panic: kernel diagnostic assertion "dupe == NULL" failed: file "/syzkaller/managers/multicore/kernel/sys/uvm/uvm_page.c", line 144
Starting stack trace...
panic(ffffffff830dae2a) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83092e13,ffffffff8303a138,90,ffffffff83099ec2) at __assert+0x29
uvm_pagealloc_pg(fffffd8007ccf2e0,fffffd806bdf6dd0,d963000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806bdf6dd0,d963000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806bdf6da0,1b2c61c000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806bdf6da0,1b2c61c000,76bc2000,3,20) at pmap_enter+0x389
uvm_fault_lower_lookup(ffff8000353ab5d0,ffff8000353ab608,ffff8000353ab550) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff8000353ab5d0,ffff8000353ab608,ffff8000353ab550,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd806c941dd8,1b2c61f000,0,2) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff8000353ab750,1b2c61fdd4) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000353ab750) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7d3f234acb60, count: 245
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(ffffffff830dae2a) at panic+0x1d0 sys/kern/subr_prf.c:229
__assert(ffffffff83092e13,ffffffff82fd2d0c,263,ffffffff830101cd) at __assert+0x29
uvn_flush(fffffd806cf66930,0,0,31) 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(ffff800034790cf8,0,0) at sys_sync+0xd4 sys/kern/vfs_syscalls.c:536
vfs_syncwait(ffff800034790cf8,1) at vfs_syncwait+0x44
vfs_shutdown(ffff800034790cf8) 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(ffffffff830dae2a) at panic+0x1f9 sys/kern/subr_prf.c:231
__assert(ffffffff83092e13,ffffffff8303a138,90,ffffffff83099ec2) at __assert+0x29
uvm_pagealloc_pg(fffffd8007ccf2e0,fffffd806bdf6dd0,d963000,0) at uvm_pagealloc_pg+0x521 sys/uvm/uvm_page.c:695
uvm_pagealloc(fffffd806bdf6dd0,d963000,0,3) at uvm_pagealloc+0x23e sys/uvm/uvm_page.c:912
pmap_get_ptp(fffffd806bdf6da0,1b2c61c000) at pmap_get_ptp+0x1c6
pmap_enter(fffffd806bdf6da0,1b2c61c000,76bc2000,3,20) at pmap_enter+0x389
uvm_fault_lower_lookup(ffff8000353ab5d0,ffff8000353ab608,ffff8000353ab550) at uvm_fault_lower_lookup+0x33c sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff8000353ab5d0,ffff8000353ab608,ffff8000353ab550,0) at uvm_fault_lower+0x74 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd806c941dd8,1b2c61f000,0,2) at uvm_fault+0x301 sys/uvm/uvm_fault.c:637
upageflttrap(ffff8000353ab750,1b2c61fdd4) at upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188
usertrap(ffff8000353ab750) at usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7d3f234acb60, count: 236
End of stack trace.

dump to dev 4,1 not possible