K 10
svn:author
V 6
jasone
K 8
svn:date
V 27
1999-07-05T00:35:19.000000Z
K 7
svn:log
V 575
Use growable stacks for thread stacks that are the default stack size.

Cache discarded default thread stacks for use in subsequent thread creations.

Create a red zone at the end of each stack (including the initial thread
stack), with the hope of causing a segfault if a stack overflows.

To activate these modifications, add -D_PTHREAD_GSTACK to CFLAGS in
src/lib/libc_r/Makefile.  Since the modifications depend on the VM_STACK
kernel option, I'm not sure how to safely use growable stacks by default.

Testing, as well as algorithmic and stylistic comments are welcome.

END