Peter Zijlstra 572a42d1f4 init, sched: Fix race between init and kthreadd ... commit b433c3d454 upstream. Ilya reported that on a very slow machine he could reliably reproduce a race between forking init and kthreadd. We first fork init so that it obtains pid-1, however since the scheduler is already fully running at this point it can preempt and run the init thread before we spawn and set kthreadd_task. The init thread can then attempt spawning kthreads without kthreadd being present which results in an OOPS. Reported-by: Ilya Loginov <isloginov@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <1277736661.3561.110.camel@laptop> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2011-05-09 15:55:36 -07:00
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calibrate.c	fix jiffy calculations in calibrate_delay_direct to handle overflow	2011-02-17 15:37:04 -08:00
do_mounts.c	Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev	2009-09-15 09:50:49 -07:00
do_mounts.h	md: move lots of #include lines out of .h files and into .c	2009-03-31 14:33:13 +11:00
do_mounts_initrd.c	Freezer: Fix s2disk resume from initrd	2007-11-20 22:22:42 -05:00
do_mounts_md.c	md: move lots of #include lines out of .h files and into .c	2009-03-31 14:33:13 +11:00
do_mounts_rd.c	init: make initrd/initramfs decompression failure a KERN_EMERG event	2009-01-14 11:28:35 -08:00
initramfs.c	initramfs: handle unrecognised decompressor when unpacking	2010-05-12 14:57:10 -07:00
Kconfig	slub: fix panic with DISCONTIGMEM	2011-05-09 15:54:51 -07:00
main.c	init, sched: Fix race between init and kthreadd	2011-05-09 15:55:36 -07:00
Makefile	kbuild: fix make V=1	2008-02-11 17:43:54 +01:00
noinitramfs.c	[PATCH] disable init/initramfs.c	2007-02-11 10:51:25 -08:00
version.c	init/version.c: define version_string only if CONFIG_KALLSYMS is not defined	2008-07-25 10:53:29 -07:00