Messages in this thread | | | Date | Mon, 11 Apr 2005 13:46:51 -0700 | From | Andrew Morton <> | Subject | Re: Linux 2.4.30-rc3 md/ext3 problems (ext3 gurus : please check) |
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"Stephen C. Tweedie" <sct@redhat.com> wrote: > > Andrew, what was the exact illegal state of the pages you were seeing > when fixing that recent leak? It looks like it's nothing more complex > than dirty buffers on an anon page.
Correct.
> I think that simply calling > try_to_release_page() for all the remaining buffers at umount time will
Presumably these pages have no ->mapping, so try_to_release_page() will call try_to_free_buffers().
> be enough to catch these; if that function fails, it tells us that the > VM can't reclaim these pages.
Yes, if the buffers are dirty then 2.4's try_to_free_buffers() won't free them.
> The only thing that would be required on > top of that would be a check that the page is also on the VM LRU lists.
Why do we have dirty buffers left over at umount time? - 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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