From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 141D1280331 for ; Mon, 20 Jul 2026 07:11:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784531503; cv=none; b=Ji9i9G2TtECZkHTwbYIFSvTNBpSrjPBLHW40r+Kfu+aO7EkQL4827PDw54FaC24kRJAqb/ks3BUJYxkRrZinPhbJgVsdKMzT6JkED+ugBPCm+E2Gyyjx/xvcNlOdEONkvSTty8baQZDLJ1OdJY+G1MXU2m6ueXFWJ8dwl/2tiG4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784531503; c=relaxed/simple; bh=nYD9zXX3c9HHhl9NONzswyD+7eKrsUrSq8O7MLUXBcQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=qdn014yVSKBktKlTWIDs7ixbbaFcqVNAPY4eVWqbOdsBFA3hYPTT0viM3pO1EUZ2dxK17KXPME2I6SVcGoWOn5h/SfKDNfC3/qZZtdYADI/pTSGF2tvzcFJHHaSu8uTABPMTm9k6Be/YzJmX4YUqksdIG0HoO7PP5QiVsvtsUPM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=ruOFKnIX; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=QrCZh3ru; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ruOFKnIX"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="QrCZh3ru" From: Nam Cao DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1784531499; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=nYD9zXX3c9HHhl9NONzswyD+7eKrsUrSq8O7MLUXBcQ=; b=ruOFKnIXwLREv2+wY8QekiaexlWPlXyo0QG4Am8n69WjnYyW9qHtWpm5/TZCdj4cyRxfTv SbiIcuiYQhbEr51Jm4hvANqJafFMq6daEM0vTgGIeG7YxfhOMZMRLnhRNqXCrZpxwfJAm9 Nb8X4e6MPAQzUFKynN4JgwRvfmPb0SRrntS5uq4JEdTf3ZMZ3jW60rFw58NYG0o/OMvGWu YCjx+losFM0U3muBz18MSgXodcO6OUtBueJRkpxAp+KDHpTAFTWZy/Hwy0AKvTDWbhjad8 1DPMQS6qjZtWuaECZOwwxLYC7t3KYfsHG+AH2LujbEYGCZ+DOuObiRp8M3lrHg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1784531499; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=nYD9zXX3c9HHhl9NONzswyD+7eKrsUrSq8O7MLUXBcQ=; b=QrCZh3ruDNPXVxsBRAnLKLdVGu5gelwzmrLAr/kCkZrMeO53GqI8erkEMgE4B+NtZtN5Gz OxfwrS6xA+k6M5CQ== To: Xiaofeng Yuan , Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Alexandre Ghiti , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, xiaofengmian@163.com Subject: Re: [PATCH v4 0/2] riscv: fix kprobes on minimal kernel configs In-Reply-To: <20260720032258.5188-1-xiaofengmian@163.com> References: <20260720032258.5188-1-xiaofengmian@163.com> Date: Mon, 20 Jul 2026 09:11:37 +0200 Message-ID: <87h5luf846.fsf@yellow.woof> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Xiaofeng Yuan writes: > When building with an allnoconfig-derived minimal configuration > (without CONFIG_STRICT_MODULE_RWX), kprobes fails because > instruction slot pages from EXECMEM_KPROBES are read-only and > patch_map() bypasses the fixmap writable alias. > > These two patches fix the infrastructure. Reviewed-by: Nam Cao