Messages in this thread Patch in this message | | | Date | Sat, 3 Mar 2001 04:19:22 +0100 | From | Jens Axboe <> | Subject | Re: report bug: System reboots when accessing a loop-device over a second loop-device with 2.4.2-ac7 |
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On Fri, Mar 02 2001, Mario Hermann wrote: > But with old 2.2 - Material stored on DVD-RAM. > > losetup -e blowfish /dev/loop0 /dev/sr3 > lsoetup -e serpent /dev/loop1 /dev/loop0 > > it doesn't work.
(replied to Mario earlier, for reference here's the patch).
Yet another miscount and IV off, I apparently missed the latter when the other IV calculations were fixed. I've verified block crypto here now.
-- Jens Axboe
--- /opt/kernel/linux-2.4.2-ac10/drivers/block/loop.c Sat Mar 3 04:16:23 2001 +++ drivers/block/loop.c Sat Mar 3 04:18:54 2001 @@ -345,8 +345,6 @@ struct buffer_head *rbh = bh->b_private; rbh->b_end_io(rbh, uptodate); - if (atomic_dec_and_test(&lo->lo_pending)) - up(&lo->lo_bh_mutex); loop_put_buffer(bh); } else loop_add_bh(lo, bh); @@ -479,6 +477,7 @@ IV = (bh->b_rsector / (bh->b_size >> 9)); IV += lo->lo_offset / bh->b_size; + IV >>= 2; ret = lo_do_transfer(lo, READ, bh->b_data, rbh->b_data, bh->b_size, IV); | |