Reading kernel fault dumps

QNX Newsgroups (Archives) qdn.public.qnx4
1

Hello,

I am trying to run down a kernel fault issue. In the QNX Knowledge Base,
there is an article on how to read the dump. It is a dated article. Here
it is:

http://www.qnx.com/support/sd_bok/solution.qnx?9545

In my dump, there is a line after the “kernel fault” line, formatted so:

(pid = , ‘’)

where is a process id, and is a fully
qualifed pathname to a program which was active when the fault occurred.

Exactly how does this program relate to the fault? Is it the last one
executing when the failure occurred? Is it the one whose interrupt caused
the fault? Was it merely making a kernel call when the fault occurred?

Please clarify this, I’m at a loss.

-Jim

Jim Parnell
WorldGate Communications, Inc.

P.S. - My customer rep is not returning my calls regarding Proc32N
P.P.S - The dump:

Version: 425.M Sep 05 2001 Technical Support: +1 (613) 591-0541
kernel fault ldt bb0 fault e+2
(pid = 343, ‘//1/home/user1/mpworker’)
cs:eip=f0:4c89 ss:esp=f8:14e4 efl=12202 ds=f0 es=e9 fs=0 gs=0
eax/201f7c ebx/1dd08 ecx/47f4ff4 edx/e9 esi/1dc50 edi/7 ebp/1500
Stack (f8:14a8)

2

I am trying to run down a kernel fault issue. In the QNX Knowledge Base,
there is an article on how to read the dump. It is a dated article. Here
it is:

http://www.qnx.com/support/sd_bok/solution.qnx?9545

In my dump, there is a line after the “kernel fault” line, formatted so:

(pid = , ‘’)

where is a process id, and is a fully
qualifed pathname to a program which was active when the fault occurred.

Exactly how does this program relate to the fault? Is it the last one
executing when the failure occurred? Is it the one whose interrupt caused
the fault? Was it merely making a kernel call when the fault occurred?

It inidicates that the process was the active process at the time of the
fault. There isn’t always a straight line correlation to the fault and the
process which happened to be active at the time.

P.S. - My customer rep is not returning my calls regarding Proc32N

Who is your customer Rep?

\

Cheers,
Adam

QNX Software Systems Ltd.
[ amallory@qnx.com ]

With a PC, I always felt limited by the software available.
On Unix, I am limited only by my knowledge.
–Peter J. Schoenster <pschon@baste.magibox.net>