On Fri, Jan 08, 2021 at 06:55:14AM -0800, Paul E. McKenney wrote:
> Looks good to me! I agree that your change to the pr_emerg() string is
> much better than my original.
Well, the rest of the MCE code uses pr_emerg on that path so...
> And good point on your added comment, plus it was fun to se
On Fri, Jan 08, 2021 at 01:31:56PM +0100, Borislav Petkov wrote:
> On Thu, Jan 07, 2021 at 09:08:44AM -0800, Paul E. McKenney wrote:
> > Some information is usually better than none. And I bet that failing
> > hardware is capable of all sorts of tricks at all sorts of levels. ;-)
>
> Tell me abo
On Thu, Jan 07, 2021 at 09:08:44AM -0800, Paul E. McKenney wrote:
> Some information is usually better than none. And I bet that failing
> hardware is capable of all sorts of tricks at all sorts of levels. ;-)
Tell me about it.
> Updated patch below. Is this what you had in mind?
Ok, so I've
On Thu, Jan 07, 2021 at 08:07:24AM +0100, Borislav Petkov wrote:
> On Wed, Jan 06, 2021 at 11:13:53AM -0800, Paul E. McKenney wrote:
> > Not yet, it isn't! Well, except in -rcu. ;-)
>
> Of course it is - saying "This commit" in this commit's commit message
> is very much a tautology. :-)
Tautol
On Wed, Jan 06, 2021 at 11:13:53AM -0800, Paul E. McKenney wrote:
> Not yet, it isn't! Well, except in -rcu. ;-)
Of course it is - saying "This commit" in this commit's commit message
is very much a tautology. :-)
> You are suggesting dropping mce_missing_cpus and just doing this?
>
> if (!cpu
On Thu, Jan 07, 2021 at 12:26:19AM +, Luck, Tony wrote:
> > Please see below for an updated patch.
>
> Yes. That worked:
>
> [ 78.946069] mce: mce_timed_out: MCE holdout CPUs (may include false
> positives): 24-47,120-143
> [ 78.946151] mce: mce_timed_out: MCE holdout CPUs (may include f
> Please see below for an updated patch.
Yes. That worked:
[ 78.946069] mce: mce_timed_out: MCE holdout CPUs (may include false
positives): 24-47,120-143
[ 78.946151] mce: mce_timed_out: MCE holdout CPUs (may include false
positives): 24-47,120-143
[ 78.946153] Kernel panic - not syncing:
On Wed, Jan 06, 2021 at 02:49:18PM -0800, Luck, Tony wrote:
> On Wed, Jan 06, 2021 at 11:17:08AM -0800, Paul E. McKenney wrote:
> > On Wed, Jan 06, 2021 at 06:39:30PM +, Luck, Tony wrote:
> > > > The "Timeout: Not all CPUs entered broadcast exception handler" message
> > > > will appear from ti
On Wed, Jan 06, 2021 at 11:17:08AM -0800, Paul E. McKenney wrote:
> On Wed, Jan 06, 2021 at 06:39:30PM +, Luck, Tony wrote:
> > > The "Timeout: Not all CPUs entered broadcast exception handler" message
> > > will appear from time to time given enough systems, but this message does
> > > not ide
On Wed, Jan 06, 2021 at 06:39:30PM +, Luck, Tony wrote:
> > The "Timeout: Not all CPUs entered broadcast exception handler" message
> > will appear from time to time given enough systems, but this message does
> > not identify which CPUs failed to enter the broadcast exception handler.
> > This
On Wed, Jan 06, 2021 at 07:32:44PM +0100, Borislav Petkov wrote:
> On Wed, Jan 06, 2021 at 09:41:02AM -0800, Paul E. McKenney wrote:
> > The "Timeout: Not all CPUs entered broadcast exception handler" message
> > will appear from time to time given enough systems, but this message does
> > not iden
> The "Timeout: Not all CPUs entered broadcast exception handler" message
> will appear from time to time given enough systems, but this message does
> not identify which CPUs failed to enter the broadcast exception handler.
> This information would be valuable if available, for example, in order t
On Wed, Jan 06, 2021 at 09:41:02AM -0800, Paul E. McKenney wrote:
> The "Timeout: Not all CPUs entered broadcast exception handler" message
> will appear from time to time given enough systems, but this message does
> not identify which CPUs failed to enter the broadcast exception handler.
> This i
The "Timeout: Not all CPUs entered broadcast exception handler" message
will appear from time to time given enough systems, but this message does
not identify which CPUs failed to enter the broadcast exception handler.
This information would be valuable if available, for example, in order to
correl
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