On Wed 2016-10-12 03:12:56, Sean Hudson wrote:
> On 10/5/2016 2:48 PM, Petr Mladek wrote:
> > On Tue 2016-10-04 12:55:35, Sean Hudson wrote:
> >> On 10/4/2016 6:27 AM, Petr Mladek wrote:
> >>> IMHO, the only way is to revisit all locations when the log buffer
> >>> is accessed and add all the neede
On 10/5/2016 2:48 PM, Petr Mladek wrote:
> On Tue 2016-10-04 12:55:35, Sean Hudson wrote:
>> On 10/4/2016 6:27 AM, Petr Mladek wrote:
>>> On Fri 2016-09-30 23:06:49, Sean Hudson wrote:
On 9/30/2016 7:39 AM, Petr Mladek wrote:
>
>> Note, there is a small window of time during early boot
On Tue 2016-10-04 12:55:35, Sean Hudson wrote:
> On 10/4/2016 6:27 AM, Petr Mladek wrote:
> > On Fri 2016-09-30 23:06:49, Sean Hudson wrote:
> >> On 9/30/2016 7:39 AM, Petr Mladek wrote:
> >>>
> >>> Is the bootloader allowed to write to the shared buffer from this
> >>> point on? How will be synchr
On 10/4/2016 6:27 AM, Petr Mladek wrote:
> On Fri 2016-09-30 23:06:49, Sean Hudson wrote:
>> On 9/30/2016 7:39 AM, Petr Mladek wrote:
>>>
>>> Is the bootloader allowed to write to the shared buffer from this
>>> point on? How will be synchronized the writes from the kernel and
>>> the bootloader?
>
On Fri 2016-09-30 23:06:49, Sean Hudson wrote:
> On 9/30/2016 7:39 AM, Petr Mladek wrote:
> > On Thu 2016-09-29 19:55:56, Sean Hudson wrote:
> >> + /* Overwrite the default lcb pointer, buffer pointer, and length. */
> >> + lcb = new_lcb;
> >> + lcb->log_buf = (char *)new_lcb->log_buf;
> >> + l
On 9/30/2016 7:39 AM, Petr Mladek wrote:
> On Thu 2016-09-29 19:55:56, Sean Hudson wrote:
>> This debug feature provides a convenient way to collect log entries across
>> multiple, warmboot cycles and to share those entries with a boot loader.
>> It allows the kernel to use an external buffer for k
On Thu 2016-09-29 19:55:56, Sean Hudson wrote:
> This debug feature provides a convenient way to collect log entries across
> multiple, warmboot cycles and to share those entries with a boot loader.
> It allows the kernel to use an external buffer for kernel log messages and
> is controlled by an o
This debug feature provides a convenient way to collect log entries across
multiple, warmboot cycles and to share those entries with a boot loader.
It allows the kernel to use an external buffer for kernel log messages and
is controlled by an optional command line parameter. The buffer can contain
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