panic: kernel diagnostic assertion "pg->wire_count == 1" failed
: file "/syzkaller/managers/main/kernel/sys/kern/vfs_biomem.c",
 line 310
Starting stack trace...
panic(ffffffff830b56e5) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff83067daa,ffffffff830780ce,136,ffffffff82ff3351) at __assert+0x29
buf_free_pages(fffffd806cf32c28) at buf_free_pages+0x23d sys/kern/vfs_biomem.c:299
buf_dealloc_mem(fffffd806cf32c28) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179
buf_put(fffffd806cf32c28) at buf_put+0x1dc sys/kern/vfs_bio.c:127
brelse(fffffd806cf32c28) at brelse+0x395 sys/kern/vfs_bio.c:944
vinvalbuf(fffffd805dc280f8,2,fffffd807f7d77b8,ffff80002a497720,0,ffffffffffffffff) at vinvalbuf+0x52c sys/kern/vfs_subr.c:2022
ffs_truncate(fffffd805c554f10,0,4,fffffd807f7d77b8) at ffs_truncate+0xf63
ufs_rmdir(ffff80002a5c8e98) at ufs_rmdir+0x374 sys/ufs/ufs/ufs_vnops.c:1265
VOP_RMDIR(fffffd80648ce640,fffffd805dc280f8,ffff80002a5c8f78) at VOP_RMDIR+0x19a sys/kern/vfs_vops.c:413
dounlinkat(ffff80002a497720,ffffff9c,76252f731d30,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1885
syscall(ffff80002a5c90f0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x76252f731d20, count: 244
End of stack trace.