login: KDB: enter: sysctl debug.kdb.enter
[ thread pid 4666 tid 102481 ]
Stopped at      kdb_enter+0x78: ori     r0, r0, 0x0
db> cont
panic: mi_switch: switch in a critical section
cpuid = 36
time = 1551992388
KDB: stack backtrace:
0xc00800017be0c500: at kdb_backtrace+0x64
0xc00800017be0c610: at vpanic+0x25c
0xc00800017be0c6c0: at panic+0x3c
0xc00800017be0c6f0: at mi_switch+0x250
0xc00800017be0c770: at ast+0x1d0
0xc00800017be0c810: user SC trap by 0x8103fe540: srr1=0x900000000000f032
            r1=0xfffffbfffdb80 cr=0x28000222 xer=0 ctr=0x8103fe530 r2=0x81046fa00
KDB: enter: panic
[ thread pid 4666 tid 102481 ]
Stopped at      kdb_enter+0x78: ori     r0, r0, 0x0
db> cont
Uptime: 16m42s
Dumping 1812 out of 130868 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%
Dump complete
[ 1372.265364441,5] OPAL: Reboot request...