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Bug 129923 - [AGP] /sbin/loader panics when installing from non-onboard video
[AGP] /sbin/loader panics when installing from non-onboard video
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
i686 Linux
medium Severity high
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Assigned To: Dave Jones
Brian Brock
Depends On:
  Show dependency treegraph
Reported: 2004-08-14 06:16 EDT by Dan Hollis
Modified: 2015-01-04 17:08 EST (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-09-29 03:30:38 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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Description Dan Hollis 2004-08-14 06:16:56 EDT
Description of problem:
Shuttle SB52G2 (http://eu.shuttle.com/sb52g2.htm)
512mb pc2100 ddr
geforce fx5200 in pci slot 2

Version-Release number of selected component (if applicable):
fedora core 3 test 1

How reproducible:

Steps to Reproduce:
1.install PCI video card (eg geforce fx5200)
2.setup bios to boot off PCI card instead of onboard intel agp video
3.watch installer blow up

Actual results:
/sbin/loader panics and the install halts

Expected results:
it should not panic :P

Additional info:
it appears /sbin/loader is trying to setup onboard video anyway, even
though it's been disabled in bios? if i boot off onboard video it's
ok. but the onboard video sucks, which is why i installed a geforce
fx5200 into one of the pci slots.
Comment 1 Arjan van de Ven 2004-08-14 06:24:11 EDT
any info besides "panics" ???
we have very little to go on here...
Comment 2 Dan Hollis 2004-08-14 10:31:02 EDT
looks basically exactly the same as #124007
Comment 3 Dave Jones 2004-12-08 01:50:21 EST
did this get fixed for fc3 final ?
Comment 4 Dan Hollis 2004-12-08 02:08:13 EST
nope. looks like a bug in intel-agp.ko

it tries to setup agp even if it's disabled in bios, and panics the kernel.
intel-agp.ko should just bail out instead.

you can duplicate it on i82845G chipset (probably others too), just disable agp
in bios and try loading intel-agp.ko for nice fireworks and a panicked kernel.
Comment 5 Dave Jones 2004-12-08 02:17:04 EST
booting with agp=off should get you past the agp initialisation.
Can you paste the exact agp messages that show up in the 'crashes' case ?
Comment 6 Dan Hollis 2004-12-08 15:41:15 EST
agp=off does nothing, still crashes.

the oops backtrace when it crashes (copied by hand, since the kernel is hardlocked)

agp_backend_initialize [agpgart]
init_module [intel_agp]
Comment 7 Dan Hollis 2005-05-04 06:01:17 EDT
repeated attempts over several months to contact the kernel developers
responsible for this module have been fruitless.

maybe someone at redhat will have better luck.
Comment 8 Dave Jones 2005-07-15 16:42:14 EDT
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which
may contain a fix for your problem.   Please update to this new kernel, and
report whether or not it fixes your problem.

If you have updated to Fedora Core 4 since this bug was opened, and the problem
still occurs with the latest updates for that release, please change the version
field of this bug to 'fc4'.

Thank you.

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