panic: brelse: non-VMIO buffer marked NOREUSE
cpuid = 0
time = 1756280582
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe0056be1950
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe0056be1ab0
vpanic() at vpanic+0x257/frame 0xfffffe0056be1c70
panic() at panic+0xb5/frame 0xfffffe0056be1d40
brelse() at brelse+0x1040/frame 0xfffffe0056be1de0
bufwrite() at bufwrite+0x49e/frame 0xfffffe0056be1e30
ffs_write() at ffs_write+0xa5f/frame 0xfffffe0056be1ff0
VOP_WRITE_APV() at VOP_WRITE_APV+0x28b/frame 0xfffffe0056be2210
vnode_pager_generic_putpages() at vnode_pager_generic_putpages+0x155b/frame 0xfffffe0056be2440
VOP_PUTPAGES_APV() at VOP_PUTPAGES_APV+0x87/frame 0xfffffe0056be2470
vnode_pager_putpages() at vnode_pager_putpages+0x189/frame 0xfffffe0056be2570
vm_pageout_flush() at vm_pageout_flush+0x20b/frame 0xfffffe0056be26b0
vm_pageout_cluster() at vm_pageout_cluster+0x532/frame 0xfffffe0056be29f0
vm_pageout_laundry_worker() at vm_pageout_laundry_worker+0x100e/frame 0xfffffe0056be2ef0
fork_exit() at fork_exit+0xcc/frame 0xfffffe0056be2f30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0056be2f30
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 8 tid 100080 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x25b6f77(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db> show registers
cs                        0x20
ds                        0x3b
es                        0x3b
fs                        0x13
gs                        0x1b
ss                        0x28
rax                       0x12
rcx         0xfffffe0002bf1850
rdx                          0
rbx         0xffffffff827e1820  .str.27
rsp         0xfffffe0056be1a90
rbp         0xfffffe0056be1ab0
rsi                          0
rdi         0xffffffff816260e9  printf+0x149
r8                           0
r9                  0xffffffff
r10                        0x1
r11         0xfffffe008eec4cd0
r12         0xfffffe0054008000
r13         0xfffffffffffffffe
r14         0xffffffff827e1820  .str.27
r15                          0
rip         0xffffffff8160fc1e  kdb_enter+0x6e
rflags                    0x46
kdb_enter+0x6e: movq    $0,0x25b6f77(%rip)
db>