uvm_fault(0xffffffff83a7a4e8, 0xffff800029ee5000, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      pvclock_get+0x53:       movl    0(%r15),%r12d
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*435169  61700      0           0  0x4000000    0  syz-executor
pvclock_get(ffffffff8390e490) at pvclock_get+0x53 pvclock_read_begin sys/dev/pv/pvclock.c:278 [inline]
pvclock_get(ffffffff8390e490) at pvclock_get+0x53 sys/dev/pv/pvclock.c:333
nsecuptime() at nsecuptime+0x62 tc_delta sys/kern/kern_tc.c:138 [inline]
nsecuptime() at nsecuptime+0x62 binuptime sys/kern/kern_tc.c:191 [inline]
nsecuptime() at nsecuptime+0x62 sys/kern/kern_tc.c:257
clockintr_dispatch(ffff80003c930bc0) at clockintr_dispatch+0xe8 sys/kern/kern_clockintr.c:180
lapic_clockintr(0,0) at lapic_clockintr+0x43 sys/arch/amd64/amd64/lapic.c:482
Xresume_lapic_ltimer() at Xresume_lapic_ltimer+0x2a
__sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x3b sys/dev/kcov.c:159
uvm_pagelookup(fffffd806d2d3de8,562000) at uvm_pagelookup+0x51 uvm_objtree_RBT_FIND sys/uvm/uvm_object.h:93 [inline]
uvm_pagelookup(fffffd806d2d3de8,562000) at uvm_pagelookup+0x51 sys/uvm/uvm_page.c:1214
buf_free_pages(fffffd806d2d3d28) at buf_free_pages+0xec sys/kern/vfs_biomem.c:-1
buf_dealloc_mem(fffffd806d2d3d28) at buf_dealloc_mem+0x14e sys/kern/vfs_biomem.c:179
buf_put(fffffd806d2d3d28) at buf_put+0x1d9 sys/kern/vfs_bio.c:123
brelse(fffffd806d2d3d28) at brelse+0x397 sys/kern/vfs_bio.c:932
writedisklabel(d02,ffffffff81e80750,ffff800000039000) at writedisklabel+0x1b8 sys/arch/amd64/amd64/disksubr.c:158
sdioctl(d01,84946467,ffff800001584800,3,ffff80002a77c018) at sdioctl+0x959 sys/scsi/sd.c:919
VOP_IOCTL(fffffd8073977488,84946467,ffff800001584800,3,fffffd8007ffd680,ffff80002a77c018) at VOP_IOCTL+0xa3 sys/kern/vfs_vops.c:264
end trace frame: 0xffff80003c931170, count: 0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb> 
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb>