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From: Junio C Hamano <gitster@pobox.com>
To: Todd Zullinger <tmz@pobox.com>
Cc: "Andreas Schwab" <schwab@linux-m68k.org>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	git@vger.kernel.org,
	"Carlo Marcelo Arenas Belón" <carenas@gmail.com>,
	"Beat Bolli" <dev+git@drbeat.li>,
	"Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
	"Jeff King" <peff@peff.net>
Subject: Re: [PATCH] t7812: expect failure for grep -i with invalid UTF-8 data
Date: Sun, 01 Dec 2019 22:13:15 -0800	[thread overview]
Message-ID: <xmqqfti3z24k.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20191201183203.GC17681@pobox.com> (Todd Zullinger's message of "Sun, 1 Dec 2019 13:32:03 -0500")

Todd Zullinger <tmz@pobox.com> writes:

> After Andreas' missing redirect fix, that still fails on
> s390x (not surprisingly).  But now systems with JIT enabled
> fail at:
> ...
> Here's how I changed the commit message locally.  I was
> going to wait a day or so for any other feedback on the
> actual test changes, being a holiday weekend in the US (and
> more generally a weekend).
>
> 1:  d9aeaf0c98 ! 1:  d0c083db78 t7812: expect failure for grep -i with invalid UTF-8 data
>     @@ Commit message
>          8a5999838e (grep: stess test PCRE v2 on invalid UTF-8 data, 2019-07-26)
>          and 870eea8166 (grep: do not enter PCRE2_UTF mode on fixed matching,
>          2019-07-26) they lacked a redirect which caused them to falsely succeed
>     -    on most architectures.  They failed on big-endian arches where the test
>     -    never reached the portion which was missing the redirect.
>     +    on most systems.  The 'grep -i' test failed on systems where JIT was
>     +    disabled as it never reached the portion which was missing the redirect.
>      
>     -    A recent patch add the missing redirect and exposed the fact that the
>     -    'PCRE v2: grep non-ASCII from invalid UTF-8 data with -i' test fails on
>     -    all architectures.
>     +    A recent patch added the missing redirect and exposed the fact that the
>     +    'PCRE v2: grep non-ASCII from invalid UTF-8 data with -i' test fails
>     +    regardless of whether JIT is enabled.
>      
>          Based on the final paragraph in in 870eea8166:
>
> Thanks for pointing out the proper reasoning to use in the
> commit message Andreas.  I hadn't looked at the Fedora pcre2
> package to see that it explicitly disables JIT on s390x.

OK.  I locally edited the log message to match the above.  I guess
this forms an integral part of a topic that Andreas started with the
"missing redirects" fix, so let me queue your patch directly on the
same topic branch, without creating a separate one.

Thanks, both.

  reply	other threads:[~2019-12-02  6:13 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-21 19:40 [PATCH] grep: use custom JIT stack with pcre2 Carlo Marcelo Arenas Belón
2019-07-24 15:14 ` [PATCH 0/3] grep: PCRE JIT fixes Ævar Arnfjörð Bjarmason
2019-07-24 16:18   ` Junio C Hamano
2019-07-24 20:03     ` Ævar Arnfjörð Bjarmason
2019-07-26 15:08   ` [PATCH v2 0/8] grep: PCRE JIT fixes + ab/no-kwset fix Ævar Arnfjörð Bjarmason
2019-07-26 20:27     ` Junio C Hamano
2019-07-29  9:20       ` Ævar Arnfjörð Bjarmason
2019-07-29 16:12         ` Junio C Hamano
2019-07-26 15:08   ` [PATCH v2 1/8] grep: remove overly paranoid BUG(...) code Ævar Arnfjörð Bjarmason
2019-07-26 15:08   ` [PATCH v2 2/8] grep: stop "using" a custom JIT stack with PCRE v2 Ævar Arnfjörð Bjarmason
2019-07-29  0:33     ` Carlo Arenas
2019-07-26 15:08   ` [PATCH v2 3/8] grep: stop using a custom JIT stack with PCRE v1 Ævar Arnfjörð Bjarmason
2019-07-29  1:26     ` Carlo Arenas
2019-07-26 15:08   ` [PATCH v2 4/8] grep: consistently use "p->fixed" in compile_regexp() Ævar Arnfjörð Bjarmason
2019-07-29  1:48     ` Carlo Arenas
2019-07-29  9:05       ` Ævar Arnfjörð Bjarmason
2019-07-29  9:13         ` Ævar Arnfjörð Bjarmason
2019-07-29 16:23           ` Junio C Hamano
2019-07-26 15:08   ` [PATCH v2 5/8] grep: create a "is_fixed" member in "grep_pat" Ævar Arnfjörð Bjarmason
2019-07-26 15:08   ` [PATCH v2 6/8] grep: stess test PCRE v2 on invalid UTF-8 data Ævar Arnfjörð Bjarmason
2019-07-26 20:34     ` Junio C Hamano
2019-07-26 21:55       ` Ævar Arnfjörð Bjarmason
2019-07-29  3:06     ` Carlo Arenas
2019-11-26 21:50     ` [PATCH] t7812: add missing redirects Andreas Schwab
2019-11-26 22:27       ` Johannes Schindelin
2019-11-26 23:11         ` Andreas Schwab
2019-11-27 11:58           ` Jeff King
2019-11-30  0:46       ` [PATCH] t7812: expect failure for grep -i with invalid UTF-8 data Todd Zullinger
2019-11-30  8:00         ` Andreas Schwab
2019-12-01 16:33           ` Junio C Hamano
2019-12-01 17:09             ` Andreas Schwab
2019-12-01 18:32             ` Todd Zullinger
2019-12-02  6:13               ` Junio C Hamano [this message]
2019-07-26 15:08   ` [PATCH v2 7/8] grep: do not enter PCRE2_UTF mode on fixed matching Ævar Arnfjörð Bjarmason
2019-07-26 20:36     ` Junio C Hamano
2019-07-26 15:08   ` [PATCH v2 8/8] grep: optimistically use PCRE2_MATCH_INVALID_UTF Ævar Arnfjörð Bjarmason
2019-07-26 21:07     ` Junio C Hamano
2019-07-26 21:53       ` Ævar Arnfjörð Bjarmason
2019-07-26 21:57         ` Ævar Arnfjörð Bjarmason
2021-01-24  2:12     ` [PATCH v3 0/4] grep: better support invalid UTF-8 haystacks Ævar Arnfjörð Bjarmason
2021-01-24 11:48       ` [PATCH v4 0/2] " Ævar Arnfjörð Bjarmason
2021-01-24 17:28         ` [PATCH v5 " Ævar Arnfjörð Bjarmason
2021-01-24 17:28         ` [PATCH v5 1/2] grep/pcre2 tests: don't rely on invalid UTF-8 data test Ævar Arnfjörð Bjarmason
2021-01-24 17:28         ` [PATCH v5 2/2] grep/pcre2: better support invalid UTF-8 haystacks Ævar Arnfjörð Bjarmason
2021-01-24 11:48       ` [PATCH v4 1/2] grep/pcre2 tests: don't rely on invalid UTF-8 data test Ævar Arnfjörð Bjarmason
2021-01-24 11:48       ` [PATCH v4 2/2] grep/pcre2: better support invalid UTF-8 haystacks Ævar Arnfjörð Bjarmason
2021-01-24 13:53         ` Ramsay Jones
2021-01-24 14:24           ` Ramsay Jones
2021-01-24 14:49             ` Ævar Arnfjörð Bjarmason
2021-01-24 16:10               ` Ramsay Jones
2021-01-24 17:29                 ` Ævar Arnfjörð Bjarmason
2021-01-24  2:12     ` [PATCH v3 1/4] grep/pcre2 tests: don't rely on invalid UTF-8 data test Ævar Arnfjörð Bjarmason
2021-01-24  2:12     ` [PATCH v3 2/4] grep/pcre2: simplify boolean spaghetti Ævar Arnfjörð Bjarmason
2021-01-24  5:33       ` Junio C Hamano
2021-01-24 10:45         ` Johannes Sixt
2021-01-24  2:12     ` [PATCH v3 3/4] grep/pcre2: further " Ævar Arnfjörð Bjarmason
2021-01-24  2:12     ` [PATCH v3 4/4] grep/pcre2: better support invalid UTF-8 haystacks Ævar Arnfjörð Bjarmason
2019-07-24 15:14 ` [PATCH 1/3] grep: remove overly paranoid BUG(...) code Ævar Arnfjörð Bjarmason
2019-07-24 15:14 ` [PATCH 2/3] grep: stop "using" a custom JIT stack with PCRE v2 Ævar Arnfjörð Bjarmason
2019-07-24 16:24   ` Junio C Hamano
2019-07-24 20:06     ` Ævar Arnfjörð Bjarmason
2019-07-25  5:11       ` Carlo Arenas
2019-07-24 15:14 ` [PATCH 3/3] grep: stop using a custom JIT stack with PCRE v1 Ævar Arnfjörð Bjarmason
2019-07-26 13:15   ` Carlo Arenas
2019-07-26 13:50     ` Ævar Arnfjörð Bjarmason
2019-07-26 14:12       ` Carlo Arenas
2019-07-26 14:43         ` Ævar Arnfjörð Bjarmason
2019-07-26 20:26           ` [RFC PATCH 0/2] PCRE1 cleanup Carlo Marcelo Arenas Belón
2019-07-26 20:26             ` [RFC PATCH 1/2] grep: make sure NO_LIBPCRE1_JIT disable JIT in PCRE1 Carlo Marcelo Arenas Belón
2019-07-26 20:26             ` [RFC PATCH 2/2] grep: refactor and simplify PCRE1 support Carlo Marcelo Arenas Belón

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