Date: Tue, 2 Mar 2004 23:13:27 -0000 From: "James Read" <james@physicalsegment.com> To: <stable@freebsd.org> Subject: Re: Using read-only NULLFS leads to panic. gdb output included,easy toreproduce. Message-ID: <00b901c400ab$f7e90e30$c000000a@jd2400> References: <20040302213936.216CB5F103@shellma.zin.lublin.pl> <00a501c40171$9e0f6dc0$c000000a@jd2400>
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Quickly forgot to mention this occured on 4.9 RELEASE and also when I upgraded to 4.9-STABLE #0: Sun Feb 15. Kernel is GENERIC with just IPFW + DUMMYNET added in. Regards, James. ----- Original Message ----- From: "James Read" <james@physicalsegment.com> To: "Paweł Małachowski" <pawmal-posting@freebsd.lublin.pl> Cc: <stable@freebsd.org> Sent: Wednesday, March 03, 2004 10:48 PM Subject: Re: Using read-only NULLFS leads to panic. gdb output included,easy toreproduce. > > find /usr/ports -type f -perm -u+s & > > find /usr/ports -type f -perm -u+s & > > ... > > find /mnt/1 -type f -perm -u+s & > > find /mnt/1 -type f -perm -u+s & > > ... > > find /mnt/2 -type f -perm -u+s & > > find /mnt/2 -type f -perm -u+s & > > ... > > > > (Machine C crashed after few minutes). > > > All I can say is that I've had this happen to me before. 'Me too' > > The ports were mounted in exact the same way, but with rw instead of ro. > > Also a few jails were running at the time, infact 3 were. All had /usr/ports > mount_null'ed inside there jail. > > After running find from the usual periodic scripts it brought the machine > down every time it ran that script. > > What I did to stop the box from panicing all the time at that one particular > place, was just to disable the script that does the 'find' / locate. Off the > top of my head I think it was /etc/periodic/weekly/310.locate. Once this was > disabled (from inside and outside the jails), I didnt get any more panics > from 'find'. > > Granted this isnt a fix, but it did save me from panic hell every week. > > If there is a better way / another way to 'mount_null' /usr/ports (or any > other mount point for that matter) to other places in/on the filesystem, by > using NFS or other such things, then speak up! I don't like getting panics > more then anyone else does ;> > > Regards, > > James. > > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > Mailscanner thanks transtec Computers for their support. > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. Mailscanner thanks transtec Computers for their support.
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