Hi. I have a debian ftp server with aufs. Everything is well, but a some time ago I have seen in the dmesg next errors:
[169096.132814] aufs au_do_pin:423:vsftpd[14546]: err 0 [169114.602425] aufs au_do_pin:423:vsftpd[14575]: err 0 [169116.245115] aufs au_do_pin:423:vsftpd[14575]: err 0 [178857.557104] aufs au_do_pin:423:vsftpd[21351]: err 0 [243074.982168] aufs au_do_pin:423:vsftpd[29191]: err 0 Can this be because of high load of the server? I have a big load average lately, which sometimes per day grow up to 7 (it's many for 1 processor machine). I tried to update kernel with aufs. I downloaded 2.6.32.10 vanilla kernel and latest aufs2-32 patch with latest aufs2-utils. But errors is still occured. Now I have approximately 15 such errors in a day. I think this trouble is not in aufs, because during last year this server worked great and no hardware and software upgrades was made. But what wrong?.. OS - Debian 4.0 kernel - 2.6.32.10-aufs aufs ver from dmesg - aufs 2-standalone.tree-32-20100322 ~$ cat /proc/mounts rootfs / rootfs rw 0 0 none /sys sysfs rw,relatime 0 0 none /proc proc rw,relatime 0 0 udev /dev tmpfs rw,relatime,size=10240k,mode=755 0 0 /dev/sda1 / ext3 rw,relatime,errors=remount-ro,data=writeback 0 0 /dev/sda1 /dev/.static/dev ext3 ro,relatime,errors=remount-ro,data=writeback 0 0 tmpfs /lib/init/rw tmpfs rw,nosuid,relatime,mode=755 0 0 usbfs /proc/bus/usb usbfs rw,nosuid,nodev,noexec,relatime 0 0 tmpfs /dev/shm tmpfs rw,nosuid,nodev,relatime 0 0 devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620 0 0 /dev/sda3 /home ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/loop/0 /dist/bin1 iso9660 ro,relatime 0 0 /dev/loop1 /dist/bin2 iso9660 ro,relatime 0 0 /dev/loop2 /dist/bin3 iso9660 ro,relatime 0 0 /dev/sdb1 /home/ftp/sdb1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sdc1 /home/ftp/sdc1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sdd1 /home/ftp/sdd1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sde1 /home/ftp/sde1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sdf1 /home/ftp/sdf1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sdg1 /home/ftp/sdg1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sdh1 /home/ftp/sdh1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sdi1 /home/ftp/sdi1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sdj1 /home/ftp/sdj1 ext3 rw,relatime,errors=continue,data=writeback 0 0 /dev/sdk1 /home/ftp/sdk1 ext3 rw,relatime,errors=continue,data=writeback 0 0 none /pub aufs rw,relatime,si=e170eea5,create=mfs 0 0 ~$ cat /etc/fstab # /etc/fstab: static file system information. # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 /dev/sda1 / ext3 defaults,errors=remount-ro 0 1 /dev/sda2 none swap sw 0 0 /dev/sda3 /home ext3 defaults 0 0 # FTP repository entries /dev/sdb1 /home/ftp/sdb1 ext3 auto,rw 0 0 /dev/sdc1 /home/ftp/sdc1 ext3 auto,rw 0 0 /dev/sdd1 /home/ftp/sdd1 ext3 auto,rw 0 0 /dev/sde1 /home/ftp/sde1 ext3 auto,rw 0 0 /dev/sdf1 /home/ftp/sdf1 ext3 auto,rw 0 0 /dev/sdg1 /home/ftp/sdg1 ext3 auto,rw 0 0 /dev/sdh1 /home/ftp/sdh1 ext3 auto,rw 0 0 /dev/sdi1 /home/ftp/sdi1 ext3 auto,rw 0 0 /dev/sdj1 /home/ftp/sdj1 ext3 auto,rw 0 0 /dev/sdk1 /home/ftp/sdk1 ext3 auto,rw 0 0 # aufs entry none /pub aufs auto,br:/home/ftp/sdj1=rw:/home/ftp/sdk1=rw:/home/ftp/sdi1=rw:/home/ftp/sdb1/pub=rw:/home/ftp/sdc1=rw:/home/ftp/sdd1=rw:/home/ftp/sde1=rw:/home/ftp/sdf1=rw:/home/ftp/sdg1=rw:/home/ftp/sdh1=rw,create=mfs 00 ~$ ls /sys/module/aufs/ parameters ~$ ls /sys/module/aufs/parameters/ brs ~$ cat /sys/module/aufs/parameters/brs 1 ~$ ls /sys/fs/aufs/ si_e170eea5 ~$ ls /sys/fs/aufs/si_e170eea5/ br0 br1 br2 br3 br4 br5 br6 br7 br8 br9 xi_path $ cat /sys/fs/aufs/si_e170eea5/br0 /home/ftp/sdj1=rw ~$ cat /sys/fs/aufs/si_e170eea5/br1 /home/ftp/sdk1=rw ~$ cat /sys/fs/aufs/si_e170eea5/br2 /home/ftp/sdi1=rw ~$ cat /sys/fs/aufs/si_e170eea5/br3 /home/ftp/sdb1/pub=rw ~$ cat /sys/fs/aufs/si_e170eea5/br4 /home/ftp/sdc1=rw ~$ cat /sys/fs/aufs/si_e170eea5/br5 /home/ftp/sdd1=rw ~$ cat /sys/fs/aufs/si_e170eea5/br6 /home/ftp/sde1=rw ~$ cat /sys/fs/aufs/si_e170eea5/br7 /home/ftp/sdf1=rw ~$ cat /sys/fs/aufs/si_e170eea5/br8 /home/ftp/sdg1=rw ~$ cat /sys/fs/aufs/si_e170eea5/br9 /home/ftp/sdh1=rw ~$ cat /sys/fs/aufs/si_e170eea5/xi_path /home/ftp/sdj1/.aufs.xino ~$ grep CONFIG_AUFS /boot/config-2.6.32.10-aufs CONFIG_AUFS_FS=y CONFIG_AUFS_BRANCH_MAX_127=y # CONFIG_AUFS_BRANCH_MAX_511 is not set # CONFIG_AUFS_BRANCH_MAX_1023 is not set # CONFIG_AUFS_BRANCH_MAX_32767 is not set CONFIG_AUFS_HINOTIFY=y CONFIG_AUFS_RDU=y # CONFIG_AUFS_SP_IATTR is not set # CONFIG_AUFS_SHWH is not set # CONFIG_AUFS_BR_RAMFS is not set # CONFIG_AUFS_BR_FUSE is not set CONFIG_AUFS_BDEV_LOOP=y # CONFIG_AUFS_DEBUG is not set
config.gz
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