Re: my simh-vax crashed: panic: pmap_enter on PG_SREF page
Anders Magnusson <[email protected]>
| Newsgroups | gmane.os.netbsd.ports.vax |
|---|---|
| Message-ID | <[email protected]> |
Den 2023-12-21 kl. 15:45, skrev Jason Thorpe: >> On Dec 21, 2023, at 6:29 AM, Anders Magnusson<[email protected]> wrote: >> >> Also, since SREF is set on the page, it means that a user process page is modified, and that information will now be lost. >> Maybe this should be propagated upwards before removing the user process space? > This should already happen as part of the natural flow, right? I think the problem is avoided in the natural flow by making sure the user PTP mapping (in Sysmap) isn’t left twisting in the wind when a user PTP is put on the free list. > > https://www.netbsd.org/~thorpej/vax-pmap-tbi-ptps-patch.txt Hm, you are fast providing patches :-) And yes, SREF should not be relevant here. The first two TBIS in your patch are OK. The last one is not needed since the are followed by a TBIA when referenced :-) -- R