FreeBSD Bugzilla – Attachment 217347 Details for
Bug 248746
panic during boot in ACPI Platform Error Interfaces
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[patch]
confirm pmap bug
diff (text/plain), 400 bytes, created by
Mark Johnston
on 2020-08-19 17:57:35 UTC
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Description:
confirm pmap bug
Filename:
MIME Type:
Creator:
Mark Johnston
Created:
2020-08-19 17:57:35 UTC
Size:
400 bytes
patch
obsolete
>diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c >index 314c8df5b328..980ca1493975 100644 >--- a/sys/amd64/amd64/pmap.c >+++ b/sys/amd64/amd64/pmap.c >@@ -6646,6 +6646,9 @@ pmap_kenter_temporary(vm_paddr_t pa, int i) > { > vm_offset_t va; > >+ if (i >= MAXDUMPPGS) >+ panic("mapping overflow (%d)", i); >+ > va = (vm_offset_t)crashdumpmap + (i * PAGE_SIZE); > pmap_kenter(va, pa); > invlpg(va);
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