diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2015-02-09 08:48:24 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2015-02-09 08:48:24 +0000 |
| commit | 4db5b6cd3fa687713600b08c3d7848a3da2a3df2 (patch) | |
| tree | ea3b7dd6986e73d8ecaaa67d61b00d21105c6ca6 /sys/arch/alpha | |
| parent | 44d8debf8b6924e184173bc7198af80b9dabb5cf (diff) | |
Do not even try to call uvm_grow() from sendsig. It will be invoked
automagically if copyout() of the signal frame faults.
Diffstat (limited to 'sys/arch/alpha')
| -rw-r--r-- | sys/arch/alpha/alpha/machdep.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/sys/arch/alpha/alpha/machdep.c b/sys/arch/alpha/alpha/machdep.c index 97845d63139..911f06d375d 100644 --- a/sys/arch/alpha/alpha/machdep.c +++ b/sys/arch/alpha/alpha/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.167 2014/12/10 15:29:52 mikeb Exp $ */ +/* $OpenBSD: machdep.c,v 1.168 2015/02/09 08:48:23 miod Exp $ */ /* $NetBSD: machdep.c,v 1.210 2000/06/01 17:12:38 thorpej Exp $ */ /*- @@ -1429,11 +1429,7 @@ sendsig(catcher, sig, mask, code, type, val) } /* - * Allocate and validate space for the signal handler - * context. Note that if the stack is in P0 space, the - * call to uvm_grow() is a nop, and the useracc() check - * will fail if the process has not already allocated - * the space with a `brk'. + * Allocate space for the signal handler context. */ if ((p->p_sigstk.ss_flags & SS_DISABLE) == 0 && !sigonstack(oldsp) && (psp->ps_sigonstack & sigmask(sig))) @@ -1441,8 +1437,6 @@ sendsig(catcher, sig, mask, code, type, val) p->p_sigstk.ss_size - rndfsize); else scp = (struct sigcontext *)(oldsp - rndfsize); - if ((u_long)scp <= USRSTACK - ptoa(p->p_vmspace->vm_ssize)) - (void)uvm_grow(p, (u_long)scp); #ifdef DEBUG if ((sigdebug & SDB_KSTACK) && p->p_pid == sigpid) printf("sendsig(%d): sig %d ssp %p usp %p\n", p->p_pid, |