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authorLaurent MEYER <meyerlau@fr.ibm.com>2006-06-23 02:05:36 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:43:05 -0700
commitd09042da7284a86ffbdd18695f517a71514ed598 (patch)
tree09e9a3de71a4a4cf6c8f8cb0c40ec0a916e01cae /README
parent[PATCH] binflt_elf: remove more casts (diff)
downloadlinux-dev-d09042da7284a86ffbdd18695f517a71514ed598.tar.xz
linux-dev-d09042da7284a86ffbdd18695f517a71514ed598.zip
[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>
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