GNU bug report logs - #42538
28.0.50; tramp-test35-remote-path test timing out on macOS

Previous Next

Full log

Message #20 received at 42538 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: 42538 <at> debbugs.gnu.org
Subject: Re: bug#42538: 28.0.50; tramp-test35-remote-path test timing out on
 macOS
Date: Mon, 27 Jul 2020 17:28:19 +0200

Philipp Stephani <p.stephani2 <at> gmail.com> writes:

Hi Philipp,

>> Indeed. So I've modified the patch; the test case commits suicide after
>> 30 seconds. You can call it simply by
>>
>> $ rm test/lisp/net/tramp-tests.log
>> $ make -C test lisp/net/tramp-tests.log SELECTOR=tramp-test35-remote-path
>
>
> OK, I've attached the log file now. (It's not that large.)

And it tells us The Truth (TM).

Under macOS, PIPE_BUF is very short:

--8<---------------cut here---------------start------------->8---
23:33:50.197963 tramp-send-command (6) # getconf PIPE_BUF / 2>/dev/null || echo 4096 2>/dev/null; echo tramp_exit_status $?
23:33:50.200794 tramp-wait-for-regexp (6) # 
512
tramp_exit_status 0
///ec22873252400ed5da2786d09e65ca05#$
--8<---------------cut here---------------end--------------->8---

Tramp tries to set a very long PATH variable (this is the essence of the
test), creating a temp file via a heredoc command. With other OSes, this
trick works. But it refuses to work for you:

--8<---------------cut here---------------start------------->8---
23:34:00.273274 tramp-send-command (6) # cat >/tmp/tramp.21cf9w <<'ee34a56d9cb9cbd177c29dcaca509be9'
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/sbin:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/XBjC1b:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/C2Xb3Q:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/oUW8Hk:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/nmtc9J:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/H6S488:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/BMJQL7:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/4mZhx7:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/1HY100:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/Nu1cnQ:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/r17vPP:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/AuhHIQ:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/0o1mE1:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/Z4O5Sx:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/46Q1L2:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/WjjoRH:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/CBgDaw:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/j1IF30:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/o3WfTs:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/EsFexA:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/SUmpMi:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/vEA9uL:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/A3Z06C:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/j3TEeY:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/1Zm9fA:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/eLdpLh:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/rF4Bxu:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/5xWpeg:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/nbZeG4:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/77cnPb:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/up7DIK:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/lLTfv4:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/0NUphe:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/g2GVE8:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/ha6g1W:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/uZMI15:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/n7F9Zr:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/iRvb2d:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/7NpjgT:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/GLF9LB:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/0vY43M:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/Jz1jEI:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/4SqFP3:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/wlgvgt:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/68tScv:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/LmWqYP:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/2UbEme:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/29SifB:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/8388Ha:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/sEve50:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/ofutHX:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/jOEMm0:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/0laQB5:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/UWDANC:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/gke4IJ:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/GBuhLz:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/gWiUYZ:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/DxLjh8:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/EeeqZI:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/rF99jV:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/e0OVZR:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/aDrXdX:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/m0a6et:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/po8aFp:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/RFMSih:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/W01RNs:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/hVC19w:/var/folders/ks/sxl3n3w51td0ry21j3tjs1wh0000gn/T/tramp-test16h5Wh/muGaOz; export PATH
ee34a56d9cb9cbd177c29dcaca509be9
23:34:19.714146 tramp-process-sentinel (5) # Sentinel called: `#<process *tramp/mock p*>' `killed: 9
'
--8<---------------cut here---------------end--------------->8---

As you see, Tramp is stalled for 19 seconds, and then the timeout kills
it. I will see whether I could rearrange the command sequence. Maybe
writing the temp file just in shorter chunks, or so.

Best regards, Michael.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.