On 11 Dec 2015 07:06, Eric Blake wrote: > On 12/11/2015 06:42 AM, Chet Ramey wrote: > > On 12/11/15 12:40 AM, Yoriyuki Yamagata wrote: > >> Dear list, > >> > >> I found that bash tries to close the same fd twice, consecutively. I’m > >> using Mac OS X Yosemite, and bash is the newest available (bash-master > >> from http://tiswww.case.edu/php/chet/bash/bashtop.html yesterday). > > > > That's harmless. > > Only if bash is single-threaded (it is) and if no signal handler can > create fds (that, I'm less sure of). It is absolutely harmful in a > multi-threaded program, or in a program where a signal handler might > open an fd and the signal can occur in the window between the two close()s.
what about loadable bash plugins ? :) -mike
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