diff options
Diffstat (limited to 'manual/README.morello')
| -rw-r--r-- | manual/README.morello | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/manual/README.morello b/manual/README.morello index 8a2be21..2db2072 100644 --- a/manual/README.morello +++ b/manual/README.morello @@ -29,7 +29,9 @@ Limitations of the morello port: - POSIX message queue async notify does not work (pointers passed via an fd). - Process shared robust mutexes don't work (pointers in shared memory). - Purecap pldd only supports purecap ABI processes (not lp64). -- malloc has significant overhead (locks and hash table lookup). +- malloc bounds narrowing has large overhead (locks and hash table lookup). +- malloc bounds narrowing can break code expecting page granularity protection. + Use GLIBC_TUNABLES=glibc.mem.cap_narrowing=0 env var as a workaround. - string functions are not optimized. -- Exectable stacks are not supported. +- Executable stacks are not supported. - Internal pointer protection and pointer mangling are disabled. |