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| author | nwhitehorn <nwhitehorn@FreeBSD.org> | 2011-08-15 13:33:14 +0000 |
|---|---|---|
| committer | nwhitehorn <nwhitehorn@FreeBSD.org> | 2011-08-15 13:33:14 +0000 |
| commit | 80a6b3c99881a709156baf30c39dbe4114cbcac3 (patch) | |
| tree | 3c37183bec729d6b0ed08308746ffe08ec7ed43e /sys/conf | |
| parent | eb0477f78d680e21ad26426379519418dbab1708 (diff) | |
| download | FreeBSD-src-80a6b3c99881a709156baf30c39dbe4114cbcac3.zip FreeBSD-src-80a6b3c99881a709156baf30c39dbe4114cbcac3.tar.gz | |
Use a maximum of -O on PowerPC kernels instead of -O2 to prevent a rare
bug that could cause intermittent memory corruption on PowerPC SMP
systems using non-debug kernels. This is a temporary change until the
real problem is fixed.
Approved by: re (kib)
Diffstat (limited to 'sys/conf')
| -rw-r--r-- | sys/conf/kern.pre.mk | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk index e9aa6e2..2320b89 100644 --- a/sys/conf/kern.pre.mk +++ b/sys/conf/kern.pre.mk @@ -27,8 +27,12 @@ SIZE?= size _MINUS_O= -O CTFFLAGS+= -g .else +.if ${MACHINE_CPUARCH} == "powerpc" +_MINUS_O= -O # gcc miscompiles some code at -O2 +.else _MINUS_O= -O2 .endif +.endif .if ${MACHINE_CPUARCH} == "amd64" COPTFLAGS?=-O2 -frename-registers -pipe .else |
