ALT Linux Bugzilla – #14343
very long pause before the power is turned off with clocksource=tsc
Last modified: 2010-08-25 08:48:10
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I discovered this while experimenting because of the bug with system clock #14258.
$ rpm -q kernel-image-wks-smp-2.6.18-alt1 -i
Name : kernel-image-wks-smp Relocations: (not relocateable)
Version : 2.6.18 Vendor: ALT Linux Team
Release : alt1 Build Date: Срд 13 Дек 2006 02:28:15
Install date: Срд 21 Фев 2007 02:43:51 Build Host: bee5.hasher.altlinux.org
Group : System/Kernel and hardware Source RPM:
Size : 44948311 License: GPL
Packager : Konstantin A. Lepikhov <email@example.com>
Steps to Reproduce:
1. boot 2.6.24-wks-smp-alt1 with clocksource=tsc
At the end, it writes "The system is halted" and nothing happens for 2 min 50
sec. Only then the power is tuned off.
Normally, the pause is about 3 sec (e.g., on 2.6.24-wks-smp-alt1 with default
A similar effect of clocksource=tsc on the init sequence (a long pause):
I also experienced this delay on 2.6.24-std-def-alt2 with clocksource=tsc. The
delay on "The system is halted" was about 1 min, but there was also a delay
after the message "Asking all remaining processes to terminate", which lasted
about 3 min.
(With this option, 2.6.24-std-def-alt2 also has the bad behavior of the system
clock: https://bugzilla.altlinux.org/show_bug.cgi?id=14258#c18 ).
Perhaps, this is not a bug and an expected behavior under this kernel parameter.
But I wonder why other programs work without delays then.
Ivan, is it still there?