syzbot

panic: vop_generic_
badop
Starting stack trace...
panic(ffffffff82777bc7) at panic+0x159 sys/kern/subr_prf.c:229
vop_generic_badop(ffff80003287b018) at vop_generic_badop+0x1f sys/kern/vfs_default.c:133
VOP_STRATEGY(fffffd805b3e16e0,fffffd80711db7f0) at VOP_STRATEGY+0x9f sys/kern/vfs_vops.c:628
bwrite(fffffd80711db7f0) at bwrite+0x1eb sys/kern/vfs_bio.c:760
VOP_BWRITE(fffffd80711db7f0) at VOP_BWRITE+0x4e sys/kern/vfs_vops.c:640
ufs_mkdir(ffff80003287b2b0) at ufs_mkdir+0x6c4 sys/ufs/ufs/ufs_vnops.c:1235
VOP_MKDIR(fffffd80606741e0,ffff80003287b410,ffff80003287b440,ffff80003287b340) at VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388
domkdirat(ffff80002a6d2818,ffffff9c,7604c10697d0,1ff) at domkdirat+0x125 sys/kern/vfs_syscalls.c:3073
syscall(ffff80003287b5b0) at syscall+0x543 sys/arch/amd64/amd64/trap.c:606
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7604c1069840, count: 247
End of stack trace.