Messages in this thread | | | Date | Mon, 13 Jun 2005 22:48:13 -0700 (PDT) | From | li nux <> | Subject | Re: rmap.c: try_to_unmap_file(): VM_LOCKED not respected |
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I first use mmap(MAP_LOCKED) and then remap_file_pages. This should set VM_LOCKED in the vma.
-li
--- William Lee Irwin III <wli@holomorphy.com> wrote:
> On Mon, Jun 13, 2005 at 10:14:05PM -0700, li nux > wrote: > > My application is using remap_file_pages and > mlocks > > those pages. > > So in the code of try_to_unmap_file (see below), > > I should never reach the call to > try_to_unmap_cluster, > > because for those pages VM_LOCKED is always set. > > But, under heavy load I am seeing > try_to_unmap_cluster > > is getting called. Stack: > > Does your app use remap_file_pages() before mlock()? > > If so, the VM may be trying to reclaim pages between > the call to > remap_file_pages() and the call to mlock(). > > > -- wli > - > To unsubscribe from this list: send the line > "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at > http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
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