kernel/1029: 2.6 kernel crashes

["Brian R. Landy" <landy@alumni.caltech.edu>]

>Number:         1029
>Category:       kernel
>Synopsis:       various, frequent, kernel crashes in 2.6
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Dec 26 21:50:01 MST 1999
>Last-Modified:
>Originator:     Brian R. Landy
>Organization:
net
>Release:        2.6
>Environment:

System      : OpenBSD 2.6
Architecture: OpenBSD.i386
Machine     : i386
>Description:
After upgrading from 2.5 -> 2.6, I get frequent kernel crashes,
sometimes 2 or 3 in an evening.  I haven't been able to find
a way to reproduce the problem at will.  I've gone back to
running the 2.5 kernel, leaving everything else at 2.6, and
no longer have any problems.  Here are the last 4 crashes I had
(the first ones I recorded):

On a custom compiled, non-patched, 2.6 kernel:
kernel: privileged instruction fault trap, code=0
stopped at _pn_newbuf+0xb0 movl _cpl,%esi

On the stock 2.6 GENERIC kernel, had this one twice:
panic: ipintr no HDR
stopped at _debugger+0x4: leave

On a custom compiled 2.6 kernel, with a number of the patches,
including ATAPI and poll:
vm_fault (0xe0a68b00, 157d000, 1, 0) -> 1
kernel: page fault trap, code=0
stopped at _m_freem+0x14: movl _cpl,%edx

The system is an 83MHz pentium overdrive in a 486 PCI motherboard.
I have a Linksys (pn0) ethernet card running at 100Mbps.


>How-To-Repeat:
Don't know how to recreate, but it usually seems I have a lot
of network activity going while it crashes.
>Fix:
2.5 kernel :(


>Audit-Trail:
>Unformatted: