diff options
| author | Brian Behlendorf <[email protected]> | 2013-01-29 10:35:02 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2013-01-29 10:58:20 -0800 |
| commit | 79c6e4c44538414340a43c065f850d11cb0203af (patch) | |
| tree | 70dcd0d08eea41a74954534c519f42b165f32f83 /lib | |
| parent | 9759c60f1a1503e48dc5c45a209c3edd5758319f (diff) | |
Remove NPTL_GUARD_WITHIN_STACK
Commit 4b2f65b253952c5103311cc8bb4b8cdc6836fd7e increased the user
space stack by 4x to resolve certain stack overflows. As such it
no longer makes sense to worry about a single extra page which
might or might not be part of the process stack. There is now
ample headroom for normal usage.
By eliminating this configure check we are also resolving the
following segfault which intentionally occurs at configure time
and may be logged in dmesg.
conftest[22156]: segfault at 7fbf18a47e48 ip 00000000004007fe
sp 00007fbf18a4be50 error 6 in conftest[400000+1000]
Signed-off-by: Brian Behlendorf <[email protected]>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libzpool/kernel.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/libzpool/kernel.c b/lib/libzpool/kernel.c index 0e10c8951..c1ce82d1b 100644 --- a/lib/libzpool/kernel.c +++ b/lib/libzpool/kernel.c @@ -175,8 +175,7 @@ zk_thread_create(caddr_t stk, size_t stksize, thread_func_t func, void *arg, * on Linux. */ - stack = PTHREAD_STACK_MIN + MAX(stksize, STACK_SIZE) * 4 + - EXTRA_GUARD_BYTES; + stack = PTHREAD_STACK_MIN + MAX(stksize, STACK_SIZE) * 4; VERIFY3S(pthread_attr_init(&attr), ==, 0); VERIFY3S(pthread_attr_setstacksize(&attr, stack), ==, 0); |