[Cced to <bug-hurd@gnu.org> as it's a GNU Mach bug.]
Hello!
On Wed, Aug 29, 2007 at 04:50:20PM +0200, Samuel Thibault wrote:
> Michael Banck, le Wed 29 Aug 2007 16:13:20 +0200, a écrit :
> > eax 0x107502f8
>
> This is the culprit: fxsave needs the buffer to be 16 bytes-aligned. It
fnsave, you mean, I guess.
> looks like there is a bug somewhere in the alignment support of
> zalloc().
Would this be a correct patch? Michael, how is this reproducible (if at
all?), so that we could check?
#v+
Index: i386/i386/fpu.c
===================================================================
RCS file: /cvsroot/hurd/gnumach/i386/i386/fpu.c,v
retrieving revision 1.2.4.11
diff -u -p -r1.2.4.11 fpu.c
--- i386/i386/fpu.c 8 May 2007 20:48:13 -0000 1.2.4.11
+++ i386/i386/fpu.c 29 Aug 2007 19:37:36 -0000
@@ -152,7 +152,7 @@ init_fpu()
void
fpu_module_init()
{
- ifps_zone = zinit(sizeof(struct i386_fpsave_state), 0,
+ ifps_zone = zinit(sizeof(struct i386_fpsave_state), 16,
THREAD_MAX * sizeof(struct i386_fpsave_state),
THREAD_CHUNK * sizeof(struct i386_fpsave_state),
0, "i386 fpsave state");
#v-
Regards,
Thomas
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