Basically I have three loose disks and one lvm combined to form a aufs-filesystem. I've then mounted this into /storage. When I try to unmount the main aufs mount, I get a kernel oops and no change in the mtab. (nor on the disk) I've also had a problem with a directory suddenly appearing as neither a directory nor a file. (ls -l shows the directory as a file (no 'd' flag), rm on the directory says 'rm: cannot remove `dir': Is a directory' - while rmdir on it says 'rmdir: dir: Not a directory') The latter is not reproducible (I started using aufs today), but the former is reproducible.
Information: [EMAIL PROTECTED]:~$ cat /proc/mounts rootfs / rootfs rw 0 0 none /sys sysfs rw,nosuid,nodev,noexec 0 0 none /proc proc rw,nosuid,nodev,noexec 0 0 udev /dev tmpfs rw 0 0 /dev/disk/by-uuid/5c6fcc95-c3c3-4526-a868-33cb76d79471 / ext3 rw,data=ordered 0 0 /dev/disk/by-uuid/5c6fcc95-c3c3-4526-a868-33cb76d79471 /dev/.static/dev ext3 rw,data=ordered 0 0 tmpfs /var/run tmpfs rw,nosuid,nodev,noexec 0 0 tmpfs /var/lock tmpfs rw,nosuid,nodev,noexec 0 0 tmpfs /dev/shm tmpfs rw 0 0 devpts /dev/pts devpts rw 0 0 usbfs /dev/bus/usb/.usbfs usbfs rw 0 0 udev /proc/bus/usb tmpfs rw 0 0 usbfs /proc/bus/usb/.usbfs usbfs rw 0 0 tmpfs /var/run tmpfs rw,nosuid,nodev,noexec 0 0 tmpfs /var/lock tmpfs rw,nosuid,nodev,noexec 0 0 /dev/mapper/main-storage /vault/lvm ext3 rw,data=ordered 0 0 /dev/disk/by-uuid/d61a06e4-2830-44e6-95ba-5e54e64a9736 /vault/hdc ext3 rw,data=ordered 0 0 /dev/sdd1 /vault/sdd xfs rw 0 0 /dev/sda1 /vault/sda xfs rw 0 0 none /storage aufs rw,xino=/vault/sdd/.aufs.xino,br:/vault/sdd=rw:/vault/sda=rw:/vault/hdc=rw:/vault/lvm=rw 0 0 [EMAIL PROTECTED]:~$ sudo umount /storage Segmentation fault [EMAIL PROTECTED]:~$ grep AUFS_VERSION /root/aufs.wcvs/aufs/include/linux/aufs_type.h #define AUFS_VERSION "20070219" [EMAIL PROTECTED]:~$ uname -a Linux datamania 2.6.17-10-server #2 SMP Tue Dec 5 22:29:32 UTC 2006 i686 GNU/Linux [EMAIL PROTECTED]:~$ dmesg|tail -n 24 [ 78.453998] br0: port 1(eth0) entering forwarding state [ 209.826244] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 209.826369] printing eip: [ 209.826421] d0b8a06e [ 209.826428] *pde = 08792001 [ 209.826484] Oops: 0002 [#1] [ 209.826535] SMP [ 209.826650] Modules linked in: bridge aufs xfs dm_mod md_mod lp sg psmouse parport_pc serio_raw evdev i2c_piix4 parport floppy i2c_core r1000 r8169 shpchp pci_hotplug intel_agp agpgart 3c59x mii pcspkr ext3 jbd uhci_hcd usbcore ide_generic sd_mod sata_sil libata scsi_mod ide_disk piix generic processor fbcon tileblit font bitblit softcursor vesafb capability commoncap [ 209.828348] CPU: 0 [ 209.828353] EIP: 0060:[<d0b8a06e>] Not tainted VLI [ 209.828360] EFLAGS: 00010286 (2.6.17-10-server #2) [ 209.828569] EIP is at aufs_umount_begin+0xe/0x50 [aufs] [ 209.828630] eax: 00000000 ebx: ceb3ce40 ecx: d0b8a060 edx: ffff0001 [ 209.828693] esi: c87a6000 edi: 00000000 ebp: c87a7f50 esp: c87a7f3c [ 209.828752] ds: 007b es: 007b ss: 0068 [ 209.828810] Process umount (pid: 4296, threadinfo=c87a6000 task=cca4ba90) [ 209.828859] Stack: 00000000 c0187ea0 00000000 ceb3ce40 cf6bd600 c1326df8 ceb3ce40 00000000 [ 209.829237] 00000286 c86011d8 00000001 00000001 00000000 b7d41000 cfaf1580 c015b236 [ 209.829617] ffffffff b7d42000 cfaf1584 c86013a4 b7d42000 c86013b0 c87a7f94 c87a7f94 [ 209.829995] Call Trace: [ 209.830092] <c0187ea0> sys_umount+0x110/0x2a0 <c015b236> do_munmap+0x186/0x1e0 [ 209.830429] <c0188047> sys_oldumount+0x17/0x20 <c0102f93> sysenter_past_esp+0x54/0x75 [ 209.830738] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 b9 30 f4 b9 d0 e9 56 11 60 ef 8d b6 00 00 00 00 53 89 c3 e8 d8 10 00 00 ba 01 00 ff ff 90 <0f> c1 10 85 d2 0f 85 50 10 00 00 89 d8 e8 c0 10 00 00 f6 40 20 [ 209.833015] EIP: [<d0b8a06e>] aufs_umount_begin+0xe/0x50 [aufs] SS:ESP 0068:c87a7f3c ------------------------------------------------------------------------- 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