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Question about two expressions in Common Lisp - backquote and backtick
Why does 1 work ? why does not 2 work?
(defun exprbis (&rest xs) `(+ (* 2 ,@xs) 1))
EXPRBIS
(defun exprbis (&rest xs) '(+ (* 2 ,@xs) 1))
debugger invoked on a SB-INT:SIMPLE-READER-ERROR in ...
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1
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440
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Process run via posix_spawn() results in defunct process immediately
Thank you in advance.
When I try to launch a cli-based music player via bash, all is well and the player (mplayer) works with a simple path passed on the command line (/home/pi/Music/*).
However, when ...
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0
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Can I reap child processes with a detached thread?
I have a scenario like this. Specifically on linux platforms with C++ code.
We develop code and APIs for the child process, which is then integrated with several parent applications.
Here's a snippet ...
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1
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802
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Flutter Web resize browser-window leads to a defunct context
I made a web-app with flutter and there are bar-charts. I want to refresh them if the screen size changes. This works fine if I switch between the browser window option "shrink" and "...
1
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0
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CRUD UX: general pattern to display legacy records that use a now-defunct combobox choice that no longer exists in combobox?
Subject says it all. Is there a go-to design/UX pattern to handle this situation? I'm using Winforms ComboBoxes, but the situation is applicable to any GUI. Moreover, this is difficult to search ...
3
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2
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2k
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ggmap error : 'get_openstreetmap' is defunct
I'm trying to build a map on R with ggmap library and an osm background however I get the bellow error.
library(ggmap) library(osmdata) library(devtools)
mad_map <- get_map(getbb("Limete, ...
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1
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why defunct process generate when call exec in shell script?
why defunct process generate when call exec in shell script?
Because some extra configure and sharelib should be set and preload before starting snmpd,
so I use shell script like bellow, but the ...
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1
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283
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postgresql.conf setting is ignored because it is defunct
I'm trying to add 2 settings to my postgresql.conf file (on a CentOS Greenplum Postgres 9.4 instance) and I'm getting this message back:
log_destination"": setting is ignored because it is ...
-1
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1
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1k
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Zombie processes, here we go again
I'm struggling a lot with multiprocessing/threading/subprocessing. What I'm basically trying to do is to execute every single binary available on my computer, I wrote a python script to do so. But I ...
2
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2
answers
2k
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Docker leaving zombie processes (vieux/sshfs)
I have a swarm of few services, and in the compose file there are few volumes created with the vieux/sshfs driver, which are used by the services.
The containers spawned by the services execute a ...
1
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1
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1k
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Daemon in python generates defunct/zombie linux process
I'm trying to spawn long processes from a flask application. So I have a main process that handles incoming web requests and from which I start daemons using the python-daemon library. Here is a ...
1
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1
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2k
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Airflow scheduler ends up stuck when restarting during long running job
I have a an airflow scheduler started with the setting --run-duration 86400 (24 hours).
After this time scheduler "dies" and will be automatically restarted.
This work fine as long as there is no long ...
3
votes
1
answer
2k
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subprocess becomes defunct, `communicate()` hangs
In python 2.7 on Ubuntu 14.04, I launch a process like this:
bag_process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
for i in range(5):
print "Countdown: {}".format(5 -...
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1
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Get information on a defunct process (AKA zombie)
How do I get all information about a defunct process?
For example, I would like to know: who is the parent process, what command was used to run this defunct process, reason why its dead, log...
...
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1
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3
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802
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How to grep multiline stack trace? Defunct threads are created with my solution
I have a file (application.log) where my applications store their logs. Sometimes I've got an Exception and I'd like to store only these exceptions in another file (exception.log). Each line of logs ...