Author: jhibbits
Date: Sun Oct 21 02:28:04 2018
New Revision: 339520
URL: https://svnweb.freebsd.org/changeset/base/339520
Log:
powerpc64/pmap: Correct the logic for minidump KVA chunk
r279252 inverted the logic in moea64_scan_init, such that instead of
terminating when reaching a dead page, it terminates when reaching a live
page, ostensibly preserving exactly one page of KVA.
Modified:
head/sys/powerpc/aim/mmu_oea64.c
Modified: head/sys/powerpc/aim/mmu_oea64.c
==============================================================================
--- head/sys/powerpc/aim/mmu_oea64.c Sun Oct 21 02:25:56 2018
(r339519)
+++ head/sys/powerpc/aim/mmu_oea64.c Sun Oct 21 02:28:04 2018
(r339520)
@@ -2882,7 +2882,7 @@ moea64_scan_init(mmu_t mmu)
if (va == kmi.buffer_sva)
break;
pvo = moea64_pvo_find_va(kernel_pmap, va & ~ADDR_POFF);
- if (pvo != NULL && !(pvo->pvo_vaddr & PVO_DEAD))
+ if (pvo == NULL || (pvo->pvo_vaddr & PVO_DEAD))
break;
va += PAGE_SIZE;
}
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