last 541 kernel damages fileystem .. starting fresh FC3T2 candidate.

[Stephen C. Tweedie]

Hi,

On Wed, 2004-09-08 at 01:11, Janina Sajka wrote:

> Well, not exactly. But maybe what I do have may prove useful.
> Just in the last hour I've had a scarry experience. 
> 
> Situation: I noticed several dozen lynx cache files sitting in my $HOME.
> Since I wasn't in lynx, I figured it OK to rm L* -- bad choice. I
> froze..
> During the subsequent reboot the system froze during file system check.
> 
> So, I try going single user -- never got a shell prompt. Froze during
> /home check.

> Got this from both 541 UP and 541 SMP ...

Home-compiled?  The kernel announces as "2.6.8-1.541.rootsmp"

> general protection fault: 0000 [1] SMP
> RDX: 0080000000000000 RSI: 0000000000000010 RDI: 0000000000000032

and

> Unable to handle kernel paging request at 0000000000486680 RIP: 
...
> RDX: ffffffff80415168 RSI: 0000000000000001 RDI: 0080000000000000
> RBP: 0080000000000000 R08: ffffffff80415168 R09: 0000000100000000

The same nearly-zero-except-for-a-bit-flip pattern, 0080000000000000, in
the register dumps in both cases.  If you're getting GPFs and oopses in
such core functions as kfree() and find_get_pages(), accompanied by a
repeatable bit-flip patterns, it's most often a sign of hardware
trouble: bad memory or an overheating CPU.  

Cheers,
 Stephen