Hi David,

What is the function that is actually failing? I would assume it���s something called in #internalRun.

I assume you have tried executing the process from the command line (quick check I always do when finding these kind of problems :P).

$ echo -n $(pgrep -a -f Pharo | grep ''.image'' | grep -v ''.bash''| grep -v XXX)

G


El 4 feb 2022, a las 17:48, bajger@gmail.com escribi��:

Greetings Pharoers!

I have following problem when using OSSubprocess library. If I run a method that uses code below, it fails: Error: Error: posix_spawn(), code: 9, description: Bad file descriptor

Any thoughts, hints are welcome!

My code redirects stdout, stdin in order to catch system outputs from inside of Pharo. 

Subprocess code does following: 
OSUnixSubprocess>>runAndWaitWithStdOutput
self 
		redirectStdout;
		redirectStderr;
		runAndWaitOnExitDo: [ :termProcess :outString :errString | 
			termProcess isSuccess
				ifTrue: [ ^ outString ]
				ifFalse: [ "commands to handle ex message here" ] ]

Now if I run, it fails:

Error: Error: posix_spawn(), code: 9, description: Bad file descriptor
OSSUnixSystemAccessor(Object)>>error:
OSSUnixSystemAccessor>>strerror:message:
OSSUnixSubprocess>>internalRun
[ self internalRun ] in OSSUnixSubprocess>>run in Block: [ self internalRun ]
BlockClosure>>ensure:
OSSUnixSubprocess>>run
OSSUnixSubprocess>>runAndWaitOnExitDo:
OSSUnixSubprocess>>runAndWaitWithStdOutput
...
..
.
PhLImageProcessListCliCommand(PhLCliCommand)>>executeOSShellCommand

So it seems that OSUnixSubprocess uses some file that remains opened probably in OS?
Command that is passed to OSSubprocess is generated by args: 
^ Array with: 'echo' with: '-n' with: ('$(pgrep -a -f Pharo | grep ''.image'' | grep -v ''.bash''| grep -v {1})' format: {self currentVMPid asString})