Date: Tue, 9 Nov 2010 05:50:09 GMT From: Joe Marcus Clarke <marcus@freebsd.org> To: gnome@FreeBSD.org Subject: Re: ports/151725: sysutils/hal: hald fails to start with dbus-1.4 Message-ID: <201011090550.oA95o9xE054983@freefall.freebsd.org>
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The following reply was made to PR ports/151725; it has been noted by GNATS.
From: Joe Marcus Clarke <marcus@freebsd.org>
To: Andriy Gapon <avg@freebsd.org>
Cc: Kevin Oberman <oberman@es.net>, gnome@freebsd.org,
bug-followup@freebsd.org
Subject: Re: ports/151725: sysutils/hal: hald fails to start with dbus-1.4
Date: Tue, 09 Nov 2010 00:47:33 -0500
On 11/9/10 12:36 AM, Andriy Gapon wrote:
> on 09/11/2010 02:14 Kevin Oberman said the following:
>> I'll try this as soon as I can. I'm not too sure that it will happen as
>> I think that this is somehow timing related. I suspect that the entry is
>> disappearing too quickly with 1.4 in some cases but is not a problem
>> with 1.2. Perhaps some optimization?
>>
>> I suggest this because on at least rare occasion, 1.4 did run
>> successfully, not because I have any clue what was happening under the
>> covers.
>
> I guess that I already explained this part.
> The problem happened because we tried to write something (even if it's just zero
> sized something) into stdin of a child process that already exited.
> Sometimes the child process was quicker, sometimes the parent process was
> quicker, hence the non-determinism.
>
Ah, I missed that. I wonder if it would be safer then to ignore SIGPIPE
around the write block.
Joe
--
Joe Marcus Clarke
FreeBSD GNOME Team :: gnome@FreeBSD.org
FreeNode / #freebsd-gnome
http://www.FreeBSD.org/gnome
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