On Tue, 2006-12-05 at 21:49 +0100, Miha Verlic wrote: > > It was broken for a while, but fixed in 2.6.18. > > hm... this should be mini quota subquestion, but I just might > encountered a bug: > > ~# cat /etc/fstab | grep md7 > /dev/md7 /home/users jfs > defaults,noatime,nodiratime,nosuid,noexec,usrquota 1 2 > > ~# cat /proc/mounts | grep md7 > /dev/md7 /home/users jfs > rw,nosuid,noexec,noatime,nodiratime,nointegrity,usrquota 0 0 > > ~# mount -o remount,integrity /home/users > > ~# cat /proc/mounts | grep md7 > /dev/md7 /home/users jfs rw,nosuid,noexec,noatime,nodiratime 0 0 > > > Are usrquota and integrity flags mutually exclusive?
No, they aren't related at all. It looks like usrquota gets cleared on any remount. It's not limited to jfs either. I see the same thing on ext4. I don't know if this is a known behavior or not. You can probably guess that I don't use quotas very much. > Also, man page for mount says: > >Mount options for jfs > > noquota / quota / usrquota / grpquota > > These options are accepted but ignored. > > So what's the deal with this? Old data? :) Misleading really. The kernel doesn't really do anything with the quota flags. The quota tools use the presence of the flags to know when to enable or disable quotas. I copied the man-page text from ext2/3 a long time ago. > and now the funny part :/ Hmm. This is new. :-( > ------ > ~]# mount -o remount,usrquota /home/users > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: stack segment: 0000 [#1] > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: SMP > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: CPU: 0 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: EIP is at txBeginAnon+0x20/0x165 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: eax: c0c13758 ebx: 0002356c ecx: 00000000 edx: 00000001 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: esi: 00000000 edi: d3cad2cc ebp: 00000000 esp: c5563bd4 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: ds: 0068 es: 0068 ss: 0068 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: Process httpd (pid: 4671, ti=c5562000 task=d46cd030 > task.ti=c5562000) > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: Stack: 00000297 001b1baa f7901654 f7901668 d62bb8d8 > cf05f8a4 001cb0c9 f7901640 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: cf05f8a4 d1c94500 d62bb8d8 da97e080 00000000 > 001cb4b6 00000000 cf05f8a4 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: da97e080 0002356c 00000000 d3cad2cc f7f7cbc0 > 000d6860 00000000 00036da6 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: Call Trace: > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: Code: 01 83 c4 50 89 f0 5b 5e 5f 5d c3 55 57 56 53 83 ec > 44 8b 80 60 01 00 00 8b 68 18 b8 58 37 c1 c0 e8 a7 14 12 00 ff 05 b0 8f > c8 c0 <8b> 45 28 a8 04 75 11 8b 45 28 c1 e8 03 89 c2 83 e2 01 0f 84 80 > > Message from [EMAIL PROTECTED] at Tue Dec 5 21:34:54 2006 ... > server kernel: EIP: [<000da67b>] txBeginAnon+0x20/0x165 SS:ESP 0068:c5563bd4 > ------ > > > I'm pretty sure I did a "mount -o remount,usrquota" on another machine > some time before and it didn't crash, however it also added nointegrity > flag along with usrquota. nointegrity is generally not a good idea. > The crash happened on P4 3ghz (HT) with 1gb ram, kernel 2.6.18.3 with > grsecurity patch, glibc 2.3.6 (nptl), gcc 3.3.6. Apache (with quite > heavy traffic ~10mbit/s) was running at time of remount command. > > Any clues? Not really. I can try stressing the file system and issuing remounts to see if I can recreate anything like it. > -- > Miha Shaggy -- David Kleikamp IBM Linux Technology Center ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Jfs-discussion mailing list Jfs-discussion@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jfs-discussion
