From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f49.google.com (mail-ej1-f49.google.com [209.85.218.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EF6E51C232B; Mon, 4 Nov 2024 16:54:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730739242; cv=none; b=YZrdK7Ly1zrJgRgCzGae1tRMNzBdOJA7HgPZeCE/NUfdVvQS2YVN4EvFNKj0jFlUTdAlsN9Bxna0WUXwEZo7YzNRdFWWGwXxLKZYxHZhkjkMDxd3jvjjy3R/q38XYhGn71VAm5Jca6GglcARd8HkkAZ1OR25cKbNo/kwpEgrhjg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730739242; c=relaxed/simple; bh=YOB8n4D/He926EhIDMQcEt5yNMscrw6BO60Ek5hqPyI=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=haB/zivyreCSswvObAzl11Kos4XjPLFg9NBWL2sfDbj3FqjAuBHEY1YMu0CK8E+pWjoe6fL7/Xq8KqUX/JYmaxCtFAALLT7Pczaz3tmmx62AzACBn1tYEdvPy5mDrmW5lM5A4qmODyS36iUV4EcngLadWzga2ot8lonjx3Almg0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=H34XPcFN; arc=none smtp.client-ip=209.85.218.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="H34XPcFN" Received: by mail-ej1-f49.google.com with SMTP id a640c23a62f3a-a9a0c40849cso797704966b.3; Mon, 04 Nov 2024 08:54:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1730739239; x=1731344039; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id:from :to:cc:subject:date:message-id:reply-to; bh=+7nRYR/2twlj2QlRClikfFGq0XOQg6xUVkylrGyMp54=; b=H34XPcFNxoaG01vM1wohfCNklsKRyaXTdQGO8iwhoWLSzrvvjfU9flGug/sI/Mj/c/ gsx30leu+xXqJajCjzXUFQPFNaZphjFt2FwRHkPLkGkRmZoVgF7X/vIyStk1REyEpVRt +K7/BYDpmgHlk++9evWXmlxZ2eMNRUyRPUJaCGhRijHuJ50i+vNsmmxxQ1qyZ51Hwehy NfX3OWDcLCC4ccaLVrlSt2H+E+20xT8QJZxvm97bNxMyqan4Xl3ULxIPo9pytppSYSTs vSuy4FAqSaNNUUjgKeUo3R2l9AbN36lCvhzeIT9FhF/m3aHV3f+Fu+uSZDzmh7zFEBAU S7Ng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730739239; x=1731344039; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=+7nRYR/2twlj2QlRClikfFGq0XOQg6xUVkylrGyMp54=; b=ek0Mi114YBhIlzvroCOqjCR89TlZRy3vv6fv20DdMoKGLDJNqJGmTsLLge+FZbaAhx bj8gASBONNxYzEKUTfDchlYnn6pT+wbALZ9zeESHWCdvQwJTtVpwxRfHOb/s5Y7hPlw4 qnrXsT5mhm/KQfoOdBH4O4gIM8vu+JVuOjRGrJvZ6HgZj9y/TYwd/Fg8Kvna8HSGH7oh X0W0SBt3ppNl3cyKEZhX5E8L4PgdLz6ggAA9FQJEIk5YsPqQ/hzf4jNVWMWC0TACJr3z 44nL/N/Te+NSJGBTc3BfYE2V2q7dLy9MjjioCa/MrvZ2By/fBXQaEEsXBGV7mV65O30N vXVQ== X-Forwarded-Encrypted: i=1; AJvYcCU0z0KECVOe3LnXFnJ6FQ9fHZ4chcsENpDmxCvCllhaBdyOHFZs0dhA9VboevoKPUotbOEXWS+NYM17@vger.kernel.org, AJvYcCUQr/dtpKkKwgS5SzTWIk/+J1eqt4jU+9Z9CSP0t3ryaabsGXvkWfMGm9A1q1+uL1gou4Fto2+z0A==@vger.kernel.org, AJvYcCVLWvOAT8C4Tav3Z+LngG8pmIj+aatVwkjmfAh4ZbL65cuBujtLXuFuA713RyUhrvU91teuhS1WzshQE0Ld@vger.kernel.org X-Gm-Message-State: AOJu0YyBu8j5GPJMmiPdzgmsjGhhZlclGJv7Of7ssdj+DavxsQsqGJYN mRI6RqrNgBu1/OdnFCMqr06FwkFk7yhcP7Rk9wGhwwcbwPQa8XOt X-Google-Smtp-Source: AGHT+IEYPdDn43d8xifNgZC0HZIApp23fKzpF1IK9yBHhD8L7WCiQY/joNPOetwS2383jK7J7zAT9A== X-Received: by 2002:a17:907:d851:b0:a9e:b08e:3de1 with SMTP id a640c23a62f3a-a9eb08e4023mr28483666b.36.1730739238761; Mon, 04 Nov 2024 08:53:58 -0800 (PST) Received: from [192.168.42.71] ([163.114.131.193]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a9eb17cf8e3sm4303566b.124.2024.11.04.08.53.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 04 Nov 2024 08:53:58 -0800 (PST) Message-ID: <09b7008b-b8c1-4368-9d04-a3bdb96ab26d@gmail.com> Date: Mon, 4 Nov 2024 16:54:04 +0000 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [io-uring?] [usb?] WARNING in io_get_cqe_overflow (2) To: Jens Axboe , syzbot , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <6728b077.050a0220.35b515.01ba.GAE@google.com> <13da163a-d088-4b4d-8ad1-dbf609b03228@gmail.com> <965a473d-596a-4cf4-8ec2-a8626c4c73f6@gmail.com> <16f43422-91aa-4c6d-b36c-3e9cb52b1ff2@gmail.com> Content-Language: en-US From: Pavel Begunkov In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/4/24 15:43, Jens Axboe wrote: > On 11/4/24 8:34 AM, Pavel Begunkov wrote: >> On 11/4/24 15:27, Pavel Begunkov wrote: ... >> Regardless, the rule with sth like that should be simpler, >> i.e. a ctx is getting killed => everything is run from fallback/kthread. > > I like it, and now there's another reason to do it. Can you out the > patch? Let's see if it works, hopefully will try today. -- Pavel Begunkov