James Hogan d71f290b4e metag: Reduce maximum stack size to 256MB ... Specify the maximum stack size for arches where the stack grows upward (parisc and metag) in asm/processor.h rather than hard coding in fs/exec.c so that metag can specify a smaller value of 256MB rather than 1GB. This fixes a BUG on metag if the RLIMIT_STACK hard limit is increased beyond a safe value by root. E.g. when starting a process after running "ulimit -H -s unlimited" it will then attempt to use a stack size of the maximum 1GB which is far too big for metag's limited user virtual address space (stack_top is usually 0x3ffff000): BUG: failure at fs/exec.c:589/shift_arg_pages()! Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: linux-parisc@vger.kernel.org Cc: linux-metag@vger.kernel.org Cc: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # only needed for >= v3.9 (arch/metag)		2014-05-15 00:00:35 +01:00
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asm	metag: Reduce maximum stack size to 256MB	2014-05-15 00:00:35 +01:00
uapi/asm	parisc: Use generic uapi/asm/resource.h file	2014-05-01 19:29:26 +02:00