Kernel GPF

[Gilboa Davara]

On Fri, 2010-02-05 at 19:30 -0430, Patrick O'Callaghan wrote:
> On Fri, 2010-02-05 at 17:51 +0000, Bryn M. Reeves wrote:
> > >  [<ffffffff8110456d>] path_put+0x1a/0x27
> > >  [<ffffffff81095ba9>] audit_free_names+0x5b/0x7a
> > >  [<ffffffff81095da1>] audit_syscall_exit+0xb3/0x14c
> > >  [<ffffffff81011ea8>] sysret_audit+0x14/0x1e
> > 
> > Are the crashes you're seeing always in this set of functions (same
> > backtrace) or are you getting variations?
> 
> I started seeing wierd behaviour (NFS failures, sudden crash of KDE
> etc.) so I ran memtest and discovered some bad RAM in the 3-4Gb range.
> 
> I've rebooted using mem=2000M and we'll see what happens.
> 
> poc
> 

poc,

mem=2000m may not help, as your BIOS/chipset might be interleaving
memory from multiple banks.
I'd know more if you post your hardware configuration. (CPU,
Motherboard, number of DIMMs, etc.)

In general, you should disable interleaving in BIOS (if you
chipset/bios/CPU supports it) and fire up memtest (found on the Fedora
ISO's and at http://www.memtest.org/)
Let it run for ~12-24h.
If it find a bad DIMMs (usually in pairs), remove it and run memtest
again.

- Gilboa