Hi,
I am writting a kernel module with a thread that waits for accepting socket
connections (sock->ops->accept()). This thread is spawned from the init
function
and i am trying to kill the thread from the exit function using
kill_proc(tid, SIGKILL,1).
But as soon as i unload the module i get the following error.
Unable to handle kernel paging request at virtual address d296e337
printing eip:
d296e337
*pde = 01bae067
*pte = 00000000
Oops: 0000
i810_audio ac97_codec soundcore agpgart parport_pc lp parport nfsd lockd
sunrpc autofs ds yenta_socket pcmcia_core e100 keybdev
mousedev hid input usb-uhci eh
CPU: 0
EIP: 0060:[<d296e337>] Tainted: GF
EFLAGS: 00010246
EIP is at __insmod_i810_audio_S.data_L776 [i810_audio] 0x6077 (2.4.20-28.9)
eax: fffffe00 ebx: 00000000 ecx: cb1918e0 edx: fffffe00
esi: 00000000 edi: 00000000 ebp: c6449fec esp: c6449f84
ds: 0068 es: 0068 ss: 0068
Process insmod (pid: 3953, stackpage=c6449000)
Stack: cb1918c4 c64a5374 00000000 c0329da0 00000000 00000000 00000000
00000000
00000000 00000000 00000000 cff46b00 cff46b00 ced29e60 c0108d2e
cff46b00
d296e254 00000000 00000000 00000000 703d0002 0100007f 00000000
00000068
Call Trace: [<c0108d2e>] ret_from_fork [kernel] 0x6 (0xc6449fbc))
[<c0106fc1>] kernel_thread_helper [kernel] 0x5 (0xc6449ff0))
Code: Bad EIP value.
If i don't kill the thread then the unload happens without issues. Please do
help me out.
Regards,
- Praveen
http://www.patni.com
World-Wide Partnerships. World-Class Solutions.
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