X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f X-Recipient: djgpp AT delorie DOT com Message-ID: <48742FD3.4080701@iki.fi> Date: Wed, 09 Jul 2008 06:26:11 +0300 From: Andris Pavenis User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: djgpp AT delorie DOT com Subject: Re: libstdc++ writev/2.04/patches upstream? References: <200807070405 DOT m67451dZ010910 AT delorie DOT com> <200807071920 DOT m67JKA4v032518 AT envy DOT delorie DOT com> <487290E2 DOT 86197C00 AT yahoo DOT com> <200807072300 DOT m67N0t0Y005696 AT envy DOT delorie DOT com> <4872DFDB DOT 3E4BE7C1 AT yahoo DOT com> <200807080501 DOT m6851VZ8015818 AT envy DOT delorie DOT com> <4873E90E DOT B2B957F9 AT yahoo DOT com> In-Reply-To: <4873E90E.B2B957F9@yahoo.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: djgpp AT delorie DOT com CBFalconer wrote: > DJ Delorie wrote: ** and snipped references to nmalloc ** >>>> Did you ever resolve all the issues we had with it? >>> Never had any issues reported. >> http://www.delorie.com/archives/browse.cgi?p=djgpp/2008/02/25/00:55:16 > > Never saw them, and I just looked at that and at: > > > > (per Andris Pavenis) > > and I see nothing that I can attack, in fact nothing definite. > Bear in mind that I do not use XP. I do know I can crash the > original malloc system fairly easily. > The first message of the thread is http://www.delorie.com/djgpp/mail-archives/browse.cgi?p=djgpp-workers/2007/12/05/17:54:46 I included there the source of my initial test program used for profiling. Remove shuffling addresses and freeing memory, link it with nmalloc and You will get what I use for testing when large enough number of allocations were specified (like more that 1000000, You should have plenty of memory for that). This test program randomly crashed when linked with nmalloc and never for me if with DJGPP v2.04 own malloc (for this test slowness of free() does not matter of course). I do not know whether it is possible to reproduce the problem on system different from WinXP. Andris