syzbot


panic: pmap_enter: PG_PVLIST mapping with unmanaged page: va ADDR, opte ADDR, pa ADDR (2)

Status: upstream: reported on 2024/04/09 15:50
Reported-by: syzbot+efe746046e62c8b661ab@syzkaller.appspotmail.com
First crash: 64d, last: 64d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd panic: pmap_enter: PG_PVLIST mapping with unmanaged page: va ADDR, opte ADDR, pa ADDR 2 808d 884d 0/3 auto-closed as invalid on 2022/06/26 13:02

Sample crash report:
²panic: pmap_enter: PG_PVLIST mapping with unmanaged page: va 0x1b33a21000, opte 0xffffffffffffffff, pa 0x6779d000
Starting stack trace...
panic(ffffffff828580fa) at panic+0x16f sys/kern/subr_prf.c:229
pmap_enter(fffffd807f002ba0,1b33a21000,6779d000,3,20) at pmap_enter+0xd04
uvm_fault_lower_lookup(ffff80002a213fb0,ffff80002a213fe8,ffff80002a213f30) at uvm_fault_lower_lookup+0x29b sys/uvm/uvm_fault.c:1192
uvm_fault_lower(ffff80002a213fb0,ffff80002a213fe8,ffff80002a213f30,0) at uvm_fault_lower+0x62 sys/uvm/uvm_fault.c:1227
uvm_fault(fffffd80694df370,1b33a20000,0,1) at uvm_fault+0x255 sys/uvm/uvm_fault.c:637
upageflttrap(ffff80002a214130,1b33a20000) at upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188
usertrap(ffff80002a214130) at usertrap+0x227 sys/arch/amd64/amd64/trap.c:436
recall_trap() at recall_trap+0x8
end of kernel
end trace frame: 0x7718e47e08c0, count: 249
End of stack trace.

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/09 15:49 openbsd b226cd0be9f7 56086b24 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore panic: pmap_enter: PG_PVLIST mapping with unmanaged page: va ADDR, opte ADDR, pa ADDR
* Struck through repros no longer work on HEAD.