diff options
| author | jlemon <jlemon@FreeBSD.org> | 1998-10-01 20:45:28 +0000 |
|---|---|---|
| committer | jlemon <jlemon@FreeBSD.org> | 1998-10-01 20:45:28 +0000 |
| commit | 9fb6dbbc14017286091a32441738682e3922cb53 (patch) | |
| tree | daf704a9cb2713f6f8bce6e4ec4a4bfaacdbd4cc | |
| parent | d7482b56212d485dff683787a7390c166de663e7 (diff) | |
| download | FreeBSD-src-9fb6dbbc14017286091a32441738682e3922cb53.zip FreeBSD-src-9fb6dbbc14017286091a32441738682e3922cb53.tar.gz | |
Don't try to save FP state if npxproc is null.
Submitted by: Tor Egge
| -rw-r--r-- | sys/i386/i386/vm86bios.s | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/i386/i386/vm86bios.s b/sys/i386/i386/vm86bios.s index 8607a46..ce53bcf 100644 --- a/sys/i386/i386/vm86bios.s +++ b/sys/i386/i386/vm86bios.s @@ -23,7 +23,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: vm86bios.s,v 1.5 1998/09/28 03:26:22 tegge Exp $ + * $Id: vm86bios.s,v 1.6 1998/09/29 18:01:18 jlemon Exp $ */ #include "opt_vm86.h" @@ -75,6 +75,8 @@ ENTRY(vm86_bioscall) movl _curproc,%ecx cmpl %ecx,_npxproc /* do we need to save fp? */ jne 1f + testl %ecx,%ecx + je 1f /* no curproc/npxproc */ pushl %edx movl P_ADDR(%ecx),%ecx addl $PCB_SAVEFPU,%ecx |
