Tcl Source Code

platform: windows 2008 x64 (24 core mashine with 64GB of memory)
tcl: 8.5.17 x86 threaded.

Occurs in huge tcl-application at a customer of me very sporadically.

It runs with 10 threads as windows service on-load, starts again and again multiple processes. The processes will be started within tcl interpreter from script through "exec ${process} {*}$args 2>@1".

Sporadically (half hour up to 2 hours) some child process suspends itself (or tcl/windows does?) directly after start (still no work done) - that occurs 10 times until all threads "fall asleep".
I can see in task manager the process is really suspended. The calling thread wait for end of child process forever, also if I resume it in task manager - the child process does its work and ends successful, but calling thread doesn't wake up with and still "sleeps" further;

All the programs are different: perl.exe, java.exe, and also tclsh, but all are console applications.

Unfortunately I can't reproduce it in my low-budget VM's, so possibly depends on a customer system configuartion, policies, antivirus etc.

Thanks in advance for each clue.

sebres.

Reopened, because occurs again once (seems to be very rare now)...
Continue observing.

fixed in core-8-5-branch-fix-1997007 (and in fix-1997007 for 8.6/trunk)

Possible fix for it rebased as branch fix-1997007, see [3ce2af8196]