Deadlock in kernel on USB shutdown
----- Original Message -----
From: "Greg KH" <[email protected]>
To: "Roger Leblanc" <[email protected]>
Cc: <[email protected]>
Sent: Wednesday, January 02, 2002 9:40 AM
Subject: Re: Deadlock in kernel on USB shutdown
Quoted 24 lines
Quoted 24 lines · Roger Leblanc
Quoted 21 lines
Quoted 21 lines
Hi,
I just compiled version 2.4.17 of the Linux kernel for my Pentium III. It is compiled with modular USB support so I can run my USB scanner (an Epson Perfection 1200U).
The scanner works fine but the system freeses when I shut it down. I investigated a bit and found that in the file:
<kernel_root>/drivers/usb/usb.c
in function:usb_disconnect(struct usb_device **pdev)there is a call to function:
usbdevfs_remove_device(dev)
at line 2423.That is the exact point where it freeses. If I comment out that line, everything goes fine. I know! This is not the proper way to fix it! But at least, it fixes my problem. Since I'm not a kernel expert, I will leave it to you to find the right way to fix it.
Quoted 6 lines
Quoted 5 lines
Does the system lock up when you unload the usbcore module by hand without shutting the system down?
Are your init scripts unmounting the usbdevfs filesystem properly before trying to unload the usbcore module?
It doesn't get that far. The first thing my init script (or Mandrake 8.1 script) does at shutdown is to run modprobe -r on modules usb-ohci, usb-uhci and uhci. The system freeses when it gets to usb-uhci. It does it also if I run these commands on the command line.
Thanks
Roger
Quoted 4 lines · Roger Leblanc
It doesn't get that far. The first thing my init script (or Mandrake 8.1 script) does at shutdown is to run modprobe -r on modules usb-ohci, usb-uhci and uhci. The system freeses when it gets to usb-uhci. It does it also if I run these commands on the command line.
Have you unloaded your scanner module before unloading the usb-uhci module?
thanks,
greg k-h
Hi Greg,
Quoted 8 lines · Greg KH
Quoted 2 lines · Roger Leblanc
It doesn't get that far. The first thing my init script (or Mandrake 8.1 script) does at shutdown is to run modprobe -r on modules usb-ohci, usb-uhci and uhci. The system freeses when it gets to usb-uhci. It does it also if I run these commands on the command line.
Have you unloaded your scanner module before unloading the usb-uhci module?
No. Actually, I don't even know how it's called. How can I find out?
Thanks
Roger
Quoted 6 lines
thanks,
greg k-h
Quoted 6 lines · Roger Leblanc
Quoted 4 lines · Greg KH
Have you unloaded your scanner module before unloading the usb-uhci module?
No. Actually, I don't even know how it's called. How can I find out?
I think it's called "scanner". Just look for any module that the usbcore module shows as "Used by".
greg k-h
Hi,
Quoted 11 lines
Quoted 7 lines
Quoted 3 lines · Greg KH
Have you unloaded your scanner module before unloading the usb-uhci module?
No. Actually, I don't even know how it's called. How can I find out?
I think it's called "scanner". Just look for any module that the usbcore module shows as "Used by".
Mmmm, I should have guessed that one. Scanner is quite a good name for a scanner module ;-). Anyway, I moved things around so "scanner" and all the other device specific modules are unloaded before usb-uhci but yet, it doesn't help. It still freeses when unload usb-uhci. Any idea?
Thanks
Roger
Quoted 4 lines · Roger Leblanc
Mmmm, I should have guessed that one. Scanner is quite a good name for a scanner module ;-). Anyway, I moved things around so "scanner" and all the other device specific modules are unloaded before usb-uhci but yet, it doesn't help. It still freeses when unload usb-uhci. Any idea?
Hm, if you umount usbdevfs before unloading usb-uhci, does that work?
greg k-h
Quoted 7 lines · Greg KH
Quoted 2 lines · Roger Leblanc
Mmmm, I should have guessed that one. Scanner is quite a good name for a scanner module ;-). Anyway, I moved things around so "scanner" and all the other device specific modules are unloaded before usb-uhci but yet, it doesn't help. It still freeses when unload usb-uhci. Any idea?
Hm, if you umount usbdevfs before unloading usb-uhci, does that work?
umount seg-faults while unmounting /proc/bus/usb! Then modprobe also seg-faults while unloading usb-uhci!!! But the system stays up. After that, I cannot make my scanner to work even if I run ".../init.d/usb start".
B.T.W. Did I tell you that I can bring the kernel down just by turning the scanner off and then back again?
Confused Roger
Quoted 4 lines · Roger Leblanc
umount seg-faults while unmounting
/proc/bus/usb! Then modprobe also seg-faults while unloading usb-uhci!!! But the system stays up. After that, I cannot make my scanner to work even if I run ".../init.d/usb start".
Can you run that first oops through ksymoops and send it. Actually do it for both oopses.
Quoted 2 lines
B.T.W. Did I tell you that I can bring the kernel down just by turning the scanner off and then back again?
Hm, sounds like the scanner driver has some problems :)
You might email the author with this info and see if he has any ideas.
greg k-h
Quoted 9 lines · Greg KH
Quoted 3 lines · Roger Leblanc
umount seg-faults while unmounting
/proc/bus/usb! Then modprobe also seg-faults while unloading usb-uhci!!! But the system stays up. After that, I cannot make my scanner to work even if I run ".../init.d/usb start".Can you run that first oops through ksymoops and send it. Actually do it for both oopses.
Oops? I know about cores but I don't know about oopses. I'm only a C++, hight level, OO developer. Sorry ;-). Can you explain please?
Quoted 6 lines
Quoted 2 lines
B.T.W. Did I tell you that I can bring the kernel down just by turning the scanner off and then back again?
Hm, sounds like the scanner driver has some problems :)
You might email the author with this info and see if he has any ideas.
I'll do that
Thanks
Roger
Quoted 2 lines · Roger Leblanc
Oops? I know about cores but I don't know about oopses. I'm only a C++, hight level, OO developer. Sorry ;-). Can you explain please?
When the seg-fault happens, I am guessing that an oops message is sent to the kernel log. Look at 'dmesg'. Run that oops through ksymoops. See Documentation/oops-tracing.txt for more info on oopses and how to get info from them.
thanks,
greg k-h
Hi Greg,
Quoted 10 lines · Greg KH
When the seg-fault happens, I am guessing that an oops message is sent to the kernel log. Look at 'dmesg'. Run that oops through ksymoops. See
Documentation/oops-tracing.txtfor more info on oopses and how to get info from them.thanks,
greg k-h
Sorry for the delay.
I found a lot of oopses and I managed to separate them in two files (attached). Each of the files correspond approx. to the time when I had the 2 seg-faults.
Thanks a lot for all your help Greg. It is really appreciated.
Happy New Year!
Roger Leblanc
ksymoops 2.4.3 on i686 2.4.17. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.17/ (default)
-m /usr/src/linux/System.map (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.
Jan 2 21:00:23 roger kernel: <1>Unable to handle kernel paging request at virtual address a1ae3ae0 Jan 2 21:00:23 roger kernel: e614b46e Jan 2 21:00:23 roger kernel: Oops: 0000 Jan 2 21:00:23 roger kernel: CPU: 0 Jan 2 21:00:23 roger kernel: EIP: 0010:[scanner:__insmod_scanner_O/lib/modules/2.4.17/kernel/drivers/usb/sc+-41200530/96] Not tainted Jan 2 21:00:23 roger kernel: EIP: 0010:[<e614b46e>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 Jan 2 21:00:23 roger kernel: EFLAGS: 00010282 Jan 2 21:00:23 roger kernel: eax: c02b1466 ebx: dcd755a0 ecx: c031ade8 edx: 00000000 Jan 2 21:00:23 roger kernel: esi: e7ff91e0 edi: dcd75480 ebp: e252dba0 esp: e08fbf3c Jan 2 21:00:23 roger kernel: ds: 0018 es: 0018 ss: 0018 Jan 2 21:00:23 roger kernel: Process mozilla-bin (pid: 1986, stackpage=e08fb000) Jan 2 21:00:23 roger kernel: Stack: c01ff4b0 dcd755a0 dcd75480 c01ffa40 dcd755a0 ffffffff e517f8c0 00000000 Jan 2 21:00:23 roger kernel: e517f8c0 c01344ce dcd75480 e517f8c0 000080d4 00000014 09266be0 bf5ff4b4 Jan 2 21:00:23 roger kernel: e517f8c0 e517f8c0 00000000 bf5ff404 c013332d e517f8c0 e2745580 00000000 Jan 2 21:00:23 roger kernel: Call Trace: [sock_release+16/96] [sock_close+48/64] [fput+78/240] [filp_close+141/160] [sys_close+91/112] Jan 2 21:00:23 roger kernel: Call Trace: [<c01ff4b0>] [<c01ffa40>] [<c01344ce>] [<c013332d>] [<c013339b>] Jan 2 21:00:23 roger kernel: [<c0106f1b>] Jan 2 21:00:23 roger kernel: Code: 33 3c 7e b8 33 3c 7e b8 33 3c 0a 00 00 00 00 10 00 00 00 00
Quoted 1 line
Quoted 1 line
EIP;
e614b46e<_end+25e04bfa/2851978c> <=====
Trace; c01ff4b0 <sock_release+10/60>
Trace; c01ffa40 <sock_close+30/40>
Trace; c01344ce <fput+4e/f0>
Trace; c013332c <filp_close+8c/a0>
Trace; c013339a <sys_close+5a/70>
Trace; c0106f1a <system_call+32/38>
Code; e614b46e <_end+25e04bfa/2851978c>
00000000 <_EIP>:
Code; e614b46e <_end+25e04bfa/2851978c> <=====
0: 33 3c 7e xor (%esi,%edi,2),%edi <=====
Code; e614b470 <_end+25e04bfc/2851978c>
3: b8 33 3c 7e b8 mov $0xb87e3c33,%eax
Code; e614b476 <_end+25e04c02/2851978c>
8: 33 3c 0a xor (%edx,%ecx,1),%edi
Code; e614b478 <_end+25e04c04/2851978c>
b: 00 00 add %al,(%eax)
Code; e614b47a <_end+25e04c06/2851978c>
d: 00 00 add %al,(%eax)
Code; e614b47c <_end+25e04c08/2851978c>
f: 10 00 adc %al,(%eax)
Jan 2 21:00:23 roger kernel: <1>Unable to handle kernel paging request at virtual address a8b4e5e0 Jan 2 21:00:23 roger kernel: e614b46e Jan 2 21:00:23 roger kernel: Oops: 0000 Jan 2 21:00:23 roger kernel: CPU: 0 Jan 2 21:00:23 roger kernel: EIP: 0010:[scanner:__insmod_scanner_O/lib/modules/2.4.17/kernel/drivers/usb/sc+-41200530/96] Not tainted Jan 2 21:00:23 roger kernel: EIP: 0010:[<e614b46e>] Not tainted Jan 2 21:00:23 roger kernel: EFLAGS: 00010293 Jan 2 21:00:23 roger kernel: eax: c02b1466 ebx: e05aab20 ecx: c031ade8 edx: 00000000 Jan 2 21:00:23 roger kernel: esi: e7ff91e0 edi: e05aaa00 ebp: e06d28a0 esp: e17d7e48 Jan 2 21:00:23 roger kernel: ds: 0018 es: 0018 ss: 0018 Jan 2 21:00:23 roger kernel: Process mozilla-bin (pid: 1966, stackpage=e17d7000) Jan 2 21:00:23 roger kernel: Stack: c01ff4b0 e05aab20 e05aaa00 c01ffa40 e05aab20 ffffffff e04b5ce0 00000000 Jan 2 21:00:23 roger kernel: e04b5ce0 c01344ce e05aaa00 e04b5ce0 e17d4bfc e3679960 e7ffbce4 e3679960 Jan 2 21:00:23 roger kernel: 00007fff e04b5ce0 00000000 00000011 c013332d e04b5ce0 e2745580 00000000 Jan 2 21:00:23 roger kernel: Call Trace: [sock_release+16/96] [sock_close+48/64] [fput+78/240] [filp_close+141/160] [put_files_struct+77/208] Jan 2 21:00:23 roger kernel: Call Trace: [<c01ff4b0>] [<c01ffa40>] [<c01344ce>] [<c013332d>] [<c011881d>] Jan 2 21:00:23 roger kernel: [<c011901f>] [<c010ac98>] [<c0106dc4>] [<c013bf1a>] [<c01133c9>] [<c0106f54>]
Warning (Oops_read): Code line not seen, dumping what data is available
Quoted 1 line
Quoted 1 line
EIP;
e614b46e<_end+25e04bfa/2851978c> <=====
Trace; c01ff4b0 <sock_release+10/60>
Trace; c01ffa40 <sock_close+30/40>
Trace; c01344ce <fput+4e/f0>
Trace; c013332c <filp_close+8c/a0>
Trace; c011881c <put_files_struct+4c/d0>
Trace; c011901e <do_exit+10e/240>
Trace; c010ac98 <call_do_IRQ+6/e>
Trace; c0106dc4 <do_signal+244/2b0>
Trace; c013bf1a <pipe_write+20a/270>
Trace; c01133c8 <schedule+458/510>
Trace; c0106f54 <signal_return+14/18>
2 warnings issued. Results may not be reliable.
ksymoops 2.4.3 on i686 2.4.17. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.17/ (default)
-m /usr/src/linux/System.map (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.
Jan 2 21:00:38 roger kernel: <1>Unable to handle kernel paging request at virtual address aeed88e0 Jan 2 21:00:38 roger kernel: e614b46e Jan 2 21:00:38 roger kernel: Oops: 0000 Jan 2 21:00:38 roger kernel: CPU: 0 Jan 2 21:00:38 roger kernel: EIP: 0010:[scanner:__insmod_scanner_O/lib/modules/2.4.17/kernel/drivers/usb/sc+-41200530/96] Not tainted Jan 2 21:00:38 roger kernel: EIP: 0010:[<e614b46e>] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 Jan 2 21:00:38 roger kernel: EFLAGS: 00013297 Jan 2 21:00:38 roger kernel: eax: c02b1466 ebx: e376fca0 ecx: c031ade8 edx: 00000000 Jan 2 21:00:38 roger kernel: esi: e7ff91e0 edi: e376fb80 ebp: e3729440 esp: e5099f3c Jan 2 21:00:38 roger kernel: ds: 0018 es: 0018 ss: 0018 Jan 2 21:00:38 roger kernel: Process X (pid: 1628, stackpage=e5099000) Jan 2 21:00:38 roger kernel: Stack: c01ff4b0 e376fca0 e376fb80 c01ffa40 e376fca0 ffffffff e517f440 00000000 Jan 2 21:00:38 roger kernel: e517f440 c01344ce e376fb80 e517f440 0000000c e376fca0 e376fca0 0000000a Jan 2 21:00:38 roger kernel: e517f440 e517f440 00000000 bffff758 c013332d e517f440 e6de76c0 00000000 Jan 2 21:00:38 roger kernel: Call Trace: [sock_release+16/96] [sock_close+48/64] [fput+78/240] [filp_close+141/160] [sys_close+91/112] Jan 2 21:00:38 roger kernel: Call Trace: [<c01ff4b0>] [<c01ffa40>] [<c01344ce>] [<c013332d>] [<c013339b>] Jan 2 21:00:38 roger kernel: [<c0106f1b>] Jan 2 21:00:38 roger kernel: Code: 33 3c 7e b8 33 3c 7e b8 33 3c 0a 00 00 00 00 10 00 00 00 00
Quoted 1 line
Quoted 1 line
EIP;
e614b46e<_end+25e04bfa/2851978c> <=====
Trace; c01ff4b0 <sock_release+10/60>
Trace; c01ffa40 <sock_close+30/40>
Trace; c01344ce <fput+4e/f0>
Trace; c013332c <filp_close+8c/a0>
Trace; c013339a <sys_close+5a/70>
Trace; c0106f1a <system_call+32/38>
Code; e614b46e <_end+25e04bfa/2851978c>
00000000 <_EIP>:
Code; e614b46e <_end+25e04bfa/2851978c> <=====
0: 33 3c 7e xor (%esi,%edi,2),%edi <=====
Code; e614b470 <_end+25e04bfc/2851978c>
3: b8 33 3c 7e b8 mov $0xb87e3c33,%eax
Code; e614b476 <_end+25e04c02/2851978c>
8: 33 3c 0a xor (%edx,%ecx,1),%edi
Code; e614b478 <_end+25e04c04/2851978c>
b: 00 00 add %al,(%eax)
Code; e614b47a <_end+25e04c06/2851978c>
d: 00 00 add %al,(%eax)
Code; e614b47c <_end+25e04c08/2851978c>
f: 10 00 adc %al,(%eax)
Jan 2 21:00:38 roger kernel: <1>Unable to handle kernel paging request at virtual address b21b72a0 Jan 2 21:00:38 roger kernel: e614b46e Jan 2 21:00:38 roger kernel: Oops: 0000 Jan 2 21:00:38 roger kernel: CPU: 0 Jan 2 21:00:38 roger kernel: EIP: 0010:[scanner:__insmod_scanner_O/lib/modules/2.4.17/kernel/drivers/usb/sc+-41200530/96] Not tainted Jan 2 21:00:38 roger kernel: EIP: 0010:[<e614b46e>] Not tainted Jan 2 21:00:38 roger kernel: EFLAGS: 00013287 Jan 2 21:00:38 roger kernel: eax: c02b1466 ebx: e50df180 ecx: c031ade8 edx: 00000000 Jan 2 21:00:38 roger kernel: esi: e7ff91e0 edi: e50df060 ebp: e50d0760 esp: e5099d70 Jan 2 21:00:38 roger kernel: ds: 0018 es: 0018 ss: 0018 Jan 2 21:00:38 roger kernel: Process X (pid: 1628, stackpage=e5099000) Jan 2 21:00:38 roger kernel: Stack: c01ff4b0 e50df180 e50df060 c01ffa40 e50df180 ffffffff e4e7ff60 00000000 Jan 2 21:00:38 roger kernel: e4e7ff60 c01344ce e50df060 e4e7ff60 e4e22bfc e6ed1bc0 e7ffbce4 e6ed1bc0 Jan 2 21:00:38 roger kernel: 03ffff7f e4e7ff60 00000000 00000003 c013332d e4e7ff60 e6de76c0 00000000 Jan 2 21:00:38 roger kernel: Call Trace: [sock_release+16/96] [sock_close+48/64] [fput+78/240] [filp_close+141/160] [put_files_struct+77/208] Jan 2 21:00:38 roger kernel: Call Trace: [<c01ff4b0>] [<c01ffa40>] [<c01344ce>] [<c013332d>] [<c011881d>] Jan 2 21:00:38 roger kernel: [<c011901f>] [<c01122a0>] [<c0107464>] [<c0112698>] [<c01ff56c>] [<c01133c9>] Jan 2 21:00:38 roger kernel: [<c0190530>] [<c01122e0>] [<c010700c>] [<c01ff4b0>] [<c01ffa40>] [<c01344ce>] Jan 2 21:00:38 roger kernel: [<c013332d>] [<c013339b>] [<c0106f1b>] Jan 2 21:00:38 roger kernel: Code: 33 3c 7e b8 33 3c 7e b8 33 3c 0a 00 00 00 00 10 00 00 00 00
Quoted 1 line
Quoted 1 line
EIP;
e614b46e<_end+25e04bfa/2851978c> <=====
Trace; c01ff4b0 <sock_release+10/60>
Trace; c01ffa40 <sock_close+30/40>
Trace; c01344ce <fput+4e/f0>
Trace; c013332c <filp_close+8c/a0>
Trace; c011881c <put_files_struct+4c/d0>
Trace; c011901e <do_exit+10e/240>
Trace; c01122a0 <bust_spinlocks+50/60>
Trace; c0107464 <die+54/70>
Trace; c0112698 <do_page_fault+3b8/500>
Trace; c01ff56c <sock_sendmsg+6c/90>
Trace; c01133c8 <schedule+458/510>
Trace; c0190530 <normal_poll+110/130>
Trace; c01122e0 <do_page_fault+0/500>
Trace; c010700c <error_code+34/3c>
Trace; c01ff4b0 <sock_release+10/60>
Trace; c01ffa40 <sock_close+30/40>
Trace; c01344ce <fput+4e/f0>
Trace; c013332c <filp_close+8c/a0>
Trace; c013339a <sys_close+5a/70>
Trace; c0106f1a <system_call+32/38>
Code; e614b46e <_end+25e04bfa/2851978c>
00000000 <_EIP>:
Code; e614b46e <_end+25e04bfa/2851978c> <=====
0: 33 3c 7e xor (%esi,%edi,2),%edi <=====
Code; e614b470 <_end+25e04bfc/2851978c>
3: b8 33 3c 7e b8 mov $0xb87e3c33,%eax
Code; e614b476 <_end+25e04c02/2851978c>
8: 33 3c 0a xor (%edx,%ecx,1),%edi
Code; e614b478 <_end+25e04c04/2851978c>
b: 00 00 add %al,(%eax)
Code; e614b47a <_end+25e04c06/2851978c>
d: 00 00 add %al,(%eax)
Code; e614b47c <_end+25e04c08/2851978c>
f: 10 00 adc %al,(%eax)
Jan 2 21:00:38 roger kernel: <1>Unable to handle kernel paging request at virtual address ab7068e0 Jan 2 21:00:38 roger kernel: e614b46e Jan 2 21:00:38 roger kernel: Oops: 0000 Jan 2 21:00:38 roger kernel: CPU: 0 Jan 2 21:00:38 roger kernel: EIP: 0010:[scanner:__insmod_scanner_O/lib/modules/2.4.17/kernel/drivers/usb/sc+-41200530/96] Not tainted Jan 2 21:00:38 roger kernel: EIP: 0010:[<e614b46e>] Not tainted Jan 2 21:00:38 roger kernel: EFLAGS: 00010286 Jan 2 21:00:38 roger kernel: eax: c02b1466 ebx: e1b86ca0 ecx: c031ade8 edx: 00000000 Jan 2 21:00:38 roger kernel: esi: e7ff91e0 edi: e1b86b80 ebp: e1bac1a0 esp: e33a9f3c Jan 2 21:00:38 roger kernel: ds: 0018 es: 0018 ss: 0018 Jan 2 21:00:38 roger kernel: Process ksmserver (pid: 1964, stackpage=e33a9000) Jan 2 21:00:38 roger kernel: Stack: c01ff4b0 e1b86ca0 e1b86b80 c01ffa40 e1b86ca0 ffffffff e1c685e0 00000000 Jan 2 21:00:38 roger kernel: e1c685e0 c01344ce e1b86b80 e1c685e0 e1bcd2e0 c0141932 e1bcd2e0 00000004 Jan 2 21:00:38 roger kernel: e1c685e0 e1c685e0 00000000 bfffef58 c013332d e1c685e0 e2745a60 00000000 Jan 2 21:00:38 roger kernel: Call Trace: [sock_release+16/96] [sock_close+48/64] [fput+78/240] [sys_select+1138/1152] [filp_close+141/160] Jan 2 21:00:38 roger kernel: Call Trace: [<c01ff4b0>] [<c01ffa40>] [<c01344ce>] [<c0141932>] [<c013332d>] Jan 2 21:00:38 roger kernel: [<c013339b>] [<c0106f1b>] Jan 2 21:00:38 roger kernel: Code: 33 3c 7e b8 33 3c 7e b8 33 3c 0a 00 00 00 00 10 00 00 00 00
Quoted 1 line
Quoted 1 line
EIP;
e614b46e<_end+25e04bfa/2851978c> <=====
Trace; c01ff4b0 <sock_release+10/60>
Trace; c01ffa40 <sock_close+30/40>
Trace; c01344ce <fput+4e/f0>
Trace; c0141932 <sys_select+472/480>
Trace; c013332c <filp_close+8c/a0>
Trace; c013339a <sys_close+5a/70>
Trace; c0106f1a <system_call+32/38>
Code; e614b46e <_end+25e04bfa/2851978c>
00000000 <_EIP>:
Code; e614b46e <_end+25e04bfa/2851978c> <=====
0: 33 3c 7e xor (%esi,%edi,2),%edi <=====
Code; e614b470 <_end+25e04bfc/2851978c>
3: b8 33 3c 7e b8 mov $0xb87e3c33,%eax
Code; e614b476 <_end+25e04c02/2851978c>
8: 33 3c 0a xor (%edx,%ecx,1),%edi
Code; e614b478 <_end+25e04c04/2851978c>
b: 00 00 add %al,(%eax)
Code; e614b47a <_end+25e04c06/2851978c>
d: 00 00 add %al,(%eax)
Code; e614b47c <_end+25e04c08/2851978c>
f: 10 00 adc %al,(%eax)
Jan 2 21:00:38 roger kernel: <1>Unable to handle kernel paging request at virtual address aba84920 Jan 2 21:00:38 roger kernel: e614b46e Jan 2 21:00:38 roger kernel: Oops: 0000 Jan 2 21:00:38 roger kernel: CPU: 0 Jan 2 21:00:38 roger kernel: EIP: 0010:[scanner:__insmod_scanner_O/lib/modules/2.4.17/kernel/drivers/usb/sc+-41200530/96] Not tainted Jan 2 21:00:38 roger kernel: EIP: 0010:[<e614b46e>] Not tainted Jan 2 21:00:38 roger kernel: EFLAGS: 00010213 Jan 2 21:00:38 roger kernel: eax: c02b1466 ebx: e1d45cc0 ecx: c031ade8 edx: 00000000 Jan 2 21:00:38 roger kernel: esi: e7ff91e0 edi: e1d45ba0 ebp: e1d1e0a0 esp: e33a9d70 Jan 2 21:00:38 roger kernel: ds: 0018 es: 0018 ss: 0018 Jan 2 21:00:38 roger kernel: Process ksmserver (pid: 1964, stackpage=e33a9000) Jan 2 21:00:38 roger kernel: Stack: c01ff4b0 e1d45cc0 e1d45ba0 c01ffa40 e1d45cc0 ffffffff e61a8120 00000000 Jan 2 21:00:38 roger kernel: e61a8120 c01344ce e1d45ba0 e61a8120 e2dacbfc e3679b40 e7ffbce4 e3679b40 Jan 2 21:00:38 roger kernel: 00007fef e61a8120 00000000 00000003 c013332d e61a8120 e2745a60 00000000 Jan 2 21:00:38 roger kernel: Call Trace: [sock_release+16/96] [sock_close+48/64] [fput+78/240] [filp_close+141/160] [put_files_struct+77/208] Jan 2 21:00:38 roger kernel: Call Trace: [<c01ff4b0>] [<c01ffa40>] [<c01344ce>] [<c013332d>] [<c011881d>] Jan 2 21:00:38 roger kernel: [<c011901f>] [<c01122a0>] [<c0107464>] [<c0112698>] [<c010657a>] [<c01066d4>] Jan 2 21:00:38 roger kernel: [<c01122e0>] [<c010700c>] [<c01ff4b0>] [<c01ffa40>] [<c01344ce>] [<c0141932>] Jan 2 21:00:38 roger kernel: [<c013332d>] [<c013339b>] [<c0106f1b>] Jan 2 21:00:38 roger kernel: Code: 33 3c 7e b8 33 3c 7e b8 33 3c 0a 00 00 00 00 10 00 00 00 00
Quoted 1 line
Quoted 1 line
EIP;
e614b46e<_end+25e04bfa/2851978c> <=====
Trace; c01ff4b0 <sock_release+10/60>
Trace; c01ffa40 <sock_close+30/40>
Trace; c01344ce <fput+4e/f0>
Trace; c013332c <filp_close+8c/a0>
Trace; c011881c <put_files_struct+4c/d0>
Trace; c011901e <do_exit+10e/240>
Trace; c01122a0 <bust_spinlocks+50/60>
Trace; c0107464 <die+54/70>
Trace; c0112698 <do_page_fault+3b8/500>
Trace; c010657a <setup_sigcontext+da/120>
Trace; c01066d4 <setup_frame+114/210>
Trace; c01122e0 <do_page_fault+0/500>
Trace; c010700c <error_code+34/3c>
Trace; c01ff4b0 <sock_release+10/60>
Trace; c01ffa40 <sock_close+30/40>
Trace; c01344ce <fput+4e/f0>
Trace; c0141932 <sys_select+472/480>
Trace; c013332c <filp_close+8c/a0>
Trace; c013339a <sys_close+5a/70>
Trace; c0106f1a <system_call+32/38>
Code; e614b46e <_end+25e04bfa/2851978c>
00000000 <_EIP>:
Code; e614b46e <_end+25e04bfa/2851978c> <=====
0: 33 3c 7e xor (%esi,%edi,2),%edi <=====
Code; e614b470 <_end+25e04bfc/2851978c>
3: b8 33 3c 7e b8 mov $0xb87e3c33,%eax
Code; e614b476 <_end+25e04c02/2851978c>
8: 33 3c 0a xor (%edx,%ecx,1),%edi
Code; e614b478 <_end+25e04c04/2851978c>
b: 00 00 add %al,(%eax)
Code; e614b47a <_end+25e04c06/2851978c>
d: 00 00 add %al,(%eax)
Code; e614b47c <_end+25e04c08/2851978c>
f: 10 00 adc %al,(%eax)
Jan 2 21:00:38 roger kernel: <1>Unable to handle kernel paging request at virtual address a92eece0 Jan 2 21:00:38 roger kernel: e614b46e
1 warning issued. Results may not be reliable.