[parisc-linux] evms_vgscan crash hppa kernel ... continue

[joel.soete@freebel.net]

Hi all,

I retry now with kernel 2.4.16-pa16 and evms cvs dated 2011-12-11 and
unfortunately it still crashes but at crash time I've got he following
interesting message to me:

--evms: Sector IO ioctl: Allocating sector buffer.
WARNING! Stack pointer and cr30 do not correspond!

.... a dump ...


Can some one explain me what it means and what can be the reason.
I post here the question because I see that it cames from
arch/parisc/kernel/traps.c but have no knowledge in the register naming for this
processor.

Thanks in advance for help,
        Joel


Quoting joel.soete@freebel.net:

> Quoting Matthew Wilcox <willy@debian.org>:
> 
> > On Wed, Nov 07, 2001 at 03:56:16PM +0100, joel.soete@freebel.net
> wrote:
> > > IASQ: 00000000 00000000 IAOQ: 1018c350 1018c354
> > >  IIR: 48fa0020    ISR: 00000000  IOR: faf00918
> > >  CPU:        0   CR30: 124fc000 CR31: 10348000
> > >  ORIG_R28: 124fc508
> > > 
> > > a "grep 1018c3 /boot/System.map"
> > > 1018c394 t evms_ioctl_cmd_get_minor
> > > 
> > > I would like to debug this by obtaining a core dump of the kernel
> > after the 
> > > reboot but I do not know how? (I did not find back the mail
> explaining
> > how to do 
> > > it in detail)
> > 
> > 1018c350 is before 1018c394, so it's actually in the previous
> function.
> 
> Well ... in System.map I found:
> 
> 1018bfc4 t evms_ioctl_cmd_get_logical_disk
> 1018c088 t evms_ioctl_cmd_get_logical_disk_info
> 1018c1c8 t evms_ioctl_cmd_sector_io
> 1018c394 t evms_ioctl_cmd_get_minor
> 1018c494 t evms_ioctl_cmd_get_volume_data
> 
> So it should be in 'evms_ioctl_cmd_sector_io', is it right?
> 
> Thank Matthew,
>     Joel
> 
> > 
> > -- 
> > Revolutions do not require corporate support.
> > 
> > 
> 
> 
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