panic: vpanic: kernel diagnostic assertion "!_kernel_lock_held()" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_fork.c", line 674
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*  4171  82109      0           0  0x4000000    1  syz-executor.0
 184247  52566      0         0x2          0    0  syz-executor.6
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff82751deb) at panic+0x177 sys/kern/subr_prf.c:198
__assert(ffffffff827cd2be,ffffffff827b3726,2a2,ffffffff827874a1) at __assert+0x25 sys/kern/subr_prf.c:157
proc_trampoline_mp() at proc_trampoline_mp+0x131
end trace frame: 0x0, count: 11
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