* Ingo Molnar wrote: > Your other patches look good and i've applied them to > tip/tracing/fastboot: > > 3981ce9: tracing/fastboot: use sched switch tracer from boot tracer > 563582a: tracing/ftrace: remove unused code in sched_switch tracer > d25b1ce: tracing/ftrace: fix a race condition in sched_switch tracer hm, there's a new build failure: kernel/built-in.o: In function `boot_trace_init': trace_boot.c:(.text+0x5ee38): undefined reference to `sched_switch_trace' kernel/built-in.o: In function `disable_boot_trace': (.text+0x5eee1): undefined reference to `tracing_stop_cmdline_record' kernel/built-in.o: In function `enable_boot_trace': (.text+0x5ef11): undefined reference to `tracing_start_cmdline_record' this revert solves the problem: commit b80bebdc1718c02947468df227b7f4414d8dcce8 Author: Ingo Molnar Date: Fri Oct 10 21:44:24 2008 +0200 Revert "tracing/fastboot: use sched switch tracer from boot tracer" This reverts commit 124cecce4145c590ae391fe12962653be8a05658. Config attached. Ingo