[PATCH] sched: tasks cannot run on cpus onlined after boot
commitcba93a2bdb434c0e365e3a7effc2d7a7f34d0cc4
authorNathan Lynch <ntl@pobox.com>
Thu, 11 Jan 2007 07:15:28 +0000 (10 23:15 -0800)
committerChris Wright <chrisw@sous-sol.org>
Mon, 5 Feb 2007 16:31:40 +0000 (5 08:31 -0800)
treedb785da35e4451e33ab408a809b294a9bf80070a
parent3060e6145db41e6fb3944ee42376977fed761c27
[PATCH] sched: tasks cannot run on cpus onlined after boot

Commit 5c1e176781f43bc902a51e5832f789756bff911b ("sched: force /sbin/init
off isolated cpus") sets init's cpus_allowed to a subset of cpu_online_map
at boot time, which means that tasks won't be scheduled on cpus that are
added to the system later.

Make init's cpus_allowed a subset of cpu_possible_map instead.  This should
still preserve the behavior that Nick's change intended.

Thanks to Giuliano Pochini for reporting this and testing the fix:

http://ozlabs.org/pipermail/linuxppc-dev/2006-December/029397.html

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
kernel/sched.c