On Sat, 26 Mar 2011, Ingo Molnar wrote: > > Subject: per_cpu: Fixup cmpxchg_double for !SMP > > > > cmpxchg_double should only be provided for SMP. In the UP case > > the GS register is not defined and the function will fail. > > > > Signed-off-by: Christoph Lameter <cl@xxxxxxxxx> > > I.e. the bug got introduced by: > > | commit b9ec40af0e18fb7d02106be148036c2ea490fdf9 > | Author: Christoph Lameter <cl@xxxxxxxxx> > | Date: Mon Feb 28 11:02:24 2011 +0100 > | > | percpu, x86: Add arch-specific this_cpu_cmpxchg_double() support > > and then the lockless allocator made use of it, right? Correct. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>