syzbot


panic: pmap_remove_ptes: managed page without PG_PVLIST: va ADDR, opte ADDR (3)

Status: upstream: reported on 2025/11/14 16:04
Reported-by: syzbot+793fee8c3c8257999cae@syzkaller.appspotmail.com
First crash: 91d, last: 5h02m
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic: pmap_remove_ptes: managed page without PG_PVLIST: va ADDR, opte ADDR (2) 2 1 557d 557d 0/3 auto-obsoleted due to no activity on 2024/11/03 22:53
openbsd panic: pmap_remove_ptes: managed page without PG_PVLIST: va ADDR, opte ADDR 2 1 1506d 1506d 0/3 auto-closed as invalid on 2022/03/30 22:21

Sample crash report:
login: panic: pmap_remove_ptes: managed page without PG_PVLIST: va 0x110c24a000, opte 0x6c813001
Starting stack trace...
panic(ffffffff833d870c) at panic+0x1d0 sys/kern/subr_prf.c:229
pmap_remove_pte(fffffd806c7df400,fffffd80088a54c8,7f8008861180,110c230000,110c400000,0) at pmap_remove_pte
pmap_do_remove(fffffd806c7df400,110c230000,110e230000,0) at pmap_do_remove+0x589 sys/arch/amd64/amd64/pmap.c:1920
uvm_unmap_kill_entry_withlock(fffffd806c98e7b8,fffffd800cfbb8d8,0) at uvm_unmap_kill_entry_withlock+0x269 sys/uvm/uvm_map.c:1863
uvm_map_teardown(fffffd806c98e7b8) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
uvm_map_teardown(fffffd806c98e7b8) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2491
exit1(ffff80003c4d54f8,0,0,1) at exit1+0x6fc sys/kern/kern_exit.c:260
sys_exit(ffff80003c4d54f8,ffff80002a375b50,ffff80002a375aa0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a375b50) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a375b50) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7a56f93c51e0, count: 248
End of stack trace.

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/02/13 19:01 openbsd 002f3ac1824d 018ebef2 .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
2026/02/02 01:55 openbsd 455fdbe5e703 6b8752f2 .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
2025/12/15 08:46 openbsd b46de5080dd7 a066d2bc .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
2025/11/14 16:03 openbsd 56163c0cd41e f7988ea4 .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.