amd64 pmap: convert some panics to KASSERTs
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Authored by alc on Jul 6 2025, 5:53 PM.

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rG6a7761b4d27c: amd64 pmap: convert panics to KASSERTs

Summary

With the recent changes to pmap_demote_DMAP(), the calls to pmap_demote_pdpe() and pmap_demote_pde_mpte() should never fail.

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rG FreeBSD src repository

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alc requested review of this revision.Jul 6 2025, 5:53 PM

alc created this revision.

kib accepted this revision.Jul 6 2025, 5:58 PM

This revision is now accepted and ready to land.Jul 6 2025, 5:58 PM

Should the pmap_demote_pde() in pmap_unwire() get the same treatment? As I understand, wire should saved the pt page in radix.

markj accepted this revision.Jul 6 2025, 6:40 PM

In D51180#1168328, @kib wrote:

Should the pmap_demote_pde() in pmap_unwire() get the same treatment? As I understand, wire should saved the pt page in radix.

I think that should be preceded by the changes under discussion in D49442.

Closed by commit rG6a7761b4d27c: amd64 pmap: convert panics to KASSERTs (authored by alc). · Explain WhyJul 7 2025, 12:07 AM

This revision was automatically updated to reflect the committed changes.

alc added a commit: rG6a7761b4d27c: amd64 pmap: convert panics to KASSERTs.

Herald added a subscriber: imp. · View Herald TranscriptJul 7 2025, 12:07 AM

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sys/

amd64/

pmap.c

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amd64 pmap: convert some panics to KASSERTsClosedPublicActions