Ingo Molnar 86fa2f6067 ftrace: fix selftest locking ... Impact: fix self-test boot crash Self-test failure forgot to re-lock the BKL - crashing the next initcall: Testing tracer irqsoff: .. no entries found ..FAILED! initcall init_irqsoff_tracer+0x0/0x11 returned 0 after 3906 usecs calling init_mmio_trace+0x0/0xf @ 1 ------------[ cut here ]------------ Kernel BUG at c0c0a915 [verbose debug info unavailable] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC last sysfs file: Pid: 1, comm: swapper Not tainted (2.6.28-rc5-tip #53704) EIP: 0060:[<c0c0a915>] EFLAGS: 00010286 CPU: 1 EIP is at unlock_kernel+0x10/0x2b EAX: ffffffff EBX: 00000000 ECX: 00000000 EDX: f7030000 ESI: c12da19c EDI: 00000000 EBP: f7039f54 ESP: f7039f54 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Process swapper (pid: 1, ti=f7038000 task=f7030000 task.ti=f7038000) Stack: f7039f6c c0164d30 c013fed8 a7d8d7b4 00000000 00000000 f7039f74 c12fb78a f7039fd0 c0101132 c12fb77d 00000000 6f727200 6f632072 2d206564 c1002031 0000000f f7039fa2 f7039fb0 3531b171 00000000 00000000 0000002f c12ca480 Call Trace: [<c0164d30>] ? register_tracer+0x66/0x13f [<c013fed8>] ? ktime_get+0x19/0x1b [<c12fb78a>] ? init_mmio_trace+0xd/0xf [<c0101132>] ? do_one_initcall+0x4a/0x111 [<c12fb77d>] ? init_mmio_trace+0x0/0xf [<c015c7e6>] ? init_irq_proc+0x46/0x59 [<c12e851d>] ? kernel_init+0x104/0x152 [<c12e8419>] ? kernel_init+0x0/0x152 [<c01038b7>] ? kernel_thread_helper+0x7/0x10 Code: 58 14 43 75 0a b8 00 9b 2d c1 e8 51 43 7a ff 64 a1 00 a0 37 c1 89 58 14 5b 5d c3 55 64 8b 15 00 a0 37 c1 83 7a 14 00 89 e5 79 04 <0f> 0b eb fe 8b 42 14 48 85 c0 89 42 14 79 0a b8 00 9b 2d c1 e8 EIP: [<c0c0a915>] unlock_kernel+0x10/0x2b SS:ESP 0068:f7039f54 ---[ end trace a7919e7f17c0a725 ]--- Kernel panic - not syncing: Attempted to kill init! So clean up the flow a bit. Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-11-19 10:00:15 +01:00
..
ftrace.c	ftrace: make filtered functions effective on setting	2008-11-16 07:37:46 +01:00
Kconfig	trace: rename unlikely profiler to branch profiler	2008-11-12 22:27:58 +01:00
Makefile	ftrace: rename trace_unlikely.c file	2008-11-12 22:28:40 +01:00
ring_buffer.c	Merge branches 'tracing/fastboot', 'tracing/ftrace' and 'tracing/urgent' into tracing/core	2008-11-16 07:28:46 +01:00
trace_boot.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_branch.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_functions_return.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_functions.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_irqsoff.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_mmiotrace.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_nop.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_sched_switch.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_sched_wakeup.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_selftest_dynamic.c	ftrace: fix dynamic ftrace selftest	2008-05-23 21:13:23 +02:00
trace_selftest.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace_stack.c	ftrace: insert in the ftrace_preempt_disable()/enable() functions	2008-11-04 10:09:49 +01:00
trace_sysprof.c	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00
trace.c	ftrace: fix selftest locking	2008-11-19 10:00:15 +01:00
trace.h	tracing/ftrace: change the type of the init() callback	2008-11-16 07:55:23 +01:00