Hi all,
Using linux-2.4.0-test11-pre7 right now..., here's what i did,
mount /mnt/cdrom
cd /mnt/cdrom
ls
Segmentation fault
ls
*NOT Responding....*
can't kill /sbin/ls
can't umount /mnt/cdrom
ps , shows ;
613 ? D 0:00 /bin/ls --color=auto -F -b -T 0
^^^^^
i didn't want to reboot...
CDRom door is locked..
BTW, what does D mean in ps?
thanks in advance,
-
Regards, Vincent <[email protected]>
"Albert D. Cahalan" wrote:
>
> The 'D' means that the process is running uninterruptable kernel
> code that should never take long to execute. Usually it means
> the process is doing disk IO.
>
> To find where process 613 is stuck, do this:
>
> ps -p 613 -o comm,stat,f,pcpu,nwchan,wchan
361 pts/1 D 0:00 /bin/ls --color=auto -F -b -T 0
t77@darkstar:~$ ps -p 361 -o comm,stat,f,pcpu,nwchan,wchan
COMMAND STAT F %CPU WCHAN WCHAN
ls D 000 0.0 107951 down
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no idea... :p since i am a
newbie,
is there anyway of killing such a process?
root@darkstar:~# umount /mnt/cdrom1
umount: /mnt/cdrom1: device is busy
root@darkstar:~# umount -f /mnt/cdrom1
umount2: Device or resource busy
umount: /mnt/cdrom1: device is busy
After playing around with ls ,i found that acutally executing /bin/ls
is ok, only because of the default alias of ls is alias ls='/bin/ls
$LS_OPTIONS' then
ls will crash...and thus make the cdrom useless.
When ls /mnt/cdrom , from a virtual terminal there are extended kernel
error messages which i don't
know howto copy the error message into memory or save it into a file.
Where
if i 'ls /mnt/cdrom' from a gnome-terminal the error message is just
Segmentation fault.
from /var/log/syslog after "ls /mnt/cdrom"
Nov 19 19:46:47 darkstar kernel: Unable to handle kernel paging request
at virtual address dfdfdfc4
Nov 19 19:46:47 darkstar kernel: *pde = 00000000
Unable to handle kernel paging request at virtual address dfdfdfc4
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c486d5a7>]
EFLAGS: 00010202 ............rest went off the screen
i've tried "ls >~/tmp/err.out" , it didn't work just a 0byte file.
hmmm, ok here it's in dmesg|less
Unable to handle kernel paging request at virtual address dfdfdfc4
printing eip:
c486d5a7
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0010:[<c486d5a7>]
EFLAGS: 00010202
eax: dfdfdf00 ebx: c2976960 ecx: c1ddb800 edx: c23f5c00
esi: c1ddb800 edi: c1ddb821 ebp: c233fba0 esp: c15b9eb0
ds: 0018 es: 0018 ss: 0018
Process ls (pid: 229, stackpage=c15b9000)
Stack: c2976960 c486a2bf c1ddb800 c2976960 c27f8000 c10a9df0 c1b3d140
c2976960
c1b3d140 00000001 c01e1818 00000022 00000022 00000000 0b976960
00000800
22994000 c486a3dd c2976960 c1b3d140 c27f8000 c27f8400 fffffff4
c1b3d140
Call Trace: [<c486a2bf>] [<c486a3dd>] [<c013502b>] [<c0135788>]
[<c0134dc7>] [<c0135d90>] [<c0132a26>]
[<c0108daf>]
Code: 8b 90 c4 00 00 00 80 b8 b4 00 00 00 00 74 1e 68 00 10 00 00
lines 76-116/116 (END)
thank you for reply,
-
Regards, Vincent <[email protected]>
On Sun, 19 Nov 2000 20:28:39 +1100,
Vincent <[email protected]> wrote:
>Nov 19 19:46:47 darkstar kernel: Unable to handle kernel paging request
>at virtual address dfdfdfc4
>Nov 19 19:46:47 darkstar kernel: *pde = 00000000
>EIP: 0010:[<c486d5a7>]
See linux/REPORTING-BUGS.
On Sun, 19 Nov 2000, Vincent wrote:
> Using linux-2.4.0-test11-pre7 right now..., here's what i did,
> mount /mnt/cdrom
> cd /mnt/cdrom
> ls
> Segmentation fault
> ls
> *NOT Responding....*
> can't kill /sbin/ls
> can't umount /mnt/cdrom
> ps , shows ;
>
> 613 ? D 0:00 /bin/ls --color=auto -F -b -T 0
> ^^^^^
>
> i didn't want to reboot...
> CDRom door is locked..
>
> BTW, what does D mean in ps?
It's somewhat comforting to know that someone else has the same problem as
I do. I'd be willing to bet that he's using SCSI hostadapter emulation
with this. I am, and it only started happening as soon as I enabled
it. Any ideas? I need the sg stuff for my CD recorder to work properly...
Kelsey Hudson [email protected]
Software Engineer
Compendium Technologies, Inc (619) 725-0771
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