Red Hat Bugzilla – Bug 195777
Using hwclock means acpi rtc wake up from suspend never happens
Last modified: 2015-01-04 17:27:26 EST
Description of problem:
We have computers that we are suspending to RAM and would like to wake up at a
certain time. However if hwclock is run at boot then computers that are
suspended will never wake up when the designated time arrives (and passes).
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot computer.
2. Log in as root.
3. Run modprobe -r acpi_cpufreq (see Bug #195367)
4. If the date is 2006-06-17 17:40:50 then run
echo -n "2006-06-17 17:41:50" > /proc/acpi/alarm
4. Run pm-suspend .
Machine stays asleep until keyboard is pressed or mouse is moved.
Machine to wake up on or just after 2006-06-17 17:41:50.
chmod -x /sbin/hwclock
is run and the computer is rebooted then it will correctly wake up at the
A new kernel update has been released (Version: 2.6.18-1.2200.fc5)
based upon a new upstream kernel release.
Please retest against this new kernel, as a large number of patches
go into each upstream release, possibly including changes that
may address this problem.
This bug has been placed in NEEDINFO state.
Due to the large volume of inactive bugs in bugzilla, if this bug is
still in this state in two weeks time, it will be closed.
Should this bug still be relevant after this period, the reporter
can reopen the bug at any time. Any other users on the Cc: list
of this bug can request that the bug be reopened by adding a
comment to the bug.
In the last few updates, some users upgrading from FC4->FC5
have reported that installing a kernel update has left their
systems unbootable. If you have been affected by this problem
please check you only have one version of device-mapper & lvm2
installed. See bug 207474 for further details.
If this bug is a problem preventing you from installing the
release this version is filed against, please see bug 169613.
If this bug has been fixed, but you are now experiencing a different
problem, please file a separate bug for the new problem.
This bug has been mass-closed along with all other bugs that
have been in NEEDINFO state for several months.
Due to the large volume of inactive bugs in bugzilla, this
is the only method we have of cleaning out stale bug reports
where the reporter has disappeared.
If you can reproduce this bug after installing all the
current updates, please reopen this bug.
If you are not the reporter, you can add a comment requesting
it be reopened, and someone will get to it asap.