Re: 2.6.10-4 kernel doesn't unload unused drivers loaded by initrd
From: Greg Folkert (greg_at_gregfolkert.net)
Date: 02/21/05
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To: DebianUser List <debian-user@lists.debian.org> Date: Sun, 20 Feb 2005 18:15:06 -0500
On Sun, 2005-02-20 at 17:56 -0500, Roberto C. Sanchez wrote:
> Andrei Badea wrote:
> > Roberto C. Sanchez wrote:
> >
> >
> >>Andrei Badea wrote:
> >>
> >>
> >>>During the upgrade of my sid a new 2.6.10 kernel was installed (full
> >>>package name is 2.6.10-1-686, version 2.6.10-4). After reboot, I noticed
> >>>that unused disk drive controller drivers loaded by initrd aren't
> >>>unloaded. Before init runs, error messages like this one appear for each
> >>>driver:
> >>>
> >>> ERROR: Removing 'amd74xx': Device or resource busy
> >>>
> >>>Moreover, in the lsmod result "[permanent]" appears next to each drive's
> >>>module:
> >>>
> >>> amd74xx 14172 0 [permanent]
> >>>
> >>>Has anyone seen this? Maybe a bug in the kernel package?
> >>
> >>This is not a bug, it is a feature :-)
> >>
> >>Seriously, amd74xx is a chipset driver. Without it, your machine
> >>will experience difficulty in speaking to your IDE controller (i.e.,
> >>hard disks and optical drives) and certainly would not be able to
> >>make use of DMA. You really want that module to stay loaded.
> >
> >
> > Thank you for your answer. Maybe I should have emphasized that I'm not
> > getting that error message for amd74xx only, but also for another about 20
> > modules. Besides, the machine is a Centrino notebook, so the only needed
> > driver is (I guess) piix. I definitely don't need modules such as amd74xx.
> >
>
> Again, amd74xx is what allows your kernel to speak to your hard drive.
> Without it, it defaults do extremely safe (and *extremely* slow)
> non-DMA, non-unmasked IRQ, 16-bit I/O. Why do you want that? Copying
> even a moderately sized file would take you on the order of minutes.
>
> As for the other drivers, if you don't tell us which they are, it is
> difficult to provide an explanation.
These.
ide_generic 1216 0 [permanent]
via82cxxx 13468 0 [permanent]
trm290 4228 0 [permanent]
triflex 3712 0 [permanent]
slc90e66 5824 0 [permanent]
sis5513 16136 0 [permanent]
siimage 12480 0 [permanent]
serverworks 9096 0 [permanent]
sc1200 7296 0 [permanent]
rz1000 2496 0 [permanent]
piix 10052 0 [permanent]
pdc202xx_old 11264 0 [permanent]
opti621 4548 0 [permanent]
ns87415 4232 0 [permanent]
hpt366 20032 0 [permanent]
hpt34x 5184 0 [permanent]
generic 3968 0 [permanent]
cy82c693 4676 0 [permanent]
cs5530 5376 0 [permanent]
cs5520 4672 0 [permanent]
cmd64x 11996 0 [permanent]
atiixp 6032 0 [permanent]
amd74xx 13660 0 [permanent]
alim15x3 12108 0 [permanent]
aec62xx 7296 0 [permanent]
pdc202xx_new 9088 0 [permanent]
I only need one: hpt366
-- greg, greg@gregfolkert.net The technology that is Stronger, better, faster: Linux
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