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| author | Erlang/OTP <[email protected]> | 2016-04-01 20:18:55 +0200 |
|---|---|---|
| committer | Erlang/OTP <[email protected]> | 2016-04-01 20:18:55 +0200 |
| commit | ce7658b590ccbef73d9b1faf2dcad35dc1edfb91 (patch) | |
| tree | 5d97ff0f487b4d8ebd535643d51d913920baa73f | |
| parent | 026f04a07e396603943c373f6eb541c1ed4500af (diff) | |
| parent | c048886458ce68280ba32647a93a04902c929988 (diff) | |
| download | otp-ce7658b590ccbef73d9b1faf2dcad35dc1edfb91.tar.gz otp-ce7658b590ccbef73d9b1faf2dcad35dc1edfb91.tar.bz2 otp-ce7658b590ccbef73d9b1faf2dcad35dc1edfb91.zip | |
Merge branch 'sverker/erts/trap_exit-race/OTP-13452' into maint-18
* sverker/erts/trap_exit-race/OTP-13452:
erts: Fix race for process_flag(trap_exit,true)
| -rw-r--r-- | erts/emulator/beam/bif.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c index 66c2853534..095df36a43 100644 --- a/erts/emulator/beam/bif.c +++ b/erts/emulator/beam/bif.c @@ -1605,14 +1605,17 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2) * true. For more info, see implementation of * erts_send_exit_signal(). */ + erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCKS_XSIG_SEND); if (trap_exit) state = erts_smp_atomic32_read_bor_mb(&BIF_P->state, ERTS_PSFLG_TRAP_EXIT); else state = erts_smp_atomic32_read_band_mb(&BIF_P->state, ~ERTS_PSFLG_TRAP_EXIT); + erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCKS_XSIG_SEND); + #ifdef ERTS_SMP - if (ERTS_PROC_PENDING_EXIT(BIF_P)) { + if (state & ERTS_PSFLG_PENDING_EXIT) { erts_handle_pending_exit(BIF_P, ERTS_PROC_LOCK_MAIN); ERTS_BIF_EXITED(BIF_P); } |