Bug 284191 - The kernel- package breaks the RTC.
The kernel- package breaks the RTC.
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
i686 Linux
high Severity medium
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2007-09-09 20:29 EDT by Jeff Silverman
Modified: 2007-11-30 17:12 EST (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2007-10-08 17:41:53 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Jeff Silverman 2007-09-09 20:29:46 EDT
Description of problem:
The kernel- package breaks the RTC. 
/proc/sys/dev/rtc/max-user-freq is not found.
sysctl -w dev.rtc.max-user-freq=1024 gives a "no such key" error message.

Version-Release number of selected component (if applicable):

How reproducible:
At will.

Steps to Reproduce:
1. Boot the kernel- kernel
2. use either echo 1024 > /proc/sys/dev/rtc/max-user-freq or sysctl -w
Actual results:
/proc/sys/dev/rtc is not found. sysctl reports no such key.

Expected results:
It should quietly succeed.

Additional info:
The contents of the directories
/lib/modules/2.6.20-1.2948.fc6/kernel/drivers/rtc and
/lib/modules/ are different.  In particular,
/lib/modules/2.6.20-1.2948.fc6/kernel/drivers/rtc/rtc-dev.ko are missing from
the /lib/modules/

mplayer reports that 1024 should be poked into /proc/sys/dev/rtc but that pseudo
file is missing.
Comment 1 Owen Berry 2007-09-17 16:34:40 EDT
This also creates issues for qemu:

Program output:
Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal
error, but for better emulation accuracy either use a 2.6 host Linux kernel or
type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.

Except that you can't set the RTC frequency due to this problem.

Kernel: for i686
Comment 2 Chuck Ebbert 2007-09-28 13:27:59 EDT
Reverted to the old RTC driver in kernel It will be in the
updates-testing repository soon.

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