diff options
Diffstat (limited to 'erts/emulator/beam/erl_threads.h')
| -rw-r--r-- | erts/emulator/beam/erl_threads.h | 62 |
1 files changed, 56 insertions, 6 deletions
diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h index bd1d35aa05..8c9cace0c5 100644 --- a/erts/emulator/beam/erl_threads.h +++ b/erts/emulator/beam/erl_threads.h @@ -36,6 +36,16 @@ #include "erl_lock_count.h" #include "erl_term.h" +#if defined(__GLIBC__) && (__GLIBC__ << 16) + __GLIBC_MINOR__ < (2 << 16) + 4 +/* + * pthread_mutex_destroy() may return EBUSY when it shouldn't :( We have + * only seen this bug in glibc versions before 2.4. Note that condition + * variables, rwmutexes, spinlocks, and rwspinlocks also may be effected by + * this bug since these implementations may use mutexes internally. + */ +# define ERTS_THR_HAVE_BUSY_DESTROY_BUG +#endif + #define ERTS_THR_MEMORY_BARRIER ETHR_MEMORY_BARRIER #ifdef ERTS_ENABLE_LOCK_COUNT @@ -554,8 +564,16 @@ erts_mtx_destroy(erts_mtx_t *mtx) erts_lcnt_destroy_lock(&mtx->lcnt); #endif res = ethr_mutex_destroy(&mtx->mtx); - if (res) + if (res != 0) { +#ifdef ERTS_THR_HAVE_BUSY_DESTROY_BUG + if (res == EBUSY) { + char *warn = "Ignoring busy mutex destroy. " + "Most likely a bug in pthread implementation."; + erts_send_warning_to_logger_str_nogl(warn); + } +#endif erts_thr_fatal_error(res, "destroy mutex"); + } #endif } @@ -650,8 +668,16 @@ erts_cnd_destroy(erts_cnd_t *cnd) { #ifdef USE_THREADS int res = ethr_cond_destroy(cnd); - if (res) + if (res != 0) { +#ifdef ERTS_THR_HAVE_BUSY_DESTROY_BUG + if (res == EBUSY) { + char *warn = "Ignoring busy cond destroy. " + "Most likely a bug in pthread implementation."; + erts_send_warning_to_logger_str_nogl(warn); + } +#endif erts_thr_fatal_error(res, "destroy condition variable"); + } #endif } @@ -777,8 +803,16 @@ erts_rwmtx_destroy(erts_rwmtx_t *rwmtx) erts_lcnt_destroy_lock(&rwmtx->lcnt); #endif res = ethr_rwmutex_destroy(&rwmtx->rwmtx); - if (res != 0) + if (res != 0) { +#ifdef ERTS_THR_HAVE_BUSY_DESTROY_BUG + if (res == EBUSY) { + char *warn = "Ignoring busy rwmutex destroy. " + "Most likely a bug in pthread implementation."; + erts_send_warning_to_logger_str_nogl(warn); + } +#endif erts_thr_fatal_error(res, "destroy rwmutex"); + } #endif } @@ -1455,8 +1489,16 @@ erts_spinlock_destroy(erts_spinlock_t *lock) erts_lcnt_destroy_lock(&lock->lcnt); #endif res = ethr_spinlock_destroy(&lock->slck); - if (res) - erts_thr_fatal_error(res, "destroy spinlock"); + if (res != 0) { +#ifdef ERTS_THR_HAVE_BUSY_DESTROY_BUG + if (res == EBUSY) { + char *warn = "Ignoring busy spinlock destroy. " + "Most likely a bug in pthread implementation."; + erts_send_warning_to_logger_str_nogl(warn); + } +#endif + erts_thr_fatal_error(res, "destroy rwlock"); + } #else (void)lock; #endif @@ -1565,8 +1607,16 @@ erts_rwlock_destroy(erts_rwlock_t *lock) erts_lcnt_destroy_lock(&lock->lcnt); #endif res = ethr_rwlock_destroy(&lock->rwlck); - if (res) + if (res != 0) { +#ifdef ERTS_THR_HAVE_BUSY_DESTROY_BUG + if (res == EBUSY) { + char *warn = "Ignoring busy rwlock destroy. " + "Most likely a bug in pthread implementation."; + erts_send_warning_to_logger_str_nogl(warn); + } +#endif erts_thr_fatal_error(res, "destroy rwlock"); + } #else (void)lock; #endif |