panic: Too many early devmap mappings

An RPi3 running -current updated on Jan. 10 installed a new world/kernel and 
when rebooted promptly crashed with 

---<<BOOT>>---
panic: Too many early devmap mappings
cpuid = 0
time = 1
KDB: stack backtrace:
(null)() at 0xffff00000011ad90
	 pc = 0xffff000000760f70  lr = 0xffff00000011ad90
	 sp = 0xffff0000011df330  fp = 0xffff0000011df530

(null)() at 0xffff00000045c2d4
	 pc = 0xffff00000011ad90  lr = 0xffff00000045c2d4
	 sp = 0xffff0000011df540  fp = 0xffff0000011df5a0

(null)() at 0xffff00000045c07c
	 pc = 0xffff00000045c2d4  lr = 0xffff00000045c07c
	 sp = 0xffff0000011df5b0  fp = 0xffff0000011df660

(null)() at 0xffff0000007d8380
	 pc = 0xffff00000045c07c  lr = 0xffff0000007d8380
	 sp = 0xffff0000011df670  fp = 0xffff0000011df670

(null)() at 0xffff00000075dc98
	 pc = 0xffff0000007d8380  lr = 0xffff00000075dc98
	 sp = 0xffff0000011df680  fp = 0xffff0000011df6a0

(null)() at 0xffff0000007710e4
	 pc = 0xffff00000075dc98  lr = 0xffff0000007710e4
	 sp = 0xffff0000011df6b0  fp = 0xffff0000011df6d0

(null)() at 0xffff00000028850c
	 pc = 0xffff0000007710e4  lr = 0xffff00000028850c
	 sp = 0xffff0000011df6e0  fp = 0xffff0000011df7a0

(null)() at 0xffff0000007c8788
	 pc = 0xffff00000028850c  lr = 0xffff0000007c8788
	 sp = 0xffff0000011df7b0  fp = 0xffff0000011df830

(null)() at 0xffff00000028a64c
	 pc = 0xffff0000007c8788  lr = 0xffff00000028a64c
	 sp = 0xffff0000011df840  fp = 0xffff0000011df850

(null)() at 0xffff00000039b340
	 pc = 0xffff00000028a64c  lr = 0xffff00000039b340
	 sp = 0xffff0000011df860  fp = 0xffff0000011df870

(null)() at 0xffff0000004a6950
	 pc = 0xffff00000039b340  lr = 0xffff0000004a6950
	 sp = 0xffff0000011df880  fp = 0xffff0000011df8b0

(null)() at 0xffff00000076d73c
	 pc = 0xffff0000004a6950  lr = 0xffff00000076d73c
	 sp = 0xffff0000011df8c0  fp = 0xffff0000011dfa00

(null)() at 0xffff00000000089c
	 pc = 0xffff00000076d73c  lr = 0xffff00000000089c
	 sp = 0xffff0000011dfa10  fp = 0x0000000000000000

KDB: enter: panic
[ thread pid 0 tid 0 ]
Stopped at      0xffff0000004a6550
db> reboot
cpu_reset failed

It had to be power-cycled to restart. It came back up readily with
kernel.old, which reports main-c255664-g4d64c7243d26 compiled Jan 9.

In particular, how does one recognize which revision fixes 
this problem, assuming it's a bug and not operator error? 
Presumably, it'll take at least several days to reach git.

Thanks for reading,

bob prohaska

_______________________________________________
[email protected] mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-arm
To unsubscribe, send any mail to "[email protected]"