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SubjectUSB OOPS persists in 2.5.3-dj4
Similarly to what I reported for 2.5.3-dj1, the following big bunch of 
OOPSes occur when the usb-uhci module is unloaded. Something similar
happens with uhci, but I have not tested it. Removing usb-uhci appears
to leave usbcore in such a state that modprobing usb-uhci into the
kernel again causes instant lockup. Moreover, the system runs for a few
seconds (of typing, if that's important) after these oopses before it
completely deadlocks, no SysRQ or anything. However, this last time it
didn't deadlock for over ten seconds as I alternated between Alt-SysRq-s
and Alt-SysRq-u. Looks like it's something to do with locking? I've
memtest86ed the machine and don't believe memory corruption is to blame.

Kernel patched thus: 2.5.3, -dj4, ACPI (20020207), built with gcc-2.95.4
and binutils 2.11.92.0.12.3 (from Debian Woody). There were no other
modules loaded. Anything else I can offer?

ksymoops 2.4.3 on i686 2.5.3-dj4. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.5.3-dj4/ (default)
-m /boot/System.map-2.5.3-dj4 (default)

Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.

Feb 8 16:46:08 (none) kernel: c014a9a2
Feb 8 16:46:08 (none) kernel: Oops: 0000
Feb 8 16:46:08 (none) kernel: CPU: 0
Feb 8 16:46:08 (none) kernel: EIP: 0010:[<c014a9a2>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
Feb 8 16:46:08 (none) kernel: EFLAGS: 00010246
Feb 8 16:46:08 (none) kernel: eax: cefb8860 ebx: cf001340 ecx:
00000000 edx: cf001340
Feb 8 16:46:08 (none) kernel: esi: cfd42ba0 edi: 00000000 ebp:
cfd42ba0 esp: cef57f50
Feb 8 16:46:08 (none) kernel: ds: 0018 es: 0018 ss: 0018
Feb 8 16:46:08 (none) kernel: Stack: cf001340 cfd42ba0 00000000
00000001 c0138a54 cf001340 cfd42ba0 00000000
Feb 8 16:46:08 (none) kernel: cf001340 00000000 00000003
cfd42ba0 00000000 c011cc89 cf001340 cfd42ba0
Feb 8 16:46:08 (none) kernel: cfa5cda0 401804c4 cf0b6180
00000000 cfd42cc0 c011d434 cef56000 401804c4
Feb 8 16:46:08 (none) kernel: Call Trace: [<c0138a54>] [<c011cc89>]
[<c011d434>] [<c011d61a>] [<c0108a27>]
Feb 8 16:46:08 (none) kernel: Code: 83 b9 a8 00 00 00 00 0f 84 69 01 00
00 bb 00 e0 ff ff 21 e3

>>EIP; c014a9a2 <locks_remove_posix+12/190> <=====
Trace; c0138a54 <filp_close+98/a8>
Trace; c011cc88 <put_files_struct+4c/b4>
Trace; c011d434 <do_exit+11c/2dc>
Trace; c011d61a <sys_exit+e/10>
Trace; c0108a26 <syscall_call+6/a>
Code; c014a9a2 <locks_remove_posix+12/190>
00000000 <_EIP>:
Code; c014a9a2 <locks_remove_posix+12/190> <=====
0: 83 b9 a8 00 00 00 00 cmpl $0x0,0xa8(%ecx) <=====
Code; c014a9a8 <locks_remove_posix+18/190>
7: 0f 84 69 01 00 00 je 176 <_EIP+0x176> c014ab18
<locks_remove_posix+188/190>
Code; c014a9ae <locks_remove_posix+1e/190>
d: bb 00 e0 ff ff mov $0xffffe000,%ebx
Code; c014a9b4 <locks_remove_posix+24/190>
12: 21 e3 and %esp,%ebx

Feb 8 16:46:08 (none) kernel: <1>Unable to handle kernel NULL pointer
dereference at virtual address 000000a8
Feb 8 16:46:08 (none) kernel: c0139022
Feb 8 16:46:08 (none) kernel: Oops: 0000
Feb 8 16:46:08 (none) kernel: CPU: 0
Feb 8 16:46:08 (none) kernel: EIP: 0010:[<c0139022>] Not tainted
Feb 8 16:46:08 (none) kernel: EFLAGS: 00010202
Feb 8 16:46:08 (none) kernel: eax: cefb8860 ebx: cf001340 ecx:
00000000 edx: 00000000
Feb 8 16:46:08 (none) kernel: esi: 00000000 edi: 00000000 ebp:
00000080 esp: cf1e9fb0
Feb 8 16:46:08 (none) kernel: ds: 0018 es: 0018 ss: 0018
Feb 8 16:46:08 (none) kernel: Stack: cf1e8000 00000080 bffff89c
bffff85c c0108a27 00000000 bffff89c 00000080
Feb 8 16:46:08 (none) kernel: 00000080 bffff89c bffff85c
00000003 0000002b 0000002b 00000003 4012c4f4
Feb 8 16:46:08 (none) kernel: 00000023 00000293 bffff82c 0000002b
Feb 8 16:46:08 (none) kernel: Call Trace: [<c0108a27>]
Feb 8 16:46:08 (none) kernel: Code: 83 ba a8 00 00 00 00 74 35 8b 82 98
00 00 00 f6 40 28 40 74

>>EIP; c0139022 <sys_read+32/cc> <=====
Trace; c0108a26 <syscall_call+6/a>
Code; c0139022 <sys_read+32/cc>
00000000 <_EIP>:
Code; c0139022 <sys_read+32/cc> <=====
0: 83 ba a8 00 00 00 00 cmpl $0x0,0xa8(%edx) <=====
Code; c0139028 <sys_read+38/cc>
7: 74 35 je 3e <_EIP+0x3e> c0139060
<sys_read+70/cc>
Code; c013902a <sys_read+3a/cc>
9: 8b 82 98 00 00 00 mov 0x98(%edx),%eax
Code; c0139030 <sys_read+40/cc>
f: f6 40 28 40 testb $0x40,0x28(%eax)
Code; c0139034 <sys_read+44/cc>
13: 74 00 je 15 <_EIP+0x15> c0139036
<sys_read+46/cc>

Feb 8 16:46:08 (none) kernel: <1>Unable to handle kernel NULL pointer
dereference at virtual address 000000a8
Feb 8 16:46:08 (none) kernel: c014a9a2
Feb 8 16:46:08 (none) kernel: Oops: 0000
Feb 8 16:46:08 (none) kernel: CPU: 0
Feb 8 16:46:08 (none) kernel: EIP: 0010:[<c014a9a2>] Not tainted
Feb 8 16:46:08 (none) kernel: EFLAGS: 00010246
Feb 8 16:46:08 (none) kernel: eax: cefb8860 ebx: cf001340 ecx:
00000000 edx: cf001340
Feb 8 16:46:08 (none) kernel: esi: cee3ed60 edi: 00000000 ebp:
cee3ed60 esp: cf1e9e48
Feb 8 16:46:08 (none) kernel: ds: 0018 es: 0018 ss: 0018
Feb 8 16:46:08 (none) kernel: Stack: cf001340 cee3ed60 00000000
00000001 c0138a54 cf001340 cee3ed60 00000000
Feb 8 16:46:08 (none) kernel: cf001340 00000000 00000001
cee3ed60 00000000 c011cc89 cf001340 cee3ed60
Feb 8 16:46:08 (none) kernel: cfa5c8a0 cfa5c8a0 cee3b580
0000000b cee3ee80 c011d434 00000000 cfa5c8a0
Feb 8 16:46:08 (none) kernel: Call Trace: [<c0138a54>] [<c011cc89>]
[<c011d434>] [<c0108f8f>] [<c0115de5>]
Feb 8 16:46:08 (none) kernel: [<c0115a48>] [<c0115be7>] [<c0115a48>]
[<c0118496>] [<c0108b10>] [<c0139022>]
Feb 8 16:46:08 (none) kernel: [<c0108a27>]
Feb 8 16:46:08 (none) kernel: Code: 83 b9 a8 00 00 00 00 0f 84 69 01 00
00 bb 00 e0 ff ff 21 e3

>>EIP; c014a9a2 <locks_remove_posix+12/190> <=====
Trace; c0138a54 <filp_close+98/a8>
Trace; c011cc88 <put_files_struct+4c/b4>
Trace; c011d434 <do_exit+11c/2dc>
Trace; c0108f8e <die+62/64>
Trace; c0115de4 <do_page_fault+39c/4d0>
Trace; c0115a48 <do_page_fault+0/4d0>
Trace; c0115be6 <do_page_fault+19e/4d0>
Trace; c0115a48 <do_page_fault+0/4d0>
Trace; c0118496 <__put_task_struct+1e/24>
Trace; c0108b10 <error_code+34/3c>
Trace; c0139022 <sys_read+32/cc>
Trace; c0108a26 <syscall_call+6/a>
Code; c014a9a2 <locks_remove_posix+12/190>
00000000 <_EIP>:
Code; c014a9a2 <locks_remove_posix+12/190> <=====
0: 83 b9 a8 00 00 00 00 cmpl $0x0,0xa8(%ecx) <=====
Code; c014a9a8 <locks_remove_posix+18/190>
7: 0f 84 69 01 00 00 je 176 <_EIP+0x176> c014ab18
<locks_remove_posix+188/190>
Code; c014a9ae <locks_remove_posix+1e/190>
d: bb 00 e0 ff ff mov $0xffffe000,%ebx
Code; c014a9b4 <locks_remove_posix+24/190>
12: 21 e3 and %esp,%ebx

Feb 8 16:46:08 (none) kernel: c01183ee
Feb 8 16:46:08 (none) kernel: Oops: 0002
Feb 8 16:46:08 (none) kernel: CPU: 0
Feb 8 16:46:08 (none) kernel: EIP: 0010:[<c01183ee>] Not tainted
Feb 8 16:46:08 (none) kernel: EFLAGS: 00010086
Feb 8 16:46:08 (none) kernel: eax: 00000286 ebx: 00000000 ecx:
c02c8800 edx: cef9ff68
Feb 8 16:46:08 (none) kernel: esi: cef79360 edi: cef9ff68 ebp:
cef793c8 esp: cef9ff40
Feb 8 16:46:08 (none) kernel: ds: 0018 es: 0018 ss: 0018
Feb 8 16:46:08 (none) kernel: Stack: cef9e000 c0141c6e cfd31360
cef79360 00000080 fffffff5 00000000 cf0b6180
Feb 8 16:46:08 (none) kernel: 00000000 00000000 00000000
cf0b6180 cfd31364 cfd31364 c0141d43 cef79360
Feb 8 16:46:08 (none) kernel: cfa658a0 ffffffea 00000000
00000080 cef793c8 cef9e000 00000000 c0139086
Feb 8 16:46:08 (none) kernel: Call Trace: [<c0141c6e>] [<c0141d43>]
[<c0139086>] [<c0108a27>]
Feb 8 16:46:08 (none) kernel: Code: f0 fe 0b 0f 88 b4 12 00 00 8b 4a 0c
8b 52 08 89 4a 04 89 11

>>EIP; c01183ee <remove_wait_queue+6/24> <=====
Trace; c0141c6e <pipe_wait+8e/ac>
Trace; c0141d42 <pipe_read+b6/1fc>
Trace; c0139086 <sys_read+96/cc>
Trace; c0108a26 <syscall_call+6/a>
Code; c01183ee <remove_wait_queue+6/24>
00000000 <_EIP>:
Code; c01183ee <remove_wait_queue+6/24> <=====
0: f0 fe 0b lock decb (%ebx) <=====
Code; c01183f0 <remove_wait_queue+8/24>
3: 0f 88 b4 12 00 00 js 12bd <_EIP+0x12bd> c01196aa
<.text.lock.fork+18/11e>
Code; c01183f6 <remove_wait_queue+e/24>
9: 8b 4a 0c mov 0xc(%edx),%ecx
Code; c01183fa <remove_wait_queue+12/24>
c: 8b 52 08 mov 0x8(%edx),%edx
Code; c01183fc <remove_wait_queue+14/24>
f: 89 4a 04 mov %ecx,0x4(%edx)
Code; c0118400 <remove_wait_queue+18/24>
12: 89 11 mov %edx,(%ecx)

Feb 8 16:46:08 (none) kernel: <1>Unable to handle kernel NULL pointer
dereference at virtual address 000000a8
Feb 8 16:46:08 (none) kernel: c014a9a2
Feb 8 16:46:08 (none) kernel: Oops: 0000
Feb 8 16:46:08 (none) kernel: CPU: 0
Feb 8 16:46:08 (none) kernel: EIP: 0010:[<c014a9a2>] Not tainted
Feb 8 16:46:08 (none) kernel: EFLAGS: 00010246
Feb 8 16:46:08 (none) kernel: eax: cee8dbc0 ebx: cfa658a0 ecx:
00000000 edx: cfa658a0
Feb 8 16:46:08 (none) kernel: esi: cfd42380 edi: 00000000 ebp:
cfd42380 esp: cef9fdd8
Feb 8 16:46:08 (none) kernel: ds: 0018 es: 0018 ss: 0018
Feb 8 16:46:08 (none) kernel: Stack: cfa658a0 cfd42380 00000000
00000001 c0138a54 cfa658a0 cfd42380 00000000
Feb 8 16:46:08 (none) kernel: cfa658a0 00000000 00000001
cfd42380 00000000 c011cc89 cfa658a0 cfd42380
Feb 8 16:46:08 (none) kernel: cfa5c940 cfa5c940 cf0b6180
0000000b cfd424a0 c011d434 00000002 cfa5c940
Feb 8 16:46:08 (none) kernel: Call Trace: [<c0138a54>] [<c011cc89>]
[<c011d434>] [<c0108f8f>] [<c0115de5>]
Feb 8 16:46:08 (none) kernel: [<c0115a48>] [<c012b0fa>] [<c012c118>]
[<c012c145>] [<c0128648>] [<c0128d63>]
Feb 8 16:46:08 (none) kernel: [<c0108b10>] [<c01183ee>] [<c0141c6e>]
[<c0141d43>] [<c0139086>] [<c0108a27>]
Feb 8 16:46:08 (none) kernel: Code: 83 b9 a8 00 00 00 00 0f 84 69 01 00
00 bb 00 e0 ff ff 21 e3

>>EIP; c014a9a2 <locks_remove_posix+12/190> <=====
Trace; c0138a54 <filp_close+98/a8>
Trace; c011cc88 <put_files_struct+4c/b4>
Trace; c011d434 <do_exit+11c/2dc>
Trace; c0108f8e <die+62/64>
Trace; c0115de4 <do_page_fault+39c/4d0>
Trace; c0115a48 <do_page_fault+0/4d0>
Trace; c012b0fa <find_get_page+1a/2c>
Trace; c012c118 <filemap_nopage+94/1dc>
Trace; c012c144 <filemap_nopage+c0/1dc>
Trace; c0128648 <do_wp_page+74/1b0>
Trace; c0128d62 <handle_mm_fault+8a/bc>
Trace; c0108b10 <error_code+34/3c>
Trace; c01183ee <remove_wait_queue+6/24>
Trace; c0141c6e <pipe_wait+8e/ac>
Trace; c0141d42 <pipe_read+b6/1fc>
Trace; c0139086 <sys_read+96/cc>
Trace; c0108a26 <syscall_call+6/a>
Code; c014a9a2 <locks_remove_posix+12/190>
00000000 <_EIP>:
Code; c014a9a2 <locks_remove_posix+12/190> <=====
0: 83 b9 a8 00 00 00 00 cmpl $0x0,0xa8(%ecx) <=====
Code; c014a9a8 <locks_remove_posix+18/190>
7: 0f 84 69 01 00 00 je 176 <_EIP+0x176> c014ab18
<locks_remove_posix+188/190>
Code; c014a9ae <locks_remove_posix+1e/190>
d: bb 00 e0 ff ff mov $0xffffe000,%ebx
Code; c014a9b4 <locks_remove_posix+24/190>
12: 21 e3 and %esp,%ebx

Feb 8 16:46:08 (none) kernel: <1>Unable to handle kernel NULL pointer
dereference at virtual address 000000a8
Feb 8 16:46:08 (none) kernel: c014a9a2
Feb 8 16:46:08 (none) kernel: Oops: 0000
Feb 8 16:46:08 (none) kernel: CPU: 0
Feb 8 16:46:08 (none) kernel: EIP: 0010:[<c014a9a2>] Not tainted
Feb 8 16:46:08 (none) kernel: EFLAGS: 00010246
Feb 8 16:46:08 (none) kernel: eax: cee8dbc0 ebx: cf0011c0 ecx:
00000000 edx: cf0011c0
Feb 8 16:46:08 (none) kernel: esi: cfd421e0 edi: 00000000 ebp:
cfd421e0 esp: cf06bf50
Feb 8 16:46:08 (none) kernel: ds: 0018 es: 0018 ss: 0018
Feb 8 16:46:08 (none) kernel: Stack: cf0011c0 cfd421e0 00000000
00000001 c0138a54 cf0011c0 cfd421e0 00000000
Feb 8 16:46:08 (none) kernel: cf0011c0 00000000 00000001
cfd421e0 00000001 c011cc89 cf0011c0 cfd421e0
Feb 8 16:46:08 (none) kernel: cfa5c940 401804c4 cf0b4060
00000000 cfd42300 c011d434 cf06a000 401804c4
Feb 8 16:46:08 (none) kernel: Call Trace: [<c0138a54>] [<c011cc89>]
[<c011d434>] [<c011d61a>] [<c0108a27>]
Feb 8 16:46:08 (none) kernel: Code: 83 b9 a8 00 00 00 00 0f 84 69 01 00
00 bb 00 e0 ff ff 21 e3

>>EIP; c014a9a2 <locks_remove_posix+12/190> <=====
Trace; c0138a54 <filp_close+98/a8>
Trace; c011cc88 <put_files_struct+4c/b4>
Trace; c011d434 <do_exit+11c/2dc>
Trace; c011d61a <sys_exit+e/10>
Trace; c0108a26 <syscall_call+6/a>
Code; c014a9a2 <locks_remove_posix+12/190>
00000000 <_EIP>:
Code; c014a9a2 <locks_remove_posix+12/190> <=====
0: 83 b9 a8 00 00 00 00 cmpl $0x0,0xa8(%ecx) <=====
Code; c014a9a8 <locks_remove_posix+18/190>
7: 0f 84 69 01 00 00 je 176 <_EIP+0x176> c014ab18
<locks_remove_posix+188/190>
Code; c014a9ae <locks_remove_posix+1e/190>
d: bb 00 e0 ff ff mov $0xffffe000,%ebx
Code; c014a9b4 <locks_remove_posix+24/190>
12: 21 e3 and %esp,%ebx


1 warning issued. Results may not be reliable.


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