samba - Jul 2004 - Files get written with sections of log in them - destroying files.

Hello!

I'm having a problem with Samba 3.0.4 on a HP-UX 11.00 server. 

The problem is, that sometimes files don't get written properly; ie. 
somewhere in the middle of the file, I find a section of logs. You can 
find a sample file at 
http://stuff.alexander.skwar.name/Delphi/HP-UX/Samba/broken-samba-file.prt

If you open the file with a "binary" editor and have a look at bytes
6000
to 16100, you'll see that something's very wrong. You'll also see
that,
if you open the file in a normal text "viewer" like your browser.

Any ideas at all about why something like this might happen?

Further files of interest:
http://stuff.alexander.skwar.name/Delphi/HP-UX/Samba/smb.conf
http://stuff.alexander.skwar.name/Delphi/HP-UX/Samba/testparm_--suppress-prompt_--verbose.txt

Thanks a lot,

Alexander Skwar
-- 
Sind Sch?fchens Locken schwarz und braun, 
dann lehnt es am Elektrozaun. 
Und wenn es mit den ?uglein rollt, 
dann will es sagen: "Zuviel Volt!"

Herb Lewis wrote:
> Did you by any chance get a log rotate about the time of the corruption?
You mean the Samba logs, don't you (ie. not the logs from syslog and the
like)?
> We have seen these things in the past but they have never been reproducible
Yes. I also cannot really reproduce it - ie. I cannot do X and have the
file be destroyed. I wish I were able to :(
> so have been hard to track down.
Yep. Don't you just hate those Heisenbugs? Well, I do :(
> At one time I had a theory that something
> was going wrong at the time the logs reached the max size and were being
> "rotated" because all the cases had a max log size set. Can you
check your
> logs and see if you have an old log that ends about the time of the
> log entries that were inserted into your file?
Well, at least that's a theory. Tomorrow when I'm back at work, I'll
for
sure checkt that.

PS: Why did you reply off-list?

Alexander Skwar
-- 
printk(KERN_WARNING "Warning: defective CD-ROM (volume sequence
number). Enabling \"cruft\" mount option.\n");
	2.2.16 /usr/src/linux/fs/isofs/inode.c

Herb Lewis wrote:
> Did you by any chance get a log rotate about the time of the corruption?
Hm, I can't find any logs that got rotated at about that time - however,
this doesn't mean much, since it's of course very much possible, that
new logs got rotated over the then-new log file.

Anyhow, right now I'm wondering about a different thing. In my smb.conf,
I removed the "log level" setting. testparm -sv shows me:

	log level = 0

Nonetheless, I get log files created (even after I restarted smb).

Why's that?

Thanks,
Alexander