On Thu 2020-08-13 20:31:55, Sergey Senozhatsky wrote:
> On (20/08/13 12:22), Petr Mladek wrote:
> >
> > + would take more space (prefix + text vs. binary representation)
>
> Dict buffer is allocated regardless of how we use it, and only printks
> from drivers/* (dev_printk*) add dict payload.
On 08/11/20 at 12:40pm, Orson Zhai wrote:
> From: Thomas Gleixner
>
> Timestamps printed in kernel log are retrieved by local_clock which reads
> jiffies as a referrence clock source.
> But it is diffcult to be synchronized with logs generated out of kernel,
> say some remote processors (Modem)
On (20/08/13 12:22), Petr Mladek wrote:
>
> + would take more space (prefix + text vs. binary representation)
Dict buffer is allocated regardless of how we use it, and only printks
from drivers/* (dev_printk*) add dict payload. It might be the case
that on some (if not most) systems dict pages
Sergey Senozhatsky writes:
> On (20/08/11 15:02), Petr Mladek wrote:
>> There is still the alternative to print all three timestamps regularly
>> for those interested. It is less user convenient but much easier
>> to maintain.
>
> Yes, that's a nice alternative.
It's trivial on the kernel side,
On Thu 2020-08-13 10:55:00, Sergey Senozhatsky wrote:
> On (20/08/11 15:02), Petr Mladek wrote:
> > On Tue 2020-08-11 14:05:12, Thomas Gleixner wrote:
> > > Petr Mladek writes:
> > > > At least "crash" tool would need an update anyway. AFAIK, it checks
> > > > the size of struct printk_log and
On (20/08/11 15:02), Petr Mladek wrote:
> On Tue 2020-08-11 14:05:12, Thomas Gleixner wrote:
> > Petr Mladek writes:
> > > At least "crash" tool would need an update anyway. AFAIK, it checks
> > > the size of struct printk_log and refuses to read it when it changes.
> > >
> > > It means that the
On 8/11/20 9:02 AM, Petr Mladek wrote:
> On Tue 2020-08-11 14:05:12, Thomas Gleixner wrote:
>> Petr Mladek writes:
>>> At least "crash" tool would need an update anyway. AFAIK, it checks
>>> the size of struct printk_log and refuses to read it when it changes.
>>>
>>> It means that the hack
On Tue 2020-08-11 14:05:12, Thomas Gleixner wrote:
> Petr Mladek writes:
> > At least "crash" tool would need an update anyway. AFAIK, it checks
> > the size of struct printk_log and refuses to read it when it changes.
> >
> > It means that the hack with VMCOREINFO_FIELD_OFFSET probably is not
>
Petr Mladek writes:
> On Tue 2020-08-11 12:40:22, Orson Zhai wrote:
>> This is an updated version which comes from patch [1] written by Thomas
>> and suggestion [2] about VMCORE_INFO given by Linus.
All of that want's to be properly distangled into seperate patches.
>> This patch has been
On Tue 2020-08-11 12:40:22, Orson Zhai wrote:
> From: Thomas Gleixner
>
> Timestamps printed in kernel log are retrieved by local_clock which reads
> jiffies as a referrence clock source.
> But it is diffcult to be synchronized with logs generated out of kernel,
> say some remote processors
On 8/10/20 9:40 PM, Orson Zhai wrote:
> +/*
> + * struct timestanps - Simultaneous mono/boot/real timestamps
typo:timestamps
> + * @mono:Monotonic timestamp
> + * @boot:Boottime timestamp
> + * @real:Realtime timestamp
> + */
> +struct timestamps {
> + u64
From: Thomas Gleixner
Timestamps printed in kernel log are retrieved by local_clock which reads
jiffies as a referrence clock source.
But it is diffcult to be synchronized with logs generated out of kernel,
say some remote processors (Modem) in the Soc of mobile phones.
Jiffies will be
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