X-Recipient: archive-cygwin AT delorie DOT com
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2BC6A385840F
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1693177705;
	bh=FHrhyovhUeIl+6aub5qhC0plwscmAJrCBSrTyUmKmgA=;
	h=References:In-Reply-To:Date:Subject:To:Cc:List-Id:
	 List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe:
	 From:Reply-To:From;
	b=Wvvktz3ovHjMughMfJECBWawJqXz9rtCNu6NzpqujXJxTvzmqd8KEBo55B98ueUxk
	 FSBaJCysklFK+bVsfBl8ZTB/Qp19cOnk47SG2IE1sjdmE3l9H3s5pRNh4bSxHzIiVK
	 XgScfm0lzEXVxhWeTynR0E0rUshgGtILg/0fif+g=
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 029293858D28
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20221208; t=1693177684; x=1693782484;
 h=cc:to:subject:message-id:date:from:in-reply-to:references
 :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id
 :reply-to;
 bh=FoggED2jjAl7IsgpKCXC3/wGpUqD9yNDf3zVd5pIIy4=;
 b=cFKgx5xla/cjc4gi4jEh5MzBVYHqp6IiAbfGSty2Ru2mJ3RkiOB9rg2d8DFXW78Fl+
 xwAUn+TcgL60QCCuFnGqUlJkKSXFwa4u+5K47KNN/qq+t8wv+tn3XpnzaP4d0tIMpSsc
 z68ATFgMFJCJpeIZ+9wbxCn1K/WO5rwmf2FYJMC8LaGTU7jUYBkuGbYMM4ekIUfxLGoN
 sfuKAMzxbi8IUcOkV1E1AAcx+l3PNuWFQV3zAMo4iVonAsdtPl+zf1McJ+b0XO9hMd7i
 lML55H3C2NGNT2u0BpY7FTu5xcwnbvskGhlW/W+JYVny3rABqG3JAlTWrIKn1rdofgnD
 S5kg==
X-Gm-Message-State: AOJu0YxF4FdD3zXN+iOX2kCgNe6eSlUstWNa3G/Ra8Jk9PDDKGnLreVt
 vb5BPhbqeE3aFqS42kQnplJqC+HJC1ZA8ayCmicfxGWb7eE=
X-Google-Smtp-Source: AGHT+IGfDFbLetapaahlb6R23U5RfICBRkWTwnXJ6zZEI+QjPSZh/6FNa//SSvKZMN+G1WZEyRMK+ohXEdY0j3IpxDg=
X-Received: by 2002:a05:6512:ea4:b0:4fb:8c52:611 with SMTP id
 bi36-20020a0565120ea400b004fb8c520611mr22508523lfb.38.1693177684170; Sun, 27
 Aug 2023 16:08:04 -0700 (PDT)
MIME-Version: 1.0
References: <e0fa509d-890a-2db7-c91f-2b1d904a9a1e AT comcast DOT net>
 <0b55205e-fc7c-98cf-c186-783e5c0655b0 AT comcast DOT net>
In-Reply-To: <0b55205e-fc7c-98cf-c186-783e5c0655b0@comcast.net>
Date: Sun, 27 Aug 2023 19:07:36 -0400
Message-ID: <CAOh4nm=yYKtBWhWOwW9rUxu3y8vFOgRA+rW-tTzq-=q63OL_0A@mail.gmail.com>
Subject: Re: gawk core dumped on too many input values
To: cygwin AT cygwin DOT com
Cc: Ed Morton <mortoneccc AT comcast DOT net>
X-Spam-Status: No, score=0.3 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, HTML_MESSAGE,
 RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS,
 TXREP autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
 server2.sourceware.org
X-Content-Filtered-By: Mailman/MimeDel 2.1.30
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.30
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Jeremy Hetzler via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Jeremy Hetzler <jeremyhetzler AT gmail DOT com>
Content-Type: text/plain; charset="utf-8"
Sender: "Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 37RN8PnX031631

On Sun, Aug 27, 2023 at 2:25 PM Ed Morton via Cygwin <cygwin AT cygwin DOT com>
wrote:
>
> This (original email below) turned out to be a general cygwin issue, not
> a gawk issue:
>
> $ LC_ALL=C sed 's/x/y/' $(seq 1000000)
> Segmentation fault (core dumped)
>
> $ LC_ALL=C grep 'foo' $(seq 1000000)
> Segmentation fault (core dumped)
>

Seems that all commands linked with cygwin1.dll will fault if you pass them
a long enough arglist.

For me, /bin/true faults on {1..258231} but not {1..258230}.

> $ /bin/true {1..258230}
>


> $ /bin/true {1..258231}
> Segmentation fault (core dumped)


strace, which is not linked with cygwin1.dll, exits cleanly.

> $ /bin/strace {1..300000}
> -bash: /bin/strace: Argument list too long


See this page [1] on maximum argument lengths.

It would be nice to document this limit, whatever it is.

It would also be nice to return an error to the shell on too-long arglist.

$ cat true.exe.stackdump
>
Exception: STATUS_STACK_OVERFLOW at rip=7FFD41BD4646
> rax=0000000000051F10 rbx=0000000800009991 rcx=00000007FFE03C50
> rdx=00007FFD41BF58A0 rsi=0000000000000000 rdi=0000000000000000
> r8 =FEFEFEFEFEFEFF42 r9 =00007FFD41BF5820 r10=FEFEFEFEFEFEFEFF
> r11=FEFEFEFEFEFEFEFF r12=000000080000998D r13=00000007FFFFCDF0
> r14=0000000000000000 r15=0000000000000000
> rbp=00000007FFFFCD30 rsp=00000007FFFFCC38
> program=C:\cygwin64\bin\true.exe, pid 44496, thread
> cs=0033 ds=002B es=002B fs=0053 gs=002B ss=002B
> Stack trace:
> Frame         Function      Args
> 0007FFFFCD30  7FFD41BD4646 (7FFD41A08035, 7FFD41A06F80, 000000000000,
> 000000000000) cygwin1.dll+0x1D4646
> 0007FFFFCD30  000000249F10 (7FFD41A06F80, 000000000000, 000000000000,
> 000000000000)
> 0007FFFFCD30  7FFD41BF5800 (000000000000, 000000000000, 000000000000,
> 000000000000) cygwin1.dll+0x1F5800
> 0007FFFFCD30  7FFD41A08035 (000000000000, 000000000000, 000000000000,
> 000000000000) cygwin1.dll+0x8035
> 0007FFFFFFF0  7FFD41A05C86 (000000000000, 000000000000, 000000000000,
> 000000000000) cygwin1.dll+0x5C86
> 0007FFFFFFF0  7FFD41A05D34 (000000000000, 000000000000, 000000000000,
> 000000000000) cygwin1.dll+0x5D34
> End of stack trace
> Loaded modules:
> 000100400000 true.exe
> 7FFD52F30000 ntdll.dll
> 7FFD52250000 KERNEL32.DLL
> 7FFD50940000 KERNELBASE.dll
> 0005EE2D0000 cygintl-8.dll
> 7FFD41A00000 cygwin1.dll
> 0003F9F70000 cygiconv-2.dll
> 7FFD51C70000 advapi32.dll
> 7FFD51FD0000 msvcrt.dll
> 7FFD525A0000 sechost.dll
> 7FFD52650000 RPCRT4.dll
> 7FFD4F3A0000 CRYPTBASE.DLL
> 7FFD50380000 bcryptPrimitives.dll



> $ uname -a
> CYGWIN_NT-10.0-22621 nzxt 3.4.8-1.x86_64 2023-08-17 17:02 UTC x86_64 Cygwin


Thanks,
Jeremy Hetzler

[1] https://www.in-ulm.de/~mascheck/various/argmax/

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple