mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-18 10:35:55 +00:00
Code Issues Releases Activity

On exec(2), when loading the ELF image, pmap_enter_object() is

Browse Source 
called to prefault pages. This is an obvious place for making
sure the I-cache is coherent. It was missing though. As such,
execution over NFS and ZFS file systems was failing. NFS was
fixed the wrong way (by flushing the D-cache as part of the
NFS code) in a previous commit. ZFS problems were encountered
after that and indicated that something else was wrong...

Approved by:	re (kib)
This commit is contained in:
Marcel Moolenaar 2009-07-11 22:27:20 +00:00
parent 6a7bff2c31
commit 1ed01448fb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=195625
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sys/ia64/ia64/pmap.c
View File

@ -1733,6 +1733,9 @@ pmap_enter_quick_locked(pmap_t pmap, vm_offset_t va, vm_page_t m,
pmap_pte_prot(pmap, pte,
prot & (VM_PROT_READ | VM_PROT_EXECUTE));
pmap_set_pte(pte, va, VM_PAGE_TO_PHYS(m), FALSE, managed);
if (prot & VM_PROT_EXECUTE)
ia64_sync_icache(va, PAGE_SIZE);
}
}