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| author | Lukas Larsson <[email protected]> | 2019-02-12 16:46:33 +0100 |
|---|---|---|
| committer | Lukas Larsson <[email protected]> | 2019-02-22 11:12:54 +0100 |
| commit | bf7c722bd3b30e04a56c2d369fd9f5501a8316d0 (patch) | |
| tree | 64bc891786d71282e653224153799dc03eff28d8 /erts/emulator/beam/utils.c | |
| parent | c0c6f6b137e91f626157389733d1510c192002cf (diff) | |
| download | otp-bf7c722bd3b30e04a56c2d369fd9f5501a8316d0.tar.gz otp-bf7c722bd3b30e04a56c2d369fd9f5501a8316d0.tar.bz2 otp-bf7c722bd3b30e04a56c2d369fd9f5501a8316d0.zip | |
erts: Fix so that externals with creation 0 compare equal to all
The special creation of 0 is used by internally created externals,
such as when list_to_pid is called. This creation should compare
equal to all externals creations of that external. If it does not
we can end up in very strange scenarios. For instance:
> P = spawn(OtherNode, fun() -> die end).
<8303.60.0>
> link(<8303.60.0>).
true
> flush().
ok
OTP-15613
Diffstat (limited to 'erts/emulator/beam/utils.c')
| -rw-r--r-- | erts/emulator/beam/utils.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c index 3fa09e39f2..36a492f00d 100644 --- a/erts/emulator/beam/utils.c +++ b/erts/emulator/beam/utils.c @@ -2701,7 +2701,8 @@ Sint erts_cmp_compound(Eterm a, Eterm b, int exact, int eq_only) if((AN)->sysname != (BN)->sysname) \ RETURN_NEQ(erts_cmp_atoms((AN)->sysname, (BN)->sysname)); \ ASSERT((AN)->creation != (BN)->creation); \ - RETURN_NEQ(((AN)->creation < (BN)->creation) ? -1 : 1); \ + if ((AN)->creation != 0 && (BN)->creation != 0) \ + RETURN_NEQ(((AN)->creation < (BN)->creation) ? -1 : 1); \ } \ } while (0) |