Re: svn commit: r308565 - head/sys/kern

2016-11-12 Thread Gary Jennejohn 
On Sat, 12 Nov 2016 08:40:28 -0800
John Baldwin  wrote:

> On 11/12/16 1:28 AM, Gary Jennejohn wrote:
> > On Sat, 12 Nov 2016 00:23:09 + (UTC)
> > John Baldwin  wrote:
> >   
> >> Author: jhb
> >> Date: Sat Nov 12 00:23:09 2016
> >> New Revision: 308565
> >> URL: https://svnweb.freebsd.org/changeset/base/308565
> >>
> >> Log:
> >>   Allow scheduling during early boot.
> >>   
> >>   - Send IPI wakeups once SMP is started even if cold is true.
> >>   - Permit preemptions when cold is true.
> >>   
> >>   These changes are needed for EARLY_AP_STARTUP.
> >>   
> >>   MFC after:   2 weeks
> >>   Sponsored by:Netflix
> >>
> >> Modified:
> >>   head/sys/kern/sched_4bsd.c
> >>  
> > 
> > Thank you, jhb!  
> 
> I believe the previous change fixed the original issue you
> reported as I was finally able to reproduce a similar hang
> with sched_bind when igb0 was pinning its interrupts.  It was
> quite a bit of a PITA to track down. :(  If you get a chance,
> can you please verify that 4BSD + EARLY_AP_STARTUP now works for
> you?
> 

I'm now happily running this combination of options.

-- 
Gary Jennejohn
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Re: svn commit: r308565 - head/sys/kern

2016-11-12 Thread John Baldwin 
On 11/12/16 1:28 AM, Gary Jennejohn wrote:
> On Sat, 12 Nov 2016 00:23:09 + (UTC)
> John Baldwin  wrote:
> 
>> Author: jhb
>> Date: Sat Nov 12 00:23:09 2016
>> New Revision: 308565
>> URL: https://svnweb.freebsd.org/changeset/base/308565
>>
>> Log:
>>   Allow scheduling during early boot.
>>   
>>   - Send IPI wakeups once SMP is started even if cold is true.
>>   - Permit preemptions when cold is true.
>>   
>>   These changes are needed for EARLY_AP_STARTUP.
>>   
>>   MFC after: 2 weeks
>>   Sponsored by:  Netflix
>>
>> Modified:
>>   head/sys/kern/sched_4bsd.c
>>
> 
> Thank you, jhb!

I believe the previous change fixed the original issue you
reported as I was finally able to reproduce a similar hang
with sched_bind when igb0 was pinning its interrupts.  It was
quite a bit of a PITA to track down. :(  If you get a chance,
can you please verify that 4BSD + EARLY_AP_STARTUP now works for
you?

-- 
John Baldwin
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Re: svn commit: r308565 - head/sys/kern

2016-11-12 Thread Gary Jennejohn 
On Sat, 12 Nov 2016 00:23:09 + (UTC)
John Baldwin  wrote:

> Author: jhb
> Date: Sat Nov 12 00:23:09 2016
> New Revision: 308565
> URL: https://svnweb.freebsd.org/changeset/base/308565
> 
> Log:
>   Allow scheduling during early boot.
>   
>   - Send IPI wakeups once SMP is started even if cold is true.
>   - Permit preemptions when cold is true.
>   
>   These changes are needed for EARLY_AP_STARTUP.
>   
>   MFC after:  2 weeks
>   Sponsored by:   Netflix
> 
> Modified:
>   head/sys/kern/sched_4bsd.c
> 

Thank you, jhb!

-- 
Gary Jennejohn
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