On Fri, Aug 10, 2012 at 02:20:47AM -0600, Fengguang Wu wrote:

Hi Josef,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git extent-history
head:   7759db1867be3d642b2411455902ed22dd6d1381
commit: 7759db1867be3d642b2411455902ed22dd6d1381 [20/20] Btrfs: extent history debugging patch
config: i386-randconfig-k662 (attached as .config)

This is just a debug patch that's just up so other people can use it in the
future.  But looks like we just need a CONFIG_STACKTRACE check so I've added
that and hopefully that fixed it.  Thanks,

Josef