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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2024-03-04 02:03:17 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2024-03-04 02:04:23 +0100 |
| commit | d6030cdfc49e9aa10819a5438a5ae313a4538f42 (patch) | |
| tree | 9321900d7f6130306e8dc14d78c56aa1ec2daab6 /vm | |
| parent | a251b15660097c37892bf510f0c9979a4ec196f2 (diff) | |
| download | gnumach-d6030cdfc49e9aa10819a5438a5ae313a4538f42.tar.gz gnumach-d6030cdfc49e9aa10819a5438a5ae313a4538f42.tar.bz2 gnumach-d6030cdfc49e9aa10819a5438a5ae313a4538f42.zip | |
vm_allocate_contiguous: Add missing page unwiring after making the area non-pageable
Otherwise, if the allocated memory is passed over for returning data such as
in device_read, we end up with
../vm/vm_map.c:4245: vm_map_copyin_page_list: Assertion `src_entry->wired_count > 0' failed.Debugger invoked: assertion failure
Diffstat (limited to 'vm')
| -rw-r--r-- | vm/vm_user.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/vm/vm_user.c b/vm/vm_user.c index 868230a3..62aedad3 100644 --- a/vm/vm_user.c +++ b/vm/vm_user.c @@ -692,6 +692,9 @@ kern_return_t vm_allocate_contiguous( return kr; } + for (i = 0; i < vm_page_atop(size); i++) + vm_page_unwire(&pages[i]); + *result_vaddr = vaddr; *result_paddr = pages->phys_addr; |