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Message-ID: <20060819194537.GE25402@redhat.com> Date: Sat, 19 Aug 2006 15:45:37 -0400 From: Dave Jones <davej@...hat.com> To: Linux Kernel <linux-kernel@...r.kernel.org> Subject: plugging usb disk gets lockdep warning I plugged in my mp3 player, and this happened.. usb 5-7.3: new high speed USB device using ehci_hcd and address 6 PM: Adding info for usb:5-7.3 PM: Adding info for No Bus:usbdev5.6_ep00 usb 5-7.3: configuration #2 chosen from 1 choice PM: Adding info for usb:5-7.3:2.0 scsi4 : SCSI emulation for USB Mass Storage devices PM: Adding info for No Bus:host4 usb-storage: device found at 6 usb-storage: waiting for device to settle before scanning PM: Adding info for No Bus:usbdev5.6_ep82 PM: Adding info for No Bus:usbdev5.6_ep01 PM: Adding info for No Bus:usbdev5.6_ep83 PM: Adding info for No Bus:target4:0:0 usb 5-7.3: reset high speed USB device using ehci_hcd and address 6 PM: Removing info for No Bus:usbdev5.6_ep82 PM: Removing info for No Bus:usbdev5.6_ep01 PM: Removing info for No Bus:usbdev5.6_ep83 PM: Adding info for No Bus:usbdev5.6_ep82 PM: Adding info for No Bus:usbdev5.6_ep01 PM: Adding info for No Bus:usbdev5.6_ep83 INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. Call Trace: [<ffffffff8026e8fd>] show_trace+0xae/0x319 [<ffffffff8026eb7d>] dump_stack+0x15/0x17 [<ffffffff802a826a>] __lock_acquire+0x135/0xa64 [<ffffffff802a913c>] lock_acquire+0x4b/0x69 [<ffffffff80267b3f>] _spin_lock_irq+0x2b/0x38 [<ffffffff802655b3>] wait_for_completion_timeout+0x35/0xd7 [<ffffffff8803654c>] :scsi_mod:scsi_send_eh_cmnd+0x238/0x3d3 [<ffffffff88036767>] :scsi_mod:scsi_eh_tur+0x3d/0x91 [<ffffffff88037009>] :scsi_mod:scsi_error_handler+0x400/0xa8c [<ffffffff802352ea>] kthread+0x100/0x136 [<ffffffff802614de>] child_rip+0x8/0x12 DWARF2 unwinder stuck at child_rip+0x8/0x12 Leftover inexact backtrace: [<ffffffff80267bb2>] _spin_unlock_irq+0x2b/0x31 [<ffffffff80260b1c>] restore_args+0x0/0x30 [<ffffffff8024fa61>] run_workqueue+0x19/0xfa [<ffffffff802351ea>] kthread+0x0/0x136 [<ffffffff802614d6>] child_rip+0x0/0x12 usb 5-7.3: reset high speed USB device using ehci_hcd and address 6 PM: Removing info for No Bus:usbdev5.6_ep82 PM: Removing info for No Bus:usbdev5.6_ep01 PM: Removing info for No Bus:usbdev5.6_ep83 PM: Adding info for No Bus:usbdev5.6_ep82 PM: Adding info for No Bus:usbdev5.6_ep01 PM: Adding info for No Bus:usbdev5.6_ep83 usb 5-7.3: reset high speed USB device using ehci_hcd and address 6 PM: Removing info for No Bus:usbdev5.6_ep82 PM: Removing info for No Bus:usbdev5.6_ep01 PM: Removing info for No Bus:usbdev5.6_ep83 PM: Adding info for No Bus:usbdev5.6_ep82 PM: Adding info for No Bus:usbdev5.6_ep01 PM: Adding info for No Bus:usbdev5.6_ep83 usb 5-7.3: reset high speed USB device using ehci_hcd and address 6 PM: Removing info for No Bus:usbdev5.6_ep82 PM: Removing info for No Bus:usbdev5.6_ep01 PM: Removing info for No Bus:usbdev5.6_ep83 PM: Adding info for No Bus:usbdev5.6_ep82 PM: Adding info for No Bus:usbdev5.6_ep01 PM: Adding info for No Bus:usbdev5.6_ep83 scsi 4:0:0:0: scsi: Device offlined - not ready after error recovery PM: Removing info for No Bus:target4:0:0 PM: Adding info for No Bus:target4:0:1 PM: Removing info for No Bus:target4:0:1 PM: Adding info for No Bus:target4:0:2 PM: Removing info for No Bus:target4:0:2 PM: Adding info for No Bus:target4:0:3 PM: Removing info for No Bus:target4:0:3 PM: Adding info for No Bus:target4:0:4 PM: Removing info for No Bus:target4:0:4 PM: Adding info for No Bus:target4:0:5 PM: Removing info for No Bus:target4:0:5 PM: Adding info for No Bus:target4:0:6 PM: Removing info for No Bus:target4:0:6 PM: Adding info for No Bus:target4:0:7 PM: Removing info for No Bus:target4:0:7 usb-storage: device scan complete -- http://www.codemonkey.org.uk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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