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NULL_LDT_BASE is used in !SMP kernels too and set_user_ldt() is not

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properly called. Address these two issues.

Reported by: Tinderbox
Tested by: le
Approved by: jeff (mentor)
Approved by: re
This commit is contained in:
Attilio Rao 2007-07-08 18:17:42 +00:00
parent 1df86a323d
commit ea11c140d0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=171309
1 changed files with 2 additions and 4 deletions
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6
sys/i386/i386/sys_machdep.c
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@ -64,13 +64,11 @@ __FBSDID("$FreeBSD$");
#define LD_PER_PAGE 512
#define NEW_MAX_LD(num) ((num + LD_PER_PAGE) & ~(LD_PER_PAGE-1))
#define SIZE_FROM_LARGEST_LD(num) (NEW_MAX_LD(num) << 3)
#ifdef SMP
#define NULL_LDT_BASE ((caddr_t)NULL)
#ifdef SMP
static void set_user_ldt_rv(struct vmspace *vmsp);
#endif
static int i386_set_ldt_data(struct thread *, int start, int num,
union descriptor *descs);
static int i386_ldt_grow(struct thread *td, int len);
@ -748,7 +746,7 @@ i386_ldt_grow(struct thread *td, int len)
smp_rendezvous(NULL, (void (*)(void *))set_user_ldt_rv,
NULL, td->td_proc->p_vmspace);
#else
set_user_ldt(td);
set_user_ldt(&td->td_proc->p_md);
mtx_unlock_spin(&dt_lock);
#endif
if (old_ldt_base != NULL_LDT_BASE) {