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Laurent MEYER d09042da72 [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 
- When setting a sighandler using sigaction() call, if the flag
  SA_ONSTACK is set and no alternate stack is provided via sigaltstack(),
  the kernel still try to install the alternate stack.  This behavior is
  the opposite of the one which is documented in Single Unix Specifications
  V3.

- Also when setting an alternate stack using sigaltstack() with the flag
  SS_DISABLE, the kernel try to install the alternate stack on signal
  delivery.

These two use cases makes the process crash at signal delivery.

Signed-off-by: Laurent Meyer <meyerlau@fr.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:43:05 -07:00
..
alpha [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00
arm [PATCH] leds: Amstrad Delta LED support 2006-06-23 07:43:05 -07:00
arm26
cris
frv [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00
h8300 [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00
i386 [PATCH] x86/powerpc make hardirq_ctx and softirq_ctx __read_mostly 2006-06-23 07:43:05 -07:00
ia64
m32r
m68k [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00
m68knommu [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00
mips
parisc [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00
powerpc [PATCH] x86/powerpc make hardirq_ctx and softirq_ctx __read_mostly 2006-06-23 07:43:05 -07:00
ppc
s390
sh
sh64 [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00
sparc
sparc64
um [PATCH] clean up default value of SYSCALL_DEBUG 2006-06-23 07:43:03 -07:00
v850 [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00
x86_64
xtensa [PATCH] fix incorrect SA_ONSTACK behaviour for 64-bit processes 2006-06-23 07:43:05 -07:00