Milan Broz <mbroz@...> writes:
>
> someone wrote:
> >> please could you try to use patch attached in previous mail and report if
it
> > helps ?
>
> > I'm currently using 2.6.22-r9 (Gentoo) but I could probably unmask 2.6.24
if
> > that's required for the patch. What's the oldest kernel version I could
test
> > the patch on?
>
> Patch can be applied to 2.6.22 without change, the bug is in dm-crypt for
long time...
>
> Milan
> --
> mbroz@...
>
>
I tried... still the same issue. This is my dm-crypt.c patched:
/*
* Generate a new unfragmented bio with the given size
* This should never violate the device limitations
* May return a smaller bio when running out of pages
*/
static struct bio *crypt_alloc_buffer(struct crypt_io *io, unsigned int size)
{
struct crypt_config *cc = io->target->private;
struct bio *clone;
unsigned int nr_iovecs = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
gfp_t gfp_mask = GFP_NOIO | __GFP_HIGHMEM;
unsigned int i;
struct page *page;
unsigned long len;
clone = bio_alloc_bioset(GFP_NOIO, nr_iovecs, cc->bs);
if (!clone)
return NULL;
clone_init(io, clone);
for (i = 0; i < nr_iovecs; i++) {
page = mempool_alloc(cc->page_pool, gfp_mask);
if (!page)
break;
/*
* if additional pages cannot be allocated without waiting,
* return a partially allocated bio, the caller will then try
* to allocate additional bios while submitting this partial
bio
*/
if (i == (MIN_BIO_PAGES - 1))
gfp_mask = (gfp_mask | __GFP_NOWARN) & ~__GFP_WAIT;
len = (size > PAGE_SIZE) ? PAGE_SIZE : size;
if (!bio_add_page(clone, page, len, 0)) {
mempool_free(page, cc->page_pool);
break;
}
size -= len;
}
if (!clone->bi_size) {
bio_put(clone);
return NULL;
}
return clone;
}
Just wanted to doublecheck to make sure it's correct...
~ # cryptsetup luksOpen /dev/sda1 raid
Enter LUKS passphrase:
key slot 0 unlocked.
Command successful.
~ # dd if=/dev/urandom of=/dev/mapper/raid
even that will make my array go offline... any suggestions or other things to
try?
I can fully format/use the volume without dm-crypt but nothing seems to work
at all with dm-crypt.
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