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Date:      Fri, 24 Jan 2020 14:42:50 +0100
From:      Hans Petter Selasky <hps@selasky.org>
To:        Cy Schubert <Cy.Schubert@cschubert.com>
Cc:        freebsd-current@freebsd.org, Mark Johnston <markj@freebsd.org>
Subject:   Re: Powerd Panic
Message-ID:  <77cdb188-a47e-4a0d-a09f-c04377cda084@selasky.org>
In-Reply-To: <202001241338.00ODchS7008979@slippy.cwsent.com>
References:  <202001240701.00O71L0F005850@slippy.cwsent.com> <036a5750-1af7-b83d-e141-f43585a1b8d2@selasky.org> <202001241302.00OD2d44008368@slippy.cwsent.com> <629a6d48-cf47-e76b-81a0-db29d2400b2b@selasky.org> <202001241338.00ODchS7008979@slippy.cwsent.com>

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On 2020-01-24 14:38, Cy Schubert wrote:
> In message <629a6d48-cf47-e76b-81a0-db29d2400b2b@selasky.org>, Hans Petter
> Sela
> sky writes:
>> Hi,
>>
>> I think this patch will fix your issue. Can you check?
>> https://svnweb.freebsd.org/changeset/base/357050
>>
>> Look like td->td_oncpu is invalid.
>>
>>
>>>          pc = cpuid_to_pcpu[td->td_oncpu]; /* pcpu_find(td->td_oncpu); */
>>>
>>>          rm_tracker_add(pc, tracker);
>>
>>
>>
>> And thanks for running -current ;-)
> 
> That patch is already there. All my machines are at r357066.
> 

OK,

so maybe there are more corner cases to that patch.

Adding Mark.

Could you compile a kernel with debugging symbols, get a core dump and then:

print td->td_oncpu
print pc

from kgdb83 ?

--HPS



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