diff options
Diffstat (limited to 'erts/emulator/sys/unix/sys.c')
| -rw-r--r-- | erts/emulator/sys/unix/sys.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c index 61f9f6a59a..865cb50a56 100644 --- a/erts/emulator/sys/unix/sys.c +++ b/erts/emulator/sys/unix/sys.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1996-2013. All Rights Reserved. + * Copyright Ericsson AB 1996-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -409,8 +409,10 @@ void sys_tty_reset(int exit_code) #ifdef __tile__ /* Direct malloc to spread memory around the caches of multiple tiles. */ #include <malloc.h> +#if defined(MALLOC_USE_HASH) MALLOC_USE_HASH(1); #endif +#endif #ifdef USE_THREADS @@ -547,6 +549,25 @@ erts_sys_pre_init(void) #endif #endif /* USE_THREADS */ erts_smp_atomic_init_nob(&sys_misc_mem_sz, 0); + + { + /* + * Unfortunately we depend on fd 0,1,2 in the old shell code. + * So if for some reason we do not have those open when we start + * we have to open them here. Not doing this can cause the emulator + * to deadlock when reaping the fd_driver ports :( + */ + int fd; + /* Make sure fd 0 is open */ + if ((fd = open("/dev/null", O_RDONLY)) != 0) + close(fd); + /* Make sure fds 1 and 2 are open */ + while (fd < 3) { + fd = open("/dev/null", O_WRONLY); + } + close(fd); + } + } void @@ -2540,7 +2561,7 @@ void *erts_sys_aligned_alloc(UWord alignment, UWord size) #ifdef HAVE_POSIX_MEMALIGN void *ptr = NULL; int error; - ASSERT(alignment && (alignment & ~alignment) == 0); /* power of 2 */ + ASSERT(alignment && (alignment & (alignment-1)) == 0); /* power of 2 */ error = posix_memalign(&ptr, (size_t) alignment, (size_t) size); #if HAVE_ERTS_MSEG if (error || !ptr) { @@ -2563,7 +2584,7 @@ void *erts_sys_aligned_alloc(UWord alignment, UWord size) void erts_sys_aligned_free(UWord alignment, void *ptr) { - ASSERT(alignment && (alignment & ~alignment) == 0); /* power of 2 */ + ASSERT(alignment && (alignment & (alignment-1)) == 0); /* power of 2 */ free(ptr); } |