panic: kernel diagnostic assertion "next != _PSLIST_POISON"

[Frank Kardel <kardel%netbsd.org@localhost>]

Has anyone seen this panic recently?

Seen in -current-20170311, i386, Soekris 6501.

panic: kernel diagnostic assertion "next != _PSLIST_POISON" failed: file 
"/fs/raid2a/src/NetBSD/cur/src/sys/sys/pslist.h", line 270
cpu0: Begin traceback...
vpanic(c0cb1784,dba43dac,dba43e2c,c09e0d1e,c0cb1784,c0cb16d3,c0cb681b,c0cb6458,10e,a8) 
at netbsd:vpanic+0x121
ch_voltag_convert_in(c0cb1784,c0cb16d3,c0cb681b,c0cb6458,10e,a8,0,c3d70578,c09e0988,c3d70348) 
at netbsd:ch_voltag_convert_in
sysctl_iflist(4,cbd8cf60,c7,cbd8cff9,c33c06c0,c7,c090f986,0,cbd8cf60,a43e90) 
at c09e0d1e
sysctl_rtable(dba43f0c,3,afe01000,dba43efc,0,0,dba43f00,c3de1560,c3c11c0c,3) 
at c09e129c
sysctl_dispatch(dba43f00,6,afe01000,dba43efc,0,0,dba43f00,c3de1560,c3c11c0c,dba43efc) 
at netbsd:sysctl_dispatch+0xbd
sys___sysctl(c3de1560,dba43f68,dba43f60,7dd51000,c3de1560,dba43f60,dba43f68,0,0,b0094fb0) 
at netbsd:sys___sysctl+0xe3
syscall() at netbsd:syscall+0x257
--- syscall (number 202) ---
b00736f7:
cpu0: End traceback...

Frank