[LU-8508] kernel:LustreError: 3842:0:(lu_object.c:1243:lu_device_fini()) ASSERTION( atomic_read(&d->ld_ref) == 0 ) failed: Refcount is 1

Duplicate — Fri, 16 Sep 2016 20:53:25 +0000

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

Whamcloud Community JIRA

[LU-8508] kernel:LustreError: 3842:0:(lu_object.c:1243:lu_device_fini()) ASSERTION( atomic_read(&d->ld_ref) == 0 ) failed: Refcount is 1