Hi,
mxcsr_feature_mask_init isn't needed in suspend/resume time (we can use boot
time mask). And actually it's harmful, as it clear task's saved fxsave in resume.
This bug is widely seen by users using zsh.
Signed-off-by: Shaohua Li<[email protected]>
---
linux-2.6.13-root/arch/i386/power/cpu.c | 1 -
linux-2.6.13-root/arch/x86_64/kernel/suspend.c | 1 -
2 files changed, 2 deletions(-)
diff -puN arch/i386/power/cpu.c~fpu_reinit_after_resume arch/i386/power/cpu.c
--- linux-2.6.13/arch/i386/power/cpu.c~fpu_reinit_after_resume 2005-09-14 09:35:13.000000000 +0800
+++ linux-2.6.13-root/arch/i386/power/cpu.c 2005-09-14 11:00:55.000000000 +0800
@@ -74,7 +74,6 @@ do_fpu_end(void)
/* restore FPU regs if necessary */
/* Do it out of line so that gcc does not move cr0 load to some stupid place */
kernel_fpu_end();
- mxcsr_feature_mask_init();
}
diff -puN arch/x86_64/kernel/suspend.c~fpu_reinit_after_resume arch/x86_64/kernel/suspend.c
--- linux-2.6.13/arch/x86_64/kernel/suspend.c~fpu_reinit_after_resume 2005-09-14 11:02:21.000000000 +0800
+++ linux-2.6.13-root/arch/x86_64/kernel/suspend.c 2005-09-14 11:02:41.000000000 +0800
@@ -82,7 +82,6 @@ do_fpu_end(void)
/* restore FPU regs if necessary */
/* Do it out of line so that gcc does not move cr0 load to some stupid place */
kernel_fpu_end();
- mxcsr_feature_mask_init();
}
void __restore_processor_state(struct saved_context *ctxt)
_
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |