From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26043 invoked by alias); 16 Jul 2014 20:30:01 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 25997 invoked by uid 89); 16 Jul 2014 20:29:59 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=3.0 required=5.0 tests=AWL,BAYES_05,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-qg0-f66.google.com Received: from mail-qg0-f66.google.com (HELO mail-qg0-f66.google.com) (209.85.192.66) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Wed, 16 Jul 2014 20:29:57 +0000 Received: by mail-qg0-f66.google.com with SMTP id a108so331339qge.5 for ; Wed, 16 Jul 2014 13:29:55 -0700 (PDT) MIME-Version: 1.0 X-Received: by 10.224.161.129 with SMTP id r1mr45976018qax.86.1405542595023; Wed, 16 Jul 2014 13:29:55 -0700 (PDT) Received: by 10.140.100.181 with HTTP; Wed, 16 Jul 2014 13:29:54 -0700 (PDT) In-Reply-To: References: Date: Wed, 16 Jul 2014 20:30:00 -0000 Message-ID: Subject: Re: Some programs (vi, ssh) crash when screen buffer height is big From: sous lesquels To: cygwin@cygwin.com Content-Type: text/plain; charset=UTF-8 X-SW-Source: 2014-07/txt/msg00186.txt.bz2 A few more things to add: - This crashes under the regular Windows console, i.e. run cmd.exe, then bash, then follow the above - It also crashes under some other emulators (I actually noticed it under ConEmu, see https://code.google.com/p/conemu-maximus5/issues/detail?id=1644), though this is likely due to the fact the regular Windows console is used underneath - When I said "screen buffer size", I mean the option in the Windows console - right click on the cmd.exe taskbar, Properties, Layout tab, Screen Buffer Size / Height - I could reproduce with 1000. It does not seem to be reproducible with low values (e.g. I tried with 100, 200, 500 and it seemed to work - not sure if it would have broken later, but it's not always reproducible as it is with 1000+) On Wed, Jul 16, 2014 at 4:10 PM, sous lesquels wrote: > **** Environment > > CYGWIN_NT-6.1 1.7.29(0.272/5/3) 2014-04-07 13:46 > Windows 7 > > **** Steps to reproduce the issue: > > - With vi.exe > > Execute the following bash script: > > #!/bin/bash > for i in {1..123}; do > echo -e "\033[5A\033[50C\033[0;35mhello\033[0m" > head -n1000 /var/log/setup.log > done > vi /var/log/setup.log > > vi breaks with something as: > > 0 [main] vi 13200 C:\cygwin64\bin\vi.exe: *** fatal error - > cmalloc would have returned NULL > /4.sh: line 6: 13200 Hangup vi /var/log/setup.log > > (note 4.sh is the file name I used to put the above script in and run > it from there) and leaves a vi.exe.stackdump with the following > contents: > > Stack trace: > Frame Function Args > 001004D2D08 0018006F26E (001801E8666, 001801E8DD9, 00000000000, 00000229480) > 001004D2D08 00180046E32 (0000022A4E8, FF000000808080, FFFF000000FF00, > FF00FF000000FF) > 001004D2D08 00180046E72 (001801E8643, 00000000000, 00000000000, 00000000000) > 001004D2D08 00180043983 (00076D22F7E, 00000000000, 00000000000, 00000000000) > 001004D2D08 0018007B781 (FFFF000000FF00, FF00FF000000FF, > FFFFFF0000FFFF, 00180000088) > 001004D2D08 0018007B91F (00000000000, 00000000000, 00000000000, 00000000000) > 001004D2D08 0018007E024 (00000000000, 00000000000, 00000000000, 00000000000) > 001004D2D00 001801266FD (00000000000, 00000000000, 1A1311121C011615, > 001802E2788) > 001004D4160 0018011197B (00000000000, 00000000000, 1A1311121C011615, > 001802E2788) > End of stack trace > > - With ssh.exe > > ssh to some machine (Linux in my case) and execute the following bash script: > > #!/bin/bash > for i in {1..123}; do > echo -e "\033[5A\033[50C\033[0;35mhello\033[0m" > head -n1000 /var/log/dmesg > done > vi /var/log/dmesg > > ssh breaks with: > > 0 [main] ssh 12464 C:\cygwin64\bin\ssh.exe: *** fatal error - cmalloc > would have returned NULL > > and leaves a ssh.exe.stackdump file in the current working directory > with the following contents: > > Stack trace: > Frame Function Args > 006000A267F 0018006F26E (001801E8666, 001801E8DD9, 00000000000, 00000226B60) > 006000A267F 00180046E32 (00000227BC8, FF000000808080, FFFF000000FF00, > FF00FF000000FF) > 006000A267F 00180046E72 (001801E8643, 00000000000, 00000000000, 00100000002) > 006000A267F 00180043983 (00076D22F7E, 00000000000, 0018007B522, 0000000270E) > 006000A267F 0018007B781 (FFFF000000FF00, FF00FF000000FF, > FFFFFF0000FFFF, 00180000088) > 006000A267F 0018007B91F (000000001DC, 00000000000, 00000000000, 00000000000) > 006000A267F 0018007E024 (00600077990, 00000000007, 00600077990, 00000000007) > 006000A0490 001801266FD (00100426798, 00000000000, 00000000000, 00000000000) > 0060006E850 0018011197B (00000000000, 00000000000, 00000000000, 00000000000) > 0060006E850 00000004000 (00000000000, 00000000000, 00000000000, 21EF00000000) > 0060006E850 00100426798 (00000000000, 001004928A0, 2BE9E0C5343523AB, > 00000228090) > 0060006E850 00600068670 (001004928A0, 2BE9E0C5343523AB, 00000228090, > 00000000000) > 0060006E850 003FEF96000 (001004928A0, 2BE9E0C5343523AB, 00000228090, > 00000000000) > End of stack trace > > **** More information: > > - For both variants, you may need to tweak the number 123 in the for > loop above or the location of files if you don't have these - they > should be there, but if not pick any file with some log-like text in > it (a few hundred lines should be enough) > > - The variants are just quick and dirty ways to reproduce - crashes > happen in regular work in various situations (i.e. real scenarios, not > contrived as above) > > - Crashes can be reproduced always > > - Taking the same steps as above when running from Cygwin terminal > (i.e. the one that comes bundled with Cygwin itself) does not result > in a crash -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple