Experimental Physics and
Industrial Control System

Hello,

Can the workaround as suggested in this link https://sourceforge.net/p/linux-gpib/bugs/50/#85e8

be incorporated for the drvLinuxGpib.c in the ASYN module.

The workaround suggests to mask all the signals during call to ibrd() or ibwrt()

Thanks and regards,

Kuldeep

The text of the above link is reproduced as below

"When a program receives a signal while it is in a call to a linux-gpib driver it can happen that the application hangs. This is because for historic reasons the linux-gpib driver framework does not properly handle the return of -ERESTARTSYS from its device drivers. Unfortunately to fix this systematically in the package is a lot of work. The symptoms of a hang, due to signals, are that the program receiving the signal hangs, blocking other programs from accessing the device and in the console log you can find messages such

as: