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| author | Andrew Morrow <acm@mongodb.com> | 2021-02-22 15:44:52 -0500 |
|---|---|---|
| committer | Evergreen Agent <no-reply@evergreen.mongodb.com> | 2021-02-26 17:42:26 +0000 |
| commit | a64233e90499f6e3d94c21fbe58c91e7bd744ba1 (patch) | |
| tree | 2bb62c2e49f69159e57bd7f1602efeb23af3e4bc | |
| parent | 778369e499633860cca4a224d919858805d2695a (diff) | |
| download | mongo-a64233e90499f6e3d94c21fbe58c91e7bd744ba1.tar.gz | |
SERVER-54685 Replace the ARM yield instruction with isb
(cherry picked from commit 6979525674af67405984c58585766dd4d0c3f2a8)
(cherry picked from commit 82a03739b80bf1873ec620165a1d8cfea2edd46f)
| -rw-r--r-- | src/mongo/platform/pause.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mongo/platform/pause.h b/src/mongo/platform/pause.h index 6547658346e..0b0a6fa2240 100644 --- a/src/mongo/platform/pause.h +++ b/src/mongo/platform/pause.h @@ -58,7 +58,8 @@ #elif defined(__aarch64__) || defined(__arm__) -#define MONGO_YIELD_CORE_FOR_SMT() __asm__ volatile("yield" ::: "memory") +/* See https://jira.mongodb.org/browse/WT-6872 for details on using `isb` instead of `yield`. */ +#define MONGO_YIELD_CORE_FOR_SMT() __asm__ volatile("isb" ::: "memory") #elif defined(__s390x__) |