Date: Thu, 20 Jan 2000 01:13:36 +0100 From: Andreas Braukmann <braukmann@tse-online.de> To: freebsd-current@freebsd.org Subject: Filesystem crash / no softupdates / jail running ... Message-ID: <20000120011336.C1478@cage.tse-online.de>
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Hi there,
... I had a major filesystem crash just a few minutes ago.
The crash was so heavy, that I first had to think about a
hardware-failure. But I didn't found anything in the logfiles.
The story:
Yesterday I began to play around with an experimentail jail-based
virtual server setup.
The 'jail world' was located under /scratch/jails/zappa/.
'inetd', 'telnetd', a 'sh' were running jailed.
It sees to run rather well.
Today I changed my working directory (running a regular, non-jailed
shell) to /scratch and found the directory empty.
'What the hell is going on here?' I thought ran a 'ps' just to
find the jailed processes running happily.
I did a telnet to the virtual server, was able to login successfully
and found a apparently intact filesystem.
... and then.. ... and then ... the screen froze and a few seconds
later the machines rebooted silently.
No tracks in the logs.
Sorry, I was running X and currently have no serial console available.
Therefor I just can't tell, if it was really a silent reboot or
a 'not-seen' panic.
The filesystem was totally hosed.
'fsck' spat out masses of 'unknown file type', 'partially allocated
inode', 'incorrect block count' (with rather large discrepancies)
and 'excessive bad blks' messages.
Partially transcripts of 'fsck -y '-logs are available on request.
System: K7/700, 256MB, sym0, fxp0
Disk: <IBM DNES-309170W SA30>>
The disk contained a ca. 9GB filesystem (default newfs) mounted
without any special options (on /scratch).
FreeBSD xxx.xxx.xxxx.de 4.0-CURRENT FreeBSD 4.0-CURRENT #0: Wed Jan
5 14:30:28 CET 2000
I have soft-updates compiled in but deactivated on all filesystems.
Regards,
Andreas
... sorry, ... my written English is rather ugly ...
--
Andreas Braukmann - irgendwer@internet-adresse.de -
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