Red Hat Bugzilla – Bug 105618
Boot disk crashes/reboots machine - machine then fails self tests
Last modified: 2007-04-18 12:57:50 EDT
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; Q312461)
Description of problem:
When booting from the floppy boot disk, the machine gets past the "Loading
initrd..." and the kernel starts running. Some text briefly flickers on the
screen (looks like memory probing) and then the machine reboots. The time
between the kernel starting and the spontaneous reboot is so fast I can't tell
how far the kernel got during the boot.
When the machine comes back up (from the reboot) it fails many self tests
during boot (memory, cache memory, CPU, floppy). The machine has been running
RH 7.3 for about a year without problems. Memtest86 reports no problems over a
24 hour run.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Create boot disk from /images/bootdisk.img on CD #1.
2. Boot machine.
Actual Results: Machine reboots immediately after loading kernel.
Expected Results: Expect kernel to start.
I tried passing mem=24M, mem=32M and noapic to the kernel without success. The
machine has 32M memory (Vectra XU 5/90).
Tried various combinations of "apm=off" and "nomce" with "mem=" and "noapic"
without luck. Will try to get serial console working to pin down how far the
kernel gets before rebooting.
Created attachment 94773 [details]
Boot log from serial console
Boot log captured from serial console. Machine reboots after printing the last
line - no delay.
I have recently discovered that adding "pci=conf1" or "pci=conf2" to the kernel
command line will allow the machine to boot normally. Maybe some driver is not
honoring the PCI detection method? This is strange as the boot data shows the
kernel is using type 1 configuration.
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem
The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases,
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/