[Bug 1382335] [NEW] mdadm+lvm+cryptsetup+big disks: "bio too big device"

[Tapani Tarvainen]

Public bug reported:

I installed two new 6TB disks (WD Red) as RAID1 and pmove'd stuff over from old
5x3TB RAID10 array to it (actually the move is still in progress, going to take some
17 hours or so) and I get lots of these (4971 so far) in dmesg:

[58693.807553] bio too big device dm-7 (664 > 8)
[58694.037060] bio too big device dm-7 (1024 > 8)

Looks like an old kernel bug that was supposedly fixed in 2012:
https://lkml.org/lkml/2012/10/15/398

The LV that apparently triggered that is 3TB in size (90% full) and
encrypted with cryptsetup.

I don't know if this is reproducible but I can try - it'd just take some
two days every time (starting with restoring 3TB from backup).

Ubuntu 14.04.1, 3.13.0-37-generic x86_64 kernel,
Intel DQ57TM mobo, LSI 9211-8i SAS/SATA controller.

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to grub2 in Ubuntu.
https://bugs.launchpad.net/bugs/1382335

Title:
  mdadm+lvm+cryptsetup+big disks: "bio too big device"

Status in “grub2” package in Ubuntu:
  New

Bug description:
  I installed two new 6TB disks (WD Red) as RAID1 and pmove'd stuff over from old
  5x3TB RAID10 array to it (actually the move is still in progress, going to take some
  17 hours or so) and I get lots of these (4971 so far) in dmesg:

  [58693.807553] bio too big device dm-7 (664 > 8)
  [58694.037060] bio too big device dm-7 (1024 > 8)

  Looks like an old kernel bug that was supposedly fixed in 2012:
  https://lkml.org/lkml/2012/10/15/398

  The LV that apparently triggered that is 3TB in size (90% full) and
  encrypted with cryptsetup.

  I don't know if this is reproducible but I can try - it'd just take some
  two days every time (starting with restoring 3TB from backup).

  Ubuntu 14.04.1, 3.13.0-37-generic x86_64 kernel,
  Intel DQ57TM mobo, LSI 9211-8i SAS/SATA controller.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1382335/+subscriptions