As I stated, I've seen the NULL or ^@ characters on systems that were shutdown proper.
On Tue, 2002-04-02 at 16:39, Roger wrote: > On Tue, 2002-04-02 at 16:40, Bryan Whitehead wrote: > > On Tue, 2002-04-02 at 04:04, Guy Zelck wrote: > > > > > > You obviously haven't followed my lead : read the 'w > > > ich is better choice ext3 or ...' thread. A lot of detail is in there. > > > I can reproduce it any time by just doing un unclean shutdown or when I have to >when the system hangs. But maybe it has something to do with my SCSI card which is >not 100%. I'm getting closer. > > > > > > Guy. > > > > I should have mentioned I read the thread. We have had problems on > > machines that shutdown cleanly.... Files end up with null's in them > > instead of data. I can reproduce the error on basically any of our > > machines (around 20 Dell machines with onboard scsi). The problem never > > comes up with other FS's. (well, at least ext2) On very heavily loaded > > machines we've had entire directories disappear. Running any of the xfs > > tools does not restore missing directories or fix files that are full of > > null characters. > > > > If anyone would like instructions on how we trigger the problem about > > 30% of the time (for null characters), I can give detailed instructions > > and some scripts. It would be nice to have this resolved. We've had to > > switch back to ext2 since the problems were discovered. > > > > -- > > Bryan Whitehead > > SysAdmin - JPL - Interferometry Systems and Technology > > Phone: 818 354 2903 > > [EMAIL PROTECTED] > > > > I thought this problem was resolved in later releases of the XFS driver > (>2.4.13 kernel versions). I saw a noticable diff in stability with the > later kernel releases. > > Although, I haven't been performing unclean shutdowns here to test the > idea, but in earlier kernel versions, this was a real annoyance since I > would find allot of my user config files completely wiped :-( > > I've yet to see this problem persist in later kernel versions, although, > every now and then, i might come across an improperly formated config > file starting with @@@@, but moving further down in the file reveals the > config settings. I don't know if this is really XFS related or vim > related for sure. > > if you atleast do a alt+SysReq+S before a unclean shutdown, you should > be safe! this is the route of the problem/bug here. basically, the XFS > mailling list has more indepth detail about the sync bit > (err...whatever). > -- > Roger > ----- > Verify my pgp/gnupg signature on my HomePage: > http://www.alltel.net/~rogerx/about/index.html -- Bryan Whitehead SysAdmin - JPL - Interferometry Systems and Technology Phone: 818 354 2903 [EMAIL PROTECTED]
