Messages in this thread | | | From | "linux" <> | Subject | 2.4 kernel threads | Date | Thu, 19 May 2005 13:24:20 +0300 |
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While attempting to unload the kernel module which has created a kernel thread whoch runs perfectly i get this oops: Unable to handle kernel paging request at virtual address d08f364c printing eip: c011d6ff *pde = 01af0067 *pte = 00000000 Oops: 0002 parport_pc lp parport autofs pcnet_cs 8390 crc32 ds yenta_socket pcmcia_core floppy microcode ext3 jbd CPU: 0 EIP: 0060:[<c011d6ff>] Not tainted EFLAGS: 00010092
EIP is at interruptible_sleep_on_timeout [kernel] 0x4f (2.4.21-4.EL) eax: d08f3648 ebx: 00000286 ecx: 00000286 edx: d08f3648 esi: 000001c3 edi: 00000000 ebp: cc445fdc esp: cc445fb4 ds: 0068 es: 0068 ss: 0068 Process enigma (pid: 1622, stackpage=cc445000) Stack: 00000000 cc444000 d08f3648 d08f3648 00000000 00000003 00000656 00000656 d08f3060 00000000 cc445fec d08f310d 00000004 cc444000 00000000 c010945d d08f363c 00000000 00000000 Call Trace: [<c010945d>] kernel_thread_helper [kernel] 0x5 (0xcc445ff0)
Code: 89 50 04 89 02 c7 45 e4 00 00 00 00 c7 45 e0 00 00 00 00 53
Kernel panic: Fatal exception
The module is being unloaded with the following procedure: lock_kernel(); flag=1; /* This flag does a break in the for(;;) loop of the thread after the interruptible_sleep_on_timeout , after the break current=NULL;*/ mb(); kill_proc(pid_thread,SIGKILL,1); unlock_kernel(); kill_proc(2,SIGCHLD,1); /* assuming that keventd is running with PID 2 */
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