Messages in this thread | | | From | Erik Meitner <> | Subject | 2.4.22-pac1 Oops when using /proc/cpufreq | Date | Wed, 3 Dec 2003 21:49:43 -0600 |
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Oops's occurr when trying to change CPU frequency(writing to /proc/cpufreq):
nx9:~# ksymoops < pac1-cpufreq-oops.txt ksymoops 2.4.5 on i686 2.4.22-pac1. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.22-pac1/ (default) -m /boot/System.map-2.4.22-pac1 (default)
Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options.
Unable to handle kernel NULL pointer dereference at virtual address 00000004 c01baf43 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[<c01baf43>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010246 eax: 00000000 ebx: ffffffff ecx: 00000000 edx: c9e5ff38 esi: 00000000 edi: 00000000 ebp: 00000014 esp: c9e5fee8 ds: 0018 es: 0018 ss: 0018 Process cpufreqd (pid: 525, stackpage=c9e5f000) Stack: 00000000 c9e5ff38 c9e5ff38 c0111dc0 c9e5ff38 00000000 c0122b75 c9e5ff38 00000000 c9e5ff38 c9e5ff38 00000014 c031959c c01bb3d3 c01bb416 c9e5ff38 00000000 cd7182c0 ffffffea 00000014 00000000 00000000 00000000 00000001 Call Trace: [<c0111dc0>] [<c0122b75>] [<c01bb3d3>] [<c01bb416>] [<c015279a>] [<c0134736>] [<c0106c5b>] Code: 83 7e 04 fe 74 2f 8d b4 26 00 00 00 00 8b 44 ce 04 83 f8 ff
>>EIP; c01baf43 <cpufreq_frequency_table_verify+53/d0> <=====
>>ebx; ffffffff <END_OF_CODE+3141ef00/????> >>edx; c9e5ff38 <_end+9aab03c/e813104> >>esp; c9e5fee8 <_end+9aaafec/e813104>
Trace; c0111dc0 <powernow_verify+10/20> Trace; c0122b75 <cpufreq_set_policy+75/210> Trace; c01bb3d3 <cpufreq_proc_write+53/b0> Trace; c01bb416 <cpufreq_proc_write+96/b0> Trace; c015279a <proc_file_write+2a/40> Trace; c0134736 <sys_write+96/f0> Trace; c0106c5b <system_call+33/38>
Code; c01baf43 <cpufreq_frequency_table_verify+53/d0> 00000000 <_EIP>: Code; c01baf43 <cpufreq_frequency_table_verify+53/d0> <===== 0: 83 7e 04 fe cmpl $0xfffffffe,0x4(%esi) <===== Code; c01baf47 <cpufreq_frequency_table_verify+57/d0> 4: 74 2f je 35 <_EIP+0x35> c01baf78 <cpufreq_frequency_table_verify+88/d0> Code; c01baf49 <cpufreq_frequency_table_verify+59/d0> 6: 8d b4 26 00 00 00 00 lea 0x0(%esi,1),%esi Code; c01baf50 <cpufreq_frequency_table_verify+60/d0> d: 8b 44 ce 04 mov 0x4(%esi,%ecx,8),%eax Code; c01baf54 <cpufreq_frequency_table_verify+64/d0> 11: 83 f8 ff cmp $0xffffffff,%eax
1 warning issued. Results may not be reliable.
nx9:~# cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 10 model name : mobile AMD Athlon(tm) XP2400+ stepping : 0 cpu MHz : 1788.929 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow bogomips : 3565.15
Please let me know if you need any more info.
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