Commit 2391c4b5 authored Feb 16, 2006 by Andi Kleen Committed by Linus Torvalds Feb 17, 2006

[PATCH] x86_64: Don't call do_exit with interrupts disabled after IRET exception



This caused a sigreturn with bad argument on a preemptible kernel
to complain with

Debug: sleeping function called from invalid context at /home/lsrc/quilt/linux/include/linux/rwsem.h:43
in_atomic():0, irqs_disabled():1

Call Trace: {__might_sleep+190} {profile_task_exit+21}
       {__do_exit+34} {do_wait+0}

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent a62eaf15

arch/x86_64/kernel/entry.S

+1 −0

Original line number	Diff line number	Diff line
		@@ -554,6 +554,7 @@ iret_label:
		/* running with kernel gs */
		bad_iret:
		movq $-9999,%rdi /* better code? */
		sti
		jmp do_exit
		.previous