On Sat, Jun 14, 2014 at 07:58:17AM +0800, Huang Wen Hui wrote:
> I notice onifconsole is enable on STABLE recently, In mbr 2013 there is an
> uart port, it may not useful:
> uart0: <8250 or 16450 or compatible> at port 0x3f8-0x3ff irq 4 flags 0x10
> on isa0
> uart0: console (338,n,8,1)
> If onifconsole is enable, "shutdown -p now" or press power button on
> keyboard is not properly work.
> system still can ssh.
> Before shutdown command, ps -ax show:
> [snip]
> After showdown command, ps -ax show:
> PID TT STAT TIME COMMAND
> 0 - DLs 0:00.10 [kernel]
> 1 - SLs 0:00.02 /sbin/init -s
> [snip]
> 1693 v0- Z+ 0:00.01 <defunct>
> 1694 v1- Z+ 0:00.00 <defunct>
> 1695 v2- Z+ 0:00.01 <defunct>
> 1696 v3- Z+ 0:00.01 <defunct>
> 1697 v4- Z+ 0:00.01 <defunct>
> 1698 v5- Z+ 0:00.01 <defunct>
> 1699 v6- Z+ 0:00.01 <defunct>
> 1700 v7- Z+ 0:00.00 <defunct>
> 1701 u0- Z+ 0:00.01 <defunct>
> 1747 0 Ss 0:00.01 -csh (csh)
> 1780 0 R+ 0:00.00 ps -ax
> All getty processes become to defunct.
Please provide the output of
procstat -k 1
during the hang (after the shutdown command).
If you are running stable/10, reverting r261997 (an MFC of r259441)
might help. In some circumstances, r261997 makes a process unkillable
while waiting for output to drain while closing a tty.
--
Jilles Tjoelker
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