[ 488551.0264808] fatal breakpoint trap in supervisor mode                                                                                       
[ 488551.0264808] trap type 1 code 0 rip 0xffffffff80235385 cs 0x8 rflags 0x202 cr2 0x72a8b400d833 ilevel 0x8 rsp 0xffff9b0839eacb48             
[ 488551.0264808] curlwp 0xffff943d0b305480 pid 0.3 lowest kstack 0xffff9b0839ea82c0                                                             
Stopped in pid 0.3 (system) at  netbsd:breakpoint+0x5:  leave                                                                                    
breakpoint() at netbsd:breakpoint+0x5                                                                                                            
comintr() at netbsd:comintr+0x7e0                                                                                                                
intr_kdtrace_wrapper() at netbsd:intr_kdtrace_wrapper+0x26                                                                                       
Xhandle_ioapic_edge1() at netbsd:Xhandle_ioapic_edge1+0x75                                                                                       
--- interrupt ---                                                                                                                                
mutex_vector_enter() at netbsd:mutex_vector_enter+0x243                                                                                          
pool_get() at netbsd:pool_get+0x26                                                                                                               
pool_cache_get_slow() at netbsd:pool_cache_get_slow+0x95                                                                                         
pool_cache_get_paddr() at netbsd:pool_cache_get_paddr+0xac                                                                                       
m_get() at netbsd:m_get+0x29                                                                                                                     
m_copy_internal() at netbsd:m_copy_internal+0x101                                                                                                
ip_forward() at netbsd:ip_forward+0xcf                                                                                                           
ipintr() at netbsd:ipintr+0xa80                                                                                                                  
softint_dispatch() at netbsd:softint_dispatch+0x95                                                                                               
DDB lost frame for netbsd:Xsoftintr+0x4c, trying 0xffff9b0839ead0f0                                                                              
Xsoftintr() at netbsd:Xsoftintr+0x4c                                                                                                             
--- interrupt ---                                                                                                                                
0:                                                                                                                                               
ds          5c20                                                                                                                                 
es          2                                                                                                                                    
fs          524                                                                                                                                  
gs          5230                                                                                                                                 
rdi         ffffffff81845120    x86_io                                                                                                           
rsi         800                                                                                                                                  
rbp         ffff9b0839eacb48
rbx         ffff9b003df8c01e        
rdx         7f                      
rcx         22                      
rax         1                       
r8          400000000000000         
r9          400000000000000         
r10         ffff943a3aa2b0c8        
r11         8000000c                
r12         ffff94360e722790        
r13         7f1                     
r14         cc                      
r15         ffff94360e7226c0        
rip         ffffffff80235385    breakpoint+0x5                          
cs          8                       
rflags      202                     
rsp         ffff9b0839eacb48        
ss          0                       
netbsd:breakpoint+0x5:  leave       
db{0}> btrace                       
No such command: btrace             
db{0}> bt                           
breakpoint() at netbsd:breakpoint+0x5                                   
comintr() at netbsd:comintr+0x7e0                                       
intr_kdtrace_wrapper() at netbsd:intr_kdtrace_wrapper+0x26              
Xhandle_ioapic_edge1() at netbsd:Xhandle_ioapic_edge1+0x75              
--- interrupt ---                   
mutex_vector_enter() at netbsd:mutex_vector_enter+0x243                 
pool_get() at netbsd:pool_get+0x26                                      
pool_cache_get_slow() at netbsd:pool_cache_get_slow+0x95                
pool_cache_get_paddr() at netbsd:pool_cache_get_paddr+0xac              
m_get() at netbsd:m_get+0x29        
m_copy_internal() at netbsd:m_copy_internal+0x101                       
ip_forward() at netbsd:ip_forward+0xcf                                  
ipintr() at netbsd:ipintr+0xa80                                         
softint_dispatch() at netbsd:softint_dispatch+0x95                      
DDB lost frame for netbsd:Xsoftintr+0x4c, trying 0xffff9b0839ead0f0                                                                              
Xsoftintr() at netbsd:Xsoftintr+0x4c                                    
--- interrupt ---