diff options
Diffstat (limited to 'arch/x86_64/kernel/traps.c')
| -rw-r--r-- | arch/x86_64/kernel/traps.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index 2707a27b81c..09e4a6460e7 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -688,8 +688,14 @@ asmlinkage void *do_debug(struct pt_regs * regs, unsigned long error_code) */ if ((regs->cs & 3) == 0) goto clear_TF_reenable; - if ((tsk->ptrace & (PT_DTRACE|PT_PTRACED)) == PT_DTRACE) - goto clear_TF; + /* + * Was the TF flag set by a debugger? If so, clear it now, + * so that register information is correct. + */ + if (tsk->ptrace & PT_DTRACE) { + regs->eflags &= ~TF_MASK; + tsk->ptrace &= ~PT_DTRACE; + } } /* Ok, finally something we can handle */ |