diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2005-08-24 01:02:04 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-08-24 01:02:04 -0400 |
| commit | b2382b363df828f25e35ed8b70a3da33b29b2a64 (patch) | |
| tree | 23aa2e70ba4650390c9281b3696172313bdb0f38 /arch/i386/kernel/traps.c | |
| parent | 1b5cca3a88b7682d538d129c25f0e3092613a243 (diff) | |
| parent | 0572e3da3ff5c3744b2f606ecf296d5f89a4bbdf (diff) | |
Merge upstream into ieee80211.
Hand-fix merge conflict in drivers/usb/net/zd1201.c.
Diffstat (limited to 'arch/i386/kernel/traps.c')
| -rw-r--r-- | arch/i386/kernel/traps.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index a61f33d06ea..cd2d5d5514f 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -803,15 +803,17 @@ void math_error(void __user *eip) */ cwd = get_fpu_cwd(task); swd = get_fpu_swd(task); - switch (((~cwd) & swd & 0x3f) | (swd & 0x240)) { + switch (swd & ~cwd & 0x3f) { case 0x000: default: break; case 0x001: /* Invalid Op */ - case 0x041: /* Stack Fault */ - case 0x241: /* Stack Fault | Direction */ + /* + * swd & 0x240 == 0x040: Stack Underflow + * swd & 0x240 == 0x240: Stack Overflow + * User must clear the SF bit (0x40) if set + */ info.si_code = FPE_FLTINV; - /* Should we clear the SF or let user space do it ???? */ break; case 0x002: /* Denormalize */ case 0x010: /* Underflow */ |