Experimental Physics and
Industrial Control System

Mark Rivers via Tech-talk <tech-talk at aps.anl.gov> · Wed, 20 Dec 2023 22:52:02 +0000

Lewis,

I have replied to your issue on Github:

- You had an error when you started the IOC because envPaths could not be found.  This is probably because you did not change ARCH in ioctestIPServer/Makefile to match your EPICS_HOST_ARCH, so it did not create the envPaths file.
- When I run the IOC on linux-x86_64 it exits cleanly, I do not see any error messages.
- When I run the IOC on windows-x64-static I see 2 error messages and then it exits cleanly.

The problem may be specific to Darwin.  You are one of relatively few people who run EPICS on Darwin, so you may need to debug this yourself and submit a Pull Request to fix it.

Mark

-----Original Message-----
From: Tech-talk <tech-talk-bounces at aps.anl.gov> On Behalf Of J. Lewis Muir via Tech-talk
Sent: Wednesday, December 20, 2023 4:01 PM
To: EPICS Tech-Talk <tech-talk at aps.anl.gov>
Subject: asyn ioctestIPServer prints many accept errors after IOC exit?

Hello!

After exiting the ioctestIPServer of asyn 4-44-2, thousands of error messages get printed to the standard error stream.

I created an issue on GitHub for this a few days ago:

  https://github.com/epics-modules/asyn/issues/199

Since I didn't hear anything on that issue, I'm posting here.

The specific behavior is that after exiting ioctestIPServer, a "Software caused connection abort" error message gets printed to the standard error stream

----
2023/12/15 16:09:01.998 drvAsynIPServerPort: accept error on  ª  : fd=5, Software caused connection abort
----

followed by tens of "Socket operation on non-socket" error messages

----
2023/12/15 16:09:01.998 drvAsynIPServerPort: accept error on (null): fd=0, Socket operation on non-socket
----

followed by another "Software caused connection abort" error message, but for a different file descriptor (maybe the other server?)

----
2023/12/15 16:09:01.999 drvAsynIPServerPort: accept error on      : fd=4, Software caused connection abort
----

followed by thousands more of the "Socket operation on non-socket" error messages

----
2023/12/15 16:09:01.999 drvAsynIPServerPort: accept error on (null): fd=0, Socket operation on non-socket
----

Here's an example terminal session (using EPICS 7.0.7; the same problem also exists when using EPICS 7.0.8):

----
$ cd iocBoot/ioctestIPServer
$ ../../bin/darwin-aarch64/testIPServer st.cmd < envPaths Can't open envPaths: No such file or directory
dbLoadDatabase("../../dbd/testIPServer.dbd")
testIPServer_registerRecordDeviceDriver(pdbbase)
#The following command starts a server on port 5001
drvAsynIPServerPortConfigure("P5001","localhost:5001",2,0,0,0)
serverAddr: 0.0.0.0:5001
serverPort: 5001
drvAsynIPServerPortConfigure("P5002","localhost:5002",1,0,0,0)
serverAddr: 0.0.0.0:5002
serverPort: 5002
#asynSetTraceFile("P5001",-1,"")
asynSetTraceIOMask("P5001",-1,0x2)
#asynSetTraceMask("P5001",-1,0xff)
dbLoadRecords("../../db/testIPServer.db", "P=testIPServer:")
iocInit()
Starting iocInit
############################################################################
## EPICS R7.0.7
## Rev. 2023-11-28T21:51-0600
## Rev. Date build date/time:
############################################################################
iocRun: All initialization complete
ipEchoServer("P5001")
seq("ipSNCServer", "P=testIPServer:, PORT=P5002") sevr=info Sequencer release 2.2.9, compiled Fri Dec 15 15:36:22 2023 sevr=info Spawning sequencer program "ipSNCServer", thread 0x600003684000: "ipSNCServer"
sevr=info ipSNCServer[0]: all channels connected & received 1st monitor
epics> exit
2023/12/15 16:09:01.998 drvAsynIPServerPort: accept error on  ª  : fd=5, Software caused connection abort
2023/12/15 16:09:01.998 drvAsynIPServerPort: accept error on (null): fd=0, Socket operation on non-socket [previous line repeated tens of times sans timestamp differences]
2023/12/15 16:09:01.999 drvAsynIPServerPort: accept error on      : fd=4, Software caused connection abort
2023/12/15 16:09:01.999 drvAsynIPServerPort: accept error on (null): fd=0, Socket operation on non-socket [previous line repeated thousands of times sans timestamp differences]
----

Platform:

* Apple Silicon (EPICS_HOST_ARCH=darwin-aarch64)
* macOS Sonoma 14.1.1
* EPICS 7.0.8
* Asyn 4-44-2

Thanks!

Lewis

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System