> Hi,
>
> On my sparc64 machine regress/lib/libpthread triggers a panic. It
> happend with Feb 1 and Jan 31 snapshot. Jan 29 snapshot paniced
> somewhere else. Test and console output below.
>
> *cpu1: pmap_enter: access_type exceeds prot
>
> bluhm
Does the following diff help?
Index: uvm_fault.c
===================================================================
RCS file: /OpenBSD/src/sys/uvm/uvm_fault.c,v
retrieving revision 1.124
diff -u -p -r1.124 uvm_fault.c
--- uvm_fault.c 28 Dec 2021 13:16:28 -0000 1.124
+++ uvm_fault.c 2 Feb 2022 19:53:36 -0000
@@ -1023,8 +1023,10 @@ uvm_fault_upper(struct uvm_faultinfo *uf
counters_inc(uvmexp_counters, flt_anon);
oanon = anon;
pg = anon->an_page;
- if (anon->an_ref > 1) /* disallow writes to ref > 1 anons */
- flt->enter_prot = flt->enter_prot & ~PROT_WRITE;
+ if (anon->an_ref > 1) { /* disallow writes to ref > 1 anons */
+ flt->enter_prot &= ~PROT_WRITE;
+ flt->access_type &= ~PROT_WRITE;
+ }
}
/*
