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From: Dave Love <d.love@dl.ac.uk>
Cc: rms@gnu.org,  emacs-devel@gnu.org
Subject: Re: 64-bit lossage
Date: 22 Jul 2002 17:08:05 +0100	[thread overview]
Message-ID: <rzq65z7vj8a.fsf@albion.dl.ac.uk> (raw)
In-Reply-To: je4reyjfvm.fsf@sykes.suse.de

Andreas Schwab <schwab@suse.de> writes:

> Just built Emacs from CVS head as of today on alpha-suse-linux, and it
> works.

Thanks.

I made a guess and found what causes the problem (segv in GC while
shrinking the gap).

You lose when USE_MMAP_FOR_BUFFERS is defined on 64-bit targets.  [For
some reason, this isn't defined on Solaris, 32- or 64-bit, which I
think means you can't reclaim the memory used by deleted buffer.]  I
assume there is some type error introduced since 21.2, which works.
Could someone have a look at that code?  I worked on the mmap stuff
originally, but I don't remember much about it, and it's all changed
since then.

I still think the special-purpose mmap-ism should die in favour of
using dlmalloc on non-GNU systems instead of the currently-provided
gmalloc.  As far as I remember, the only objection was that it might
not be as portable; I haven't seen any evidence for that, and it is
claimed to be `among the most portable' mallocs.

  reply	other threads:[~2002-07-22 16:08 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-07-01 16:18 64-bit lossage Dave Love
2002-07-02 19:45 ` Richard Stallman
2002-07-03 18:49   ` Andreas Schwab
2002-07-17 11:25     ` Dave Love
2002-07-17 19:47       ` Andreas Schwab
2002-07-22 16:08         ` Dave Love [this message]
2002-07-22 18:52           ` Ken Raeburn
2002-07-17 11:24   ` Dave Love
2002-07-17 12:43     ` Stefan Monnier
2002-07-18 14:55     ` Richard Stallman
2002-07-18 22:23       ` Ken Raeburn
2002-07-19 20:56         ` Richard Stallman
2002-07-20 21:58           ` Ken Raeburn
2002-07-23 22:09         ` Dave Love
2002-07-24 13:34           ` Ken Raeburn
2002-07-29 22:35             ` Dave Love
2002-07-21 11:35 ` Ken Raeburn
2002-07-21 14:05   ` Ken Raeburn
2002-07-23 22:14     ` Dave Love
2002-07-23 22:12   ` Dave Love
2002-07-26  7:02     ` Ken Raeburn
2002-07-29 22:43       ` Dave Love
2002-07-30 14:56         ` Ken Raeburn
2002-07-31  5:55           ` Richard Stallman
2002-08-01 17:19             ` Ken Raeburn
2002-08-01 21:19               ` Paul Eggert
2002-08-01 23:37                 ` Ken Raeburn
2002-08-01 23:50                   ` Paul Eggert
2002-08-03  7:48                     ` Ken Raeburn
2002-08-02 22:13                 ` Richard Stallman
2002-08-03  0:03                   ` Paul Eggert
2002-08-04 23:24                     ` Richard Stallman
2002-08-09  7:07                 ` Stefan Monnier

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