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Re: Possible bug: Race condition when calling external commands during t


From: Andreas Schwab
Subject: Re: Possible bug: Race condition when calling external commands during trap handling
Date: Thu, 03 May 2012 10:06:09 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.96 (gnu/linux)

Bob Proulx <address@hidden> writes:

> And lastly I will comment that you are doing quite a bit inside of an
> interrupt routine.  Typically in a C program it is not safe to perform
> any operation that may call malloc() within an interupt service
> routine since malloc isn't reentrant.  Bash is a C program and I
> assume the same restriction would apply.

Traps are executed only at command boundaries.  Executing them in a
signal handler would make them completely unusable, of course.

Andreas.

-- 
Andreas Schwab, address@hidden
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