Messages in this thread |  | | Date | Tue, 17 Sep 2002 20:33:16 UT | From | "Aravind Ceyardass" <> | Subject | Kernel Oops with spinlocks and modules in 2.5.30 |
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Hi,
I get a kernel oops when using wake_up_interruptible in modules. I traced it down to the spin_lock code
I also searched the kernel archive and found that many other people have also faced this problem. And it is supposed to do with gcc and as. But I could not find any information on the right version that I must use.
But i might be totally wrong in my conclusion, so I have included the oops file.
My environment. Processor: Pentium II Kernel: 2.5.30 Gcc package: 2.96-98 Binutils package: 2.11.93.0.2-11
thanks in advance
Aravind
----------oops file----------------------
No modules in ksyms, skipping objects Unable to handle kernel NULL pointer dereference at virtual address 00000003 c011424e *pde = 00000000 Oops: 0002 CPU: 0 EIP: 0010:[<c011424e>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010006 eax: 00000003 ebx: 00000206 ecx: 00000000 edx: c4838090 esi: 00000003 edi: 00000000 ebp: c25fff70 esp: c25fff68 ds: 0018 es: 0018 ss: 0018 Stack: c4838000 c26cb000 c25fff90 c48380a7 c48383d4 00000001 00000001 c1028018 c02d31c4 00000207 c26cb000 c0119b5e c4838000 c26cb000 00000000 c0118f53 c4838000 00000000 c25fe000 bffffc60 00000001 bfffeac8 c0107193 bffffc60 Call Trace: [<c48380a7>] [<c48383d4>] [<c0119b5e>] [<c0118f53>] [<c0107193>] Code: f0 fe 0e 0f 88 35 18 00 00 6a 00 51 52 56 e8 7f ff ff ff 83
>>EIP; c011424e <__wake_up+e/40> <===== Trace; c48380a7 <END_OF_CODE+44979eb/??? Trace; c48383d4 <END_OF_CODE+4497d18/??? Trace; c0119b5e <free_module+1e/d0> Trace; c0118f53 <sys_delete_module+123/250> Trace; c0107193 <syscall_call+7/b> Code; c011424e <__wake_up+e/40> 00000000 <_EIP>: Code; c011424e <__wake_up+e/40> <===== 0: f0 fe 0e lock decb (%esi) <===== Code; c0114251 <__wake_up+11/40> 3: 0f 88 35 18 00 00 js 183e <_EIP+0x183e> c0115a8c <.text.lock.sched+90/214> Code; c0114257 <__wake_up+17/40> 9: 6a 00 push $0x0 Code; c0114259 <__wake_up+19/40> b: 51 push %ecx Code; c011425a <__wake_up+1a/40> c: 52 push %edx Code; c011425b <__wake_up+1b/40> d: 56 push %esi Code; c011425c <__wake_up+1c/40> e: e8 7f ff ff ff call ffffff92 <_EIP+0xffffff92> c01141e0 <__wake_up_common+0/60> Code; c0114261 <__wake_up+21/40> 13: 83 00 00 addl $0x0,(%eax)
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