Hifn driver in SMP (was Re: GELI - disk encryption GEOM class committed.)

Mike Tancsa mike at sentex.net
Mon Aug 8 03:34:28 GMT 2005


Actually, it seems I can easily lock up the box with

/usr/bin/openssl aes-128-cbc -in big -k pass | ssh -c aes128-cbc 
mdtancsa at 127.0.0.1 "cat - >  /home/mdtancsa/targetfile.enc"

Is the hifn driver perhaps not fully smp safe ?


         ---Mike



At 11:27 PM 07/08/2005, Mike Tancsa wrote:
>At 12:07 PM 07/08/2005, Pawel Jakub Dawidek wrote:
>>On Sun, Aug 07, 2005 at 10:07:52AM -0400, Mike Tancsa wrote:
>>+> At 02:52 AM 07/08/2005, Pawel Jakub Dawidek wrote:
>>+>
>>+> >I saw this (I've one hifn here).
>>+> >This looks like a bug in hifn(4), it locks up when too many requests are
>>+> >sent there.
>>+> >Could you try increasing sector size of encrypted provider to eg. 8192?
>>+> >(There is '-s' option for 'init' subcommand.)
>>+>
>>+> No difference.  It might even hasten it a little.
>>+>
>>+> [hippo]# geli init -a 3des -s 8192 -K /var/tmp/da2.key /dev/amrd0s1e
>>
>>Yes, I'm able to reproduce it easly.
>>I made my tests with AES where I see hangs only with small sectorsize -
>>AES and 8kB sectorsize works for me. I'm afraid it's hifn(4) issue and
>>I'm not sure if I can help here.
>
>Hmmm, very strange indeed.  I just tried with aes and it runs a little 
>longer, but still eventually locks up.
>
>[hippo]# geli init -a aes -s 8192 -K /var/tmp/da2.key /dev/amrd0s1e
>Enter new passphrase:
>Reenter new passphrase:
>[hippo]# geli attach -k /var/tmp/da2.key /dev/amrd0s1e
>Enter passphrase:
>[hippo]# newfs /dev/amrd0s1e.eli
>/dev/amrd0s1e.eli: 1024.0MB (2097136 sectors) block size 16384, fragment 
>size 8192
>         using 4 cylinder groups of 256.00MB, 16384 blks, 8192 inodes.
>super-block backups (for fsck -b #) at:
>  160, 524448, 1048736, 1573024
>[hippo]# mount /dev/amrd0s1e.eli /mnt
>[hippo]# bonnie -s 300 -d /mnt/
>File '/mnt//Bonnie.32578', size: 314572800
>Writing with putc()...
>
>
>
>[hippo]# iostat -c 1000
>       tty           amrd0            pass0             cpu
>  tin tout  KB/t tps  MB/s   KB/t tps  MB/s  us ni sy in id
>    0    0  8.96   2  0.02   0.00   0  0.00   2  0  1  0 97
>    0  179 128.00  18  2.24   0.00   0  0.00   2  0  3  1 94
>    0   61 128.00  16  1.99   0.00   0  0.00   2  0  4  0 93
>    0   61 128.00  18  2.24   0.00   0  0.00   3  0  2  1 94
>    0   61 128.00  18  2.24   0.00   0  0.00   3  0  4  1 93
>    0   61 128.00  18  2.24   0.00   0  0.00   2  0  4  0 94
>    0   61 128.00  17  2.12   0.00   0  0.00   3  0  3  1 94
>    0   61 128.00  18  2.24   0.00   0  0.00   1  0  3  1 94
>    0   61 128.00  17  2.12   0.00   0  0.00   4  0  2  1 93
>    0   61 102.58  24  2.40   0.00   0  0.00   2  0  5  1 92
>    0   61 102.55  22  2.20   0.00   0  0.00   2  0  4  0 94
>    0   61 128.00  17  2.12   0.00   0  0.00   1  0  4  1 94
>    0   61 128.00  18  2.24   0.00   0  0.00   2  0  5  1 91
>    0   61 128.00  17  2.12   0.00   0  0.00   2  0  3  1 95
>    0   61 128.00  17  2.12   0.00   0  0.00   2  0  6  0 92
>    0   61 128.00  18  2.24   0.00   0  0.00   2  0  3  0 95
>    0   61 128.00  17  2.12   0.00   0  0.00   2  0  5  1 93
>    0   61 83.20  25  2.03   0.00   0  0.00   2  0  2  0 96
>    0   60 128.00  17  2.12   0.00   0  0.00   2  0  5  1 92
>    0   61 128.00  18  2.24   0.00   0  0.00   3  0  3  0 94
>       tty           amrd0            pass0             cpu
>  tin tout  KB/t tps  MB/s   KB/t tps  MB/s  us ni sy in id
>    0   61 105.52  21  2.16   0.00   0  0.00   2  0  5  1 92
>    0  181 128.00  17  2.12   0.00   0  0.00   2  0  3  0 94
>    0   61 128.00  18  2.24   0.00   0  0.00   3  0  4  0 93
>    0   61 115.11  18  2.02   0.00   0  0.00   2  0  4  0 94
>    0   61 128.00  20  2.49   0.00   0  0.00   1  0  6  1 92
>    0   61 128.00  18  2.24   0.00   0  0.00   3  0  4  1 93
>    0   61 128.00  17  2.12   0.00   0  0.00   2  0  3  0 95
>    0   61 128.00  17  2.12   0.00   0  0.00   3  0  4  1 92
>    0   61 128.00  18  2.24   0.00   0  0.00   2  0  3  1 94
>    0   61 96.73  22  2.07   0.00   0  0.00   2  0  5  0 93
>    0   60 128.00  18  2.24   0.00   0  0.00   1  0  4  1 94



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