[ 37.9615453] panic: LOCKDEBUG: Reader / writer lock error: rw_vector_tryenter,585: assertion failed: (op != RW_READER && RW_OWNER(rw) == curthread) || (op == RW_READER && RW_COUNT(rw) != 0) [ 37.9758962] cpu1: Begin traceback... [ 37.9959288] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336 [ 38.0560116] snprintf() at netbsd:snprintf [ 38.1160983] lockdebug_abort1() at netbsd:lockdebug_abort1+0x16a sys/kern/subr_lockdebug.c:799 [ 38.1861914] rw_abort() at netbsd:rw_abort+0x50 sys/kern/kern_rwlock.c:209 [ 38.2462772] rw_tryenter() at netbsd:rw_tryenter+0x13c sys/kern/kern_rwlock.c:587 [ 38.3063611] vm_map_lock_try() at netbsd:vm_map_lock_try+0x3c sys/uvm/uvm_map.c:682 [ 38.3664487] uvm_map_prepare() at netbsd:uvm_map_prepare+0xc0 sys/uvm/uvm_map.c:1170 [ 38.4165183] uvm_map() at netbsd:uvm_map+0xa4 sys/uvm/uvm_map.c:1099 [ 38.4866142] uvm_mmap.part.0() at netbsd:uvm_mmap.part.0+0x32a [ 38.5466978] sys_mmap() at netbsd:sys_mmap+0x809 uvm_mmap sys/uvm/uvm_mmap.c:401 [inline] [ 38.5466978] sys_mmap() at netbsd:sys_mmap+0x809 sys/uvm/uvm_mmap.c:401 [ 38.6067824] sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline] [ 38.6067824] sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77 [ 38.6668679] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline] [ 38.6668679] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline] [ 38.6668679] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138 [ 38.6868956] --- syscall (number 198) --- [ 38.6868956] Skipping crash dump on recursive panic [ 38.6969075] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0x7 for type 'struct x86_64_frame' which requires 8 byte alignment [ 38.7169352] Faulted in mid-traceback; aborting... [ 38.7169352] fatal breakpoint trap in supervisor mode [ 38.7269481] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x282 cr2 0x775c19400000 ilevel 0 rsp 0xffff9c00a6b8ccc0 [ 38.7369619] curlwp 0xffffc95592e1dba0 pid 492.3 lowest kstack 0xffff9c00a6b8a2c0 Stopped in pid 492.3 (syz-executor.0) at netbsd:breakpoint+0x5: leave ? breakpoint() at netbsd:breakpoint+0x5 db_panic() at netbsd:db_panic+0x109 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+0xa3 x86_curcpu sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/cpu.h:67 [inline] db_panic() at netbsd:db_panic+0xa3 sys/ddb/db_panic.c:57 vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336 snprintf() at netbsd:snprintf lockdebug_abort1() at netbsd:lockdebug_abort1+0x16a sys/kern/subr_lockdebug.c:799 rw_abort() at netbsd:rw_abort+0x50 sys/kern/kern_rwlock.c:209 rw_tryenter() at netbsd:rw_tryenter+0x13c sys/kern/kern_rwlock.c:587 vm_map_lock_try() at netbsd:vm_map_lock_try+0x3c sys/uvm/uvm_map.c:682 uvm_map_prepare() at netbsd:uvm_map_prepare+0xc0 sys/uvm/uvm_map.c:1170 uvm_map() at netbsd:uvm_map+0xa4 sys/uvm/uvm_map.c:1099 uvm_mmap.part.0() at netbsd:uvm_mmap.part.0+0x32a sys_mmap() at netbsd:sys_mmap+0x809 uvm_mmap sys/uvm/uvm_mmap.c:401 [inline] sys_mmap() at netbsd:sys_mmap+0x809 sys/uvm/uvm_mmap.c:401 sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline] sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77 syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138 --- syscall (number 198) --- [ 38.7469769] Skipping crash dump on recursive panic [ 38.7469769] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x7 for type 'struct x86_64_frame' which requires 8 byte alignment [ 38.7469769] Faulted in mid-traceback; aborting... [ 38.7469769] fatal breakpoint trap in supervisor mode [ 38.7469769] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x282 cr2 0x775c19400000 ilevel 0x8 rsp 0xffff9c00a6b8b9c0 [ 38.7469769] curlwp 0xffffc95592e1dba0 pid 492.3 lowest kstack 0xffff9c00a6b8a2c0 Stopped in pid 492.3 (syz-executor.0) at netbsd:breakpoint+0x5: leave