Re: usb: chipidea: hdc: kernel panic during shutdown
On Fri, Sep 09, 2016 at 04:35:02PM +0200, Stefan Wahren wrote:
> Am 05.09.2016 um 04:51 schrieb Peter Chen:
> > On Fri, Sep 02, 2016 at 08:20:35PM +0200, Stefan Wahren wrote:
> >> Hi Peter,
> >>
> >>> Stefan Wahren hat am 25. August 2016 um 19:17
> >>> geschrieben:
> >>>
> >>>
> >>> Hi,
> >>>
> Peter Chen hat am 25. August 2016 um 11:16
> geschrieben:
>
>
> On Thu, Aug 25, 2016 at 08:27:03AM +0200, Stefan Wahren wrote:
> > Am 25.08.2016 um 08:44 schrieb Peter Chen:
> >> On Thu, Aug 25, 2016 at 07:06:12AM +0200, Stefan Wahren wrote:
> >>> Hi Alan,
> >>>
> >>> i tried the following patch:
> >>> --- a/drivers/usb/chipidea/host.c
> >>> +++ b/drivers/usb/chipidea/host.c
> >>> @@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
> >>>
> >>> if (hcd) {
> >>> usb_remove_hcd(hcd);
> >>> + ci_role_stop(ci);
> >>> + synchronize_irq(ci->irq);
> >> Would you please just add below line to see if this problem can be
> >> fixed?
> >> + ci->role = CI_ROLE_END;
> >>
> >> When ci->role is CI_ROLE_END, neither host nor device interrupt handler
> >> will run.
> > I would add this before synchronize_irq() as Alan suggested.
> >>> i replaced my ci_role_stop(ci) with ci->role = CI_ROLE_END and the panic
> >>> disappear:
> >>>
> >>> [ 114.98] ci_hdrc ci_hdrc.0: remove, state 1
> >>> [ 114.99] usb usb1: USB disconnect, device number 1
> >>> [ 115.00] usb 1-1: USB disconnect, device number 2
> >>> [ 115.00] usb 1-1.1: USB disconnect, device number 3
> >>> [ 115.03] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> >>> usb-ci_hdrc.0-1.1,
> >>> smsc95xx USB 2.0 Ethernet
> >>> [ 115.22] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> >>> [ 115.23] otgsc:0x4e20, usbsts:0x0
> >>> [ 115.24] reboot: System halted
> >> do you need more information?
> >>
> > I would like to know which interrupt is triggered at that time?
>
> So the added debug messages didn't help to find the interrupt source (
> otgsc:0x4e20, usbsts:0x0 ) ?
>
> Any other suggestions ?
>
> At least i would like to create a patch with Alan's suggestion before
> 4.8 is final.
>
Ok, please do it.
--
Best Regards,
Peter Chen
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
Am 05.09.2016 um 04:51 schrieb Peter Chen:
> On Fri, Sep 02, 2016 at 08:20:35PM +0200, Stefan Wahren wrote:
>> Hi Peter,
>>
>>> Stefan Wahren hat am 25. August 2016 um 19:17
>>> geschrieben:
>>>
>>>
>>> Hi,
>>>
Peter Chen hat am 25. August 2016 um 11:16
geschrieben:
On Thu, Aug 25, 2016 at 08:27:03AM +0200, Stefan Wahren wrote:
> Am 25.08.2016 um 08:44 schrieb Peter Chen:
>> On Thu, Aug 25, 2016 at 07:06:12AM +0200, Stefan Wahren wrote:
>>> Hi Alan,
>>>
>>> i tried the following patch:
>>> --- a/drivers/usb/chipidea/host.c
>>> +++ b/drivers/usb/chipidea/host.c
>>> @@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
>>>
>>> if (hcd) {
>>> usb_remove_hcd(hcd);
>>> + ci_role_stop(ci);
>>> + synchronize_irq(ci->irq);
>> Would you please just add below line to see if this problem can be
>> fixed?
>> +ci->role = CI_ROLE_END;
>>
>> When ci->role is CI_ROLE_END, neither host nor device interrupt handler
>> will run.
> I would add this before synchronize_irq() as Alan suggested.
>>> i replaced my ci_role_stop(ci) with ci->role = CI_ROLE_END and the panic
>>> disappear:
>>>
>>> [ 114.98] ci_hdrc ci_hdrc.0: remove, state 1
>>> [ 114.99] usb usb1: USB disconnect, device number 1
>>> [ 115.00] usb 1-1: USB disconnect, device number 2
>>> [ 115.00] usb 1-1.1: USB disconnect, device number 3
>>> [ 115.03] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
>>> usb-ci_hdrc.0-1.1,
>>> smsc95xx USB 2.0 Ethernet
>>> [ 115.22] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
>>> [ 115.23] otgsc:0x4e20, usbsts:0x0
>>> [ 115.24] reboot: System halted
>> do you need more information?
>>
> I would like to know which interrupt is triggered at that time?
So the added debug messages didn't help to find the interrupt source (
otgsc:0x4e20, usbsts:0x0 ) ?
Any other suggestions ?
At least i would like to create a patch with Alan's suggestion before
4.8 is final.
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
On Fri, Sep 02, 2016 at 08:20:35PM +0200, Stefan Wahren wrote:
> Hi Peter,
>
> > Stefan Wahren hat am 25. August 2016 um 19:17
> > geschrieben:
> >
> >
> > Hi,
> >
> > > Peter Chen hat am 25. August 2016 um 11:16
> > > geschrieben:
> > >
> > >
> > > On Thu, Aug 25, 2016 at 08:27:03AM +0200, Stefan Wahren wrote:
> > > > Am 25.08.2016 um 08:44 schrieb Peter Chen:
> > > > > On Thu, Aug 25, 2016 at 07:06:12AM +0200, Stefan Wahren wrote:
> > > > >> Hi Alan,
> > > > >>
> > > > >> i tried the following patch:
> > > > >> --- a/drivers/usb/chipidea/host.c
> > > > >> +++ b/drivers/usb/chipidea/host.c
> > > > >> @@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
> > > > >>
> > > > >> if (hcd) {
> > > > >> usb_remove_hcd(hcd);
> > > > >> + ci_role_stop(ci);
> > > > >> + synchronize_irq(ci->irq);
> > > > > Would you please just add below line to see if this problem can be
> > > > > fixed?
> > > > > + ci->role = CI_ROLE_END;
> > > > >
> > > > > When ci->role is CI_ROLE_END, neither host nor device interrupt
> > > > > handler
> > > > > will run.
> > > >
> > > > I would add this before synchronize_irq() as Alan suggested.
> >
> > i replaced my ci_role_stop(ci) with ci->role = CI_ROLE_END and the panic
> > disappear:
> >
> > [ 114.98] ci_hdrc ci_hdrc.0: remove, state 1
> > [ 114.99] usb usb1: USB disconnect, device number 1
> > [ 115.00] usb 1-1: USB disconnect, device number 2
> > [ 115.00] usb 1-1.1: USB disconnect, device number 3
> > [ 115.03] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> > usb-ci_hdrc.0-1.1,
> > smsc95xx USB 2.0 Ethernet
> > [ 115.22] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> > [ 115.23] otgsc:0x4e20, usbsts:0x0
> > [ 115.24] reboot: System halted
>
> do you need more information?
>
I would like to know which interrupt is triggered at that time?
--
Best Regards,
Peter Chen
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
Hi Peter,
> Stefan Wahren hat am 25. August 2016 um 19:17
> geschrieben:
>
>
> Hi,
>
> > Peter Chen hat am 25. August 2016 um 11:16
> > geschrieben:
> >
> >
> > On Thu, Aug 25, 2016 at 08:27:03AM +0200, Stefan Wahren wrote:
> > > Am 25.08.2016 um 08:44 schrieb Peter Chen:
> > > > On Thu, Aug 25, 2016 at 07:06:12AM +0200, Stefan Wahren wrote:
> > > >> Hi Alan,
> > > >>
> > > >> i tried the following patch:
> > > >> --- a/drivers/usb/chipidea/host.c
> > > >> +++ b/drivers/usb/chipidea/host.c
> > > >> @@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
> > > >>
> > > >> if (hcd) {
> > > >> usb_remove_hcd(hcd);
> > > >> + ci_role_stop(ci);
> > > >> + synchronize_irq(ci->irq);
> > > > Would you please just add below line to see if this problem can be
> > > > fixed?
> > > > + ci->role = CI_ROLE_END;
> > > >
> > > > When ci->role is CI_ROLE_END, neither host nor device interrupt handler
> > > > will run.
> > >
> > > I would add this before synchronize_irq() as Alan suggested.
>
> i replaced my ci_role_stop(ci) with ci->role = CI_ROLE_END and the panic
> disappear:
>
> [ 114.98] ci_hdrc ci_hdrc.0: remove, state 1
> [ 114.99] usb usb1: USB disconnect, device number 1
> [ 115.00] usb 1-1: USB disconnect, device number 2
> [ 115.00] usb 1-1.1: USB disconnect, device number 3
> [ 115.03] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> usb-ci_hdrc.0-1.1,
> smsc95xx USB 2.0 Ethernet
> [ 115.22] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> [ 115.23] otgsc:0x4e20, usbsts:0x0
> [ 115.24] reboot: System halted
do you need more information?
What would be the next step?
Stefan
>
> Regards
> Stefan
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
Hi,
> Peter Chen hat am 25. August 2016 um 11:16
> geschrieben:
>
>
> On Thu, Aug 25, 2016 at 08:27:03AM +0200, Stefan Wahren wrote:
> > Am 25.08.2016 um 08:44 schrieb Peter Chen:
> > > On Thu, Aug 25, 2016 at 07:06:12AM +0200, Stefan Wahren wrote:
> > >> Hi Alan,
> > >>
> > >> i tried the following patch:
> > >> --- a/drivers/usb/chipidea/host.c
> > >> +++ b/drivers/usb/chipidea/host.c
> > >> @@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
> > >>
> > >> if (hcd) {
> > >> usb_remove_hcd(hcd);
> > >> + ci_role_stop(ci);
> > >> + synchronize_irq(ci->irq);
> > > Would you please just add below line to see if this problem can be
> > > fixed?
> > > + ci->role = CI_ROLE_END;
> > >
> > > When ci->role is CI_ROLE_END, neither host nor device interrupt handler
> > > will run.
> >
> > I would add this before synchronize_irq() as Alan suggested.
i replaced my ci_role_stop(ci) with ci->role = CI_ROLE_END and the panic
disappear:
[ 114.98] ci_hdrc ci_hdrc.0: remove, state 1
[ 114.99] usb usb1: USB disconnect, device number 1
[ 115.00] usb 1-1: USB disconnect, device number 2
[ 115.00] usb 1-1.1: USB disconnect, device number 3
[ 115.03] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx' usb-ci_hdrc.0-1.1,
smsc95xx USB 2.0 Ethernet
[ 115.22] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
[ 115.23] otgsc:0x4e20, usbsts:0x0
[ 115.24] reboot: System halted
Regards
Stefan
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
On Thu, Aug 25, 2016 at 08:27:03AM +0200, Stefan Wahren wrote:
> Am 25.08.2016 um 08:44 schrieb Peter Chen:
> > On Thu, Aug 25, 2016 at 07:06:12AM +0200, Stefan Wahren wrote:
> >> Hi Alan,
> >>
> >> i tried the following patch:
> >> --- a/drivers/usb/chipidea/host.c
> >> +++ b/drivers/usb/chipidea/host.c
> >> @@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
> >>
> >> if (hcd) {
> >> usb_remove_hcd(hcd);
> >> + ci_role_stop(ci);
> >> + synchronize_irq(ci->irq);
> > Would you please just add below line to see if this problem can be
> > fixed?
> > + ci->role = CI_ROLE_END;
> >
> > When ci->role is CI_ROLE_END, neither host nor device interrupt handler
> > will run.
>
> I would add this before synchronize_irq() as Alan suggested.
>
> >
> > What is your controller role? (dr_mode = host, peripheral or otg)?
>
> I'm using the unmodified arch/arm/boot/dts/imx23-olinuxino.dts so:
>
> dr_mode = host
It is so strange that there are interrupts after usb_remove_hcd is
called since the controller has already at reset status.
>
> > Besides, you would please add below line at core.c to show what
> > interrupt occurs at that time:
> >
> >
> > diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> > index b5c155b..e6b8a7e 100644
> > --- a/drivers/usb/chipidea/core.c
> > +++ b/drivers/usb/chipidea/core.c
> > @@ -596,6 +596,12 @@ static irqreturn_t ci_irq(int irq, void *data)
> > /* Handle device/host interrupt */
> > if (ci->role != CI_ROLE_END)
> > ret = ci_role(ci)->irq(ci);
> > + else
> > + dev_info(ci->dev, "otgsc:0x%x, usbsts:0x%x\n",
> > + hw_read_otgsc(ci, ~0),
> > + hw_read_intr_status(ci) &
> > hw_read_intr_enable(ci)
> > + );
> > +
> >
> > return ret;
> > }
> >
If possible, add above code to see which is suspicious interrupts.
--
Best Regards,
Peter Chen
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
Am 25.08.2016 um 08:44 schrieb Peter Chen:
> On Thu, Aug 25, 2016 at 07:06:12AM +0200, Stefan Wahren wrote:
>> Hi Alan,
>>
>> i tried the following patch:
>> --- a/drivers/usb/chipidea/host.c
>> +++ b/drivers/usb/chipidea/host.c
>> @@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
>>
>> if (hcd) {
>> usb_remove_hcd(hcd);
>> + ci_role_stop(ci);
>> + synchronize_irq(ci->irq);
> Would you please just add below line to see if this problem can be
> fixed?
> + ci->role = CI_ROLE_END;
>
> When ci->role is CI_ROLE_END, neither host nor device interrupt handler
> will run.
I would add this before synchronize_irq() as Alan suggested.
>
> What is your controller role? (dr_mode = host, peripheral or otg)?
I'm using the unmodified arch/arm/boot/dts/imx23-olinuxino.dts so:
dr_mode = host
> Besides, you would please add below line at core.c to show what
> interrupt occurs at that time:
>
>
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index b5c155b..e6b8a7e 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -596,6 +596,12 @@ static irqreturn_t ci_irq(int irq, void *data)
> /* Handle device/host interrupt */
> if (ci->role != CI_ROLE_END)
> ret = ci_role(ci)->irq(ci);
> + else
> + dev_info(ci->dev, "otgsc:0x%x, usbsts:0x%x\n",
> + hw_read_otgsc(ci, ~0),
> + hw_read_intr_status(ci) &
> hw_read_intr_enable(ci)
> + );
> +
>
> return ret;
> }
>
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
On Thu, Aug 25, 2016 at 07:06:12AM +0200, Stefan Wahren wrote:
> Hi Alan,
>
> > Alan Stern hat am 24. August 2016 um 20:55
> > geschrieben:
> >
> >
> > On Wed, 24 Aug 2016, Stefan Wahren wrote:
> >
> > > Hi,
> > >
> > > [add Li Jun to CC]
> > >
> > > > Alan Stern hat am 24. August 2016 um 15:45
> > > > geschrieben:
> > > >
> > > >
> > > > On Wed, 24 Aug 2016, Peter Chen wrote:
> > > >
> > > > > On Tue, Aug 23, 2016 at 09:17:02PM +0200, Stefan Wahren wrote:
> > > > > > Hi,
> > > > > >
> > > > > > i'm using a iMX233-OLinuXino board and the kernel panics during
> > > > > > shutdown
> > > > > > with
> > > > > > 4.8.0-rc2-next-20160819:
> > > > > >
> > > > > > [ 420.04] ci_hdrc ci_hdrc.0: remove, state 1
> > > > > > [ 420.05] usb usb1: USB disconnect, device number 1
> > > > > > [ 420.06] usb 1-1: USB disconnect, device number 2
> > > > > > [ 420.06] usb 1-1.1: USB disconnect, device number 3
> > > > > > [ 420.09] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> > > > > > usb-ci_hdrc.0-1.1,
> > > > > > smsc95xx USB 2.0 Ethernet
> > > > > > [ 420.29] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> > > > > > [ 420.30] Unable to handle kernel NULL pointer dereference at
> > > > > > virtual
> > > > > > address 0118
> > > > > > [ 420.30] pgd = c2ea4000
> > > > > > [ 420.30] [0118] *pgd=
> > > > > > [ 420.30] Internal error: Oops: 5 [#1] ARM
> > > > > > [ 420.30] Modules linked in:
> > > > > > [ 420.30] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted
> > > > > > 4.8.0-rc2-next-20160819 #1
> > > > > > [ 420.30] Hardware name: Freescale MXS (Device Tree)
> > > > > > [ 420.30] task: c349 task.stack: c348e000
> > > > > > [ 420.30] PC is at usb_hcd_irq+0x0/0x34
> > > > > > [ 420.30] LR is at ci_irq+0x58/0x12c
> > > >
> > > > > I am afraid the hcd is freed before the interrupt triggered. Would you
> > > > > please try below changes:
> > > > >
> > > > > diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> > > > > index 96ae695..61237a9 100644
> > > > > --- a/drivers/usb/chipidea/host.c
> > > > > +++ b/drivers/usb/chipidea/host.c
> > > > > @@ -103,7 +103,7 @@ static const struct ehci_driver_overrides
> > > > > ehci_ci_overrides = {
> > > > > static irqreturn_t host_irq(struct ci_hdrc *ci)
> > > > > {
> > > > > - return usb_hcd_irq(ci->irq, ci->hcd);
> > > > > + return ci->hcd ? usb_hcd_irq(ci->irq, ci->hcd) : IRQ_NONE;
> > > > > }
> > > >
> > > > This should not be needed. Instead, the driver should make sure that
> > > > the interrupt handler has been fully unregistered before the hcd is
> > > > deallocated.
> > >
> > > according to ci_hdrc_probe() from the chipidea core the IRQ seems to be
> > > requested via devm_request_irq() with the flag IRQF_SHARED.
> > >
> > > I have the suspicion the following commit triggers the kernel panic:
> > >
> > > 43a404577a93 ("usb: chipidea: host: set host to be null after hcd is
> > > freed")
> >
> > No, that's not the cause. Without that commit, you would try to access
> > deallocated memory instead of trying to dereference a NULL pointer, but
> > the kernel would still oops.
> >
> > Instead, how about setting ci->role to CI_ROLE_END and then calling
> > synchronize_irq(ci->irq) in host_stop(), before the usb_put_hcd()?
>
> i tried the following patch:
>
> --- a/drivers/usb/chipidea/host.c
> +++ b/drivers/usb/chipidea/host.c
> @@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
>
> if (hcd) {
> usb_remove_hcd(hcd);
> + ci_role_stop(ci);
> + synchronize_irq(ci->irq);
Would you please just add below line to see if this problem can be
fixed?
+ ci->role = CI_ROLE_END;
When ci->role is CI_ROLE_END, neither host nor device interrupt handler
will run.
What is your controller role? (dr_mode = host, peripheral or otg)?
Besides, you would please add below line at core.c to show what
interrupt occurs at that time:
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index b5c155b..e6b8a7e 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -596,6 +596,12 @@ static irqreturn_t ci_irq(int irq, void *data)
/* Handle device/host interrupt */
if (ci->role != CI_ROLE_END)
ret = ci_role(ci)->irq(ci);
+ else
+ dev_info(ci->dev, "otgsc:0x%x, usbsts:0x%x\n",
+ hw_read_otgsc(ci, ~0),
+ hw_read_intr_status(ci) &
hw_read_intr_enable(ci)
+ );
+
return ret;
}
> usb_put_hcd(hcd);
> if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci) &&
> (ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON))
>
> the i get the following during shutdown:
The reason for this is the host_stop is re-entered.
Peter
>
> [ 102.17] ci_hdrc ci_hdrc.0: remove, state 1
Re: usb: chipidea: hdc: kernel panic during shutdown
Hi Alan,
> Alan Stern hat am 24. August 2016 um 20:55
> geschrieben:
>
>
> On Wed, 24 Aug 2016, Stefan Wahren wrote:
>
> > Hi,
> >
> > [add Li Jun to CC]
> >
> > > Alan Stern hat am 24. August 2016 um 15:45
> > > geschrieben:
> > >
> > >
> > > On Wed, 24 Aug 2016, Peter Chen wrote:
> > >
> > > > On Tue, Aug 23, 2016 at 09:17:02PM +0200, Stefan Wahren wrote:
> > > > > Hi,
> > > > >
> > > > > i'm using a iMX233-OLinuXino board and the kernel panics during
> > > > > shutdown
> > > > > with
> > > > > 4.8.0-rc2-next-20160819:
> > > > >
> > > > > [ 420.04] ci_hdrc ci_hdrc.0: remove, state 1
> > > > > [ 420.05] usb usb1: USB disconnect, device number 1
> > > > > [ 420.06] usb 1-1: USB disconnect, device number 2
> > > > > [ 420.06] usb 1-1.1: USB disconnect, device number 3
> > > > > [ 420.09] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> > > > > usb-ci_hdrc.0-1.1,
> > > > > smsc95xx USB 2.0 Ethernet
> > > > > [ 420.29] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> > > > > [ 420.30] Unable to handle kernel NULL pointer dereference at
> > > > > virtual
> > > > > address 0118
> > > > > [ 420.30] pgd = c2ea4000
> > > > > [ 420.30] [0118] *pgd=
> > > > > [ 420.30] Internal error: Oops: 5 [#1] ARM
> > > > > [ 420.30] Modules linked in:
> > > > > [ 420.30] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted
> > > > > 4.8.0-rc2-next-20160819 #1
> > > > > [ 420.30] Hardware name: Freescale MXS (Device Tree)
> > > > > [ 420.30] task: c349 task.stack: c348e000
> > > > > [ 420.30] PC is at usb_hcd_irq+0x0/0x34
> > > > > [ 420.30] LR is at ci_irq+0x58/0x12c
> > >
> > > > I am afraid the hcd is freed before the interrupt triggered. Would you
> > > > please try below changes:
> > > >
> > > > diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> > > > index 96ae695..61237a9 100644
> > > > --- a/drivers/usb/chipidea/host.c
> > > > +++ b/drivers/usb/chipidea/host.c
> > > > @@ -103,7 +103,7 @@ static const struct ehci_driver_overrides
> > > > ehci_ci_overrides = {
> > > > static irqreturn_t host_irq(struct ci_hdrc *ci)
> > > > {
> > > > - return usb_hcd_irq(ci->irq, ci->hcd);
> > > > + return ci->hcd ? usb_hcd_irq(ci->irq, ci->hcd) : IRQ_NONE;
> > > > }
> > >
> > > This should not be needed. Instead, the driver should make sure that
> > > the interrupt handler has been fully unregistered before the hcd is
> > > deallocated.
> >
> > according to ci_hdrc_probe() from the chipidea core the IRQ seems to be
> > requested via devm_request_irq() with the flag IRQF_SHARED.
> >
> > I have the suspicion the following commit triggers the kernel panic:
> >
> > 43a404577a93 ("usb: chipidea: host: set host to be null after hcd is freed")
>
> No, that's not the cause. Without that commit, you would try to access
> deallocated memory instead of trying to dereference a NULL pointer, but
> the kernel would still oops.
>
> Instead, how about setting ci->role to CI_ROLE_END and then calling
> synchronize_irq(ci->irq) in host_stop(), before the usb_put_hcd()?
i tried the following patch:
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -185,6 +185,8 @@ static void host_stop(struct ci_hdrc *ci)
if (hcd) {
usb_remove_hcd(hcd);
+ ci_role_stop(ci);
+ synchronize_irq(ci->irq);
usb_put_hcd(hcd);
if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci) &&
(ci->platdata->flags & CI_HDRC_TURN_VBUS_EARLY_ON))
the i get the following during shutdown:
[ 102.17] ci_hdrc ci_hdrc.0: remove, state 1
[ 102.18] usb usb1: USB disconnect, device number 1
[ 102.18] usb 1-1: USB disconnect, device number 2
[ 102.19] usb 1-1.1: USB disconnect, device number 3
[ 102.22] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx' usb-ci_hdrc.0-1.1,
smsc95xx USB 2.0 Ethernet
[ 102.41] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
[ 102.42] ci_hdrc ci_hdrc.0: remove, state 0
[ 102.42] Unable to handle kernel NULL pointer dereference at virtual
address 0090
[ 102.43] pgd = c2e74000
[ 102.43] [0090] *pgd=
[ 102.44] Internal error: Oops: 5 [#1] ARM
[ 102.44] Modules linked in:
[ 102.44] CPU: 0 PID: 1 Comm: systemd-shutdow Tainted: GW
4.8.0-rc3-00026-gcad9d20-dirty #4
[ 102.44] Hardware name: Freescale MXS (Device Tree)
[ 102.44] task: c349 task.stack: c348e000
[ 102.44] PC is at sysfs_remove_group+0x18/0x9c
[ 102.44] LR is at usb_remove_hcd+0x3c/0x1ac
[ 102.44] pc : []lr : []psr: 6013
[ 102.44] sp : c348fd48 ip : c349 fp : be87dc58
[ 102.44] r10: c08cd48c r9 : r8 : c348fe5c
[ 102.44] r7 : c354bc44 r6 : c08a5160 r5 : 0078 r4 : c08afd2c
[ 102.44] r3 : c349 r2 : r1 : r0 : 0078
[ 102.44] Flags: nZCv IRQs on
Re: usb: chipidea: hdc: kernel panic during shutdown
On Wed, 24 Aug 2016, Stefan Wahren wrote:
> Hi,
>
> [add Li Jun to CC]
>
> > Alan Stern hat am 24. August 2016 um 15:45
> > geschrieben:
> >
> >
> > On Wed, 24 Aug 2016, Peter Chen wrote:
> >
> > > On Tue, Aug 23, 2016 at 09:17:02PM +0200, Stefan Wahren wrote:
> > > > Hi,
> > > >
> > > > i'm using a iMX233-OLinuXino board and the kernel panics during shutdown
> > > > with
> > > > 4.8.0-rc2-next-20160819:
> > > >
> > > > [ 420.04] ci_hdrc ci_hdrc.0: remove, state 1
> > > > [ 420.05] usb usb1: USB disconnect, device number 1
> > > > [ 420.06] usb 1-1: USB disconnect, device number 2
> > > > [ 420.06] usb 1-1.1: USB disconnect, device number 3
> > > > [ 420.09] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> > > > usb-ci_hdrc.0-1.1,
> > > > smsc95xx USB 2.0 Ethernet
> > > > [ 420.29] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> > > > [ 420.30] Unable to handle kernel NULL pointer dereference at
> > > > virtual
> > > > address 0118
> > > > [ 420.30] pgd = c2ea4000
> > > > [ 420.30] [0118] *pgd=
> > > > [ 420.30] Internal error: Oops: 5 [#1] ARM
> > > > [ 420.30] Modules linked in:
> > > > [ 420.30] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted
> > > > 4.8.0-rc2-next-20160819 #1
> > > > [ 420.30] Hardware name: Freescale MXS (Device Tree)
> > > > [ 420.30] task: c349 task.stack: c348e000
> > > > [ 420.30] PC is at usb_hcd_irq+0x0/0x34
> > > > [ 420.30] LR is at ci_irq+0x58/0x12c
> >
> > > I am afraid the hcd is freed before the interrupt triggered. Would you
> > > please try below changes:
> > >
> > > diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> > > index 96ae695..61237a9 100644
> > > --- a/drivers/usb/chipidea/host.c
> > > +++ b/drivers/usb/chipidea/host.c
> > > @@ -103,7 +103,7 @@ static const struct ehci_driver_overrides
> > > ehci_ci_overrides = {
> > > static irqreturn_t host_irq(struct ci_hdrc *ci)
> > > {
> > > - return usb_hcd_irq(ci->irq, ci->hcd);
> > > + return ci->hcd ? usb_hcd_irq(ci->irq, ci->hcd) : IRQ_NONE;
> > > }
> >
> > This should not be needed. Instead, the driver should make sure that
> > the interrupt handler has been fully unregistered before the hcd is
> > deallocated.
>
> according to ci_hdrc_probe() from the chipidea core the IRQ seems to be
> requested via devm_request_irq() with the flag IRQF_SHARED.
>
> I have the suspicion the following commit triggers the kernel panic:
>
> 43a404577a93 ("usb: chipidea: host: set host to be null after hcd is freed")
No, that's not the cause. Without that commit, you would try to access
deallocated memory instead of trying to dereference a NULL pointer, but
the kernel would still oops.
Instead, how about setting ci->role to CI_ROLE_END and then calling
synchronize_irq(ci->irq) in host_stop(), before the usb_put_hcd()?
Alan Stern
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
Hi,
[add Li Jun to CC]
> Alan Stern hat am 24. August 2016 um 15:45
> geschrieben:
>
>
> On Wed, 24 Aug 2016, Peter Chen wrote:
>
> > On Tue, Aug 23, 2016 at 09:17:02PM +0200, Stefan Wahren wrote:
> > > Hi,
> > >
> > > i'm using a iMX233-OLinuXino board and the kernel panics during shutdown
> > > with
> > > 4.8.0-rc2-next-20160819:
> > >
> > > [ 420.04] ci_hdrc ci_hdrc.0: remove, state 1
> > > [ 420.05] usb usb1: USB disconnect, device number 1
> > > [ 420.06] usb 1-1: USB disconnect, device number 2
> > > [ 420.06] usb 1-1.1: USB disconnect, device number 3
> > > [ 420.09] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> > > usb-ci_hdrc.0-1.1,
> > > smsc95xx USB 2.0 Ethernet
> > > [ 420.29] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> > > [ 420.30] Unable to handle kernel NULL pointer dereference at virtual
> > > address 0118
> > > [ 420.30] pgd = c2ea4000
> > > [ 420.30] [0118] *pgd=
> > > [ 420.30] Internal error: Oops: 5 [#1] ARM
> > > [ 420.30] Modules linked in:
> > > [ 420.30] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted
> > > 4.8.0-rc2-next-20160819 #1
> > > [ 420.30] Hardware name: Freescale MXS (Device Tree)
> > > [ 420.30] task: c349 task.stack: c348e000
> > > [ 420.30] PC is at usb_hcd_irq+0x0/0x34
> > > [ 420.30] LR is at ci_irq+0x58/0x12c
>
> > I am afraid the hcd is freed before the interrupt triggered. Would you
> > please try below changes:
> >
> > diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> > index 96ae695..61237a9 100644
> > --- a/drivers/usb/chipidea/host.c
> > +++ b/drivers/usb/chipidea/host.c
> > @@ -103,7 +103,7 @@ static const struct ehci_driver_overrides
> > ehci_ci_overrides = {
> > static irqreturn_t host_irq(struct ci_hdrc *ci)
> > {
> > - return usb_hcd_irq(ci->irq, ci->hcd);
> > + return ci->hcd ? usb_hcd_irq(ci->irq, ci->hcd) : IRQ_NONE;
> > }
>
> This should not be needed. Instead, the driver should make sure that
> the interrupt handler has been fully unregistered before the hcd is
> deallocated.
according to ci_hdrc_probe() from the chipidea core the IRQ seems to be
requested via devm_request_irq() with the flag IRQF_SHARED.
I have the suspicion the following commit triggers the kernel panic:
43a404577a93 ("usb: chipidea: host: set host to be null after hcd is freed")
I will validate this.
>
> Alan Stern
>
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
On Wed, 24 Aug 2016, Peter Chen wrote:
> On Tue, Aug 23, 2016 at 09:17:02PM +0200, Stefan Wahren wrote:
> > Hi,
> >
> > i'm using a iMX233-OLinuXino board and the kernel panics during shutdown
> > with
> > 4.8.0-rc2-next-20160819:
> >
> > [ 420.04] ci_hdrc ci_hdrc.0: remove, state 1
> > [ 420.05] usb usb1: USB disconnect, device number 1
> > [ 420.06] usb 1-1: USB disconnect, device number 2
> > [ 420.06] usb 1-1.1: USB disconnect, device number 3
> > [ 420.09] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> > usb-ci_hdrc.0-1.1,
> > smsc95xx USB 2.0 Ethernet
> > [ 420.29] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> > [ 420.30] Unable to handle kernel NULL pointer dereference at virtual
> > address 0118
> > [ 420.30] pgd = c2ea4000
> > [ 420.30] [0118] *pgd=
> > [ 420.30] Internal error: Oops: 5 [#1] ARM
> > [ 420.30] Modules linked in:
> > [ 420.30] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted
> > 4.8.0-rc2-next-20160819 #1
> > [ 420.30] Hardware name: Freescale MXS (Device Tree)
> > [ 420.30] task: c349 task.stack: c348e000
> > [ 420.30] PC is at usb_hcd_irq+0x0/0x34
> > [ 420.30] LR is at ci_irq+0x58/0x12c
> I am afraid the hcd is freed before the interrupt triggered. Would you
> please try below changes:
>
> diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> index 96ae695..61237a9 100644
> --- a/drivers/usb/chipidea/host.c
> +++ b/drivers/usb/chipidea/host.c
> @@ -103,7 +103,7 @@ static const struct ehci_driver_overrides
> ehci_ci_overrides = {
> static irqreturn_t host_irq(struct ci_hdrc *ci)
> {
> - return usb_hcd_irq(ci->irq, ci->hcd);
> + return ci->hcd ? usb_hcd_irq(ci->irq, ci->hcd) : IRQ_NONE;
> }
This should not be needed. Instead, the driver should make sure that
the interrupt handler has been fully unregistered before the hcd is
deallocated.
Alan Stern
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: usb: chipidea: hdc: kernel panic during shutdown
On Tue, Aug 23, 2016 at 09:17:02PM +0200, Stefan Wahren wrote:
> Hi,
>
> i'm using a iMX233-OLinuXino board and the kernel panics during shutdown with
> 4.8.0-rc2-next-20160819:
>
> [ 420.04] ci_hdrc ci_hdrc.0: remove, state 1
> [ 420.05] usb usb1: USB disconnect, device number 1
> [ 420.06] usb 1-1: USB disconnect, device number 2
> [ 420.06] usb 1-1.1: USB disconnect, device number 3
> [ 420.09] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx'
> usb-ci_hdrc.0-1.1,
> smsc95xx USB 2.0 Ethernet
> [ 420.29] ci_hdrc ci_hdrc.0: USB bus 1 deregistered
> [ 420.30] Unable to handle kernel NULL pointer dereference at virtual
> address 0118
> [ 420.30] pgd = c2ea4000
> [ 420.30] [0118] *pgd=
> [ 420.30] Internal error: Oops: 5 [#1] ARM
> [ 420.30] Modules linked in:
> [ 420.30] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted
> 4.8.0-rc2-next-20160819 #1
> [ 420.30] Hardware name: Freescale MXS (Device Tree)
> [ 420.30] task: c349 task.stack: c348e000
> [ 420.30] PC is at usb_hcd_irq+0x0/0x34
> [ 420.30] LR is at ci_irq+0x58/0x12c
> [ 420.30] pc : []lr : []psr: a093
> [ 420.30] sp : c348fd20 ip : c348fcd8 fp : c3704624
> [ 420.30] r10: c3708300 r9 : c3602010 r8 : 6013
> [ 420.30] r7 : 0094 r6 : 2013 r5 : c3549600 r4 : c3602010
> [ 420.30] r3 : 12a0 r2 : 0808 r1 : r0 : 0094
> [ 420.30] Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment
> none
> [ 420.30] Control: 0005317f Table: 42ea4000 DAC: 0051
> [ 420.30] Process systemd-shutdow (pid: 1, stack limit = 0xc348e190)
> [ 420.30] Stack: (0xc348fd20 to 0xc349)
> [ 420.30] fd20: c3549610 c3549600 2013 c006bfac c3549600
> 0094 c3602010
> [ 420.30] fd40: c370e2e0 c36f4e80 c36f4e80 0005 c370e2e0 c006c098
> c348fd70 c3704410
> [ 420.30] fd60: c370e2e0 c039cd68 0005 a013 c36f4e00 c370e2e0
> a013 c039ce0c
> [ 420.30] fd80: c354b844 c348fe5c c08d604c c3704624 c370e2e0
> 0001 c3704410
> [ 420.30] fda0: c08bc194 c08ad460 c354b844 c348fe5c c08d604c
> be829c58 c03997e8
> [ 420.30] fdc0: c370 c3704410 c08ad460 c0399954 c3402a4c c3704410
> c08ad460 c0398d64
> [ 420.30] fde0: c3704410 c354b810 c112ebf4 c0396e2c c349 0007
> 0006 c348fe5c
> [ 420.30] fe00: c3704400 c3704410 c354b810 c354b844 c348fe5c c039bb90
> c3704400 c3708090
> [ 420.30] fe20: c354b810 c039c118 c044941c c354b800 c044e6f8
> c354b810 c03a47fc
> [ 420.30] fe40: c354b810 c354b410 c112ebf4 c039b578 c354b810 c0397410
> 0002 c08ad22c
> [ 420.30] fe60: c342fa20 c354b81c 4321fedc c0866838 cdef0123 f3f82200
> c000a484 c348e000
> [ 420.30] fe80: c00427f4 4321fedc c0042a10
> c348fec8 0029
> [ 420.30] fea0: c2e2d488 c34b9c28 0002 c00690fc
> c0132e0c
> [ 420.30] fec0: be8291f8 0004 be829f8a 0010
> be829224 0005
> [ 420.30] fee0: be8292c4 000f 7f5fb9f8 0001 be828d3c c08629b4
> c348ffb0 00053177
> [ 420.30] ff00: 07ff 000f0f24 c2e2d480
>
> [ 420.30] ff20: 0001 0029 c348fec8
> 0005
> [ 420.30] ff40: 0004001e 0005 be82924c 0005 be82924c
> c348e000
> [ 420.30] ff60: 7f60e854 c0132f24 c348ff88 c2e2d480 c2e2d480
> c0132f70
> [ 420.30] ff80: c000a484 8102d190 8102c118
> 8102d190 8102c118
> [ 420.30] ffa0: 0058 c000a2e0 8102d190 fee1dead 28121969
> cdef0123 f3f82200
> [ 420.30] ffc0: 8102d190 8102c118 0058 be829bc4
> be829c58
> [ 420.30] ffe0: 7f60de4c be829b08 7f5ee114 b6e46088 6010 fee1dead
>
> [ 420.30] [] (usb_hcd_irq) from [] (0xc3549600)
> [ 420.30] Code: c077a4d4 c08b802c c08b8040 c08b7fb0 (e5913118)
> [ 420.30] ---[ end trace 5e83b1955a5bd084 ]---
> [ 420.62] systemd-shutdow: 2 output lines suppressed due to ratelimiting
> [ 420.62] Kernel panic - not syncing: Attempted to kill init!
> exitcode=0x000b
> [ 420.62]
> [ 420.62] ---[ end Kernel panic - not syncing: Attempted to kill init!
>
I am afraid the hcd is freed before the interrupt triggered. Would you
please try below changes:
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 96ae695..61237a9 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -103,7 +103,7 @@ static const struct ehci_driver_overrides ehci_ci_overrides
= {
static irqreturn_t host_irq(struct ci_hdrc *ci)
{
- return usb_hcd_irq(ci->irq, ci->hcd);
+ return ci->hcd ? usb_hcd_irq(ci->irq, ci->hcd) : IRQ_NONE;
}
static int host_start(struct ci_hdrc *ci)
--
usb: chipidea: hdc: kernel panic during shutdown
Hi, i'm using a iMX233-OLinuXino board and the kernel panics during shutdown with 4.8.0-rc2-next-20160819: [ 420.04] ci_hdrc ci_hdrc.0: remove, state 1 [ 420.05] usb usb1: USB disconnect, device number 1 [ 420.06] usb 1-1: USB disconnect, device number 2 [ 420.06] usb 1-1.1: USB disconnect, device number 3 [ 420.09] smsc95xx 1-1.1:1.0 eth0: unregister 'smsc95xx' usb-ci_hdrc.0-1.1, smsc95xx USB 2.0 Ethernet [ 420.29] ci_hdrc ci_hdrc.0: USB bus 1 deregistered [ 420.30] Unable to handle kernel NULL pointer dereference at virtual address 0118 [ 420.30] pgd = c2ea4000 [ 420.30] [0118] *pgd= [ 420.30] Internal error: Oops: 5 [#1] ARM [ 420.30] Modules linked in: [ 420.30] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 4.8.0-rc2-next-20160819 #1 [ 420.30] Hardware name: Freescale MXS (Device Tree) [ 420.30] task: c349 task.stack: c348e000 [ 420.30] PC is at usb_hcd_irq+0x0/0x34 [ 420.30] LR is at ci_irq+0x58/0x12c [ 420.30] pc : []lr : []psr: a093 [ 420.30] sp : c348fd20 ip : c348fcd8 fp : c3704624 [ 420.30] r10: c3708300 r9 : c3602010 r8 : 6013 [ 420.30] r7 : 0094 r6 : 2013 r5 : c3549600 r4 : c3602010 [ 420.30] r3 : 12a0 r2 : 0808 r1 : r0 : 0094 [ 420.30] Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none [ 420.30] Control: 0005317f Table: 42ea4000 DAC: 0051 [ 420.30] Process systemd-shutdow (pid: 1, stack limit = 0xc348e190) [ 420.30] Stack: (0xc348fd20 to 0xc349) [ 420.30] fd20: c3549610 c3549600 2013 c006bfac c3549600 0094 c3602010 [ 420.30] fd40: c370e2e0 c36f4e80 c36f4e80 0005 c370e2e0 c006c098 c348fd70 c3704410 [ 420.30] fd60: c370e2e0 c039cd68 0005 a013 c36f4e00 c370e2e0 a013 c039ce0c [ 420.30] fd80: c354b844 c348fe5c c08d604c c3704624 c370e2e0 0001 c3704410 [ 420.30] fda0: c08bc194 c08ad460 c354b844 c348fe5c c08d604c be829c58 c03997e8 [ 420.30] fdc0: c370 c3704410 c08ad460 c0399954 c3402a4c c3704410 c08ad460 c0398d64 [ 420.30] fde0: c3704410 c354b810 c112ebf4 c0396e2c c349 0007 0006 c348fe5c [ 420.30] fe00: c3704400 c3704410 c354b810 c354b844 c348fe5c c039bb90 c3704400 c3708090 [ 420.30] fe20: c354b810 c039c118 c044941c c354b800 c044e6f8 c354b810 c03a47fc [ 420.30] fe40: c354b810 c354b410 c112ebf4 c039b578 c354b810 c0397410 0002 c08ad22c [ 420.30] fe60: c342fa20 c354b81c 4321fedc c0866838 cdef0123 f3f82200 c000a484 c348e000 [ 420.30] fe80: c00427f4 4321fedc c0042a10 c348fec8 0029 [ 420.30] fea0: c2e2d488 c34b9c28 0002 c00690fc c0132e0c [ 420.30] fec0: be8291f8 0004 be829f8a 0010 be829224 0005 [ 420.30] fee0: be8292c4 000f 7f5fb9f8 0001 be828d3c c08629b4 c348ffb0 00053177 [ 420.30] ff00: 07ff 000f0f24 c2e2d480 [ 420.30] ff20: 0001 0029 c348fec8 0005 [ 420.30] ff40: 0004001e 0005 be82924c 0005 be82924c c348e000 [ 420.30] ff60: 7f60e854 c0132f24 c348ff88 c2e2d480 c2e2d480 c0132f70 [ 420.30] ff80: c000a484 8102d190 8102c118 8102d190 8102c118 [ 420.30] ffa0: 0058 c000a2e0 8102d190 fee1dead 28121969 cdef0123 f3f82200 [ 420.30] ffc0: 8102d190 8102c118 0058 be829bc4 be829c58 [ 420.30] ffe0: 7f60de4c be829b08 7f5ee114 b6e46088 6010 fee1dead [ 420.30] [] (usb_hcd_irq) from [] (0xc3549600) [ 420.30] Code: c077a4d4 c08b802c c08b8040 c08b7fb0 (e5913118) [ 420.30] ---[ end trace 5e83b1955a5bd084 ]--- [ 420.62] systemd-shutdow: 2 output lines suppressed due to ratelimiting [ 420.62] Kernel panic - not syncing: Attempted to kill init! exitcode=0x000b [ 420.62] [ 420.62] ---[ end Kernel panic - not syncing: Attempted to kill init! I will try to bisect this issue. Regards Stefan -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
