diff options
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | NEWS | 1 | ||||
| -rw-r--r-- | sysdeps/x86/cpu-features.c | 6 |
3 files changed, 13 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 51a8f488d9..d558df58af 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. + 2018-10-30 Florian Weimer <fweimer@redhat.com> * stdlib/tst-strtod-overflow.c (do_test): Switch to diff --git a/NEWS b/NEWS index 79b028008d..f3004915f2 100644 --- a/NEWS +++ b/NEWS @@ -19,6 +19,7 @@ The following bugs are resolved with this release: [23579] libc: Errors misreported in preadv2 [23606] Missing ENDBR32 in sysdeps/i386/start.S [23679] gethostid: Missing NULL check for gethostbyname_r result + [23709] Fix CPU string flags for Haswell-type CPUs [23717] Fix stack overflow in stdlib/tst-setcontext9 [23821] si_band in siginfo_t has wrong type long int on sparc64 [23822] ia64 static libm.a is missing exp2f, log2f and powf symbols diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index ea0b64fdb9..4695ac80d4 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) |