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To: cygwin AT cygwin DOT com
From: Achim Gratz <Stromeko AT NexGo DOT DE>
Subject: Re: xz -9 : Cannot allocate memory
Date: Fri, 30 Aug 2013 09:26:41 +0000 (UTC)
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References: <50A41697 DOT 3080406 AT tiscali DOT co DOT uk>	<loom DOT 20130829T155739-66 AT post DOT gmane DOT org>	<loom DOT 20130829T162752-851 AT post DOT gmane DOT org>	<20130829151121 DOT GR21571 AT calimero DOT vinschen DOT de> <87ioyowbq9 DOT fsf AT Rainer DOT invalid>
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Achim Gratz <Stromeko <at> nexgo.de> writes:
> > Load xz under GDB, break
> > on "cygwin_exit", run it, and when it hits the breakpoint, observer the
> > memory layout, either in GDB, or by cat'ing /proc/≤xz's pid>/maps.
> 
> OK, if it is still reproducible tomorrow I'll have a look.

I'm not sure I'm looking at the right place, but these seem to be the
relevant differences between the non-working and the working version
(initial heap set to 1MiB) memory maps (I've cut the lines with different
thread ID etc.).

--- map_0x0.txt 2013-08-30 11:14:33.717797000 +0200
+++ map_0x1.txt 2013-08-30 11:12:29.171669000 +0200
@@ -1,40 +1,41 @@
[...]
-002F0000-00314000 rw-p 00000000 0000:0000 0                   [win heap 0
default grow]
-00314000-003F0000 ===p 00024000 0000:0000 0                   [win heap 0
default grow]
+00300000-00324000 rw-p 00000000 0000:0000 0                   [win heap 0
default grow]
+00324000-00400000 ===p 00024000 0000:0000 0                   [win heap 0
default grow]
[...]
 20000000-20090000 rw-p 00000000 0000:0000 0                   [heap]
-20090000-38000000 ===p 00090000 0000:0000 0                   [heap]
+20090000-20400000 ===p 00090000 0000:0000 0                   [heap]
+34C80000-58CD0000 rw-p 00000000 0000:0000 0
 58CD0000-58CD1000 r--p 00000000 76D4:F5BA 2533274790634491   
/usr/bin/cyglzma-5.dll
 58CD1000-58CE8000 r-xp 00001000 76D4:F5BA 2533274790634491   
/usr/bin/cyglzma-5.dll


Regards,
Achim.



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