I’ve opened a ticket for this. The problem is that at some point the local
location for $DISPLAY has changed, but xauth wasn’t updated to reflect that
change. It used to be that it would start with /tmp/launch, but now it starts
with /private/tmp/com.apple.launchd, so the special code in xauth that looks
for /tmp/launch to treat it as a local socket no longer works. Instead, it
tries to resolve the path as a DNS name, and it is in the getaddrinfo() call
where the delay is happening.
-David Borman
> On Nov 17, 2014, at 3:04 PM, Jeremy Huddleston Sequoia <[email protected]>
> wrote:
>
> We'll need a spindump to get a better idea of what is going on.
>
> In one Terminal tab, do the following
>
> sudo ls # just doing this to enter your password ahead of time
> sudo spindump xauth # don't hit enter yet.
>
> In the other tab, execute the hanging xauth call, then quickly switch to the
> other tab and hit enter to kick off the spindump.
>
> Please send me the spindump or attach it to a bug report, and I'll take a
> look at why it's hanging.
>
> --Jeremy
>
>
>> On Nov 17, 2014, at 12:48, David Borman <[email protected]> wrote:
>>
>> Since upgrading to Yosemite, I’ve been having delays in getting to a prompt
>> when starting up an xterm that does an ssh to a remote Linux box. I’m using
>> "ssh -Y remote_host” from the xquartz applications menu, i.e.:
>>
>> xterm -geometry 80x60+600+0 -title “remote" -bg "#ebffeb" -e ssh -Y
>> remote.example.com
>>
>> When I turn on the -vv flag to ssh, it pauses right after the xauth call:
>>
>>> ...
>>> debug1: channel 0: new [client-session]
>>> debug2: channel 0: send open
>>> debug1: Requesting [email protected]
>>> debug1: Entering interactive session.
>>> debug2: callback start
>>> debug2: Checking for xauth using /opt/X11/bin/xauth -f
>>> /var/folders/dv/rg72h7ch8xj_kk0059bnymr00000gn/T//xauth_test exit >
>>> /dev/null 2> /dev/null
>>>
>>> debug2: x11_get_proto: /opt/X11/bin/xauth list
>>> /private/tmp/com.apple.launchd.OgudsWHJ2p/org.macosforge.xquartz:0
>>> 2>/dev/null
>>
>> If I just cut-n-paste the xauth call into a local window, I get the same
>> delay, here are a couple of examples:
>>
>>> sh-3.2$ date;/opt/X11/bin/xauth list
>>> /private/tmp/com.apple.launchd.OgudsWHJ2p/org.macosforge.xquartz:0;date
>>> Mon Nov 17 14:26:27 CST 2014
>>> Mon Nov 17 14:26:32 CST 2014
>>> sh-3.2$ date;/opt/X11/bin/xauth list
>>> /private/tmp/com.apple.launchd.OgudsWHJ2p/org.macosforge.xquartz:0;date
>>> Mon Nov 17 14:34:57 CST 2014
>>> Mon Nov 17 14:35:05 CST 2014
>>> sh-3.2$
>>
>> If I run “ssh -Y remote.example.com” from a local xterm, there is no delay,
>> and the xauth call is different:
>>
>> debug2: x11_get_proto: /opt/X11/bin/xauth list :0 2>/dev/null
>>
>> So this implies the DISPLAY variable is set differently between the two.
>>
>> Has anyone else seen this?
>>
>> -David Borman
>>
>>
>>
>>
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