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Date:	Sat, 28 Dec 2013 07:24:20 +0100
From:	Markus Rechberger <mrechberger@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [BUGREPORT] Linux USB 3.0

just received following log snippset:

Dec 27 23:23:50 solist kernel: [   36.118245] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.177695] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.217966] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.277473] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.317753] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.377242] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.417514] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.477000] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.517279] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.576761] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.617074] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.676581] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.716852] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.776340] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:50 solist kernel: [   36.816589] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr
Dec 27 23:23:51 solist kernel: [   36.876117] xhci_hcd 0000:00:14.0:
ERROR Transfer event TRB DMA ptr


the previous bug report of that user:
https://bugzilla.kernel.org/show_bug.cgi?id=65021 xhci: complete USB freeze

On Fri, Dec 27, 2013 at 8:59 PM, Markus Rechberger
<mrechberger@...il.com> wrote:
> Seems like DH87RL was working with 3.2.0-55-generic-pae unfortunately
> we don't have such a board for testing and customer patience is
> limited to bisect the kernel.
>
> Does anyone have a clue what modification could have killed USB 3.0
> support within those releases?
> It does not seem to be SG support.
>
> On Fri, Dec 27, 2013 at 6:18 PM, Markus Rechberger
> <mrechberger@...il.com> wrote:
>> I just got another USB 3.0 bugreport, the entire system crashed. That
>> particular customer already filed a bugreport in November 2013 that
>> his system is in a bad state when using some USB 2.0 media devices
>> which even have opensource drivers built into the kernel.
>>
>> USB 3.0 support with Linux seems to be a disaster with Linux 3.6.12.
>> The affected board is an Intel DH87RL board.
>>
>> On Wed, Dec 25, 2013 at 8:18 AM, Markus Rechberger
>> <mrechberger@...il.com> wrote:
>>> A customer using a device with USBDEVFS is reporting following
>>> backtrace (it seems to be a rather generic issue related to linux usb
>>> 3.0 in general):
>>> According to him this problem is reproducible as soon as he starts the
>>> data transfer, is there anything known about that?
>>>
>>> He is using 3.12.0-031200-generic
>>>
>>>
>>> Dec 24 14:22:39 homenas kernel: [ 1469.818460] xhci_hcd 0000:0f:00.0:
>>> ERROR Transfer event TRB DMA ptr not part of current TD
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] xhci_hcd 0000:0f:00.0:
>>> ERROR Transfer event TRB DMA ptr not part of current TD
>>>
>>> Dec 24 14:30:39 homenas kernel: last message repeated 16 times
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] xhci_hcd 0000:0f:00.0:
>>> WARN Successful completion on short TX
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] xhci_hcd 0000:0f:00.0:
>>> WARN Successful completion on short TX
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] xhci_hcd 0000:0f:00.0:
>>> URB transfer length is wrong, xHC issue? req. len = 46080, act. len =
>>> 1382400
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] BUG: unable to handle
>>> kernel NULL pointer dereference at 0000000000000004
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] IP: [] finish_td+0x13f/0x250
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] PGD 0
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] Oops: 0000 [#1] SMP
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] Modules linked in:
>>> videodev pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF)
>>> vboxdrv(OF) dm_crypt snd_hda_codec_ca0132 snd_hda_intel snd_hda_codec
>>> snd_hwdep snd_pcm snd_seq_midi dm_multipath psmouse scsi_dh
>>> snd_rawmidi serio_raw sb_edac snd_seq_midi_event edac_core snd_seq
>>> snd_timer snd_seq_device lpc_ich snd bnep rfcomm soundcore
>>> snd_page_alloc bluetooth mei_me mei mac_hid ppdev nfsd w83627ehf
>>> hwmon_vid nfs_acl auth_rpcgss coretemp nfs fscache lockd lp parport
>>> sunrpc raid10 raid456 async_pq async_xor async_memcpy
>>> async_raid6_recov async_tx raid0 multipath linear btrfs raid6_pq xor
>>> libcrc32c osst st raid1 tg3 mptsas firewire_ohci ptp mxm_wmi
>>> firewire_core ahci mptscsih pps_core crc_itu_t libahci mpt2sas mptbase
>>> wmi scsi_transport_sas raid_class [last unloaded: vmnet]
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] CPU: 0 PID: 0 Comm:
>>> swapper/0 Tainted: GF                 O 3.12.0-031200-generic
>>> #201311031935
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] Hardware name: To Be
>>> Filled By O.E.M. To Be Filled By O.E.M./X79 Extreme9, BIOS P3.30
>>> 01/28/2013
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] task: ffffffff81c144a0
>>> ti: ffffffff81c00000 task.ti: ffffffff81c00000
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] RIP: 0010:[]  []
>>> finish_td+0x13f/0x250
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] RSP:
>>> 0018:ffff88102fc03ca8  EFLAGS: 00010046
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] RAX: ffff880f865d2b10
>>> RBX: ffff880f865d2b00 RCX: 0000000000000006
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] RDX: ffff880f865d2b10
>>> RSI: 0000000000000007 RDI: 0000000000000046
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] RBP: ffff88102fc03d08
>>> R08: 000000000000000a R09: 0000000000000000
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] R10: 00000000000006fd
>>> R11: 00000000000006fc R12: ffff880fd2de0000
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] R13: ffff880fd32b1780
>>> R14: 0000000000000000 R15: ffff880fd5c5f000
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] FS:
>>> 0000000000000000(0000) GS:ffff88102fc00000(0000)
>>> knlGS:0000000000000000
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] CS:  0010 DS: 0000 ES:
>>> 0000 CR0: 0000000080050033
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] CR2: 0000000000000004
>>> CR3: 0000000001c0d000 CR4: 00000000000407f0
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] Stack:
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  ffff88102fc03ce8
>>> ffff880fd0bc8000 ffff88102fc03d00 ffff880fd268d1a0
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  ffff88102fc03df4
>>> 0000000100000002 ffff880fd32b1780 ffff880f865d2b00
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  ffff880fd268d1a0
>>> ffff880fd5c5f000 ffff880fd2de0000 ffff880fd2c497b0
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450] Call Trace:
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  []
>>> process_bulk_intr_td+0x116/0x2d0
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  [] handle_tx_event+0x656/0xb50
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  [] ? __queue_work+0x3b0/0x3c0
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  [] ? call_timer_fn+0x46/0x160
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  [] xhci_handle_event+0x1db/0x2a0
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1469.822450]  [] ?
>>> run_timer_softirq+0x1b2/0x300
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1470.312076]  [] xhci_irq+0x120/0x1f0
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1470.312076]  [] xhci_msi_irq+0x11/0x20
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1470.312076]  []
>>> handle_irq_event_percpu+0x5d/0x210
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1470.312076]  [] handle_irq_event+0x48/0x70
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1470.312076]  [] ?
>>> native_apic_msr_eoi_write+0x14/0x20
>>>
>>> Dec 24 14:30:39 homenas kernel: [ 1470.312076]  [] handle_edge_irq+0x77/0x110
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