Messages in this thread | | | Subject | Re: [PATCH v2] riscv: provide riscv-specific is_trap_insn() | From | patchwork-bot+linux-riscv@kernel ... | Date | Mon, 06 Nov 2023 15:00:29 +0000 |
| |
Hello:
This patch was applied to riscv/linux.git (for-next) by Palmer Dabbelt <palmer@rivosinc.com>:
On Tue, 29 Aug 2023 10:36:15 +0200 you wrote: > uprobes expects is_trap_insn() to return true for any trap instructions, > not just the one used for installing uprobe. The current default > implementation only returns true for 16-bit c.ebreak if C extension is > enabled. This can confuse uprobes if a 32-bit ebreak generates a trap > exception from userspace: uprobes asks is_trap_insn() who says there is no > trap, so uprobes assume a probe was there before but has been removed, and > return to the trap instruction. This causes an infinite loop of entering > and exiting trap handler. > > [...]
Here is the summary with links: - [v2] riscv: provide riscv-specific is_trap_insn() https://git.kernel.org/riscv/c/b701f9e726f0
You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
| |