diff options
Diffstat (limited to 'arch/i386/kernel/entry.S')
| -rw-r--r-- | arch/i386/kernel/entry.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 1e45ff292bc..3c73dc865ea 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S @@ -245,6 +245,9 @@ syscall_exit: restore_all: movl EFLAGS(%esp), %eax # mix EFLAGS, SS and CS + # Warning: OLDSS(%esp) contains the wrong/random values if we + # are returning to the kernel. + # See comments in process.c:copy_thread() for details. movb OLDSS(%esp), %ah movb CS(%esp), %al andl $(VM_MASK | (4 << 8) | 3), %eax |