[Bug 499773] Re: /var/lib/ureadahead/debugfs not removed from /etc/mtab
Hello, I'm experiencing the very same problem as Lao Meng ! Actually, I was led to this bug because of the same message telling me that my root partition was almost full. The debugfs directory didn't happen at first. But I can see it now repeatedly. Can it be related to this bug ? Or another one ? Michel -- /var/lib/ureadahead/debugfs not removed from /etc/mtab https://bugs.launchpad.net/bugs/499773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 499773] Re: /var/lib/ureadahead/debugfs not removed from /etc/mtab
I've got something similar to this going on. Here's the data: uname -a yields: Linux eRuiServer 2.6.31-19-generic-pae #56-Ubuntu SMP Thu Jan 28 02:29:51 UTC 2010 i686 GNU/Linux status ureadahead yields: ureadahead stop/waiting df yields: Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 24027628 22204940602152 98% / udev253720 208253512 1% /dev none253720 124253596 1% /dev/shm none253720 532253188 1% /var/run none253720 0253720 0% /var/lock none253720 0253720 0% /lib/init/rw none 24027628 22204940602152 98% /var/lib/ureadahead/debugfs /dev/sda2128321212 12963948 108838892 11% /home sudo du -sc * from the / dir yields: 6852bin 55076 boot 0 cdrom 332 dev 52 drivers 17932 etc du: cannot access `home/menggr/.gvfs': Permission denied 12771740home 0 initrd.img 0 initrd.img.old 383696 lib 16 lost+found 0 lpr.org 17630604media 4 mnt 4 opt du: cannot access `proc/3189/task/3189/fd/4': No such file or directory du: cannot access `proc/3189/task/3189/fdinfo/4': No such file or directory du: cannot access `proc/3189/fd/4': No such file or directory du: cannot access `proc/3189/fdinfo/4': No such file or directory du: cannot access `proc/3190': No such file or directory du: cannot access `proc/3192': No such file or directory du: cannot access `proc/3193': No such file or directory 0 proc 392 root 8512sbin 4 selinux 200 srv 0 sys 136 tmp 2842812 usr 1082940 var 0 vmlinuz 0 vmlinuz.old 34801304total From the df we can see that the /dev/sda2 partition that has /home mounted is using 12,963,948kb. This is reasonably consistent with the value reported by du, which is 12,771,740kb. But for /dev/sda1, which has everything else, df reports it is using 22,204,940kb and is 98% full; and debugfs mirrors that. But if we look at what du reports for everything besides /home (we also ignore media too because that is just an external disk) it totals out to 4,398,960kb which isn't even close to 98%. I spent most of the day trying to find what is going on here but have failed. The debugfs led me to this discussion. When I boot my server it is complaining that the root directory is almost full. Does anybody think my problem is related to this one? Any suggestions on what I can do? Thanks in advance! -- /var/lib/ureadahead/debugfs not removed from /etc/mtab https://bugs.launchpad.net/bugs/499773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 499773] Re: /var/lib/ureadahead/debugfs not removed from /etc/mtab
I'll add: On any system I have ubuntu 9.10 ( ubuntu, xubuntu, etc ) installed and on boot / reboot the following is present ( df -H ): /var/lib/ureadahead/debugfs System performance is greatly reduced ( 20% - 40% est ), so far, a simple reboot will remove this entry and performance is returned to normal. The key condition / factor is whether /var/lib/ureadahead/debugfs is present General system specs are wide: 400Mhz - 3 GHz Intel and AMD 32/64 bit, 256 MB - 4 GB RAM, 10 GB - 500 GB HDD mixed brands. As reported by others, ureadhead, will fail on boot / reboot as well, with out an failure everything is fine If I can be of any further assistance, please provide brief debug / test commands / log info request, etc and I'll be happy to provide them. -- /var/lib/ureadahead/debugfs not removed from /etc/mtab https://bugs.launchpad.net/bugs/499773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 499773] Re: /var/lib/ureadahead/debugfs not removed from /etc/mtab
Uh - you *did* run out of space on your root filesystem. :P debugfs is just lying to you and stating that it's filesystem is full too. /dev/sda1 36G 36G 0 100% / -- /var/lib/ureadahead/debugfs not removed from /etc/mtab https://bugs.launchpad.net/bugs/499773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 499773] Re: /var/lib/ureadahead/debugfs not removed from /etc/mtab
This is affecting me when trying to copy a really large file mounted over CIFS, and it then dies as if I had ran out of space (but haven't): $ time cp Ewrapped.sql /var/lib/mysql/ cp: writing `/var/lib/mysql/Ewrapped.sql': No space left on device real25m17.057s user0m0.356s sys 0m43.167s (fyi, the file is a 9GB mysql dump) This is also WEIRD: $ df -h FilesystemSize Used Avail Use% Mounted on /dev/sda1 36G 36G 0 100% / udev 1.5G 256K 1.5G 1% /dev none 1.5G 184K 1.5G 1% /dev/shm none 1.5G 164K 1.5G 1% /var/run none 1.5G 0 1.5G 0% /var/lock none 1.5G 0 1.5G 0% /lib/init/rw none 36G 36G 0 100% /var/lib/ureadahead/debugfs /dev/sda6 111G 11G 95G 10% /home debugfs with 36G/36G used, 0% free? $ status ureadahead ureadahead stop/waiting $ uname -a Linux garepa-desktop 2.6.31-16-generic #53-Ubuntu SMP Tue Dec 8 04:01:29 UTC 2009 i686 GNU/Linux $ cat /proc/self/mountinfo 15 18 0:0 / /sys rw,nosuid,nodev,noexec,relatime - sysfs none rw 16 18 0:3 / /proc rw,nosuid,nodev,noexec,relatime - proc none rw 17 18 0:15 / /dev rw,relatime - tmpfs udev rw,mode=755 18 1 8:1 / / rw,relatime - ext3 /dev/disk/by-uuid/f3dfd3ac-4485-4d7a-b8e0-bfb4f7094a9e rw,errors=remount-ro,data=writeback 19 15 0:8 / /sys/kernel/security rw,relatime - securityfs none rw 21 15 0:16 / /sys/fs/fuse/connections rw,relatime - fusectl none rw 22 15 0:5 / /sys/kernel/debug rw,relatime - debugfs none rw 23 17 0:11 / /dev/pts rw,nosuid,noexec,relatime - devpts none rw,gid=5,mode=620,ptmxmode=000 24 17 0:17 / /dev/shm rw,nosuid,nodev,relatime - tmpfs none rw 25 18 0:18 / /var/run rw,nosuid,relatime - tmpfs none rw,mode=755 26 18 0:19 / /var/lock rw,nosuid,nodev,noexec,relatime - tmpfs none rw 27 18 0:20 / /lib/init/rw rw,nosuid,relatime - tmpfs none rw,mode=755 28 18 8:6 / /home rw,nosuid,nodev,relatime - ext3 /dev/sda6 rw,errors=continue,data=writeback 29 28 0:21 / /home/garen/.gvfs rw,nosuid,nodev,relatime - fuse.gvfs-fuse-daemon gvfs-fuse-daemon rw,user_id=1000,group_id=1000 30 16 0:22 / /proc/sys/fs/binfmt_misc rw,nosuid,nodev,noexec,relatime - binfmt_misc binfmt_misc rw 20 18 0:23 / /mnt/nyquist/DailySnapshots rw,relatime - cifs //nyquist/Daily\040Snapshots rw,mand,unc=\\nyquist\Daily Snapshots,username=garepa,uid=0,noforceuid,gid=0,noforcegid,addr=10.100.0.57,file_mode=0755,dir_mode=0755,serverino,rsize=16384,wsize=57344 -- /var/lib/ureadahead/debugfs not removed from /etc/mtab https://bugs.launchpad.net/bugs/499773 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
