we can easily hold PAGE_VEC (and more in places) page locks. Signed-off-by: Peter Zijlstra --- include/linux/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6/include/linux/sched.h =================================================================== --- linux-2.6.orig/include/linux/sched.h +++ linux-2.6/include/linux/sched.h @@ -1246,7 +1246,7 @@ struct task_struct { int softirq_context; #endif #ifdef CONFIG_LOCKDEP -# define MAX_LOCK_DEPTH 30UL +# define MAX_LOCK_DEPTH 48UL u64 curr_chain_key; int lockdep_depth; struct held_lock held_locks[MAX_LOCK_DEPTH]; --