| LOR |
lock order reversal:
1st 0xffffff0004776020 process slock (process slock) @ sys/kern/kern_proc.c:788
2nd 0xffffff000444a238 uart_hwmtx (uart_hwmtx) @ sys/dev/uart/uart_cpu.h:92
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
_witness_debugger() at _witness_debugger+0x2e
witness_checkorder() at witness_checkorder+0x81e
_mtx_lock_spin_flags() at _mtx_lock_spin_flags+0x94
uart_cnputc() at uart_cnputc+0x40
cnputc() at cnputc+0x49
putchar() at putchar+0x6a
kvprintf() at kvprintf+0x81
printf() at printf+0xa4
calcru1() at calcru1+0x1a0
calcru() at calcru+0xda
fill_kinfo_proc() at fill_kinfo_proc+0x5f8
sysctl_out_proc() at sysctl_out_proc+0x7d
sysctl_kern_proc() at sysctl_kern_proc+0x228
sysctl_root() at sysctl_root+0xe3
userland_sysctl() at userland_sysctl+0x11c
__sysctl() at __sysctl+0xaa
syscall() at syscall+0x1e7
Xfast_syscall() at Xfast_syscall+0xab
--- syscall (202, FreeBSD ELF64, __sysctl), rip = 0x8009431fc, rsp = 0x7fffffffda08, rbp = 0xffffdb01 ---
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