Hi Andy,
On (20/08/13 21:00), Andy Shevchenko wrote:
> That's basically what Sergey (IIRC) proposed in [1].
> (You missed enable_irq() part in above)
>
> I guess we may try it. Sergey, can you submit a formal patch?
OK, let me try.
-ss
On Thu, Aug 13, 2020 at 09:00:13PM +0300, Andy Shevchenko wrote:
> On Thu, Aug 13, 2020 at 10:03:44AM -0700, Guenter Roeck wrote:
> > On 8/13/20 8:33 AM, Guenter Roeck wrote:
> > > On 8/13/20 7:20 AM, Andy Shevchenko wrote:
> > >> On Thu, Aug 13, 2020 at 01:59:48PM +0200, Greg KH wrote:
> > >>> On
On Thu, Aug 13, 2020 at 10:03:44AM -0700, Guenter Roeck wrote:
> On 8/13/20 8:33 AM, Guenter Roeck wrote:
> > On 8/13/20 7:20 AM, Andy Shevchenko wrote:
> >> On Thu, Aug 13, 2020 at 01:59:48PM +0200, Greg KH wrote:
> >>> On Wed, Aug 12, 2020 at 10:06:29PM -0700, Guenter Roeck wrote:
> On Wed,
On 8/13/20 8:33 AM, Guenter Roeck wrote:
> On 8/13/20 7:20 AM, Andy Shevchenko wrote:
>> On Thu, Aug 13, 2020 at 01:59:48PM +0200, Greg KH wrote:
>>> On Wed, Aug 12, 2020 at 10:06:29PM -0700, Guenter Roeck wrote:
On Wed, Aug 12, 2020 at 08:48:13AM -0700, Guenter Roeck wrote:
> Hi,
>
>>
On 8/13/20 7:20 AM, Andy Shevchenko wrote:
> On Thu, Aug 13, 2020 at 01:59:48PM +0200, Greg KH wrote:
>> On Wed, Aug 12, 2020 at 10:06:29PM -0700, Guenter Roeck wrote:
>>> On Wed, Aug 12, 2020 at 08:48:13AM -0700, Guenter Roeck wrote:
Hi,
crbug.com/1114800 reports a hard lockup due t
On Thu, Aug 13, 2020 at 01:59:48PM +0200, Greg KH wrote:
> On Wed, Aug 12, 2020 at 10:06:29PM -0700, Guenter Roeck wrote:
> > On Wed, Aug 12, 2020 at 08:48:13AM -0700, Guenter Roeck wrote:
> > > Hi,
> > >
> > > crbug.com/1114800 reports a hard lockup due to circular locking in the
> > > 8250 conso
On Wed, Aug 12, 2020 at 10:06:29PM -0700, Guenter Roeck wrote:
> On Wed, Aug 12, 2020 at 08:48:13AM -0700, Guenter Roeck wrote:
> > Hi,
> >
> > crbug.com/1114800 reports a hard lockup due to circular locking in the
> > 8250 console driver. This is seen if CONFIG_PROVE_LOCKING is enabled.
> >
> >
On Wed, Aug 12, 2020 at 08:48:13AM -0700, Guenter Roeck wrote:
> Hi,
>
> crbug.com/1114800 reports a hard lockup due to circular locking in the
> 8250 console driver. This is seen if CONFIG_PROVE_LOCKING is enabled.
>
> Problem is as follows:
> - serial8250_do_startup() locks the serial (console)
Hi,
crbug.com/1114800 reports a hard lockup due to circular locking in the
8250 console driver. This is seen if CONFIG_PROVE_LOCKING is enabled.
Problem is as follows:
- serial8250_do_startup() locks the serial (console) port.
- serial8250_do_startup() then disables interrupts if interrupts are
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