+GENERAL INFORMATION
+
Welcome to SBCL.
To find out more about who created the system, see the "CREDITS" file.
system, please send mail to one of the mailing lists:
sbcl-help@lists.sourceforge.net
sbcl-devel@lists.sourceforge.net
+
+
+SYSTEM-SPECIFIC HINTS
+
+for NetBSD:
+ NetBSD 2.0 and above are required because of the lack of needed
+ signal APIs in NetBSD 1.6 and earlier.
+
+for OpenBSD:
+ OpenBSD 3.0 has stricter ulimit values, and/or enforces them more
+ strictly, than its predecessors. Therefore SBCL's initial mmap()
+ won't work unless you increase the limit on the data segment from
+ the OpenBSD defaults, e.g. with
+ ulimit -S -d 1000000
+ before you run SBCL. Otherwise SBCL fails with a message like
+ "ensure_space: failed to validate xxxxxxx bytes at yyyyy". (SBCL
+ is just allocating this huge address space, not actually using this
+ huge memory at this point. OpenBSD <3.0 had no problem with this,
+ but OpenBSD 3.0 is less hospitable.)
+
+for Darwin:
+ PURIFY (which can be used alone but is also used by the system when
+ saving a new core) uses more stack than the default limit on MacOS
+ X.2. Therefore, in order to get PURIFY to work reliably, you need
+ to increase the limit, with e.g.
+ limit stack 8192 # for the default shell, tcsh
+ ulimit -s 8192 # for bash
+ before running SBCL. This is also necessary when building the system
+ from sources, as part of the build process involves saving a new core.