uvm_fault(0xfffffd806ce99468, 0x7f9000000000, 0, 2) -> e
kernel: page fault trap, code=2
Stopped at pmap_page_remove+0x43d: xchgq %rax,0(%r12,%rcx,1)
TID PID UID PRFLAGS PFLAGS CPU COMMAND
pmap_page_remove(fffffd80072e8b80) at pmap_page_remove+0x43d _atomic_swap_64 sys/arch/amd64/compile/SYZKALLER/obj/machine/atomic.h:117 [inline]
pmap_page_remove(fffffd80072e8b80) at pmap_page_remove+0x43d sys/arch/amd64/amd64/pmap.c:2014
uvm_anfree(fffffd80710f7870) at uvm_anfree+0xd8 sys/uvm/uvm_anon.c:111
amap_wipeout(fffffd807a636058) at amap_wipeout+0x246 sys/uvm/uvm_amap.c:-1
uvm_unmap_detach(ffff80003c9018e0,0) at uvm_unmap_detach+0x8a sys/uvm/uvm_map.c:1359
uvm_map_teardown(fffffd806ce99468) at uvm_map_teardown+0x357 sys/uvm/uvm_map.c:2536
exit1(ffff80002f0bfcb0,0,0,3) at exit1+0x6e6 sys/kern/kern_exit.c:259
proc_suspend_check_locked(ffff80002f0bfcb0,0) at proc_suspend_check_locked+0x4ba sys/kern/kern_sig.c:2235
userret(ffff80002f0bfcb0) at userret+0x8c proc_suspend_check sys/kern/kern_sig.c:-1 [inline]
userret(ffff80002f0bfcb0) at userret+0x8c sys/kern/kern_sig.c:2194
syscall(ffff80003c901b50) at syscall+0xa56 mi_syscall_return sys/sys/syscall_mi.h:203 [inline]
syscall(ffff80003c901b50) at syscall+0xa56 sys/arch/amd64/amd64/trap.c:804
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x76f12ce84b50, count: 5
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