panic: deadlres_td_sleep_q: possible deadlock detected on RPI3

[Mark Millard]

On 2020-Jan-30, at 09:17, bob prohaska <fbsd at www.zefox.net> wrote:

> On Thu, Jan 30, 2020 at 08:44:36AM -0800, Mark Millard wrote:
>> 
>> Does kldstat show mac_ntpd as loaded?
>> 
> Seemingly not:
> bob at www:/usr/src % kldstat
> Id Refs Address                Size Name
> 1   15 0xffff000000000000  14f8a40 kernel
> 2    1 0xffff00005a600000    21000 fdescfs.ko
> 3    1 0xffff00005a621000    21000 uhid.ko
> 4    1 0xffff00005a642000    21000 ums.ko
> 5    1 0xffff00005a663000    21000 uplcom.ko
> 6    1 0xffff00005a684000    22000 ucom.ko
> bob at www:/usr/src %
> 
>> On 4 arm systems here, 2 boot loading mac_ntpd,
>> 2 boot without loading mac_ntpd, and ntp works
>> for all. But this is head -r356426 .
>> 
> Likewise head- here also, not 12, time looks ok.
> 
> I'm using system defaults for ntp.

If you want to risk crashing/hanging-up the machine, you could
try to "kldload mac_ntpd" and see if it loads well or not.


===
Mark Millard
marklmi at yahoo.com
( dsl-only.net <http://dsl-only.net/> went
away in early 2018-Mar)