panic: malloc: out of space in kmem_map
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*149799   1663      0         0x2          0    0  syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:208
malloc(200000,2a,9) at malloc+0xa79 sys/kern/kern_malloc.c:242
kcovioctl(1b1300,80084b01,ffff8000149f8670,3,ffff800014a04720) at kcovioctl+0xe6 kd_init sys/dev/kcov.c:405 [inline]
kcovioctl(1b1300,80084b01,ffff8000149f8670,3,ffff800014a04720) at kcovioctl+0xe6 sys/dev/kcov.c:298
VOP_IOCTL(fffffd8027e35888,80084b01,ffff8000149f8670,3,fffffd803f7c6c00,ffff800014a04720) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:290
vn_ioctl(fffffd802ed2b5b0,80084b01,ffff8000149f8670,ffff800014a04720) at vn_ioctl+0xc9 sys/kern/vfs_vnops.c:512
sys_ioctl(ffff800014a04720,ffff8000149f87b0,ffff8000149f87a0) at sys_ioctl+0x638
syscall(ffff8000149f8850) at syscall+0x541
Xsyscall(6,36,7f7ffffd3438,36,3,a3ee6418890) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffd2f50, count: 6
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