On Sun, 8 Jun 2014, Benjamin Herrenschmidt wrote:
> Looking at the code a bit more ... that xhci_shutdown() worries me.
>
> It basically just whacks xhci_halt() and optionally reset() but nothing
> is done that I can see to ensure that we aren't concurrently
> doing things like queuing URBs, poll
On Sat, 2014-06-07 at 11:40 -0400, Alan Stern wrote:
> The current xhci-hcd driver includes a quirk flag (XHCI_SPURIOS_WAKEUP)
> that causes the shutdown routine to reset the controller. It wasn't
> meant for fixing kexec problems, but I bet you could use it for that
> purpose.
>
> In additio
On Sat, 2014-06-07 at 11:40 -0400, Alan Stern wrote:
> The current xhci-hcd driver includes a quirk flag (XHCI_SPURIOS_WAKEUP)
> that causes the shutdown routine to reset the controller. It wasn't
> meant for fixing kexec problems, but I bet you could use it for that
> purpose.
>
> In addition
[Added Mathias to CC: list]
On Sat, 7 Jun 2014, Benjamin Herrenschmidt wrote:
> I'm trying to kexec from our OPAL FW bootloader (3.10.23 based) to a
> fedora 3.14.3 on a new machine and am still seeing the above.
>
> A reset brings the chip back.
>
> Do we have any resolution here ? It looks l
On Tue, 2014-04-15 at 20:54 +0200, Stefani Seibold wrote:
> > > > > [1.170029] xhci_hcd 0001:03:00.0: xHCI Host Controller
> > > > > [1.175306] xhci_hcd 0001:03:00.0: new USB bus registered,
> > > > > assigned bus number 1
> > > > > [1.212561] xhci_hcd 0001:03:00.0: Hos
On Tue, 15 Apr 2014, Stefani Seibold wrote:
> > So two devices failed to initialize after the drivers were rebound: 3-4
> > and 2-2. We know that 3-4 was the mass-storage device, but I can't
> > tell from this log what 2-2 was.
> >
>
> 2-2 is a custom HID device which handles the front pane
Am Dienstag, den 15.04.2014, 15:14 -0400 schrieb Alan Stern:
> On Tue, 15 Apr 2014, Stefani Seibold wrote:
>
> > > > usbcore: registered new interface driver USB-SATA-storage
> > > > USB SATA Mass Storage support registered.
> > > > usb 1-4: new high-speed USB device number 4 using ehci-pci
> > >
Am Dienstag, den 15.04.2014, 15:02 -0400 schrieb Alan Stern:
> On Tue, 15 Apr 2014, Stefani Seibold wrote:
>
> > I did a unbind and bind of the ehci-pci and ohci-pci, after this i got
> > the following dmesg log:
> >
> > ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> > ehci-pci: EHC
On Tue, 15 Apr 2014, Stefani Seibold wrote:
> > > usbcore: registered new interface driver USB-SATA-storage
> > > USB SATA Mass Storage support registered.
> > > usb 1-4: new high-speed USB device number 4 using ehci-pci
> > > : ports detected
> >
> > What driver is this? I've never heard of
Am Dienstag, den 15.04.2014, 15:05 -0400 schrieb Alan Stern:
> On Tue, 15 Apr 2014, Stefani Seibold wrote:
>
> > > One other thing you can try is to increase the reset timeout in
> > > drivers/usb/host/ehci-hub.c. This is under the USB_PORT_FEAT_RESET
> > > case in ehci_hub_control(), around li
Am Dienstag, den 15.04.2014, 15:02 -0400 schrieb Alan Stern:
> On Tue, 15 Apr 2014, Stefani Seibold wrote:
>
> > I did a unbind and bind of the ehci-pci and ohci-pci, after this i got
> > the following dmesg log:
> >
> > ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> > ehci-pci: EHC
On Tue, 15 Apr 2014, Stefani Seibold wrote:
> > One other thing you can try is to increase the reset timeout in
> > drivers/usb/host/ehci-hub.c. This is under the USB_PORT_FEAT_RESET
> > case in ehci_hub_control(), around line 1225:
> >
> > /*
> >
On Tue, 15 Apr 2014, Stefani Seibold wrote:
> I did a unbind and bind of the ehci-pci and ohci-pci, after this i got
> the following dmesg log:
>
> ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> ehci-pci: EHCI PCI platform driver
> ehci-pci :00:17.2: EHCI Host Controller
> ehci-
Am Dienstag, den 15.04.2014, 15:49 -0300 schrieb Thadeu Lima de Souza
Cascardo:
> On Tue, Apr 15, 2014 at 08:42:58PM +0200, Stefani Seibold wrote:
> > Am Dienstag, den 15.04.2014, 15:33 -0300 schrieb Thadeu Lima de Souza
> > Cascardo:
> > > On Tue, Apr 15, 2014 at 05:00:28PM +0200, stef...@seibold.
On Tue, Apr 15, 2014 at 08:42:58PM +0200, Stefani Seibold wrote:
> Am Dienstag, den 15.04.2014, 15:33 -0300 schrieb Thadeu Lima de Souza
> Cascardo:
> > On Tue, Apr 15, 2014 at 05:00:28PM +0200, stef...@seibold.net wrote:
> > >
> > > Zitat von Thadeu Lima de Souza Cascardo :
> > >
> > > >On Tue,
Am Dienstag, den 15.04.2014, 15:33 -0300 schrieb Thadeu Lima de Souza
Cascardo:
> On Tue, Apr 15, 2014 at 05:00:28PM +0200, stef...@seibold.net wrote:
> >
> > Zitat von Thadeu Lima de Souza Cascardo :
> >
> > >On Tue, Apr 15, 2014 at 12:04:17PM +0200, stef...@seibold.net wrote:
> > >>
> > >>Zitat
On Tue, Apr 15, 2014 at 05:00:28PM +0200, stef...@seibold.net wrote:
>
> Zitat von Thadeu Lima de Souza Cascardo :
>
> >On Tue, Apr 15, 2014 at 12:04:17PM +0200, stef...@seibold.net wrote:
> >>
> >>Zitat von Thadeu Lima de Souza Cascardo :
> >>
> >>>On Mon, Apr 14, 2014 at 05:44:58PM +0200, stef.
Am Montag, den 14.04.2014, 13:58 -0400 schrieb Alan Stern:
> On Mon, 14 Apr 2014, Stefani Seibold wrote:
>
> > > > An other PowerPC device which is nearly eactly the same HW but without
> > > > this USB HUB works perfectly.
> > >
> > > Maybe you should replace that hub with a different brand.
>
Am Montag, den 14.04.2014, 12:27 -0400 schrieb Alan Stern:
> On Mon, 14 Apr 2014 stef...@seibold.net wrote:
>
> > Zitat von Alan Stern :
> >
> >
> > >> <6>[ 167.936921] usb 2-2.1: new full-speed USB device number 3
> > >> using ohci-pci
> > >> <6>[ 168.067890] usb 2-2.1: New USB device foun
Zitat von Thadeu Lima de Souza Cascardo :
On Tue, Apr 15, 2014 at 12:04:17PM +0200, stef...@seibold.net wrote:
Zitat von Thadeu Lima de Souza Cascardo :
>On Mon, Apr 14, 2014 at 05:44:58PM +0200, stef...@seibold.net wrote:
>>
>>Zitat von Benjamin Herrenschmidt :
>>
>>>I don't know about EHCI
On Tue, Apr 15, 2014 at 12:04:17PM +0200, stef...@seibold.net wrote:
>
> Zitat von Thadeu Lima de Souza Cascardo :
>
> >On Mon, Apr 14, 2014 at 05:44:58PM +0200, stef...@seibold.net wrote:
> >>
> >>Zitat von Benjamin Herrenschmidt :
> >>
> >>>I don't know about EHCI specifically but this is a kno
Zitat von Thadeu Lima de Souza Cascardo :
On Mon, Apr 14, 2014 at 05:44:58PM +0200, stef...@seibold.net wrote:
Zitat von Benjamin Herrenschmidt :
>I don't know about EHCI specifically but this is a known issue with
>XHCI, I observe similar issues on other powerpc platforms (servers)
>and thi
On Mon, Apr 14, 2014 at 05:44:58PM +0200, stef...@seibold.net wrote:
>
> Zitat von Benjamin Herrenschmidt :
>
> >On Sun, 2014-04-13 at 21:22 +0200, Stefani Seibold wrote:
> >>When executing a kexec kernel on a PowerPC board the new started kernel
> >>will not find already enumerated USB devices d
On Mon, 14 Apr 2014, Stefani Seibold wrote:
> > > An other PowerPC device which is nearly eactly the same HW but without
> > > this USB HUB works perfectly.
> >
> > Maybe you should replace that hub with a different brand.
> >
>
> Thats not possible, because the Hub is soldered on the board.
Am Montag, den 14.04.2014, 12:27 -0400 schrieb Alan Stern:
> On Mon, 14 Apr 2014 stef...@seibold.net wrote:
>
> > Zitat von Alan Stern :
> >
> >
> > >> <6>[ 167.936921] usb 2-2.1: new full-speed USB device number 3
> > >> using ohci-pci
> > >> <6>[ 168.067890] usb 2-2.1: New USB device found
On Mon, 14 Apr 2014 stef...@seibold.net wrote:
> Zitat von Alan Stern :
>
>
> >> <6>[ 167.936921] usb 2-2.1: new full-speed USB device number 3
> >> using ohci-pci
> >> <6>[ 168.067890] usb 2-2.1: New USB device found, idVendor=076b,
> >> idProduct=a021
> >> <6>[ 168.074871] usb 2-2.1: New
Zitat von Benjamin Herrenschmidt :
On Sun, 2014-04-13 at 21:22 +0200, Stefani Seibold wrote:
When executing a kexec kernel on a PowerPC board the new started kernel
will not find already enumerated USB devices due a missing reset on the
USB bus.
As a work around a
echo 1 >/sys/bus/pci/driver
Zitat von Alan Stern :
<6>[ 167.936921] usb 2-2.1: new full-speed USB device number 3
using ohci-pci
<6>[ 168.067890] usb 2-2.1: New USB device found, idVendor=076b,
idProduct=a021
<6>[ 168.074871] usb 2-2.1: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
<6>[ 168.082226] usb 2
On Mon, 14 Apr 2014 stef...@seibold.net wrote:
>
> From Alan Stern :
>
> > On Sun, 13 Apr 2014, Stefani Seibold wrote:
> >
> >> When executing a kexec kernel on a PowerPC board the new started kernel
> >> will not find already enumerated USB devices due a missing reset on the
> >> USB bus.
> >
From Alan Stern :
On Sun, 13 Apr 2014, Stefani Seibold wrote:
When executing a kexec kernel on a PowerPC board the new started kernel
will not find already enumerated USB devices due a missing reset on the
USB bus.
How do you know the problem is caused by a missing reset?
A "echo 1 >/sys
On Sun, 2014-04-13 at 21:22 +0200, Stefani Seibold wrote:
> When executing a kexec kernel on a PowerPC board the new started kernel
> will not find already enumerated USB devices due a missing reset on the
> USB bus.
>
> As a work around a
>
> echo 1 >/sys/bus/pci/drivers/[ex]hci-pci/BUS-ADDRESS-
On Sun, 13 Apr 2014, Stefani Seibold wrote:
> When executing a kexec kernel on a PowerPC board the new started kernel
> will not find already enumerated USB devices due a missing reset on the
> USB bus.
How do you know the problem is caused by a missing reset?
Can you post the dmesg log from the
When executing a kexec kernel on a PowerPC board the new started kernel
will not find already enumerated USB devices due a missing reset on the
USB bus.
As a work around a
echo 1 >/sys/bus/pci/drivers/[ex]hci-pci/BUS-ADDRESS-OF-THE-HCD/reset
will solve this. But this is far from beauty.
My late
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