panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830db999) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff8308de81,ffffffff83036515,90,ffffffff83096219) at __assert+0x29
uvm_pagealloc_pg(fffffd80087665a0,fffffd807ec598e8,70cb65000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd807ec598e8,70cb65000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd807ec598b8,e196cb5c000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd807ec598b8,e196cb5c000,6fc14000,3,20) at pmap_enter+0x389
uvm_fault_upper_lookup(ffff800037299810,ffff800037299848,ffff800037299710,ffff800037299790) at uvm_fault_upper_lookup+0x389
uvm_fault(fffffd8058df41c8,e196cb5e000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605
upageflttrap(ffff800037299990,e196cb5efa8) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff800037299990) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x6f9602c836e0, count: 246
End of stack trace.
syncing disks...panic: kernel diagnostic assertion "rw_write_held(uobj->vmobjlock)" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_vnode.c", line 611
Starting stack trace...
panic(ffffffff830db999) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff8308de81,ffffffff82fd2fe9,263,ffffffff8300de52) at __assert+0x29
uvn_flush(fffffd806cf08b60,0,0,31) at uvn_flush+0xdfd sys/uvm/uvm_vnode.c:754
uvm_vnp_sync(ffff800000a66c00) at uvm_vnp_sync+0x1e7 sys/uvm/uvm_vnode.c:1542
sys_sync(ffff800034b98cd0,0,0) at sys_sync+0xd4 sys/kern/vfs_syscalls.c:536
vfs_syncwait(ffff800034b98cd0,1) at vfs_syncwait+0x44
vfs_shutdown(ffff800034b98cd0) at vfs_shutdown+0x97 sys/kern/vfs_subr.c:1791
boot(100) at boot+0x15c sys/arch/amd64/amd64/machdep.c:907
reboot(100) at reboot+0xb1
panic(ffffffff830db999) at panic+0x1f9 sys/kern/subr_prf.c:231
__assert(ffffffff8308de81,ffffffff83036515,90,ffffffff83096219) at __assert+0x29
uvm_pagealloc_pg(fffffd80087665a0,fffffd807ec598e8,70cb65000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd807ec598e8,70cb65000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd807ec598b8,e196cb5c000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd807ec598b8,e196cb5c000,6fc14000,3,20) at pmap_enter+0x389
uvm_fault_upper_lookup(ffff800037299810,ffff800037299848,ffff800037299710,ffff800037299790) at uvm_fault_upper_lookup+0x389
uvm_fault(fffffd8058df41c8,e196cb5e000,0,1) at uvm_fault+0x169 sys/uvm/uvm_fault.c:605
upageflttrap(ffff800037299990,e196cb5efa8) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff800037299990) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x6f9602c836e0, count: 237
End of stack trace.

dump to dev 4,1 not possible