On Wed 2019-02-20 14:44:33, Andrea Parri wrote:
> > >> > > + * Order the stores above in vsnprintf() vs the store
> > >> > > of the
> > >> > > + * space below which joins the two strings. Note this
> > >> > > doesn't
> > >> > > + * make the code truly race free
> >> > > + * Order the stores above in vsnprintf() vs the store
> >> > > of the
> >> > > + * space below which joins the two strings. Note this
> >> > > doesn't
> >> > > + * make the code truly race free because there is no
> >> > > barrier on
> >> > > +
Andrea Parri writes:
> On Mon, Feb 11, 2019 at 03:38:59PM +0100, Petr Mladek wrote:
>> On Mon 2019-02-11 13:50:35, Andrea Parri wrote:
>> > On Thu, Feb 07, 2019 at 11:46:29PM +1100, Michael Ellerman wrote:
>> > > Arch code can set a "dump stack arch description string" which is
>> > > displayed wi
On Mon, Feb 11, 2019 at 03:38:59PM +0100, Petr Mladek wrote:
> On Mon 2019-02-11 13:50:35, Andrea Parri wrote:
> > Hi Michael,
> >
> >
> > On Thu, Feb 07, 2019 at 11:46:29PM +1100, Michael Ellerman wrote:
> > > Arch code can set a "dump stack arch description string" which is
> > > displayed with
On Mon 2019-02-11 13:50:35, Andrea Parri wrote:
> Hi Michael,
>
>
> On Thu, Feb 07, 2019 at 11:46:29PM +1100, Michael Ellerman wrote:
> > Arch code can set a "dump stack arch description string" which is
> > displayed with oops output to describe the hardware platform.
> >
> > It is useful to in
Hi Michael,
On Thu, Feb 07, 2019 at 11:46:29PM +1100, Michael Ellerman wrote:
> Arch code can set a "dump stack arch description string" which is
> displayed with oops output to describe the hardware platform.
>
> It is useful to initialise this as early as possible, so that an early
> oops will
On (02/08/19 13:55), Steven Rostedt wrote:
[..]
> > + if (len) {
> > + /*
> > +* Order the stores above in vsnprintf() vs the store of the
> > +* space below which joins the two strings. Note this doesn't
> > +* make the code truly race free because t
On Thu, Feb 07, 2019 at 11:46:29PM +1100, Michael Ellerman wrote:
>
> diff --git a/include/linux/printk.h b/include/linux/printk.h
> index 77740a506ebb..d5fb4f960271 100644
> --- a/include/linux/printk.h
> +++ b/include/linux/printk.h
> @@ -198,6 +198,7 @@ u32 log_buf_len_get(void);
> void log_bu
Cc-ing Steven
https://lore.kernel.org/lkml/20190207124635.3885-1-...@ellerman.id.au/T/#u
On (02/07/19 23:46), Michael Ellerman wrote:
> Arch code can set a "dump stack arch description string" which is
> displayed with oops output to describe the hardware platform.
>
> It is useful to initiali
Arch code can set a "dump stack arch description string" which is
displayed with oops output to describe the hardware platform.
It is useful to initialise this as early as possible, so that an early
oops will have the hardware description.
However in practice we discover the hardware platform in
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