Bugzilla will be upgraded to version 5.0 on December 2, 2018. The outage period for the upgrade will start at 0:00 UTC and have a duration of 12 hours
First Last Prev Next    This bug is not in your last search results.
Bug 19922 - lost timer interrupts (*severe*)
lost timer interrupts (*severe*)
Status: CLOSED CURRENTRELEASE
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
7.0
i386 Linux
medium Severity high
: ---
: ---
Assigned To: Michael K. Johnson
Brock Organ
:
Depends On:
Blocks:
  Show dependency tree / graph
 
Reported: 2000-10-27 12:14 EDT by j. alan eldridge
Modified: 2007-04-18 12:29 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2002-12-14 21:59:48 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

  None (edit)
Description j. alan eldridge 2000-10-27 12:14:18 EDT 
massive loss of timer interrupts and hence system time is dramatically 
behind rtc clock (and dramatically behind our place in the space-time 
continuum as well).

losses of >20% wall time not unusual.

symptoms manifest when:

* ripping cds (setuid root, real-time scheduler)
* burning cds (setuid root, real-time scheduler)
* playing mp3s with xmms (*not root*)

hardware config (see wozzle.geeksrus.net on rhn):

asus pc3j133 (?i'm at work, not home?) 
via chipset
aha-2930cu
atapi cdrom as hdd
tdk atapi cd-rw as scd0
creative audio pci (es1371)
diamond supraexpress 56k usb modem
logitech usb mouse
voodoo 3000 agp video
smc pci 10/100 ethernet
Comment 1 Arjan van de Ven 2001-01-15 13:11:17 EST 
There is a known problem with via chipsets and losing time. It seems to
sometimes reset itself to
a frequency of 18Hz (the Windows default) while Linux programmed it to 100Hz.
It should be worked around as of the Linux 2.2.19-pre1 kernel.
Note You need to log in before you can comment on or make changes to this bug.
First Last Prev Next    This bug is not in your last search results.