diff options
Diffstat (limited to 'sysdeps/x86/cpu-features.c')
| -rw-r--r-- | sysdeps/x86/cpu-features.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index a66d468b20..b3a5f4b26a 100644 --- a/sysdeps/x86/cpu-features.c +++ b/sysdeps/x86/cpu-features.c @@ -297,7 +297,13 @@ init_cpu_features (struct cpu_features *cpu_features) | bit_arch_Fast_Unaligned_Copy | bit_arch_Prefer_PMINUB_for_stringop); break; + } + /* Disable TSX on some Haswell processors to avoid TSX on kernels that + weren't updated with the latest microcode package (which disables + broken feature by default). */ + switch (model) + { case 0x3f: /* Xeon E7 v3 with stepping >= 4 has working TSX. */ if (stepping >= 4) |