Bug 184593 - System clock runs way too fast with kernel-2.6.15-1.2032_FC5
Summary: System clock runs way too fast with kernel-2.6.15-1.2032_FC5
Status: CLOSED DUPLICATE of bug 55223
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 5
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Dave Jones
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2006-03-10 02:41 UTC by John Thacker
Modified: 2015-01-04 22:25 UTC (History)
5 users (show)

Clone Of:
Last Closed: 2006-03-30 05:13:06 UTC

Attachments (Terms of Use)
dmesg with kernel-2.6.15-1.2038_FC5 (clock too fast) (16.29 KB, text/plain)
2006-03-11 00:42 UTC, John Thacker
no flags Details
dmidecode with kernel-2.6.15-1.2038_FC5 (12.18 KB, text/plain)
2006-03-11 00:43 UTC, John Thacker
no flags Details
dmesg with kernel-2.6.15-1.2009.4.2_FC5 (works) (15.63 KB, text/plain)
2006-03-11 00:45 UTC, John Thacker
no flags Details

Description John Thacker 2006-03-10 02:41:00 UTC
Description of problem:
After updating to kernel-2.6.15-1.2032_FC5, I noticed that my system clock
started running WAY too fast.  I gained an entire hour in about a day.  (The
clock runs so fast it can't stay in sync with NTP servers.)  My hardware clock
is perfectly fine.  Rebooting to kernel-2.6.15-1.2009.4.2_FC5 makes it work

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

How reproducible:
Every time

Steps to Reproduce:
1. Boot in that kernel
Actual results:
System clock runs way too fast

Expected results:
System clock runs normally

Additional info:
It works perfectly fine on the previous kernel, kernel-2.6.15-1.2009.4.2_FC5,
both before and after rebooting to it.

Comment 1 John Thacker 2006-03-10 17:27:36 UTC
Problem persists on todays kernel-2.6.15-1.2038_FC5.  Rebooting to
kernel-2.6.15-1.2009.4.2_FC5 again works fine.  Any particular information that
would be helpful?

Comment 2 Dave Jones 2006-03-10 21:37:27 UTC
dmesg and dmidecode output please ?

Comment 3 John Thacker 2006-03-11 00:42:48 UTC
Created attachment 125969 [details]
dmesg with kernel-2.6.15-1.2038_FC5 (clock too fast)

Comment 4 John Thacker 2006-03-11 00:43:15 UTC
Created attachment 125970 [details]
dmidecode with kernel-2.6.15-1.2038_FC5

Comment 5 John Thacker 2006-03-11 00:45:11 UTC
Created attachment 125971 [details]
dmesg with kernel-2.6.15-1.2009.4.2_FC5 (works)

I didn't enter the nolapic keyword but it seems like it was disabled by

Comment 6 John Thacker 2006-03-11 01:18:20 UTC
Booting with 'noapic' makes it work fine.  I can add another dmesg if it would help.

Comment 7 Joachim Frieben 2006-03-13 08:40:37 UTC
Looks like a duplicate of Bug #55223 albeit striking uni-processor
kernels, too, now. I had reopened Bug #55223 on 2006-03-05 after
observing the same regression which had occurred some time in
January 2006.

Comment 8 John Thacker 2006-03-30 05:13:06 UTC
Seems to be working fine with kernel-2.6.16-1.2080_FC5 even without noapic.  Thanks!

Comment 9 John Thacker 2006-04-20 23:48:54 UTC

*** This bug has been marked as a duplicate of 55223 ***

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