From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 88B6CC433F5 for ; Fri, 5 Nov 2021 23:36:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5884B61053 for ; Fri, 5 Nov 2021 23:36:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232224AbhKEXir (ORCPT ); Fri, 5 Nov 2021 19:38:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229917AbhKEXir (ORCPT ); Fri, 5 Nov 2021 19:38:47 -0400 Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE3A3C061570 for ; Fri, 5 Nov 2021 16:36:06 -0700 (PDT) Received: by mail-ed1-x52b.google.com with SMTP id r12so38249274edt.6 for ; Fri, 05 Nov 2021 16:36:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amikom.ac.id; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=AAOPEd8l4rwxaVgWxxVBtFNi0CnTYQV8QwVbp1ube3M=; b=V6HbH+Gv0TpnkdyhJjKoEP1CfgwoBLpKXTY+9IatoqKXWzdi1CP9f42ULB64az0f9q y8CKAA8n+vRJCQJKU/ldA6IomjSlNhANGDEgt4PxzLQlY6qWAcGMH9SM3zie3VfvmHQH a1mJwIqguRrtIow5T4bRwXcEB1f5bt3SS+A0KDSUnr+LE7EBffJNtA4RL6w+0atY5l/4 tZK4XBvgDirz8NeWnRN9iKft24UIVWFlg4JaZ7S7vus7yrRtxoJUEHochRe27Y8aGYOX kJNJHYkC8EUFyvul6KaVvH+QnOxRkkpWiQrkM2BPeSOnkh50TU7sWOe+Yb+5bgMYuxIM eiSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=AAOPEd8l4rwxaVgWxxVBtFNi0CnTYQV8QwVbp1ube3M=; b=7yIuXPFXHIhQST7SLir+HX44paXxhHg77v+upDHvjsggezd31KXuJU2ESYQtigksUZ MVFS5m+TyeY2/cRDPtMJYC40lCoG5Rpni1jac0AuxDeUURi2y7sRn2h3LfG38gBJoLZK 1Fhc1mQl1mF0W8nldM9OXvpZ3Qf2E7/QpTgp6ZLGuHPG/Uwx94y8B+LVYgERiNZzBH10 6eKlfJn+3q579B0vaZxHybCt/aA1w9cSpJls7DDFfxM7eNn3+E5hCishwFv0cQVr+oYf pDnPkPo+uZehgzKGPTP26++fwPvCLcUHhYdmw+Azbl3CI+KWBaAizL5DIQ4JqLmiK9yA +hxQ== X-Gm-Message-State: AOAM530bKZfvfDwgMWsykcVMmI+M/tTsVr0TAWG2h4G6MbhLXltP472p uqrzPjLNr1noh0L4Rv/VKZ+7Kcs1gzW/ZPnRJbro4g== X-Google-Smtp-Source: ABdhPJygQ+pDV2vzrnSNgfASRhK60OCfSNl99SuJfIQPctO9afyVT4S8NtRnVg6Q7a7LH7dB8i/aQHseAZfQgoVPywg= X-Received: by 2002:a50:e145:: with SMTP id i5mr82013114edl.16.1636155365274; Fri, 05 Nov 2021 16:36:05 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Ammar Faizi Date: Sat, 6 Nov 2021 06:35:53 +0700 Message-ID: Subject: Re: [PATCH v2 liburing] test: Add kworker-hang test To: Jens Axboe Cc: Pavel Begunkov , io-uring Mailing List , Bedirhan KURT Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Wed, Oct 20, 2021 at 7:52 PM Ammar Faizi wrote: > > Add kworker-hang test to reproduce this: > > [28335.037622] INFO: task kworker/u8:3:77596 blocked for more than 10 seconds. > [28335.037629] Tainted: G W OE 5.15.0-rc4-for-5.16-io-uring-00060-g4922ab639eb6 #4 > [28335.037637] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > [28335.037642] task:kworker/u8:3 state:D stack: 0 pid:77596 ppid: 2 flags:0x00004000 > [28335.037650] Workqueue: events_unbound io_ring_exit_work Hi Jens, will you take this patch? If yes, I will spin the v3 because this one no longer applies since the test/Makefile changed. This kworker hang bug still lives in Linux 5.15 stable anyway. -- Ammar Faizi