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@@ -534,20 +534,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
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struct kprobe_ctlblk *kcb;
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struct kprobe_ctlblk *kcb;
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addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
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addr = (kprobe_opcode_t *)(regs->ip - sizeof(kprobe_opcode_t));
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- if (*addr != BREAKPOINT_INSTRUCTION) {
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- /*
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- * The breakpoint instruction was removed right
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- * after we hit it. Another cpu has removed
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- * either a probepoint or a debugger breakpoint
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- * at this address. In either case, no further
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- * handling of this interrupt is appropriate.
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- * Back up over the (now missing) int3 and run
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- * the original instruction.
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- */
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- regs->ip = (unsigned long)addr;
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- return 1;
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- }
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-
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/*
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/*
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* We don't want to be preempted for the entire
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* We don't want to be preempted for the entire
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* duration of kprobe processing. We conditionally
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* duration of kprobe processing. We conditionally
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@@ -579,6 +565,19 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
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setup_singlestep(p, regs, kcb, 0);
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setup_singlestep(p, regs, kcb, 0);
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return 1;
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return 1;
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}
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}
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+ } else if (*addr != BREAKPOINT_INSTRUCTION) {
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+ /*
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+ * The breakpoint instruction was removed right
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+ * after we hit it. Another cpu has removed
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+ * either a probepoint or a debugger breakpoint
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+ * at this address. In either case, no further
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+ * handling of this interrupt is appropriate.
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+ * Back up over the (now missing) int3 and run
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+ * the original instruction.
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+ */
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+ regs->ip = (unsigned long)addr;
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+ preempt_enable_no_resched();
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+ return 1;
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} else if (kprobe_running()) {
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} else if (kprobe_running()) {
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p = __get_cpu_var(current_kprobe);
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p = __get_cpu_var(current_kprobe);
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if (p->break_handler && p->break_handler(p, regs)) {
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if (p->break_handler && p->break_handler(p, regs)) {
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