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 X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 030ABC4361B for ; Fri, 4 Dec 2020 18:22:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CDAFC22C9C for ; Fri, 4 Dec 2020 18:22:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387580AbgLDSWj (ORCPT ); Fri, 4 Dec 2020 13:22:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727927AbgLDSWj (ORCPT ); Fri, 4 Dec 2020 13:22:39 -0500 Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF983C0613D1 for ; Fri, 4 Dec 2020 10:21:52 -0800 (PST) Received: by mail-ed1-x52d.google.com with SMTP id b73so6775674edf.13 for ; Fri, 04 Dec 2020 10:21:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:from:date:message-id:subject:to:cc; bh=ZRVh9nEjQvUMIF508xcL3n/raN8xu3HvHHn5B7tzkG0=; b=EL5y9hBpj6GRCi8l2vMDH/FJOG7I547GwjN3OeZBqD9nmmw0IxEmOsLiaNfedZBxuH uo9dBI345APAYZYJLOY4NQd1d0GfZzxIMQv0ZKIbg8aj4tm5Ea8h2h93Pgs1qSxhgK43 pnL56vHL4OqCk4budJq7WliGWde5V/7JnsLAfd9CH5hxrMUpfTYppRgzIWEcKA1fArrp x9CwcP9mn+vU+lJGNWLh3JAQikVmuQ+WDocQOfOwmAcHpQ6aG3oZ/9MUjroSge+kQmQd xD6rw8KRt3YvK4AEQ/i0Q1JedpG8SBPITyje4+hhxHAaIKXdCCMTn7RHEbFI51JviXbf g9NQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=ZRVh9nEjQvUMIF508xcL3n/raN8xu3HvHHn5B7tzkG0=; b=E8Vz13jvnzanj99PTIQBdeQwkoRgFIFG3DHIOQLIa6lb4jkXgSiMwOwYc3bz4dDCEV 4R/9JXE25y0hOPNRJABc/2R9aLrl51pbIIna+EzW82ehn54Sl7kb66AwzicdOfBrbmOK cQVrCctK9S9SWIoMLfg80EyLxUilS3jhYAF9+RCuwjRJdA2RhVWIEN/L9furCgVqHoT3 pAg08cE/TG/d4PbSky1gABcbGB7xwwHN8k/X2WZYZFuUYkWentizCX6HmctR1BaHaPhn +iItzveWWUYXUIj0J4jTVOP94VBC+LcyI0zhJV77tjHEJBicU2KxQt2CTjR7ZXFN3uZ4 pcVA== X-Gm-Message-State: AOAM531exU/1HwGNzimPsiA8XK4Z6DbhFYBsVr3pDy1e30rHk7r0nNqM Fr0wFgqj8OAViqKSw7oJ2LnL/7nez96vAlc2KwVideXwprXjQNOc X-Google-Smtp-Source: ABdhPJxhhWwBPD60dOctXmgKnIbCBK7ZM990qyfx3XJkIdxJ4AWmvXsllEsnGRPblHC7nDFEIFiU8tWNG27BjMCSIdo= X-Received: by 2002:aa7:da8f:: with SMTP id q15mr8747868eds.239.1607106110881; Fri, 04 Dec 2020 10:21:50 -0800 (PST) MIME-Version: 1.0 From: Naresh Kamboju Date: Fri, 4 Dec 2020 23:51:39 +0530 Message-ID: Subject: BUG: KCSAN: data-race in mutex_spin_on_owner+0xef/0x1b0 To: open list , linux-usb@vger.kernel.org, lkft-triage@lists.linaro.org, rcu@vger.kernel.org, kasan-dev Cc: Greg Kroah-Hartman , "Paul E. McKenney" , Marco Elver , Peter Zijlstra , Ingo Molnar , Will Deacon , Lee Jones , Thierry Reding , mathias.nyman@linux.intel.com, Qian Cai Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org LKFT started testing KCSAN enabled kernel from the linux next tree. Here we have found BUG: KCSAN: data-race in mutex_spin_on_owner and several more KCSAN BUGs. This report is from an x86_64 machine clang-11 linux next 20201201. Since we are running for the first time we do not call this regression. [ 4.745161] usbcore: registered new interface driver cdc_ether [ 4.751281] ================================================================== [ 4.756653] usbcore: registered new interface driver net1080 [ 4.752139] BUG: KCSAN: data-race in mutex_spin_on_owner+0xef/0x1b0 [ 4.752139] [ 4.752139] race at unknown origin, with read to 0xffff90a80098b034 of 4 bytes by task 252 on cpu 1: [ 4.769781] usbcore: registered new interface driver cdc_subset [ 4.752139] mutex_spin_on_owner+0xef/0x1b0 [ 4.752139] __mutex_lock+0x69d/0x820 [ 4.752139] __mutex_lock_slowpath+0x13/0x20 [ 4.781657] usbcore: registered new interface driver zaurus [ 4.752139] mutex_lock+0x9d/0xb0 [ 4.752139] ata_eh_acquire+0x2e/0x80 [ 4.752139] ata_msleep+0x91/0xa0 [ 4.792317] usbcore: registered new interface driver cdc_ncm [ 4.752139] sata_link_debounce+0x1ad/0x2f0 [ 4.752139] sata_link_resume+0x32f/0x4a0 [ 4.752139] sata_link_hardreset+0x456/0x640 [ 4.802369] usbcore: registered new interface driver r8153_ecm [ 4.752139] ahci_do_hardreset+0x177/0x230 [ 4.752139] ahci_hardreset+0x23/0x40 [ 4.752139] ata_eh_reset+0x91e/0x1bb0 [ 4.810641] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 4.810482] ata_eh_recover+0x79b/0x2bd0 [ 4.810482] sata_pmp_error_handler+0x7d1/0x1340 [ 4.810482] ahci_error_handler+0x7c/0xc0 [ 4.819247] ehci-pci: EHCI PCI platform driver [ 4.810482] ata_scsi_port_error_handler+0x708/0xd30 [ 4.810482] ata_scsi_error+0x128/0x160 [ 4.826321] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 4.810482] scsi_error_handler+0x26d/0x700 [ 4.810482] kthread+0x20b/0x220 [ 4.836069] ohci-pci: OHCI PCI platform driver [ 4.810482] ret_from_fork+0x22/0x30 [ 4.810482] [ 4.844397] uhci_hcd: USB Universal Host Controller Interface driver [ 4.810482] Reported by Kernel Concurrency Sanitizer on: [ 4.810482] CPU: 1 PID: 252 Comm: scsi_eh_1 Not tainted 5.10.0-rc6-next-20201201 #2 [ 4.810482] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.2 05/23/2018 [ 4.855343] xhci_hcd 0000:00:14.0: xHCI Host Controller [ 4.810482] ================================================================== metadata: git_repo: https://gitlab.com/aroxell/lkft-linux-next target_arch: x86 toolchain: clang-11 git_describe: next-20201201 kernel_version: 5.10.0-rc6 download_url: https://builds.tuxbuild.com/1l8eiWgGMi6W4aDobjAAlOleFVl/ full test log link, https://lkft.validation.linaro.org/scheduler/job/2002643#L831 -- Linaro LKFT https://lkft.linaro.org