[PPC64] Fix wrong KASSERT in mphyp_pte_insert()
As mphyp_pte_unset() can also remove PTE entries, and as this can happen in parallel with PTEs evicted by mphyp_pte_insert(), there is a (rare) chance the PTE being evicted gets removed before mphyp_pte_insert() is able to do so. Thus, the KASSERT should check wether the result is H_SUCCESS or H_NOT_FOUND, to avoid panics if the situation described above occurs. More details about this issue can be found in PR 237470. PR: 237470 Reviewed by: jhibbits Differential Revision: https://reviews.freebsd.org/D20012
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@ -453,7 +453,7 @@ mphyp_pte_insert(mmu_t mmu, struct pvo_entry *pvo)
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evicted.pte_hi & LPTE_AVPN_MASK, 0, &junk, &lastptelo,
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&junk);
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moea64_pte_overflow++;
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KASSERT(result == H_SUCCESS,
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KASSERT(result == H_SUCCESS || result == H_NOT_FOUND,
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("Error evicting page: %d", (int)result));
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}
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