Red Hat Bugzilla – Bug 379651
toshiba laptop: Timer interrupt error on reboot
Last modified: 2008-08-07 11:46:26 EDT
Description of problem:
During a reboot, the following BIOS message is displayed: "Timer interrupt
The system then reboots and appears to behave normally, but it hangs during
startup, after the message "Uncompressing Linux... Ok, booting the kernel"
Version-Release number of selected component (if applicable):
Linux toshiba.badmuts.org 126.96.36.199-49.fc8 #1 SMP Thu Nov 8 21:41:26 EST 2007
i686 i686 i386 GNU/Linux
System is a Toshiba Satellite Pro 2100 laptop (the same hardware has been sold
earlier as the Toshiba Satellite 2410 series). Intel Celeron CPU 1500 MHz,
Intel chipset. System is a 3-4 years old IIRC.
Steps to Reproduce:
1. Reboot and observe
This started happening after I upgraded from F7 to F8.
Please let me know if I can assist in any way.
I'm seeing the same thing on two Toshiba 5105-s607. They used to run FC6 with
no error on reboot. With F8, this error appears requiring a power cycle for a
I just ran some reboot testing, and found that I can prevent the error by
booting with kernel parameter:
Of course, wakeups per second went from about 200 to 1000. I tried hpet with
hires=off, and that had no effect on the timer error. Nor did acpi_pm.
I'm reviewing this bug as part of the kernel bug triage project, an attempt to
isolate current bugs in the Fedora kernel.
I am CC'ing myself to this bug and will try and assist you in resolving it if I can.
There hasn't been much activity on this bug for a while. This should now be
resolved - can you verify with the latest kernel?
If the problem no longer exists then please close this bug or I'll do so in a
few days if there is no additional information lodged.
Yes, for me it's solved with the latest kernel. I kind of noticed it by
accident though, because nothing in the kernel changelog indicated there had
been fixes in this area.
Confirming; booting 188.8.131.52-115.fc8 without clocksource=pit no longer causes a
I'd like to second that it would be nice if the changelog referenced bugs that
were thought to be fixed, as I also missed that this was the case in the current
There was no package announcement for this kernel either - I had to check koji
for the changelog.
I'm getting the same behavior on reboot ("timer interrupt error" message, then a hang after the message "Uncompressing Linux... Ok, booting the kernel"). After a cold boot, though, the system behaves normally.
The kernel is 184.108.40.206-60 fc8 running on a Toshiba A45-S250 with a brand new hard drive. fc8 is the only OS on this machine.