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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-17 13:26:50 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-17 13:26:50 +0200 |
| commit | 8e9509c827a28e2f365c203c04224f9e9dd1b63a (patch) | |
| tree | 8b34aafece4659828cc8edf77a2eeac696671601 /arch | |
| parent | a3cf859321486f69506326146ab3e2fd15c05c3f (diff) | |
| download | linux-8e9509c827a28e2f365c203c04224f9e9dd1b63a.tar.bz2 | |
ftrace: fix merge buglet
-tip testing found a bootup hang here:
initcall anon_inode_init+0x0/0x130 returned 0 after 0 msecs
calling acpi_event_init+0x0/0x57
the bootup should have continued with:
initcall acpi_event_init+0x0/0x57 returned 0 after 45 msecs
but it hung hard there instead.
bisection led to this commit:
| commit 5806b81ac1c0c52665b91723fd4146a4f86e386b
| Merge: d14c8a6... 6712e29...
| Author: Ingo Molnar <mingo@elte.hu>
| Date: Mon Jul 14 16:11:52 2008 +0200
| Merge branch 'auto-ftrace-next' into tracing/for-linus
turns out that i made this mistake in the merge:
ifdef CONFIG_FTRACE
# Do not profile debug utilities
CFLAGS_REMOVE_tsc_64.o = -pg
CFLAGS_REMOVE_tsc_32.o = -pg
those two files got unified meanwhile - so the dont-profile annotation
got lost. The proper rule is:
CFLAGS_REMOVE_tsc.o = -pg
i guess this could have been caught sooner if the CFLAGS_REMOVE* kbuild
rule aborted the build if it met a target that does not exist anymore?
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/Makefile | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 5112c84f5421..da140611bb57 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -8,8 +8,7 @@ CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE) ifdef CONFIG_FTRACE # Do not profile debug utilities -CFLAGS_REMOVE_tsc_64.o = -pg -CFLAGS_REMOVE_tsc_32.o = -pg +CFLAGS_REMOVE_tsc.o = -pg CFLAGS_REMOVE_rtc.o = -pg endif |