bug#29446: closed (GNU grep 3.1 fails test suite when PCRE lacks JIT)

[GNU bug Tracking System]

Your message dated Wed, 9 Sep 2020 16:10:41 -0700
with message-id <5878c1f6-3f5c-f663-4276-d8eece95fe1d@cs.ucla.edu>
and subject line Re: GNU grep 3.1 fails test suite when PCRE lacks JIT
has caused the debbugs.gnu.org bug report #29446,
regarding GNU grep 3.1 fails test suite when PCRE lacks JIT
to be marked as done.

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29446: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=29446
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> Subject: 
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> GNU grep 3.1 fails test suite when PCRE lacks JIT
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> Date: 
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> Sat, 25 Nov 2017 15:35:03 -0600
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> Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.0
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> Hi there grep developers,
>
> I'm trying to package GNU grep 3.1 on 64-bit PowerPC (big-endian) for
> our Linux distribution, Adélie Linux.  It seems to be working quite
> well, except there is a failing test: pcre-jitstack.
>
> "grep: internal PCRE error: -21" (which is PCRE_ERROR_RECURSIONLIMIT)
> is printed.  I believe that this is because we have to disable JIT on
> the ppc64 platform (because the JIT compiler is badly broken on it).
>
> I am not very familiar with either of the grep or PCRE codebases so I
> am not sure exactly how to best skip the test when PCRE does not have
> JIT support enabled.  Otherwise, I would have included a patch.
>
> Thank you for your time.
>
> Best regards,
> - --arw
>
> - -- 
> A. Wilcox (awilfox)
> Project Lead, Adélie Linux
> http://adelielinux.org
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--- Begin Message --- Subject: Re: GNU grep 3.1 fails test suite when PCRE lacks JIT Date: Wed, 9 Sep 2020 16:10:41 -0700 User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

On 1/2/20 1:47 PM, Thomas Deutschmann wrote:

I managed to reproduce the error using pure Debian:

Thanks, with that recipe I reproduced the problem on Ubuntu 18.04.5, and installed the attached. I'll boldly close the bug report.

libpcre is quite a pain to use, and makes 'grep' less reliable. Perhaps somebody with some time could see whether libpcre2 is any better.

0001-grep-fix-PCRE-JIT-test-when-JIT-not-available.patch
Description: Text Data

0002-grep-fix-logic-for-growing-PCRE-JIT-stack.patch
Description: Text Data

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