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omit CLONE_PARENT flag to clone in pthread_create 

CLONE_PARENT is not necessary (CLONE_THREAD provides all the useful
parts of it) and Linux treats CLONE_PARENT as an error in certain
situations, without noticing that it would be a no-op due to
CLONE_THREAD. this error case prevents, for example, use of a
multi-threaded init process and certain usages with containers.
This commit is contained in:
Rich Felker 2013-09-16 10:56:01 -04:00
parent f68a3468d4
commit 271c211944
1 changed files with 1 additions and 1 deletions
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2
src/thread/pthread_create.c
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@ -130,7 +130,7 @@ int pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict attrp
struct pthread *self = pthread_self(), *new;
unsigned char *map = 0, *stack = 0, *tsd = 0, *stack_limit;
unsigned flags = CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND
| CLONE_PARENT | CLONE_THREAD | CLONE_SYSVSEM | CLONE_SETTLS
| CLONE_THREAD | CLONE_SYSVSEM | CLONE_SETTLS
| CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID | CLONE_DETACHED;
int do_sched = 0;
pthread_attr_t attr = {0};