Bug 323861 - Wrong device driver recognizing
Wrong device driver recognizing
Product: Fedora
Classification: Fedora
Component: kudzu (Show other bugs)
All Linux
low Severity low
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Assigned To: Bill Nottingham
Fedora Extras Quality Assurance
Depends On:
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Reported: 2007-10-08 17:16 EDT by Alexey Kuznetsov
Modified: 2014-03-16 23:08 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2007-10-08 17:38:12 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Alexey Kuznetsov 2007-10-08 17:16:43 EDT
Description of problem:
Kudzu make wrong information about device driver. The filed of
kudzu_device.driver from compatible driver, but not from real loaded driver.
Probably kudzu dont collect blacklisted modules information. 

How reproducible:
Easy almost every time depend on order modules in modules.dep file.

Steps to Reproduce:
1. install TWDrv (proprietary touch screen driver 3m.com)
2. put 'blacklist usbtouchscreen' in /etc/modules.d/blacklist
3. depmod -a
4. run print kudzu.probe(kudzu.CLASS_UNSPEC, kudzu.BUS_UNSPEC, kudzu.PROBE_SAFE)
Actual results:
kudzu_device.driver = usbtouchscnreen

Expected results:
kudzu_device.driver = TWDrv

Additional info:
You can run easy test. Remove usbtouchscreen from /lib/modules-x.x.x and run
depmod -a. After it you got right kudzu_device.driver value.
Comment 1 Bill Nottingham 2007-10-08 17:38:12 EDT
kudzu is only used in anaconda, where there is no blacklist.
Comment 2 Alexey Kuznetsov 2007-10-08 17:59:22 EDT
True, this is main target. But kudzu used for check local hardware changes evey
reboot kudzu service S05kudzu. Additional, probaby right for anaconda, initial
modproble.d/blacklist is not empty, you can check your 
/etc/modules.d/blacklist, this file full of blacklisted modules.
Comment 3 Bill Nottingham 2007-10-08 18:18:14 EDT
Yes, but none of those are relevant for the installer.

As for the 'check hardware' that only runs in F7 for sound, network, and video
cards, and will run for even less in the future.

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