Path: csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!news.glorb.com!usenet.stanford.edu!not-for-mail From: Linda Walsh Newsgroups: gnu.bash.bug Subject: posix handling of mapfile: SEGFAULT Date: Sun, 11 Oct 2015 14:57:17 -0700 Lines: 56 Approved: bug-bash@gnu.org Message-ID: NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: usenet.stanford.edu 1444600659 14131 208.118.235.17 (11 Oct 2015 21:57:39 GMT) X-Complaints-To: action@cs.stanford.edu To: bug-bash Envelope-to: bug-bash@gnu.org User-Agent: Thunderbird X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x (no timestamps) [generic] X-Received-From: 173.164.175.65 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:11621 This was in the 2nd half of the note in the read&env+POSIX=>SEGFAULT, but think it got missed by focus on the 1st part. # I was doing some syntax testing and decided to try posix mode # (as it disallows various vague or unclear constructs) # in the working cases yielded the same results, but # in 2 cases it returned a SEGFAULT. > b= mapfile b <<< x; echo $? 0 > declare -p b Segmentation fault (core dumped) # another example of bash not returning consistent errno results # ( |;>| ducking while smirking) ok, I vote for disallowing this # type of result return. The 2nd flavor: > b= mapfile b a <<< x > declare -p a b bash: declare: a: not found Segmentation fault (core dumped) # odd, this time it dumped on printing 'b'; still not so great # status returning there... # hmmm... I'm guessing that fixing these to not return # segfaults won't be likely to get me better status # returns for my type -P problems....*sigh* # vitals: > $0 --version GNU bash, version 4.3.39(1)-release (x86_64-unknown-linux-gnu) Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later > whence bash bash is /bin/bash Ishtar:/Torrents/Library/2014Q1> ldd /bin/bash linux-vdso.so.1 (0x00007fff396eb000) libdl.so.2 => /lib64/libdl.so.2 (0x0000003001400000) libc.so.6 => /lib64/libc.so.6 (0x0000003000c00000) /lib64/ld-linux-x86-64.so.2 (0x000055da52cbc000) > uname -a Linux Ishtar 4.1.0-Isht-Van #2 SMP PREEMPT Tue Jun 23 07:52:09 PDT 2015 x86_64 x86_64 x86_64 GNU/Linux