diff options
| -rw-r--r-- | sys/amd64/amd64/vm_machdep.c | 6 | ||||
| -rw-r--r-- | sys/i386/i386/vm_machdep.c | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/sys/amd64/amd64/vm_machdep.c b/sys/amd64/amd64/vm_machdep.c index f58bdf3..bdb189f 100644 --- a/sys/amd64/amd64/vm_machdep.c +++ b/sys/amd64/amd64/vm_machdep.c @@ -247,9 +247,13 @@ cpu_exit(struct thread *td) { struct mdproc *mdp; + /* Reset pc->pcb_gs and %gs before possibly invalidating it. */ mdp = &td->td_proc->p_md; - if (mdp->md_ldt) + if (mdp->md_ldt) { + td->td_pcb->pcb_gs = _udatasel; + load_gs(_udatasel); user_ldt_free(td); + } reset_dbregs(); } diff --git a/sys/i386/i386/vm_machdep.c b/sys/i386/i386/vm_machdep.c index f58bdf3..bdb189f 100644 --- a/sys/i386/i386/vm_machdep.c +++ b/sys/i386/i386/vm_machdep.c @@ -247,9 +247,13 @@ cpu_exit(struct thread *td) { struct mdproc *mdp; + /* Reset pc->pcb_gs and %gs before possibly invalidating it. */ mdp = &td->td_proc->p_md; - if (mdp->md_ldt) + if (mdp->md_ldt) { + td->td_pcb->pcb_gs = _udatasel; + load_gs(_udatasel); user_ldt_free(td); + } reset_dbregs(); } |
