: Mon, 3 May 2010 17:37:30 -0500 From: Brandon Gooch <jamesbrandongooch@gmail.com> To: David DEMELIER <demelier.david@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Kernel panic when unpluggin AC adaptor Message-ID: <s2g179b97fb1005031537w2b15d8cah75f65873c450c934@mail.gmail.com> In-Reply-To: <m2mb3954bba1005031457h642b551fq5c9062af8cbdf7d1@mail.gmail.com> References: <g2mb3954bba1005031436g77215426n83ce7904e5ef321@mail.gmail.com> <m2mb3954bba1005031457h642b551fq5c9062af8cbdf7d1@mail.gmail.com>
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On Mon, May 3, 2010 at 4:57 PM, David DEMELIER <demelier.david@gmail.com> wrote:
> 2010/5/3 David DEMELIER <demelier.david@gmail.com>:
>> Hi,
>>
>> I just updated my 8.0-STABLE/amd64 today around 17h CEST, and it just
>> panics when I unplug my AC. The current process = 11 (idle: cpu1) is
>> this related to the cpufreq and related stuff ?
>>
>> It also says cannot dump. Device not defined or unavailable so I can't
>> give you more infos now.
>>
>
> I can confirm that :
>
> #performance_cx_lowest="HIGH"
> #performance_cpu_freq=${performance_cx_lowest}
> #economy_cx_lowest="LOW"
> #economy_cpu_freq=${economy_cx_lowest}
>
> in rc.conf was the problem.
Can you get a backtrace? I've been experiencing something strange
lately after applying optimization settings from:
http://wiki.freebsd.org/TuningPowerConsumption
I can't get a useful dump either, the machine is idle, and the
backtrace is strange to me:
db> show allpcpu
Current CPU: 0
cpuid = 0
dynamic pcpu = 0x692d00
curthread = 0xffffff0001507390: pid 11 "idle: cpu0"
curpcb = 0xffffff8000039d40
fpcurthread = none
idlethread = 0xffffff0001507390: pid 11 "idle: cpu0"
curpmap = 0
tssp = 0xffffffff80840580
commontssp = 0xffffffff80840580
rsp0 = 0xffffff8000039d40
gs32p = 0xffffffff8083f3b8
ldt = 0xffffffff8083f3f8
tss = 0xffffffff8083f3e8
cpuid = 1
dynamic pcpu = 0xffffff807f85ed00
curthread = 0xffffff0001507720: pid 11 "idle: cpu1"
curpcb = 0xffffff8000034d40
fpcurthread = none
idlethread = 0xffffff0001507720: pid 11 "idle: cpu1"
curpmap = 0
tssp = 0xffffffff808405e8
commontssp = 0xffffffff808405e8
rsp0 = 0xffffff8000034d40
gs32p = 0xffffffff8083f420
ldt = 0xffffffff8083f460
tss = 0xffffffff8083f450
db> bt
Tracing pid 11 tid 100004 td 0xffffff0001507390
rman_get_bushandle() at rman_get_bushandle+0x1
sched_idletd() at sched_idletd+0x123
fork_exit() at fork_exit+0x118
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffff8000039d30, rbp = 0 ---
-Brandon
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