VFS problem

VFS problem

[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


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

Re: VFS problem

[Jaquemet Loic]

Jaquemet Loic a écrit :

> 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..
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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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 ?

Re: VFS problem

[Chris Mason]

On Wednesday, April 18, 2001 01:44:04 PM +0200 Jaquemet Loic
<jal@fleming.u-psud.fr> wrote:

> Jaquemet Loic a écrit :
> >> 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


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

-chris

Re: VFS problem

[Jaquemet Loic]

Chris Mason a écrit :

> On Wednesday, April 18, 2001 01:44:04 PM +0200 Jaquemet Loic
> <jal@fleming.u-psud.fr> wrote:
>
> > Jaquemet Loic a écrit :
> > >> 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
>
> Hmmm, are you sure there aren't any reiserfs messages on screen or in the
> log?
>
> -chris
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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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 ....