"Buehl, Reiner" <reiner.buehl@xxxxxx> writes: > Hi Dimitry, > >> How does it happen? Do you remember any power failures happened >> previously? > > I had no power failures. The first such error appears always approx. 2 > minutes after booting the system. This behavior started after I moved > the md RAID fro Hm.. So may be this is not a barrier related. >m two smaller Seagate disks to the currently used 1TB disks. There for my first thought was a failed disk or memory but they seem to be ok based on the SMART and memtest results. > You may possibly force this to happen sooner like follows: find /your-mnt/ -ls > /dev/null #fore fstat for all inodes >> What mount options do you used? Probably you use default options >> which means that fs was mounted w/o barrier support. Even if was >> mounted >> with barriers, your raid driver may simply ignore it. > > I use default options and software raid (mdadm). Does mdadm handle barriers correct? > >> Can you please post following info: >> 1) mount options and cat /proc/mount > > /dev/md1 / ext3 defaults 01 > > bilbo:~# cat /proc/mounts > rootfs / rootfs rw 0 0 > none /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 > none /proc proc rw,nosuid,nodev,noexec,relatime 0 0 > udev /dev tmpfs rw,relatime,size=10240k,mode=755 0 0 > /dev/disk/by-uuid/a059fdf2-4ff6-4c30-ba7f-77c85e7f5d1b / ext3 rw,relatime,errors=continue,data=ordered 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,ptmxmode=000 0 0 > /dev/mapper/vg_data-lv_video /video ext3 rw,relatime,errors=continue,data=ordered 0 0 > /dev/mapper/vg_data-lv_mpg /video/film/mpg ext3 rw,relatime,errors=continue,data=ordered 0 0 > rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0 > automount(pid3007) /mnt/auto autofs rw,relatime,fd=4,pgrp=3007,timeout=120,minproto=2,maxproto=4,indirect 0 0 > automount(pid2964) /mnt/usb autofs rw,relatime,fd=4,pgrp=2964,timeout=2,minproto=2,maxproto=4,indirect 0 0 > automount(pid3062) /net autofs rw,relatime,fd=4,pgrp=3062,timeout=300,minproto=2,maxproto=4,indirect 0 0 > nfsd /proc/fs/nfsd nfsd rw,relatime 0 0 > > >> 2) Write something to your fs and sync; >> like follows "echo test > /path_to_your_mnt/test ; sync" > > Done. > >> 3) dmesg log after stage(2) > > Nothing got written to dmesg during step 2. This test was necessary to check that your md has barriers support but this may happen only if you passed '-obarrier=1' explicitly Since you use default mount options, then you use ext3 without barriers so this test is not necessary > > I currently have 2 of the EXT3-fs errors in dmesg but writing and syncing did not produce another one. > > Best regards, > Reiner. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
