Nov 26 18:59:17 ci2-netbsd-kubsan-4 getty[527]: /dev/ttyE3: Device not configured NetBSD/amd64 (ci2-netbsd-kubsan-4.c.syzkaller.internal) (console) login: Nov 26 18:59:17 ci2-netbsd-kubsan-4 getty[556]: /dev/ttyE2: Device not configured Warning: Permanently added '10.128.0.149' (ECDSA) to the list of known hosts. 2019/11/26 18:59:44 parsed 1 programs 2019/11/26 18:59:44 executed programs: 0 [ 60.9514528] Reader / writer lock error: rw_vector_enter,292: locking against myself [ 60.9614658] lock address : 0xffff9422cc89d750 type : sleep/adaptive [ 60.9614658] initialized : 0xffffffff8227247b [ 60.9614658] shared holds : 1 exclusive: 0 [ 60.9614658] shares wanted: 1 exclusive: 0 [ 60.9614658] current cpu : 1 last held: 1 [ 60.9714719] current lwp : 0xffff9422d3f184a0 last held: 0xffff9422d3f184a0 [ 60.9714719] last locked : 0xffffffff822820d0 unlocked*: 0xffffffff8227c6ce [ 60.9714719] owner/count : 0x0000000000000010 flags : 000000000000000000 [ 60.9714719] Turnstile chain at 0xffffffff85eac7a8 with mutex 0xffff9423d9832940. [ 60.9814903] => No active turnstile for this lock. [ 60.9814903] panic: LOCKDEBUG: Reader / writer lock error: rw_vector_enter,292: locking against myself [ 60.9915055] cpu1: Begin traceback... [ 61.0115470] vpanic() at netbsd:vpanic+0x2aa [ 61.0516110] snprintf() at netbsd:snprintf [ 61.0916749] lockdebug_abort1() at netbsd:lockdebug_abort1+0x16a [ 61.1417586] lockdebug_wantlock() at netbsd:lockdebug_wantlock+0x36f [ 61.1818291] rw_enter() at netbsd:rw_enter+0x7cd [ 61.2319082] uvm_fault_internal() at netbsd:uvm_fault_internal+0x25c [ 61.2719750] trap() at netbsd:trap+0x1195 [ 61.2819946] --- trap (number 6) --- [ 61.3120445] _ustore_8() at netbsd:_ustore_8+0x21 [ 61.3521150] sys___syscall() at netbsd:sys___syscall+0x1c8 [ 61.3921792] syscall() at netbsd:syscall+0x29a [ 61.4122099] --- syscall (number 198) --- [ 61.4122099] Skipping crash dump on recursive panic [ 61.4122099] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0x3 for type 'struct x86_64_frame' which requires 8 byte alignment [ 61.4422578] Faulted in mid-traceback; aborting... [ 61.4422578] fatal breakpoint trap in supervisor mode [ 61.4522743] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x200001c0 ilevel 0 rsp 0xffff9d80a6e43a10 [ 61.4622914] curlwp 0xffff9422d3f184a0 pid 624.3 lowest kstack 0xffff9d80a6e412c0 Stopped in pid 624.3 (syz-executor.4) at netbsd:breakpoint+0x5: leave ? breakpoint() at netbsd:breakpoint+0x5 db_panic() at netbsd:db_panic+0x109 vpanic() at netbsd:vpanic+0x2aa isAlreadyReported() at netbsd:isAlreadyReported HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b db_nextframe() at netbsd:db_nextframe+0x6f6 db_stack_trace_print() at netbsd:db_stack_trace_print+0x2c4 db_panic() at netbsd:db_panic+0xa3 vpanic() at netbsd:vpanic+0x2aa snprintf() at netbsd:snprintf lockdebug_abort1() at netbsd:lockdebug_abort1+0x16a lockdebug_wantlock() at netbsd:lockdebug_wantlock+0x36f rw_enter() at netbsd:rw_enter+0x7cd uvm_fault_internal() at netbsd:uvm_fault_internal+0x25c trap() at netbsd:trap+0x1195 --- trap (number 6) --- _ustore_8() at netbsd:_ustore_8+0x21 sys___syscall() at netbsd:sys___syscall+0x1c8 syscall() at netbsd:syscall+0x29a --- syscall (number 198) --- [ 61.4622914] Skipping crash dump on recursive panic [ 61.4622914] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x3 for type 'struct x86_64_frame' which requires 8 byte alignment [ 61.4622914] Faulted in mid-traceback; aborting... [ 61.4622914] fatal breakpoint trap in supervisor mode [ 61.4622914] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x200001c0 ilevel 0x8 rsp 0xffff9d80a6e42710 [ 61.4622914] curlwp 0xffff9422d3f184a0 pid 624.3 lowest kstack 0xffff9d80a6e412c0 Stopped in pid 624.3 (syz-executor.4) at netbsd:breakpoint+0x5: leave