Red Hat Bugzilla – Bug 135134
rhgb + agp i915 hangs kernel-220.127.116.11-603smp boot on dual P3 system
Last modified: 2015-01-04 17:10:27 EST
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Description of problem:
kernel-18.104.22.168-603smp fails to boot at all with with the 'rhgb'
boot option on a dual P3 processor system. It boots fine without the
rhgb option, and the non-smp kernel boots fine on a different
I don't know if this is a kernel problem or an rhgb problem;
but as the kernel boots OK without the 'rhgb' boot option,
I'm raising it as a rhgb bug.
I'm not sure how to gather more debug information on this;
with the rhgb option, the smp kernel doesn't boot at all -
I've tracked it down to where it sets the clock in rc.sysinit,
around line 234, after the 'action ... sysctl', in
If I enable the sysrq=1 sysctl option in sysctl.conf, change to
VT1 when the boot hangs, and press sysrq, I get this message on
/etc/init.d/functions: line 428: /etc/rhgb/temp/rhgb-console:
Interrupted system call
and the system hangs, never booting nor responding to any boot
key sequence (like ctrl+alt+del) - so I have to power-off and
remove the 'rhgb' option or supply the '-s' option in order to boot.
This happens both with and without selinux enabled, with all RPMS
updated to rawhide-20041008 .
The system has 2 x 2.8GHz P3s (model 3) with an Intel 915G video card.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot kernel-2.6.8-1.603smp on a dual processor system with rhgb
Actual Results: System never boots
Expected Results: System should boot OK.
did -598 work ?
Does booting with agp=off help ? (i915 agp driver changed recently)
with rhgb disabled, does it boot into runlevel 5 and startx ok ?
Yes, it booted -598 fine.
As the previous comment states, -603 boots fine without the 'rhgb'
Aha! I just found out: with the agp=off option, it boots fine in
graphical mode too.
It looks like this is a kernel (i915 agp driver) problem . I'll move
it to the kernel.
I am still having to boot kernel 541 because both 598 and 603 have
both failed to boot the non smp kernel. It gets to the point where it
goes to the graphical boot (which I actually dispise, how do I get it
to stop and show me the OKs) then simply goes black. Ctl-Alt-Del does
not reboot, no activity (hard drive, etc).
Hardware: Intel 865 PE50, using onboard video
Today I did an rpm -e on rhgb and all is right with the world again.
Not only do I have 603 booting, I don't have that awful Microsoftish
boot up. My reassuring OK's are now gracing my screen.... ahhhhhhhhh
So, it appears that there must be some type of incompatability between
the graphical boot system and Intel video cards.
This bug could be related to bug #132267 - more problems with
Intel video cards and X .
It probably is the same bug, caused by rhgb starting 2 X servers
simultaneously which wont work on Intel video hardware.
I've reproduced the problem on an i830 chipset, but upgrading to the
-610 kernel solves the problem for me. Could you try to update to
-610 (it's probably best to avoid -624) and see if it also solves your
This is now fixed in kernel-2.6.9-1.639+ .