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Subject2.1.66 smbfs oops
linux-2.1.66: smbfs seems to have trouble reconnecting. Sometimes it works
but usually it doesn't... (connection are to NT).

Anyhow... I though I'd be clever and send smbclient a SIGUSR1 to help it
along... (yeah, did dumb shit as a kid too)


NULL pointer dereference at virtual address 00000004
current->tss.cr3 = 0080a000, Lr3 = 0080a000
*pde = 00000000
Oops: 0002
CPU: 0
EIP: 0010:[<c0154c53>]
EFLAGS: 00010286
eax: 00000000 ebx: 00000000 ecx: c26e7f18 edx: c5c61f88
esi: c2848000 edi: c46e6340 ebp: c46e6358 esp: c2849d90
ds: 0018 es: 0018 ss: 0018
Process df (pid: 1772, process nr: 36, stackpage=c2849000)
Stack: c46e6340 00000000 c2849e44 00000004 00000246 c46e6514 00000000 c2848000
00000001 00000000 c46e6450 c2848000 c54bc930 041ae2bd c0161d06 c46e6340
c2849e44 00000004 00000000 00000000 c2849df4 c2849e30 00000004 c2849e44
Call Trace: [<c0161d06>] [<c682429c>] [<c0161c54>] [<c68246ad>] [<c6829000>]
[<c6824708>] [<c6829000>] [<c6829000>] [<c68244e8>] [<c68247c7>]
[<c6829000>] [<c6824c6a>] [<c6821b45>] [<c6823733>] [<c6825802>]
[<c01299c0>] [<c01213c9>] [<c010923a>]
Code: 81 60 04 ff ff fd ff ff 47 2c e9 3e 01 00 00 89 f6 ff 43 6c
[root:1] caffeine:~# ./ksymoops /System.map < oops1
Using /System.map' to map addresses to symbols.

>>EIP: c0154c53 <tcp_recvmsg+2eb/4e4>
Trace: c0161d06 <inet_recvmsg+b2/cc>
Trace: c682429c
Trace: c0161d06 <inet_recvmsg+b2/cc>
Trace: c68246ad
Trace: c6829000
Trace: c6824708
Trace: c6829000
Trace: c6829000
Trace: c68244e8
Trace: c68247c7
Trace: c6829000
Trace: c6824c6a
Trace: c6821b45
Trace: c6823733
Trace: c6825802
Trace: c01299c0 <lookup_dentry+17c/1bc>
Trace: c01213c9 <sys_statfs+3d/54>
Trace: c010923a <system_call+3a/40>
Code: c0154c53 <tcp_recvmsg+2eb/4e4>
Code: c0154c53 <tcp_recvmsg+2eb/4e4> 81 60 04 ff ff andl
$0xfffdffff,0x4(%eax)
Code: c0154c5a <tcp_recvmsg+2f2/4e4> ff 47 2c incl 0x2c(%edi)
Code: c0154c63 <tcp_recvmsg+2fb/4e4> e9 3e 01 00 00 jmp c0154da0
<tcp_recvmsg+438/4e4>
Code: c0154c68 <tcp_recvmsg+300/4e4> 89 f6 movl %esi,%esi
Code: c0154c6a <tcp_recvmsg+302/4e4> ff 43 6c incl 0x6c(%ebx)

Not sure why it died there... not sure why gcc generates "movl %esi,%esi"
either.

-Chris

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