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Re: misc zgrep patches

From: Paul Eggert
Subject: Re: misc zgrep patches
Date: Sat, 09 Dec 2006 10:48:05 -0800
User-agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux)

Mike Frysinger <address@hidden> writes:

> it's should be pretty easy ... find a large text file, gzip it, and then run:
> zgrep . | less
> and quickly after that hit 'q' ... your terminal should fill up with 
> lovely "grep: writing output: Broken pipe" errors

I don't observe any problem with gzip 1.3.8.  Do you?  Here's
how I tried to reproduce it:

  wget ftp://alpha.gnu.org/gnu/gzip/gzip-1.3.8.tar.gz
  zgrep -a . gzip-1.3.8.tar.gz | less

I observed no problem with "Broken pipe" errors.

This is running on Debian stable x86, built with GCC 4.1.1.

I did manage to reproduce the problem by ignoring SIGPIPE in the
parent process before invoking zgrep.  But that's the calling
process's screwup, not zgrep's.  (And I got the same problem with
plain grep, so zgrep is compatible.  :-)

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