Red Hat Bugzilla – Bug 6074
Kernel 2.2.5-15 dereferences null pointer
Last modified: 2008-05-01 11:37:52 EDT
After installing RH6.0 on a machine that had been happily
running 5.1 for several months, I have run into a problem.
Another user (firstname.lastname@example.org) reports a similar
problem. Running with an off-the-shelf 6.0 kernel
(2.2.5-15.i586) on an AMD K6-2/333 with 32M memory, the
machine locked up with the following message in
Oct 7 17:36:50 mercury kernel: Unable to handle kernel NULL
pointer dereference at virtual address 00000004
For both of us, this problem seemed to occur while using
Netscape Communicator. I have since upgraded to 2.2.5-22
and have not seen the problem again, but I don't know what
web site/page I was looking at that caused the problem
initially, or even if it was data-dependent.
I have been unable to determine what changes occurred
between release 15 and release 22, though the upgrade center
indicates 22 fixes a potential for "remotely hanging the
Could someone verify whether this is a known or fixed
We'd need more information. If you could run the full oops text
through ksymoops, it would be helpful.
Does the 2.2.12 kernel from 6.1 still have this problem?
Assigned to dledford
Closed in the absence of further traffic