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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8941C433F5 for ; Fri, 14 Jan 2022 10:56:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240599AbiANK40 (ORCPT ); Fri, 14 Jan 2022 05:56:26 -0500 Received: from mx0b-001ae601.pphosted.com ([67.231.152.168]:36024 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240580AbiANK4Y (ORCPT ); Fri, 14 Jan 2022 05:56:24 -0500 Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.16.1.2/8.16.1.2) with ESMTP id 20E7Rpol007927; Fri, 14 Jan 2022 04:56:22 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=date : from : to : cc : subject : message-id : mime-version : content-type; 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15.1.2375.18 via Frontend Transport; Fri, 14 Jan 2022 10:56:20 +0000 Received: from ediswmail.ad.cirrus.com (ediswmail.ad.cirrus.com [198.61.86.93]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 56C562A9; Fri, 14 Jan 2022 10:56:20 +0000 (UTC) Date: Fri, 14 Jan 2022 10:56:20 +0000 From: Charles Keepax To: CC: , , , Subject: ChipIdea USB regression Message-ID: <20220114105620.GK18506@ediswmail.ad.cirrus.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Proofpoint-GUID: FP5WiD8EWYA-jLLOFixC6QpjY7Qaoaew X-Proofpoint-ORIG-GUID: FP5WiD8EWYA-jLLOFixC6QpjY7Qaoaew X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi guys, My Zynq based board stopped booting today, a bisect points to this patch: commit 0f153a1b8193 ("usb: chipidea: Set the DT node on the child device") It looks like it gets stuck in some sort of boot loop of doom: 48 locks held by swapper/0/1: #0: 42a2c0d8 (&dev->mutex){....}-{3:3}, at: __driver_attach+0x12c/0x15c #1: 42a41cd8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x2c/0x164 #2: 42abdcd8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x2c/0x164 #3: 42abd8d8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x2c/0x164 #4: 42abd4d8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x2c/0x164 #5: 42abd0d8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x2c/0x164 #6: 42b00cd8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x2c/0x164 #7: 42b008d8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x2c/0x164 [<40100af4>] (__irq_svc) from [<40920270>] (_raw_spin_unlock_irqrestore+0x30/0x5c) [<40920270>] (_raw_spin_unlock_irqrestore) from [<40433238>] (klist_next+0x84/0xac) [<40433238>] (klist_next) from [<40503a5c>] (bus_for_each_drv+0x60/0xbc) [<40503a5c>] (bus_for_each_drv) from [<40505ea8>] (__device_attach+0xc4/0x164) [<40505ea8>] (__device_attach) from [<405047e0>] (bus_probe_device+0x28/0x84) [<405047e0>] (bus_probe_device) from [<405022b8>] (device_add+0x590/0x7c4) [<405022b8>] (device_add) from [<4050835c>] (platform_device_add+0xa8/0x1f0) [<4050835c>] (platform_device_add) from [<405f329c>] (ci_hdrc_add_device+0x3b4/0x434) [<405f329c>] (ci_hdrc_add_device) from [<405f5f0c>] (ci_hdrc_usb2_probe+0x130/0x180) [<405f5f0c>] (ci_hdrc_usb2_probe) from [<40507e60>] (platform_probe+0x58/0xa8) [<40507e60>] (platform_probe) from [<4050584c>] (really_probe+0x1d8/0x418) [<4050584c>] (really_probe) from [<40505c44>] (__driver_probe_device+0x1b8/0x1f0) [<40505c44>] (__driver_probe_device) from [<40505ca0>] (driver_probe_device+0x24/0xa4) [<40505ca0>] (driver_probe_device) from [<405060b0>] (__device_attach_driver+0xbc/0x110) [<405060b0>] (__device_attach_driver) from [<40503aa4>] (bus_for_each_drv+0xa8/0xbc) [<40503aa4>] (bus_for_each_drv) from [<40505ea8>] (__device_attach+0xc4/0x164) [<40505ea8>] (__device_attach) from [<405047e0>] (bus_probe_device+0x28/0x84) [<405047e0>] (bus_probe_device) from [<405022b8>] (device_add+0x590/0x7c4) [<405022b8>] (device_add) from [<4050835c>] (platform_device_add+0xa8/0x1f0) [<4050835c>] (platform_device_add) from [<405f329c>] (ci_hdrc_add_device+0x3b4/0x434) [<405f329c>] (ci_hdrc_add_device) from [<405f5f0c>] (ci_hdrc_usb2_probe+0x130/0x180) [<405f5f0c>] (ci_hdrc_usb2_probe) from [<40507e60>] (platform_probe+0x58/0xa8) [<40507e60>] (platform_probe) from [<4050584c>] (really_probe+0x1d8/0x418) [<4050584c>] (really_probe) from [<40505c44>] (__driver_probe_device+0x1b8/0x1f0) [<40505c44>] (__driver_probe_device) from [<40505ca0>] (driver_probe_device+0x24/0xa4) [<40505ca0>] (driver_probe_device) from [<405060b0>] (__device_attach_driver+0xbc/0x110) [<405060b0>] (__device_attach_driver) from [<40503aa4>] (bus_for_each_drv+0xa8/0xbc) [<40503aa4>] (bus_for_each_drv) from [<40505ea8>] (__device_attach+0xc4/0x164) [<40505ea8>] (__device_attach) from [<405047e0>] (bus_probe_device+0x28/0x84) [<405047e0>] (bus_probe_device) from [<405022b8>] (device_add+0x590/0x7c4) [<405022b8>] (device_add) from [<4050835c>] (platform_device_add+0xa8/0x1f0) [<4050835c>] (platform_device_add) from [<405f329c>] (ci_hdrc_add_device+0x3b4/0x434) [<405f329c>] (ci_hdrc_add_device) from [<405f5f0c>] (ci_hdrc_usb2_probe+0x130/0x180) [<405f5f0c>] (ci_hdrc_usb2_probe) from [<40507e60>] (platform_probe+0x58/0xa8) [<40507e60>] (platform_probe) from [<4050584c>] (really_probe+0x1d8/0x418) [<4050584c>] (really_probe) from [<40505c44>] (__driver_probe_device+0x1b8/0x1f0) [<40505c44>] (__driver_probe_device) from [<40505ca0>] (driver_probe_device+0x24/0xa4) [<40505ca0>] (driver_probe_device) from [<405060b0>] (__device_attach_driver+0xbc/0x110) [<405060b0>] (__device_attach_driver) from [<40503aa4>] (bus_for_each_drv+0xa8/0xbc) [<40503aa4>] (bus_for_each_drv) from [<40505ea8>] (__device_attach+0xc4/0x164) [<40505ea8>] (__device_attach) from [<405047e0>] (bus_probe_device+0x28/0x84) [<405047e0>] (bus_probe_device) from [<405022b8>] (device_add+0x590/0x7c4) I will keep poking it today to see if I can figure out more of what is actually going wrong, but if any of you guys had any thoughts/suggestions or if you want me to provide any additional info all of those would be greatly appreciated. Thanks, Charles