./file0 3x3g./file0/dev/bpf@ tap7-./file0 panic: kernel diagnostic assertion "(pg->pg_flags & PG_BUSY) == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/arch/amd64/amd64/pmap.c", line 1422 Starting stack trace... panic(ffffffff8295855f) at panic+0x16f sys/kern/subr_prf.c:229 __assert(ffffffff8291090e,ffffffff82935957,58e,ffffffff828bac6f) at __assert+0x29 sys/kern/subr_prf.c:157 pmap_destroy(fffffd806a98f0f8) at pmap_destroy+0x2c4 sys/arch/amd64/amd64/pmap.c:1422 uvm_map_teardown(fffffd806abb0380) at uvm_map_teardown+0x305 sys/uvm/uvm_map.c:2557 uvmspace_free(fffffd806abb0380) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3461 vm_teardown(ffff80002dafeff0) at vm_teardown+0x15c sys/dev/vmm/vmm.c:555 vm_terminate(ffff80002daff290) at vm_terminate+0x124 sys/dev/vmm/vmm.c:688 vmmioctl(a00,80045604,ffff80002daff290,1,ffff8000ffff67c8) at vmmioctl+0x2a1 sys/dev/vmm/vmm.c:248 VOP_IOCTL(fffffd807e814a28,80045604,ffff80002daff290,1,fffffd807f7d37b8,ffff8000ffff67c8) at VOP_IOCTL+0x9a sys/kern/vfs_vops.c:264 vn_ioctl(fffffd8073d75610,80045604,ffff80002daff290,ffff8000ffff67c8) at vn_ioctl+0xc0 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff8000ffff67c8,ffff80002daff470,ffff80002daff3c0) at sys_ioctl+0x4a9 syscall(ffff80002daff470) at syscall+0x8cf mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002daff470) at syscall+0x8cf sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x43a5876ebb0, count: 244 End of stack trace.