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Subjectkernel bug (null pointer) in 2.6.27-rc1
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Hi all,

(pleace Cc)

Got that just now ...

BUG: unable to handle kernel NULL pointer dereference at 00000002
IP: [<c011bad5>] sched_mc_power_savings_store+0x0/0x2c
*pde = 00000000
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: binfmt_misc nls_utf8 fuse dm_crypt dm_mod kvm_intel kvm coretemp tifm_7xx1 gspca_vc032x tifm_core gspca_main nsc_ircc joydev iwl3945 videodev v4l1_compat rfkill mac80211 irda crc_ccitt firewire_ohci firewire_core crc_itu_t

Pid: 4144, comm: sched-powersave Not tainted (2.6.27-rc1 #1)
EIP: 0060:[<c011bad5>] EFLAGS: 00010282 CPU: 0
EIP is at sched_mc_power_savings_store+0x0/0x2c
EAX: c0434498 EBX: c011bad5 ECX: 00000002 EDX: e9135000
ESI: c04344bc EDI: e9135000 EBP: c04344bc ESP: e9133f48
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process sched-powersave (pid: 4144, ti=e9132000 task=f7934810 task.ti=e9132000)
Stack: c02300db c04341f8 f781fd1c f7e25400 c0195442 00000002 0849e408 e90784c0
f7e25414 c04341f8 00000002 e90784c0 c0195392 0849e408 c016433a e9133fa0
e90784c0 fffffff7 0849e408 e9132000 c016442a e9133fa0 00000000 00000000
Call Trace:
[<c02300db>] sysdev_class_store+0x1e/0x22
[<c0195442>] sysfs_write_file+0xb0/0xdd
[<c0195392>] sysfs_write_file+0x0/0xdd
[<c016433a>] vfs_write+0x7e/0xd6
[<c016442a>] sys_write+0x3c/0x63
[<c0102dfe>] syscall_call+0x7/0xb
[<c0350000>] tg3_init_one+0xaf2/0x1010
=======================
Code: c0 c3 31 c0 31 c9 31 d2 e8 bb fd ff ff b8 01 00 00 00 c3 e8 ce 4d 00 00 31 c0 31 c9 31 d2 e8 a5 fd ff ff e8 22 4f 00 00 31 c0 c3 <8a> 09 ba ea ff ff ff 8d 41 d0 3c 01 77 1b 31 c0 80 f9 31 0f 94
EIP: [<c011bad5>] sched_mc_power_savings_store+0x0/0x2c SS:ESP 0068:e9133f48
---[ end trace f43d02115764e57e ]---


kernel config and all other if one needs it.

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at> Vienna University of Technology
Debian Developer <preining@debian.org> Debian TeX Group
gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
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