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=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 69608C3A59E for ; Wed, 21 Aug 2019 08:24:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3A9DF2339E for ; Wed, 21 Aug 2019 08:24:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=googlemail.com header.i=@googlemail.com header.b="GW2/QhsQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726799AbfHUIYE (ORCPT ); Wed, 21 Aug 2019 04:24:04 -0400 Received: from mail-vs1-f65.google.com ([209.85.217.65]:37030 "EHLO mail-vs1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726541AbfHUIYE (ORCPT ); Wed, 21 Aug 2019 04:24:04 -0400 Received: by mail-vs1-f65.google.com with SMTP id q188so821743vsa.4; Wed, 21 Aug 2019 01:24:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=mime-version:from:date:message-id:subject:to:cc; bh=0ZYOhaXziyopUu4yQ7NDO9r3XJlJMH+kc0PEY3F5Biw=; b=GW2/QhsQg7295rXP4rzhO2ZxxyCnttdz88ovVCRwvoYtsstRBYYLUQU2EbtpRm15c0 UHPuf4myAXJ1Qc/J9ctnEWWXocTo9v9Jbep6nr7blJwnOYCLkK+/uL+g+Uf4AFOM5tn5 CS//Q9CisOSZicTmq9xv1P3h76Ldmct8COTbK3w/DJSS6hY9K9h/JvzMcQdg5L3dpdwS j+cyYoq8HI60XIaPuS2bCPNSzTdnkV+WPZzcUDIVD8rf6Bmj5iCVHtYMOq2bq+LEv6Cs sOd8w77xgylEMddG+Z+61oFg/D9ieLsfAcLKvI6a94eZcmSKVMNx4/x1vWnT1CDws+wn Kqag== 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=0ZYOhaXziyopUu4yQ7NDO9r3XJlJMH+kc0PEY3F5Biw=; b=phx+00LgcTWfFDWPTGJdCdPoSse1RO53DiSnufe2yl6i2WNGMeJlz8t3/fx3YXr+6P Zr9E5eFKaV5UfnSQBeXK5gAcHIkdAlXVrNBXvyIQw4xtuvlT3w8HlahQ3EBI1FB+ZPiA 1E2toGoXedH2pFvIzOmgLh2qDAl7ngoY0CTNV9FGvyTKEy/jko+u4o1jKRb5oK3YjAkY gPhnW9CcvD1SCIhQM/bUZm+hLMRFEl7LxQSgvyQYpRpYveuaLfhi7Oerz+JrJJ8VozMK hYJGyv9O0kfA8vsUJZWx1yShMxBWIZT3CRBIBQFqqbOXVsq8CMCy0VGMTjRILAilKpNZ x6eA== X-Gm-Message-State: APjAAAXdCOga4+qMC1VDDThOb7jg4q1d+FAd2EbIF3bhffBohUESO58T S19ksLeW7NMnecJyPaLaWsourjt4ptUfg/xRfjNqvGdqtco= X-Google-Smtp-Source: APXvYqyhIW1BgX238dkpOipJIIDenE8ivDd1DgGtgQNfuw+MwPeN6jaXWpKE3XhPBC27BT9WfEmUa8T5par18ZGTkLc= X-Received: by 2002:a67:be15:: with SMTP id x21mr20182663vsq.142.1566375842882; Wed, 21 Aug 2019 01:24:02 -0700 (PDT) MIME-Version: 1.0 From: Yegor Yefremov Date: Wed, 21 Aug 2019 10:23:12 +0200 Message-ID: Subject: musb: Could not flush host TX2 fifo: csr: 2403 To: linux-omap@vger.kernel.org Cc: Bin Liu , linux-usb Content-Type: text/plain; charset="UTF-8" Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org I'm moving our systems to the recent kernel and have encountered an older musb issue [1] that occurs with some 3G/4G modems. In this case it is SIMCom 7600G-H. After this dump occurs the modem is still working though. [ 45.585644] ------------[ cut here ]------------ [ 45.590785] WARNING: CPU: 0 PID: 242 at drivers/usb/musb/musb_host.c:115 musb_h_tx_flush_fifo+0x118/0x138 [ 45.600421] musb-hdrc musb-hdrc.0: Could not flush host TX2 fifo: csr: 2403 [ 45.607433] Modules linked in: 8021q garp stp mrp llc wl18xx wlcore mac80211 libarc4 sha256_generic cfg80211 wlcore_sdio c_can_platform omap_rng rng_core c_can can_dev at24 gpio_pca953x omap_wdt watchdog rtc_omap leds_gpio led_class [ 45.628258] CPU: 0 PID: 242 Comm: ModemManager Not tainted 5.3.0-rc5 #2 [ 45.634920] Hardware name: Generic AM33XX (Flattened Device Tree) [ 45.641092] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 45.648910] [] (show_stack) from [] (dump_stack+0xd8/0x110) [ 45.656291] [] (dump_stack) from [] (__warn+0xe0/0x10c) [ 45.663314] [] (__warn) from [] (warn_slowpath_fmt+0x44/0x6c) [ 45.670862] [] (warn_slowpath_fmt) from [] (musb_h_tx_flush_fifo+0x118/0x138) [ 45.679806] [] (musb_h_tx_flush_fifo) from [] (musb_cleanup_urb+0x128/0x204) [ 45.688660] [] (musb_cleanup_urb) from [] (musb_urb_dequeue+0x14c/0x234) [ 45.697165] [] (musb_urb_dequeue) from [] (usb_hcd_unlink_urb+0x68/0x84) [ 45.705667] [] (usb_hcd_unlink_urb) from [] (usb_wwan_write+0x64/0x1f0) [ 45.714090] [] (usb_wwan_write) from [] (serial_write+0x34/0x60) [ 45.721898] [] (serial_write) from [] (n_tty_write+0x360/0x460) [ 45.729626] [] (n_tty_write) from [] (tty_write+0x1c0/0x36c) [ 45.737092] [] (tty_write) from [] (__vfs_write+0x28/0x1c4) [ 45.744465] [] (__vfs_write) from [] (vfs_write+0xa0/0x184) [ 45.751835] [] (vfs_write) from [] (ksys_write+0x98/0xdc) [ 45.759033] [] (ksys_write) from [] (ret_fast_syscall+0x0/0x28) [ 45.766743] Exception stack(0xcb911fa8 to 0xcb911ff0) [ 45.771845] 1fa0: 00160170 bea0fc14 00000009 00141be9 00000001 bea0fc14 [ 45.780086] 1fc0: 00160170 bea0fc14 00000000 00000004 00141be9 00000001 00000001 00141be9 [ 45.788322] 1fe0: 00000000 bea0fbc8 b68d992b b68d9934 [ 45.793416] irq event stamp: 109442 [ 45.796945] hardirqs last enabled at (109441): [] __irq_svc+0x74/0x98 [ 45.804406] hardirqs last disabled at (109442): [] _raw_spin_lock_irqsave+0x1c/0x4c [ 45.812992] softirqs last enabled at (109180): [] __do_softirq+0x360/0x524 [ 45.820880] softirqs last disabled at (109157): [] irq_exit+0x12c/0x17c [ 45.828416] ---[ end trace eecf6f3aa6209643 ]--- [1] https://patchwork.kernel.org/patch/7389591/ Regards, Yegor