5a08df100b
On an INVARIANTS kernel on 32-bit Book-E, we were panicing when running the libproc tests. This was caused by extra pv entries being generated accidentally by the pmap icache invalidation code. Use the same VA (i.e. 0) when freeing the temporary mapping, instead of some arbitrary address within the zero page. Failure to do this was causing kernel-side icache syncing to leak PVE entries when invalidating icache for a non page-aligned address, which would later result in pages erroneously showing up as mapped to vm_page. This bug was introduced in r347354 in 2019. Reviewed by: jhibbits (in irc) Sponsored by: Tag1 Consulting, Inc. |
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| .. | ||
| booke_machdep.c | ||
| locore.S | ||
| machdep_e500.c | ||
| mp_cpudep.c | ||
| platform_bare.c | ||
| pmap_32.c | ||
| pmap_64.c | ||
| pmap.c | ||
| spe.c | ||
| trap_subr.S | ||