From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=82.195.75.108 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793711404; b=jpeU8CcpS32mRCUW6mQO+A5ouYnCF6nxaXAbN1oaUjGzfzKiWZqUPUo8LMX/TjLYs5v2 W1lmX0TduVsiHEMAae/LI3rmOa73/x4V8UWUECT8z7AYQ67ikGU9k2D+taDs3+OORfSz+ vmu7c93aP17BA1po2f11NDPXX4Vbli6WBaLK7i/YKFh7QO4HphnoKZbXxxUvYFdEHQso1 CtGc5Yim//ONlhaIJX/ObS+XuhrSLRZ4eurWE5joQGXmnu1v/qHtgduri6q+mxxvv8qnk 9uvbB8REg+7XoFCgIn55F4Os8+09jCyftsU+fKlX+bMisu8ITFeZWS0csBmutZkIXjg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793711404; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To:X-Debian-User; bh=w3H7blSooLszPMxpdrt6nkYHGz8mEQiZ6Smc95l6Wxo=; b=0jIuLrp9iR/CcM0/aR/G4+yA4PXFLOGrQQhG4cQEWCxtipQJ6dBBjJ88pcQzjHM1noxg uuR6sopMxQvZ6khlLFLb+/uEi0NG0DPDUUDhlGHj62dNBQy+uOvfVUlSczh12XUZviXPD phb2zLou38Y9y/I+v/VqQiFPG1PD0KmmOHXQ3mt1CqaTX/NqpkRyf2gFADieOAYymoaVK TLbJ/36H/Oxd3V4sIFOs59RSJdZCnFjLUpi1jA35qa6DNKIWc3Jkf8DVUZVQAVVeDwH6b I3K1z7PD3j/7vgFf0cQsofYmjaN9lYl6F2pBuQj3ZkFdACG8frPrPJMphhF2EVCa3IA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=debian.org; spf=pass smtp.mailfrom=debian.org; dkim=pass header.d=debian.org header.i=@debian.org header.a=rsa-sha256 header.s=smtpauto.stravinsky header.b=cxWQCZlZ; arc=none smtp.remote-ip=82.195.75.108 Received: from stravinsky.debian.org (stravinsky.debian.org [82.195.75.108]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ED3DD606A326; Tue, 3 Nov 2026 13:10:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org ED3DD606A326 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=debian.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=debian.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=debian.org header.i=@debian.org header.a=rsa-sha256 header.s=smtpauto.stravinsky header.b=cxWQCZlZ DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=w3H7blSooLszPMxpdrt6nkYHGz8mEQiZ6Smc95l6Wxo=; b=cxWQCZlZV2IvzjmfRq2QtTPOQW 54CSCbMtbNhCCuKN6nHKoXxgcUwzTC0AYb2d0QRHp+H+TCxCuwohIRrVe3qkyAkkupoKiw/6FJBtE 9TOlPD6/4vliE8F81UqEAxHlp0NVe6nkdgmlSQUYQCBqvQjPrKRfv7OVY8OVo6FbKSNc2Cvc6kx8Y kWDEACaM/DNLJhLq0xqE3SnmoTR+ZGU0+Zbun6Puct5FSQ86QhSDtXXIEB/9yEvPkJyDgDrHVUUSh ue7jZ7QTQsKB6lsp5Jw/SVhY/s8yebdz6dQB9qINT7t1AwljGPNd0VQIDsFeEDG59m7+Kox52PMza n4x7LEig==; Received: from authenticated-user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1xOEH1-006xOC-2a; Tue, 03 Nov 2026 13:10:00 +0000 Date: Tue, 3 Nov 2026 05:09:55 -0800 From: Breno Leitao To: Shuai Liu <847807867@qq.com> Cc: Jens Axboe , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzbot+675af112519ca34f5502@syzkaller.appspotmail.com Subject: Re: [PATCH] io_uring/sqpoll: don't set IO_SQ_THREAD_SHOULD_STOP on thread exit Message-ID: References: X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Debian-User: leitao On Mon, Nov 02, 2026 at 04:05:42PM +0800, Shuai Liu wrote: > WARNING: io_uring/sqpoll.c:88 at io_sq_thread_stop > Workqueue: iou_exit io_ring_exit_work > Call Trace: > io_put_sq_data > io_sq_thread_finish > io_ring_ctx_free > io_ring_exit_work I've started seeing this issue on my debug kernels. Not sure if this is the right approach to fix it, but, I've tested this patch, and the warning went away. Jens, feel free to add my `Tested-by: Breno Leitao ' if you decide to get this patch in. --breno