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VFS problem

DISCUSSION Jaquemet Loic 2 participants 4 messages Apr 18, 2001

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#0 lore raw

Sorry if this problem has already been disscussed.

I run an linux box with a HD 30Go/reiserfs .
I tried several 2.4 kernel ( 2.4.2 , 2.4.3 , 2.4.4-pre3 , 2.4.3-ac7) After a random time I've got a fs problem which lead to :
-first a segfault of a process which reads/writes on the partition ex:
[jal@skippy prog]$ ./configure
....
ln -s dialects/linux/machine.h machine.h
Erreur de segmentation ( SEGFAULT )

-and then the partition freeze .Any attempt to read/write on it leads to

put the process in a D state and makes it unkillable. [/var/log/kernel]

Apr 18 11:35:06 skippy kernel: VFS: Disk change detected on device
ide0(3,64)
...[Random time after]
Apr 18 11:55:26 skippy kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
Apr 18 11:55:26 skippy kernel:  printing eip:
Apr 18 11:55:26 skippy kernel: c019671a
Apr 18 11:55:26 skippy kernel: pgd entry c3f46000: 0000000000000000
Apr 18 11:55:26 skippy kernel: pmd entry c3f46000: 0000000000000000
Apr 18 11:55:26 skippy kernel: ... pmd not present!
Apr 18 11:55:26 skippy kernel: Oops: 0000
Apr 18 11:55:26 skippy kernel: CPU:    0

I will try with ac9 but I'm not really sure of the result..

#1 lore raw
Quoted 29 lines · Jaquemet Loic

Sorry if this problem has already been disscussed.

I run an linux box with a HD 30Go/reiserfs .
I tried several 2.4 kernel ( 2.4.2 , 2.4.3 , 2.4.4-pre3 , 2.4.3-ac7) After a random time I've got a fs problem which lead to :
-first a segfault of a process which reads/writes on the partition ex:
[jal@skippy prog]$ ./configure
....
ln -s dialects/linux/machine.h machine.h
Erreur de segmentation ( SEGFAULT )

-and then the partition freeze .Any attempt to read/write on it leads to

put the process in a D state and makes it unkillable. [/var/log/kernel]

Apr 18 11:35:06 skippy kernel: VFS: Disk change detected on device
ide0(3,64)
...[Random time after]
Apr 18 11:55:26 skippy kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
Apr 18 11:55:26 skippy kernel:  printing eip:
Apr 18 11:55:26 skippy kernel: c019671a
Apr 18 11:55:26 skippy kernel: pgd entry c3f46000: 0000000000000000
Apr 18 11:55:26 skippy kernel: pmd entry c3f46000: 0000000000000000
Apr 18 11:55:26 skippy kernel: ... pmd not present!
Apr 18 11:55:26 skippy kernel: Oops: 0000
Apr 18 11:55:26 skippy kernel: CPU:    0
Quoted 7 lines

I will try with ac9 but I'm not really sure of the result..

-
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Rectification : the VFS disk change is a normal event , and has no interaction with the kernel NULL pointer.
So , does someone has a clue ?

#2 lore raw
Quoted 11 lines · On Wednesday, April 18, 2001 01:44:04 PM +0200 Jaquemet Loic…
Quoted 10 lines · Jaquemet Loic
Quoted 2 lines

Sorry if this problem has already been disscussed.

Quoted 1 line

I run an linux box with a HD 30Go/reiserfs .

I tried several 2.4 kernel ( 2.4.2 , 2.4.3 , 2.4.4-pre3 , 2.4.3-ac7) After a random time I've got a fs problem which lead to :
-first a segfault of a process which reads/writes on the partition ex:
[jal@skippy prog]$ ./configure
....
ln -s dialects/linux/machine.h machine.h
Erreur de segmentation ( SEGFAULT )

Quoted 1 line
Quoted 1 line
Quoted 1 line
Quoted 1 line

-and then the partition freeze .Any attempt to read/write on it leads to

Hmmm, are you sure there aren't any reiserfs messages on screen or in the log?

-chris

#3 lore raw
Quoted 22 lines · Chris Mason
Quoted 11 lines · On Wednesday, April 18, 2001 01:44:04 PM +0200 Jaquemet Loic…
Quoted 10 lines · Jaquemet Loic
Quoted 2 lines

Sorry if this problem has already been disscussed.

Quoted 1 line

I run an linux box with a HD 30Go/reiserfs .

I tried several 2.4 kernel ( 2.4.2 , 2.4.3 , 2.4.4-pre3 , 2.4.3-ac7) After a random time I've got a fs problem which lead to :
-first a segfault of a process which reads/writes on the partition ex:
[jal@skippy prog]$ ./configure
....
ln -s dialects/linux/machine.h machine.h
Erreur de segmentation ( SEGFAULT )

Quoted 1 line
Quoted 1 line
Quoted 1 line
Quoted 1 line

-and then the partition freeze .Any attempt to read/write on it leads to

Hmmm, are you sure there aren't any reiserfs messages on screen or in the log?

(quoted diff) +0 -2
-chris
 
-
Quoted 4 lines

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Please read the FAQ at http://www.tux.org/lkml/

there's nothing on the screen neither ine the logs about reiserfs .. the onlys thing is that pointer NULL reference ..

Apr 18 11:55:26 skippy kernel: Unable to handle kernel NULL pointer dereference
at virtual address 00000000
Apr 18 11:55:26 skippy kernel:  printing eip:
Apr 18 11:55:26 skippy kernel: c019671a
Apr 18 11:55:26 skippy kernel: pgd entry c3f46000: 0000000000000000
Apr 18 11:55:26 skippy kernel: pmd entry c3f46000: 0000000000000000
Apr 18 11:55:26 skippy kernel: ... pmd not present!
Apr 18 11:55:26 skippy kernel: Oops: 0000
Apr 18 11:55:26 skippy kernel: CPU:    0

i've just changed 2.4.3ac7 to ac9 this ?morning? ( in france) . Waiting for the crash ....