Re: gbde data corruption?

From: Poul-Henning Kamp <phk_at_phk.freebsd.dk>
Date: Tue, 29 Apr 2003 17:07:17 +0200
In message <20030429162332.M20908_at_daneel.foundation.hs>, Heiko Schaefer writes:
>...replying to myself,
>
>apparently updating g_bde_crypt.c from rev 1.12 to 1.13 has effects on the
>format of data or the layout of the encrypted filesystem. the stuff that
>was on that mount with the old kernel is gone now.

Yes, I fumbled a commit and slipped in some debugging code in 1.12.

I've had 1.13 running my toture-test here for 38 hours now with no
trouble.

>> PS: i also have some performance issues with gbde, about which i'll whine
>> some other time :) it seems to me that the transactions on the disc (the
>> way i use gbde at least) are too small to reach the theoretical speed of
>> the harddrive.

Much worse than that:  They get cut into smaller I/O requests and the
cpu has to chew on them a lot.  While GBDE is not directly slow, it
will never be as fast as an unencrypted partitition.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk_at_FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
Received on Tue Apr 29 2003 - 06:07:25 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:37:05 UTC