syzbot


panic: pmap_remove_ptes: managed page without PG_PVLIST: va ADDR, opte ADDR (2)

Status: upstream: reported on 2024/08/05 22:53
Reported-by: syzbot+aaa86f49a5cd5c7aa16d@syzkaller.appspotmail.com
First crash: 41d, last: 41d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic: pmap_remove_ptes: managed page without PG_PVLIST: va ADDR, opte ADDR 1 990d 990d 0/3 auto-closed as invalid on 2022/03/30 22:21

Sample crash report:
panic: pmap_remove_ptes: managed page without PG_PVLIST: va 0x110c24a000, opte 0x7a40b001
Starting stack trace...
panic(ffffffff830a4ac2) at panic+0x1d0 sys/kern/subr_prf.c:229
pmap_remove_pte(fffffd806b86dda0,fffffd8008979e60,7f8008861180,110c230000,110c400000,0) at pmap_remove_pte
pmap_do_remove(fffffd806b86dda0,110c230000,110e230000,0) at pmap_do_remove+0x533 sys/arch/amd64/amd64/pmap.c:1911
uvm_unmap_kill_entry_withlock(fffffd806ca4a1d0,fffffd8062277a30,0) at uvm_unmap_kill_entry_withlock+0x274 sys/uvm/uvm_map.c:1865
uvm_map_teardown(fffffd806ca4a1d0) at uvm_map_teardown+0x1c7 sys/uvm/uvm_map.c:2498
uvmspace_free(fffffd806ca4a1d0) at uvmspace_free+0xcd sys/uvm/uvm_map.c:3422
reaper(ffff800029fd8f38) at reaper+0x256 sys/kern/kern_exit.c:480
end trace frame: 0x0, count: 250
End of stack trace.

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/05 22:53 openbsd 4ad77004d94b e1bdb00a .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore panic: pmap_remove_ptes: managed page without PG_PVLIST: va ADDR, opte ADDR
* Struck through repros no longer work on HEAD.