On 5/24/13 9:30 AM, Roman Rakus wrote:
The race is in do-while loop in wait_for(). At the start of wait_for() we
are blocking SIGCHLD, however echo process ends during the loop and we
don't register it (don't handle SIGCHLD, which is sent).
Looking at the code, there is MUST_UNBLOCK_CHLD. May it make any harm to
enable it by default?
I spent a lot of time looking at this yesterday, and I have it pretty much
fixed. The problem is in the trap handling code, not wait_for(). The trap
problem ends up corrupting the jobs data structure, which is why wait_for
misbehaves.
Chet