From: Jisheng Zhang <jszh...@kernel.org> Current riscv's kprobe handlers are run with both preemption and interrupt enabled, this violates kprobe requirements. Fix this issue by keeping interrupts disabled for BREAKPOINT exception.
Fixes: c22b0bcb1dd0 ("riscv: Add kprobes supported") Signed-off-by: Jisheng Zhang <jszh...@kernel.org> --- arch/riscv/kernel/entry.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S index 744f3209c48d..4114b65698ec 100644 --- a/arch/riscv/kernel/entry.S +++ b/arch/riscv/kernel/entry.S @@ -130,6 +130,8 @@ skip_context_tracking: */ andi t0, s1, SR_PIE beqz t0, 1f + li t0, EXC_BREAKPOINT + beq s4, t0, 1f #ifdef CONFIG_TRACE_IRQFLAGS call trace_hardirqs_on #endif -- 2.31.0