login: [  56.1233318] panic: kernel diagnostic assertion "l->l_cpu == ci" failed: file "/syzkaller/managers/netbsd-kubsan/kernel/sys/kern/kern_synch.c", line 768 
[  56.1343931] cpu1: Begin traceback...
[  56.1677825] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
[  56.2345571] kern_assert() at netbsd:kern_assert+0x63
[  56.3013312] mi_switch() at netbsd:mi_switch+0x10e9 sys/kern/kern_synch.c:768
[  56.3681052] sleepq_block() at netbsd:sleepq_block+0x1c6 sys/kern/kern_sleepq.c:281
[  56.3903698] Mutex error: mutex_vector_enter,731: assertion failed: MUTEX_OWNER(mtx->mtx_owner) == curthread

[  56.3903698] lock address : 0xffffffff85eb0c40 type     :     sleep/adaptive
[  56.3903698] initialized  : 0xffffffff8223bab5
[  56.3903698] shared holds :                  0 exclusive:                  0
[  56.3903698] shares wanted:                  0 exclusive:                  1
[  56.3903698] current cpu  :                  0 last held:                  0
[  56.3903698] current lwp  : 0xfcfvf_fwfai6atb()b cea4t9 2a0 last held: 000000000000000000
[  56.3903698] last locked  : 0xffffffff82256e6e unlocked*: 0xffffffff82n2e5tb6esdd:5c
[[   5 566..39390033669988]] v o_wwnaiert +0fixe2ldd0
 
[  56.3903698]  : 000000000000000000 wait/spin:                0/0

[  56.3903698] Turnstile chain at 0xffffffff85eb85c8 with mutex 0xfffff6accba44e00.
[  56.3903698] => No active turnstile for this lock.

[  56.4828820] vm_map_lock() at netbsd:vm_map_lock+0xf8 sys/uvm/uvm_map.c:669
[  56.4828820] uvm_map_pageable() at netbsd:uvm_map_pageable+0x777 sys/uvm/uvm_map.c:3374
[  56.4828820] kcov_fops_ioctl() at netbsd:kcov_fops_ioctl+0x3ee kcov_allocbuf sys/kern/subr_kcov.c:188 [inline]
[  56.4828820] kcov_fops_ioctl() at netbsd:kcov_fops_ioctl+0x3ee sys/kern/subr_kcov.c:253
[  56.4828820] sys_ioctl() at netbsd:sys_ioctl+0xc66 sys/kern/sys_generic.c:671
[  56.4828820] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline]
[  56.4828820] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline]
[  56.4828820] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138
[  56.4828820] --- syscall (number 54) ---
[  56.4828820] Skipping crash dump on recursive panic
[  56.4828820] 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

[  56.4828820] Faulted in mid-traceback; aborting...
[  56.4828820] fatal breakpoint trap in supervisor mode
[  56.4828820] trap type 1 code 0 rip 0xffffffff8021dd9d cs 0x8 rflags 0x282 cr2 0xffff8d80a631b000 ilevel 0 rsp 0xffff8d80a6dead60
[  56.4828820] curlwp 0xfffff6abc0ff70c0 pid 453.1 lowest kstack 0xffff8d80a6de82c0
Stopped in pid 453.1 (syz-executor.1) 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
mi_switch() at netbsd:mi_switch+0x10e9 sys/kern/kern_synch.c:768
sleepq_block() at netbsd:sleepq_block+0x1c6 sys/kern/kern_sleepq.c:281
cv_wait() at netbsd:cv_wait+0x2d0 sys/kern/kern_condvar.c:252
vm_map_lock() at netbsd:vm_map_lock+0xf8 sys/uvm/uvm_map.c:669
uvm_map_pageable() at netbsd:uvm_map_pageable+0x777 sys/uvm/uvm_map.c:3374
kcov_fops_ioctl() at netbsd:kcov_fops_ioctl+0x3ee kcov_allocbuf sys/kern/subr_kcov.c:188 [inline]
kcov_fops_ioctl() at netbsd:kcov_fops_ioctl+0x3ee sys/kern/subr_kcov.c:253
sys_ioctl() at netbsd:sys_ioctl+0xc66 sys/kern/sys_generic.c:671
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 54) ---
[  56.4828820] Skipping crash dump on recursive panic
[  56.4828820] 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

[  56.4828820] Faulted in mid-traceback; aborting...
[  56.4828820] fatal breakpoint trap in supervisor mode
[  56.4828820] trap type 1 code 0 rip 0xffffffff8021dd9d cs 0x8 rflags 0x282 cr2 0xffff8d80a631b000 ilevel 0x8 rsp 0xffff8d80a6de9a60
[  56.4828820] curlwp 0xfffff6abc0ff70c0 pid 453.1 lowest kstack 0xffff8d80a6de82c0
Stopped in pid 453.1 (syz-executor.1) at        netbsd:breakpoint+0x5:  leave