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| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | sysdeps/x86/cpu-features.c | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index c0fbf75d23..c5fe2a8527 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2018-10-23 Adhemerval Zanella <adhemerval.zanella@linaro.org> + + [BZ #23709] + * sysdeps/x86/cpu-features.c (init_cpu_features): Set TSX bits + independently of other flags. + 2018-10-23 Florian Weimer <fweimer@redhat.com> * time/tst-mktime2.c (N_STRINGS): Remove. diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index f4e0f5a2ed..80b3054cf8 100644 --- a/sysdeps/x86/cpu-features.c +++ b/sysdeps/x86/cpu-features.c @@ -316,7 +316,13 @@ 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) |