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| author | Erlang/OTP <[email protected]> | 2016-04-01 20:18:52 +0200 |
|---|---|---|
| committer | Erlang/OTP <[email protected]> | 2016-04-01 20:18:52 +0200 |
| commit | 6db3f232f2ca8a77537a241cdd3e0f289610e064 (patch) | |
| tree | a629cfbc6f3abbcdbd9f12040b52bfdb3ec58a85 | |
| parent | 0634218b601614802563927c8f9b6f51a463b746 (diff) | |
| parent | 455cbcf2230715b37da14573cb9ba60a68c24a26 (diff) | |
| download | otp-6db3f232f2ca8a77537a241cdd3e0f289610e064.tar.gz otp-6db3f232f2ca8a77537a241cdd3e0f289610e064.tar.bz2 otp-6db3f232f2ca8a77537a241cdd3e0f289610e064.zip | |
Merge branch 'rickard/port-sig-dropped-fix/OTP-13424' into maint-18
* rickard/port-sig-dropped-fix/OTP-13424:
Fix implementation of dropped signal to port
| -rw-r--r-- | erts/emulator/beam/io.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index 81a05a6b87..fbcb0c31fc 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -1529,8 +1529,19 @@ erts_schedule_proc2port_signal(Process *c_p, erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN); if (sched_res != 0) { - if (refp) + if (refp) { + /* + * We need to restore the message queue save + * pointer to the beginning of the message queue + * since the caller now wont wait for a message + * containing the reference created above... + */ + ASSERT(c_p); + erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE); + JOIN_MESSAGE(c_p); + erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE); *refp = NIL; + } return ERTS_PORT_OP_DROPPED; } return ERTS_PORT_OP_SCHEDULED; |