[DRBD-user] Re: OOPS with drbd, lvm and XFS on debian xen 2.6.16

Igor Morgado igormorgado.listas at gmail.com
Wed Jul 5 21:30:10 CEST 2006

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Sorry to touch in it again. But I was simply ignored, is this report
erroneous? May I add some information to get some kind of answer about this?
There is other mail list to report this?

Because Im really scared I lost ALL DATA from this volume after this
happened. It was a test volume but I want to put this over real systems.

Any tips.



On 7/3/06, Igor Morgado <igormorgado.listas at gmail.com> wrote:
>
> This happned after a drbdadm resize in my resource (I had extended the
> device with lvm), on a debian gnu/linux (the oops is on the end of report)
>
> magratea:~# uname -a
> Linux magratea 2.6.16-2-xen-686 #1 SMP Tue May 23 05:46:45 CEST 2006 i686
> GNU/Linux
>
>
> Im running LVM on top of DRBD
>
>
> magratea:~# lvm version
>   LVM version:     2.01.04 (2005-02-09)
>   Library version: 1.01.00-ioctl (2005-01-17)
>   Driver version:  4.5.0
>
>
> drbd version is:
> Version: 8.0pre3 (api:82)
> SVN Revision: 2169 build by root at magratea, 2006-06-29 17:09:10
>
>
> My config (and resource of drbd)
> global {
>     minor-count 15;
> }
>
> common {
>         startup {
>                 wfc-timeout  0;
>                 degr-wfc-timeout 120;    # 2 minutes.
>         }
>         disk {
>                 on-io-error     detach;
>         }
>         net {
>                 timeout       60;    #  6 seconds  (unit = 0.1 seconds)
>                 connect-int   10;    # 10 seconds  (unit = 1 second)
>                 ping-int      10;    # 10 seconds  (unit = 1 second)
>                 max-buffers     2048;
>                 max-epoch-size  2048;
>                 ko-count 4;
>                 allow-two-primaries;
>         }
>         syncer {
>                 rate            100M;
>                 al-extents      257;
>         }
> }
>
> resource marvin.root {
>         protocol B;
>         on magratea {
>                 device          /dev/drbd0;
>                 disk            /dev/mapper/arr0-marvin.root;
>                 address         10.255.255.1:7788;
>                 meta-disk       internal;
>         }
>         on cricket {
>                 device          /dev/drbd0;
>                 disk            /dev/mapper/arr0-marvin.root;
>                 address         10.255.255.2:7788;
>                 meta-disk       internal;
>         }
> }
>
>
> The volume
>
> magratea:~# lvdisplay /dev/arr0/marvin.root
>   --- Logical volume ---
>   LV Name                /dev/arr0/marvin.root
>   VG Name                arr0
>   LV UUID                DFLxkR-y3by-9Q95-bs5I-iHAq-Y9eM-AWJ8J6
>   LV Write Access        read/write
>   LV Status              available
>   # open                 2
>   LV Size                1.00 GB
>   Current LE             256
>   Segments               1
>   Allocation             inherit
>   Read ahead sectors     0
>   Block device           254:4
>
>
> The syslog...
>
> Jul  3 17:49:21 magratea kernel: Unable to handle kernel NULL pointer
> dereference at virtual address 0000001c
> Jul  3 17:49:21 magratea kernel:  printing eip:
> Jul  3 17:49:21 magratea kernel: c13af1e0
> Jul  3 17:49:21 magratea kernel: *pde = ma 00000000 pa fffff000
> Jul  3 17:49:21 magratea kernel: Oops: 0002 [#1]
> Jul  3 17:49:21 magratea kernel: SMP
> Jul  3 17:49:21 magratea kernel: Modules linked in: drbd xt_physdev
> iptable_filter ip_tables x_tables ipv6 bridge megaraid ext2 mbcache dm_mod
> ide_disk evdev mousedev tsdev hw_random sg pcspkr rtc floppy serial_core
> psmouse shpchp pci_hotplug serio_raw xfs exportfs sd_mod usbhid ide_cd cdrom
> megaraid_mbox scsi_mod megaraid_mm uhci_hcd piix ehci_hcd generic usbcore
> ide_core tg3 thermal processor fan
> Jul  3 17:49:21 magratea kernel: CPU:    0
> Jul  3 17:49:21 magratea kernel: EIP:    0061:[<c13af1e0>]    Not tainted
> VLI
> Jul  3 17:49:21 magratea kernel: EFLAGS: 00010293   (2.6.16-2-xen-686 #1)
> Jul  3 17:49:21 magratea kernel: EIP is at drbd_ioctl+0x33a/0xafd [drbd]
> Jul  3 17:49:21 magratea kernel: eax: 00000000   ebx: 40084410   ecx:
> 00000015   edx: 00000000
> Jul  3 17:49:21 magratea kernel: esi: bf5368c0   edi: 00000000   ebp:
> be654808   esp: bde69e28
> Jul  3 17:49:21 magratea kernel: ds: 007b   es: 007b   ss: 0069
> Jul  3 17:49:21 magratea kernel: Process drbdsetup (pid: 13403,
> threadinfo=bde68000 task=bf521030)
> Jul  3 17:49:21 magratea kernel: Stack: <0>bf2cee40 b00fa964 00000310
> 00000001 00000000 00000000 00000004 00001000
> Jul  3 17:49:21 magratea kernel:        b8269684 b8269684 c1229b94
> b8269684 00000008 00000000 00000000 00000000
> Jul  3 17:49:21 magratea kernel:        b8269684 00000008 be558664
> 00000006 0f22a09c 00000000 bde69ef0 bde69ef0
> Jul  3 17:49:21 magratea kernel: Call Trace:
> Jul  3 17:49:21 magratea kernel:  [<c1229b94>] xfs_access+0x2b/0x33 [xfs]
> Jul  3 17:49:21 magratea kernel:  [<b0106d66>] do_gettimeofday+0x4d/0x1cc
> Jul  3 17:49:21 magratea kernel:  [<b01345cd>] find_get_page+0x1b/0x5d
> Jul  3 17:49:21 magratea kernel:  [<b013534d>] filemap_nopage+0xc5/0x2e7
> Jul  3 17:49:21 magratea kernel:  [<b0135419>] filemap_nopage+0x191/0x2e7
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b01a91bb>]
> blkdev_driver_ioctl+0x40/0x58
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b01a9387>] blkdev_ioctl+0x1b4/0x1c3
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b0156c5c>] block_ioctl+0x1a/0x1e
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b015f284>] do_ioctl+0x28/0x66
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b015f54c>] vfs_ioctl+0x17e/0x18c
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b015f5a0>] sys_ioctl+0x46/0x62
> Jul  3 17:49:21 magratea kernel:  [<b0325900>] inflate_codes+0x26e/0x3fa
> Jul  3 17:49:21 magratea kernel:  [<b0104665>] syscall_call+0x7/0xb
> Jul  3 17:49:21 magratea kernel: Code: 0f b6 85 5c 02 00 00 c7 44 24 38 8d
> ff ff ff 24 0f 3c 0a 0f 84 be 07 00 00 c7 44 24 38 00 00 00 00 8b bc 24 c4
> 00 00 00 8b 45 34 <89> 78 1c c7 40 20 00 00 00 00 68 fd 04 00 00 68 60 20 3c
> c1 55
> Jul  3 17:49:21 magratea kernel: klogd 1.4.1, ---------- state change
> ----------
> Jul  3 17:49:21 magratea kernel: No module symbols loaded - kernel modules
> not enabled.
>
>
>
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