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David McFarland a14a0e542d Cygwin: cygheap: fix fork error after heap has grown 
2f9b8ff0 introduced a problem where forks would sometimes fail with:

child_copy: cygheap read copy failed, 0x0..0x80044C750, done 0, windows pid 14032, Win32 error 299

When cygheap_max was > CYGHEAP_STORAGE_INITIAL, commit_size would be set to
allocsize(cygheap_max), which is an address, not a size.  VirtualAlloc would be
called to commit commit_size bytes, which would fail, and then child_copy would
be called with zero as the base address.

Fixes: 2f9b8ff00c ("Cygwin: decouple cygheap from Cygwin DLL")
Signed-off-by: David McFarland <corngood@gmail.com>
 		2023-04-18 10:06:53 +02:00
..
CVSChangeLogs.old
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cygserver Revert "sys/types.h: Don't include sys/_stdint.h" 2022-05-04 15:08:44 +02:00
cygwin Cygwin: cygheap: fix fork error after heap has grown 2023-04-18 10:06:53 +02:00
doc Cygwin: chattr: fix description of requirements for casesensitive directories 2023-04-03 22:41:07 +02:00
testsuite Cygwin: testsuite: Drop appending 'ntsec' to CYGWIN in cygrun wrapper 2023-01-13 17:03:58 +00:00
utils Cygwin: chattr: fix description of requirements for casesensitive directories 2023-04-03 22:41:07 +02:00
CONTRIBUTORS Cygwin: Add Ben Wijen to list of contributors 2021-01-18 12:01:19 +01:00
COPYING
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COPYING.LIB
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CYGWIN_LICENSE
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Makefile.am Cygwin: Conditionally build documentation 2021-12-17 22:28:16 +00:00
Makefile.am.common Cygwin: automake: change @INCLUDES@ to @AM_CPPFLAGS@ to avoid warnings 2021-04-29 11:28:14 +02:00
README
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acinclude.m4 Cygwin: Reorganize cygwin source dir 2022-08-05 12:02:11 +02:00
autogen.sh Cygwin: autogen.sh: Allow running from any directory 2021-05-06 10:56:20 +02:00
configure.ac Cygwin: dumper: also link with libzstd, as libbfd may require it 2023-02-14 14:37:32 +00:00

README 

THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESSED OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

Cygwin documentation is available on the net at https://cygwin.com
You might especially be interested in

https://cygwin.com/faq/faq.html#faq.programming.building-cygwin