Red Hat Bugzilla – Bug 151382
kernel-smp hangs, screen goes blank while loading audio modules
Last modified: 2015-01-04 17:17:48 EST
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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050302 Firefox/1.0.1 Fedora/1.0.1-1.3.2
Description of problem:
Boot process stops and screen goes blank when booting kernel-smp while running in /etc/rc.sysinit at "Initializing hardware" just after "audio" comes up.
There is no audio hardware in this machine. It's a dual processor P III running on a Via 686 chipset (Abit VP6).
This machine ran fine under RH9 - FC3. This is a fresh install of FC4t1.
System at this point hard locks, sysrq doesn't respond.
UP kernel works.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot the kernel-smp.
2. Watch system lock up.
Actual Results: Hard lock as described above
Expected Results: System should have booted.
Created attachment 112092 [details]
lspci -v from this machine
Created attachment 112093 [details]
lshal from this machine
*** Bug 151418 has been marked as a duplicate of this bug. ***
Created attachment 112109 [details]
lsmod before modprobing matroxfb-base
Created attachment 112110 [details]
lsmod after modprobing matroxfb-base
The lockups and bad behaving video are caused by a segfaulting matroxfb-base
module. This doesn't segfault in the UP kernel, just the SMP kernel. I
disabled the "other" category in /etc/rc.sysinit around line 210 or so and
manually modprobed the modules it specified. The others (parport_pc and
uhci-hcd) were fine.
Please see the last two attachments for details from lsmod.
Created attachment 112113 [details]
stack trace of the failed "modprobe matroxfb_base"
Still exists in 1191 kernel.
Still exists in 1202 kernel.
Still no matrox love in 1208 SMP kernel.
The 1219 kernel is worse. Now the UP kernel also hangs in the same spot.
Works fine now in 1225 kernel, UP and SMP both. Get a rather disconcerting font
change and a momentary blinking out of the video, but that's to be expected.
I have a similar problem on my machine. It boots up, then starts loading the
GUI, and gets as far as 'setting hostname'. Then the display goes black. There
is still a signal to the screen, because the LED stays green, but there's no
display, and no mouse curser.
I have to reboot several times to get any further than this. I know it's not
booting any further, because I can't SSH into it. It does however show up in my
I'm running Fedora Core 2, 2.6.11-1.14_FC3, on a Pentium 3, 500MHz, AOpen AX6BC
motherboard with the latest bios, 256MB ram, PA700 pro display adapter. If I
can get it to boot any further, I might be able to get more system info.
Mass update of -test bugs to update version to fc4.
(Please retest on final release, and report results if you have not already done