Ceph » CephFS

Multiple mds (3). Running commit:4385aa567de31d0ebe46e25eac802f329cf0851d.

Using the kernel client, doint a simple untar of the linux kernel source tree.

mds backtrace:

#9 0x000000000070aca2 in ceph::__ceph_assert_fail (assertion=0x753044 "num_rdlock>0", file=<value optimized out>, line=433, func=<value optimized out>) at common/assert.cc:25
#10 0x00000000005b7ff2 in SimpleLock::put_rdlock (this=0x225c580, lock=0x396ad20, mut=<value optimized out>) at mds/SimpleLock.h:433
#11 Locker::rdlock_finish (this=0x225c580, lock=0x396ad20, mut=<value optimized out>) at mds/Locker.cc:895
#12 0x00000000005b803e in Locker::rdlock_finish_set (this=0x225c580, locks=...) at mds/Locker.cc:946
#13 0x00000000005dc562 in Migrator::export_unlock (this=0x225fb40, dir=0x22a4920) at mds/Migrator.cc:1389
#14 0x00000000005dd8b5 in Migrator::export_finish (this=0x225fb40, dir=0x22a4920) at mds/Migrator.cc:1439
#15 0x00000000005de579 in Migrator::handle_export_notify_ack (this=0x225fb40, m=0x8027180) at mds/Migrator.cc:1365
#16 0x00000000004bd783 in MDS::_dispatch (this=0x2260a00, m=0x8027180) at mds/MDS.cc:1663
#17 0x00000000004bdfc7 in MDS::ms_dispatch (this=0x2260a00, m=0x8027180) at mds/MDS.cc:1561
#18 0x000000000049227a in Messenger::ms_deliver_dispatch (this=0x2260000) at msg/Messenger.h:97
#19 SimpleMessenger::dispatch_entry (this=0x2260000) at msg/SimpleMessenger.cc:352
#20 0x000000000048303c in SimpleMessenger::DispatchThread::entry (this=0x2260488) at ./msg/SimpleMessenger.h:532
#21 0x000000000049bbba in Thread::_entry_func (arg=0x916) at ./common/Thread.h:39
#22 0x00007f9d78c798ba in start_thread (arg=<value optimized out>) at pthread_create.c:300
#23 0x00007f9d7790e02d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#24 0x0000000000000000 in ?? ()