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Tasklist

FS#17789 - [kernel26] RTC wakeup broken since last update

Attached to Project: Arch Linux
Opened by Michael Zanetti (mzanetti) - Monday, 11 January 2010, 07:37 GMT
Last edited by Andrea Scarpino (BaSh) - Wednesday, 20 January 2010, 21:57 GMT
Task Type Bug Report
Category Upstream Bugs
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas Bächler (brain0)
Architecture x86_64
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:

RTC wakeup does not work any more since the last upgrade

Steps to reproduce:
echo `date '+%s' -d '+ 5 minutes'` > /sys/class/rtc/rtc0/wakealarm
shutdown -h now

The system won't come up as expected in 5 minutes.

Unfortunately I can't tell what exactly broke the wakeup. I've tried to downgrade the kernel to 2.6.32.2 but it didn't help. Any hints what else I could try to debug this problem?
This task depends upon

Closed by  Andrea Scarpino (BaSh)
Wednesday, 20 January 2010, 21:57 GMT
Reason for closing:  Fixed
Additional comments about closing:  2.6.32.4-1
Comment by Michael Zanetti (mzanetti) - Tuesday, 12 January 2010, 07:47 GMT
I've downgraded to the following packages and wakeup works again:

binutils-2.20-2-x86_64.pkg.tar.gz
kernel-headers-2.6.31.5-1-x86_64.pkg.tar.gz
kernel26-firmware-2.6.31-1-x86_64.pkg.tar.gz
nvidia-173xx-173.14.22-1-x86_64.pkg.tar.gz
glibc-2.11-1-x86_64.pkg.tar.gz
kernel26-2.6.31.6-1-x86_64.pkg.tar.gz
lirc-0.8.6-1-x86_64.pkg.tar.gz
nvidia-173xx-utils-173.14.22-1-x86_64.pkg.tar.gz

Well, I've downgraded packages like lirc and nvidia only because of unsatisfied dependencies. I don't think the problem is in there (I just list them for completeness). Rather I expect one of the following packages to be the culprit:

binutils
kernel26
kernel26-firmware
glibc

Indeed, I really think it is a kernel-issue. Everything from 2.6.32 and above seems to have broken wakeup by rtc alarm.
Comment by Frank Phillips (fphillips) - Monday, 18 January 2010, 06:46 GMT
This fix should be in 2.6.32.4 (patch 20/52) "rtc_cmos: convert shutdown to new pnp_driver->shutdown".

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