Uploaded image for project: 'Lustre'
  1. Lustre
  2. LU-8508

kernel:LustreError: 3842:0:(lu_object.c:1243:lu_device_fini()) ASSERTION( atomic_read(&d->ld_ref) == 0 ) failed: Refcount is 1

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: Lustre 2.8.0
    • Fix Version/s: Lustre 2.9.0
    • Labels:
      None
    • Environment:
    • Severity:
      3
    • Rank (Obsolete):
      9223372036854775807

      Description

      Lustre DNE2 Testing, noticed some issue with latest master builds. When mounting storage targets on servers other than ones with the MGT i get a kernel panic with the below; I have validated this is not (to the best of my ability) network, I have also tried and FE build which works and another master build (3419) which works:

       
      [root@zlfs2-oss1 ~]# mount -vvv -t lustre /dev/nvme0n1 /mnt/MDT0000
      arg[0] = /sbin/mount.lustre
      arg[1] = -v
      arg[2] = -o
      arg[3] = rw
      arg[4] = /dev/nvme0n1
      arg[5] = /mnt/MDT0000
      source = /dev/nvme0n1 (/dev/nvme0n1), target = /mnt/MDT0000
      options = rw
      checking for existing Lustre data: found
      Reading CONFIGS/mountdata
      Writing CONFIGS/mountdata
      mounting device /dev/nvme0n1 at /mnt/MDT0000, flags=0x1000000 options=osd=osd-ldiskfs,user_xattr,errors=remount-ro,mgsnode=192.168.5.21@o2ib,virgin,update,param=mgsnode=192.168.5.21@o2ib,svname=zlfs2-MDT0000,device=/dev/nvme0n1
      mount.lustre: cannot parse scheduler options for '/sys/block/nvme0n1/queue/scheduler'
      
      Message from syslogd@zlfs2-oss1 at Aug 16 21:52:33 ...
       kernel:LustreError: 3842:0:(lu_object.c:1243:lu_device_fini()) ASSERTION( atomic_read(&d->ld_ref) == 0 ) failed: Refcount is 1
      
      Message from syslogd@zlfs2-oss1 at Aug 16 21:52:33 ...
       kernel:LustreError: 3842:0:(lu_object.c:1243:lu_device_fini()) LBUG
      
      Message from syslogd@zlfs2-oss1 at Aug 16 21:52:33 ...
       kernel:Kernel panic - not syncing: LBUG
      

      Attached is some debugging / more info.

      Builds Tried:
      master b3424 - issues
      master b3423 - issues
      master b3420 - issues
      master b3419 - works
      fe 2.8 b18 - works

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                kit.westneat Kit Westneat
                Reporter:
                adam.j.roe Adam Roe (Inactive)
              • Votes:
                0 Vote for this issue
                Watchers:
                6 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: