[#4294] watchdogd does not always close the watchdog safely when rebooting
Submitted By: Jie Zhang
Open Date
2008-07-30 03:27:23 Close Date
2008-08-06 02:19:01
Priority:
Low Assignee:
Mike Frysinger
Status:
Closed Fixed In Release:
N/A
Found In Release:
N/A Release:
Category:
N/A Board:
N/A
Processor:
N/A Silicon Revision:
Is this bug repeatable?:
Yes Resolution:
Fixed
Uboot version or rev.:
Toolchain version or rev.:
trunk HEAD
App binary format:
N/A
Summary: watchdogd does not always close the watchdog safely when rebooting
Details:
Trunk linux kernel built with trunk toolchain. I type reboot, the board will reboot, but there is a strange line about bfin-wdt:
root:/> reboot
bfin-wdt: Unexpected close, not stopping watchdog!
Restarting system.�
U-Boot 1.1.6-svn1302 (ADI-2008R2-pre) (Jul 30 2008 - 09:02:24)
[snip]
Follow-ups
--- Mike Frysinger 2008-07-30 04:03:54
it's been this way for a long time and is safe to just ignore
--- Mike Frysinger 2008-07-30 09:51:23
watchdogd was just catching SIGTERM, but the default reboot (sysutils/reboot)
sends SIGTERM and SIGHUP without any delay in between, so sometimes the SIGHUP
gets delivered to watchdogd before SIGTERM gets processed
watchdogd catches SIGHUP now as well, so it should close things out
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