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| author | kmacy <kmacy@FreeBSD.org> | 2008-08-21 02:57:02 +0000 |
|---|---|---|
| committer | kmacy <kmacy@FreeBSD.org> | 2008-08-21 02:57:02 +0000 |
| commit | 698d908d7bd6650136452b1668101c063161c2f7 (patch) | |
| tree | 5d41fb9ef6c512578fba597e2b03478a7a546bba /sys/i386/xen/pmap.c | |
| parent | ebff248b6601167f233e48eaec2a494a770bc2ed (diff) | |
| download | FreeBSD-src-698d908d7bd6650136452b1668101c063161c2f7.zip FreeBSD-src-698d908d7bd6650136452b1668101c063161c2f7.tar.gz | |
Fix boot time pmap_growkernel panic for case where vm is allocated >= 768M
MFC after: 1 month
Diffstat (limited to 'sys/i386/xen/pmap.c')
| -rw-r--r-- | sys/i386/xen/pmap.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/i386/xen/pmap.c b/sys/i386/xen/pmap.c index e838de4..9199218 100644 --- a/sys/i386/xen/pmap.c +++ b/sys/i386/xen/pmap.c @@ -1910,13 +1910,15 @@ pmap_growkernel(vm_offset_t addr) pmap_zero_page(nkpg); ptppaddr = VM_PAGE_TO_PHYS(nkpg); newpdir = (pd_entry_t) (ptppaddr | PG_V | PG_RW | PG_A | PG_M); + vm_page_lock_queues(); PD_SET_VA(kernel_pmap, (kernel_vm_end >> PDRSHIFT), newpdir, TRUE); - mtx_lock_spin(&allpmaps_lock); LIST_FOREACH(pmap, &allpmaps, pm_list) PD_SET_VA(pmap, (kernel_vm_end >> PDRSHIFT), newpdir, TRUE); mtx_unlock_spin(&allpmaps_lock); + vm_page_unlock_queues(); + kernel_vm_end = (kernel_vm_end + PAGE_SIZE * NPTEPG) & ~(PAGE_SIZE * NPTEPG - 1); if (kernel_vm_end - 1 >= kernel_map->max_offset) { kernel_vm_end = kernel_map->max_offset; |
