Bug 212344 - Many unneeded kernel modules are loaded
Many unneeded kernel modules are loaded
Status: CLOSED NOTABUG
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
5.0
All Linux
medium Severity medium
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Assigned To: Jon Masters
Brian Brock
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Depends On: 211780
Blocks:
  Show dependency treegraph
 
Reported: 2006-10-26 09:49 EDT by Linda Wang
Modified: 2007-11-30 17:07 EST (History)
2 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2006-11-10 06:16:32 EST
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Description Linda Wang 2006-10-26 09:49:37 EDT
+++ This bug was initially created as a clone of Bug #211780 +++

Description of problem:
Using kernel-2.6.17-1.2293_FC6, not much overhead was loaded: video button 
battery ac lp parport_pc parport.

But things changed using kernel-2.6.18-1.2798.fc6: button battery asus_acpi ac 
scb2_flash mtdcore cfi_probe chipreg map_funcs pcspkr sbs i2c_ec parport_pc lp 
parport i2c_piix4 i2c_core gen_probe serio_raw video

Why do you believe I need this whole mess automatically loaded? I'm accepting 
video as there is a graphics controller and maybe the ACPI stuff even it doesn't 
make sense at a server, but the rest seems more than nonsens to me. And the box 
has neither parport nor for Linux usable i2c/SMBus or any Asus components. There 
even isn't a sound card or a beeper which could be used for pcspkr. Ha and ever 
seen a 1U rack server supporting any type of CFI-compliant flash chips?

Version-Release number of selected component (if applicable):
kernel-2.6.18-1.2798.fc6

How reproducible:
Buy a HP ProLiant DL360 G3, G4, G4p or G5 and install Fedora Core 6. You'll get 
the same mess installing Red Hat Enterprise Linux 5 when ready and not fixed...

Actual results:
Many unneeded kernel modules are loaded.

Expected results:
Only kernel modules loaded which are really needed and not just every module 
standing or lying around and looking a bit pretty... ;-)

Additional info:
The following also looks strange to me (ehci, ohci and uhci at the same time?):

ehci_hcd               35533  0
ohci_hcd               25181  0
uhci_hcd               27725  0
Comment 2 Jon Masters 2006-11-10 06:16:32 EST
It looks like this is a case of a newer kernel providing updated drivers
(modalias, new hardware support) that udev then loads automatically on boot. I
don't really see what the bug is here - it's possible to tell the tools not to
load these drivers, if you really want. Unless I'm missing something, this is
not actually a "bug", more a feature that's resulting in some extra modules loaded.

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