[  61.0237130] panic: kernel diagnostic assertion "uvm_page_locked_p(old_pg)" failed: file "/syzkaller/managers/netbsd-kubsan/kernel/sys/arch/x86/x86/pmap.c", line 4353 
[  61.0437312] cpu1: Begin traceback...
[  61.0637671] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
[  61.1238712] kern_assert() at netbsd:kern_assert+0x63
[  61.1839736] pmap_enter_ma() at netbsd:pmap_enter_ma+0x1f10 sys/arch/x86/x86/pmap.c:4353
[  61.2440773] pmap_enter_default() at netbsd:pmap_enter_default+0x7a sys/arch/x86/x86/pmap.c:4170
[  61.3142011] uvm_fault_lower_enter() at netbsd:uvm_fault_lower_enter+0x283 sys/uvm/uvm_fault.c:2271
[  61.3743043] uvm_fault_internal() at netbsd:uvm_fault_internal+0x2a32 uvm_fault_lower_promote sys/uvm/uvm_fault.c:2229 [inline]
[  61.3743043] uvm_fault_internal() at netbsd:uvm_fault_internal+0x2a32 uvm_fault_lower sys/uvm/uvm_fault.c:1771 [inline]
[  61.3743043] uvm_fault_internal() at netbsd:uvm_fault_internal+0x2a32 sys/uvm/uvm_fault.c:923
[  61.4444202] trap() at Mutex error:ne tmbsudte:txr_vape+c0xt1o2r_15e
[
  [6  1.641.544454364366] 6n] t-e-r-,7 3tr1:a p a(snsuemrtbiero n 6)fa i--l-e
[
 [  6 1.614.544454364636] 6d] :S kMUipTpEXin_gOW cNrEaR(shm tdxu->mmp txon_ orwneceurr)s =iv= e cpuratnhicr
[ 
 [ 61 6.145.445444336666]]  epaadn[
 
 
6[1. 4 6541.43465644]366 i] cl: oUckB Sadadn:r esUns d:ef 0ixneffd ffBef3ha4vei3bobr 3fibnc /0s tyzykpae ll e  r /:m  an a ge srls/eenept/basdad-ptkuibvesa
[
 [  6 61.14.4545444336666] n] /kineritnieal/lsizyesd/a  r:ch /0xamffd6f4f/ffafmdf8642/28db4_ema1c4h
[[   6 16.1.4545444433666]6 ]d esp.hacr:e15d 3:h2o4ld, s m:e mb  er   a  cc e  ss    w it h  in 0 m eisxaclliugsnieved: a d  dr e  s s  0  x1    fo  r   ty 0p[
 
 [ 61 .641.544454346636] 6]e  'sshtarruesc tw ax8n6t_ed6:4_ f r a  me  '  w h i c  h  r e q  u0ir eesxc l8 usbyivtee : a l i gn  m e nt 
 [
  
6[1  .46154.44354646]36 6  ]   Fa u l  t0
[ 
[  61 6.41.54445346463]66 e]d c iurn remintd- tcrpau ce :ba c k  ;  a  bo r  t in g . .  .
 
[[   6 16.1.44554444336666] ] f a0t all asbrte ahkelpdoi:n t   t  ra  p   i n  s u  pe r  vi s0o
[
 [  6 61.14.544544346366]6 ]r c muorrdeen
[
 [  6 611..44554444363666]] t t lrawpp  t y:p e0 x1f fcffodfe3 4e0 3r9eibp7 06x6f0 fflfafsftf hf8e0l2d1:dd b00d 0c00s0 00x080 0r0f0l00a0gs0 000
[ 
 [6  16.41.544454364636] 6x] 2l86as tcr 2l o0ckx2ed0 00 1:f 400xf iflfefvffelf f08 2r2s9pac 08fx ffufnflbo0c8k0ebd*3a:7 02xb7f0f
f
[[   6 161.4.544544346366]6]  cfurfflwffp8 20x2f9affcbff63
[[   6 16.1.4544544343666]6 ]4 oew4an5e5r b8fie0el dpi d : 7 02.010 00l0ow00e0s0t 0k0s00t0a0ck00 0 xwaffitff/bs0pi80nb: 3 a7 0 2 c 0 [
 Stopped in pid 72.1 (syz-executor.2) at netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0xd1 sys/ddb/db_panic.c:67
vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
isAlreadyReported() at netbsd:isAlreadyReported
HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc
HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408
db_nextframe() at netbsd:db_nextframe+0x6f6 sys/arch/amd64/amd64/db_machdep.c:153
db_stack_trace_print() at netbsd:db_stack_trace_print+0x2c4 sys/arch/x86/x86/db_trace.c:277
db_panic() at netbsd:db_panic+0x8b x86_curcpu sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/cpu.h:67 [inline]
db_panic() at netbsd:db_panic+0x8b sys/ddb/db_panic.c:57
vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
kern_assert() at netbsd:kern_assert+0x63
pmap_enter_ma() at netbsd:pmap_enter_ma+0x1f10 sys/arch/x86/x86/pmap.c:4353
pmap_enter_default() at netbsd:pmap_enter_default+0x7a sys/arch/x86/x86/pmap.c:4170
uvm_fault_lower_enter() at netbsd:uvm_fault_lower_enter+0x283 sys/uvm/uvm_fault.c:2271
uvm_fault_internal() at netbsd:uvm_fault_internal+0x2a32 uvm_fault_lower_promote sys/uvm/uvm_fault.c:2229 [inline]
uvm_fault_internal() at netbsd:uvm_fault_internal+0x2a32 uvm_fault_lower sys/uvm/uvm_fault.c:1771 [inline]
uvm_fault_internal() at netbsd:uvm_fault_internal+0x2a32 sys/uvm/uvm_fault.c:923
trap() at netbsd:trap+0x1215 sys/arch/amd64/amd64/trap.c:534
--- trap (number 6) ---
[  61.4544366] Skipping crash dump on recursive panic
[  61.4544366] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x1 for type 'struct x86_64_frame' which requires 8 byte alignment

[  61.4544366] Faulted in mid-traceback; aborting...
[  61.4544366] fatal breakpoint trap in supervisor mode
[  61.4544366] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x20001f40 ilevel 0x8 rsp 0xffffb080b3a71870
[  61.4544366] curlwp 0xfffff34e4a55b8e0 pid 72.1 lowest kstack 0xffffb080b3a702c0
Stopped in pid 72.1 (syz-executor.2) at netbsd:breakpoint+0x5:  leave