On Friday 20 November 2009 18:08:12 Eric Sandeen wrote:
> Eric Sandeen wrote:
> > Juergen Urban wrote:
> >> On Thursday 19 November 2009 19:00:16 Eric Sandeen wrote:
> >>> Juergen Urban wrote:
> >>>> Hello,
> >>>> my machine is running very unstable since I use XFS on an external USB
> >>>> harddisc (855 GByte XFS partition on 1TByte). One problem was the
> >>>> stack overflows caused by the large stack use of XFS, USB, SCSI and
> >>>> VFS in Linux 22.214.171.124. NFS on XFS caused much more stack overflows. I
> >>>> think I got around the stack overflows by disabling preemption, SMP
> >>>> and NFS in Linux, but I am not sure about it. I think that I didn't
> >>>> got a message from the stack overflow detection after this.
> >>> Are you on 4k stacks? To be honest I'd still expect things to be
> >>> mostly ok stack-wise even if so.
> >> No, I am using 8k stacks.
> > Hmm.
> BTW if you are still seeing stack overflows when testing w/ the newer
> kernel, we can use some tracing to see what the stack backtrace is:
> sysctl -w kernel.stack_tracer_enabled=1
> mount -t debugfs none /sys/kernel/debug/
> and then look in:
I don't think that I still get stack overflows in Linux 126.96.36.199.
Now I downloaded the new KNOPPIX with Linux 188.8.131.52. I've got also crashes
with it, but this also could be a stack overflow, because the kernel
configuration includes SMP and preemption. The problem here is that I don't see
any kernel message. I just see the blinking keyboard or sometimes even
nothing. To get the error I just need to play video with mplayer and don't
need to write to the file system at all. I need to wait until I've got a good
backtrace, but this will be with Linux 184.108.40.206.
The console tools of my installed Debian can't configure or use /dev/tty[0-9]*
of Linux 220.127.116.11. The ioctls are not supported. I installed a newer version
of the package, but this doesn't help. I copied the ".config" from Linux
18.104.22.168 to 22.214.171.124. Maybe this is not compatible.