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Subject: Re: svn commit: r308565 - head/sys/kern
To: gljennjohn@gmail.com
References: <201611120023.uAC0N9fe018532@repo.freebsd.org>
 <20161112102833.5cc951b8@ernst.home>
Cc: src-committers@freebsd.org, svn-src-all@freebsd.org,
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From: John Baldwin <jhb@FreeBSD.org>
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Date: Sat, 12 Nov 2016 08:40:28 -0800
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On 11/12/16 1:28 AM, Gary Jennejohn wrote:
> On Sat, 12 Nov 2016 00:23:09 +0000 (UTC)
> John Baldwin <jhb@FreeBSD.org> 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