From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752004Ab0LQI0b (ORCPT ); Fri, 17 Dec 2010 03:26:31 -0500 Received: from tx2ehsobe001.messaging.microsoft.com ([65.55.88.11]:16345 "EHLO TX2EHSOBE002.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751413Ab0LQI03 convert rfc822-to-8bit (ORCPT ); Fri, 17 Dec 2010 03:26:29 -0500 X-SpamScore: -14 X-BigFish: VPS-14(z6c9Mz1432N4015Lzz1202hzzz32i668h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null);UIP:(null);IPVD:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-WSS-ID: 0LDKCRO-02-L2K-02 X-M-MSG: X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-Class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: Scary warnings from xhci_hcd on rmmod and during shutdown/suspend/resume Date: Fri, 17 Dec 2010 16:26:09 +0800 Message-ID: <2DEEA3AB13739D45A22ADDB5086AEA0BC080D3@sshaexmb1.amd.com> In-Reply-To: <201012170039.16185.rjw@sisk.pl> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Scary warnings from xhci_hcd on rmmod and during shutdown/suspend/resume Thread-Index: AcudeqQOQ7pIDIkUSS+CrA7cCg1jQAASPe1g References: <201012170039.16185.rjw@sisk.pl> From: "Xu, Andiry" To: "Rafael J. Wysocki" , Sarah Sharp CC: , , Greg Kroah-Hartman , Alan Stern , Linux-pm mailing list , Matthew Garrett X-OriginalArrivalTime: 17 Dec 2010 08:26:13.0675 (UTC) FILETIME=[11217FB0:01CB9DC4] X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > and during shutdown (I believe the warnings are the same or analogous to > the > above). > > I tested with the attached patch from Andiry applied and I got the > following > BUG during resume: Does this bug occurs without the synchronize irq patch? Seems the rmmod, shutdown and resume bugs are caused by xhci_cleanup_msix(). > > [ 91.703778] sd 0:0:0:0: [sda] Starting disk > [ 91.704054] sd 2:0:0:0: [sdb] Starting disk > [ 91.703680] xhci_hcd 0000:04:00.0: Host controller not halted, aborting > reset. > [ 91.703680] BUG: sleeping function called from invalid context at > /home/rafael/src/linux-2.6/kernel/mutex.c:278 > [ 91.703680] in_atomic(): 1, irqs_disabled(): 1, pid: 1234, name: > kworker/u:6 > [ 91.703680] INFO: lockdep is turned off. > [ 91.703680] irq event stamp: 24060 > [ 91.703680] hardirqs last enabled at (24059): [] > rcu_note_context_switch+0xa1/0x1c0 > [ 91.703680] hardirqs last disabled at (24060): [] > _raw_spin_lock_irq+0x12/0x50 > [ 91.703680] softirqs last enabled at (20026): [] > __do_softirq+0x11e/0x160 > [ 91.703680] softirqs last disabled at (20011): [] > call_softirq+0x1c/0x30 > [ 91.703680] Pid: 1234, comm: kworker/u:6 Tainted: G W 2.6.37- > rc6+ #12 > [ 91.703680] Call Trace: > [ 91.703680] [] ? print_irqtrace_events+0xd0/0xe0 > [ 91.703680] [] __might_sleep+0x103/0x130 > [ 91.703680] [] mutex_lock_nested+0x33/0x380 > [ 91.703680] [] ? > _raw_spin_unlock_irqrestore+0x67/0x70 > [ 91.703680] [] ? dynamic_irq_cleanup+0xde/0x100 > [ 91.703680] [] irq_free_descs+0x58/0x90 > [ 91.703680] [] destroy_irq+0x78/0x90 > [ 91.703680] [] native_teardown_msi_irq+0x9/0x10 > [ 91.703680] [] default_teardown_msi_irqs+0x70/0xa0 > [ 91.703680] [] free_msi_irqs+0xa1/0x110 > [ 91.703680] [] pci_disable_msix+0x3d/0x50 > [ 91.703680] [] xhci_cleanup_msix+0x39/0x80 [xhci_hcd] > [ 91.703680] [] xhci_resume+0x1ac/0x250 [xhci_hcd] > [ 91.703680] [] xhci_pci_resume+0x14/0x20 [xhci_hcd] > [ 91.703680] [] resume_common+0xbb/0x140 > [ 91.703680] [] hcd_pci_restore+0xe/0x10 > [ 91.703680] [] pci_pm_restore+0x63/0xb0 > [ 91.703680] [] pm_op+0x19d/0x1c0 > [ 91.703680] [] device_resume+0x94/0x220 > [ 91.703680] [] async_resume+0x1c/0x50 > [ 91.703680] [] async_run_entry_fn+0x86/0x160 > [ 91.703680] [] process_one_work+0x1a2/0x450 > [ 91.703680] [] ? process_one_work+0x144/0x450 > [ 91.703680] [] ? do_raw_spin_lock+0x104/0x170 > [ 91.703680] [] ? async_run_entry_fn+0x0/0x160 > [ 91.703680] [] worker_thread+0x162/0x340 > [ 91.703680] [] ? worker_thread+0x0/0x340 > [ 91.703680] [] kthread+0x96/0xa0 > [ 91.703680] [] kernel_thread_helper+0x4/0x10 > [ 91.703680] [] ? finish_task_switch+0x7b/0xe0 > [ 91.703680] [] ? restore_args+0x0/0x30 > [ 91.703680] [] ? kthread+0x0/0xa0 > [ 91.703680] [] ? kernel_thread_helper+0x0/0x10 > [ 91.706248] xhci_hcd 0000:04:00.0: irq 81 for MSI/MSI-X > [ 91.706251] xhci_hcd 0000:04:00.0: irq 82 for MSI/MSI-X > [ 91.706253] xhci_hcd 0000:04:00.0: irq 83 for MSI/MSI-X > [ 91.706256] xhci_hcd 0000:04:00.0: irq 84 for MSI/MSI-X > [ 91.706258] xhci_hcd 0000:04:00.0: irq 85 for MSI/MSI-X > [ 91.706260] xhci_hcd 0000:04:00.0: irq 86 for MSI/MSI-X > [ 91.706262] xhci_hcd 0000:04:00.0: irq 87 for MSI/MSI-X > > The issues appear to be 100% reproducible. > I'm not able to reproduce the issue. Can you specify your kernel version and attach your .config? Thanks, Andiry