In message <alpine.bsf.2.00.1110071734140.4...@wonkity.com>, Warren Block write s:
>Since we're talking about this, could you review the usage in the >gmirror section of the Handbook GEOM chapter: > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom-mirror.html > >Seems like that is a valid non-debugging use, to allow the last block to >be written. gmirror and this procedure has several problems: 1. It steals the last sector on the disk. If that sector contained data you lost them, with no notice. Most often it will not, particularly on a freshly installed system, but it is still a bad thing. 2. The paritioning is not fixed up to record the stealing of this sector. I wouldn't be surprised if this could cause confusion down the road. 3. In this case, writing only happens to a single sector, which we assume is not going to be written by anybody else, so apart from #1 and #2 debugflags=16 does not cause any additional damage. This is the kind of usage that makes me sad I ever added that option. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@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. _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
