I was testing Ganesha NFS V2.4.0 using the POSIX FSAL on a CephFS file system, using the Ceph FUSE interface, and I am seeing ganesha.nfsd killed by an ABRT signal. I was using the same ganesha.conf file that worked with V2.3.2 and CephFS. Here is the gdb backtrace:
[Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/opt/keeper/bin/ganesha.nfsd -F -L /var/log/nfs-ganesha.log'. Program terminated with signal SIGABRT, Aborted. #0 0x00007f4fcf23ecc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 0x00007f4fcf23ecc9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #1 0x00007f4fcf2420d8 in __GI_abort () at abort.c:89 #2 0x00007f4fcf237b86 in __assert_fail_base (fmt=0x7f4fcf388830 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x575fef "refcount > 0", file=file@entry=0x575878 "/home/keeper/work/ganesha/ganesha_2.4.0/nfs-ganesha/src/SAL/state_misc.c", line=line@entry=917, function=function@entry=0x5763c0 <__PRETTY_FUNCTION__.20389> "dec_state_owner_ref") at assert.c:92 #3 0x00007f4fcf237c32 in __GI___assert_fail (assertion=0x575fef "refcount > 0", file=0x575878 "/home/keeper/work/ganesha/ganesha_2.4.0/nfs-ganesha/src/SAL/state_misc.c", line=917, function=0x5763c0 <__PRETTY_FUNCTION__.20389> "dec_state_owner_ref") at assert.c:101 #4 0x00000000004c4bd2 in dec_state_owner_ref (owner=0x7f4f4085d5e8) at /home/keeper/work/ganesha/ganesha_2.4.0/nfs-ganesha/src/SAL/state_misc.c:917 #5 0x00000000004c4fac in uncache_nfs4_owner (nfs4_owner=0x7f4f4085d638) at /home/keeper/work/ganesha/ganesha_2.4.0/nfs-ganesha/src/SAL/state_misc.c:1010 #6 0x000000000045693d in reap_expired_open_owners () at /home/keeper/work/ganesha/ganesha_2.4.0/nfs-ganesha/src/MainNFSD/nfs_reaper_thread.c:183 #7 0x0000000000456bda in reaper_run (ctx=0x7f4fc9ffc180) at /home/keeper/work/ganesha/ganesha_2.4.0/nfs-ganesha/src/MainNFSD/nfs_reaper_thread.c:247 #8 0x000000000050ab9d in fridgethr_start_routine (arg=0x7f4fc9ffc180) at /home/keeper/work/ganesha/ganesha_2.4.0/nfs-ganesha/src/support/fridgethr.c:550 #9 0x00007f4fcfa2c182 in start_thread (arg=0x7f4f43ffe700) at pthread_create.c:312 #10 0x00007f4fcf30247d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 The output for the backtrace for all the threads using the gdb command "thread apply all bt" is at: http://pasted.co/18de09f1 and the output of "thread apply all bt full" is at: http://pasted.co/72ed25ef I can upload the core file, binary and library files if needed to our public ftp site. Other info: # /opt/keeper/bin/ganesha.nfsd -v ganesha.nfsd compiled on Sep 22 2016 at 18:34:16 Release = V2.4.0 Release comment = GANESHA file server is 64 bits compliant and supports NFS v3,4.0,4.1 (pNFS) and 9P Git HEAD = 0c209a710292e24a867a6e9b9281a89563fdb148 Git Describe = V2.4.0-0-g0c209a7 # cat ganesha.conf LOG { components { ALL = INFO; #FSAL = DEBUG; } } EXPORT_DEFAULTS { SecType = none, sys; Protocols = 3, 4; Transports = TCP; } # define CephFS FUSE export EXPORT { Export_ID = 41; Path = /cephfsFUSE/top; Pseudo = /cephfsFUSE/top; Access_Type = RW; Squash = No_Root_Squash; FSAL { Name = VFS; } } OS: Ubuntu 14.04 # uname -a Linux ede-c2-gw01 4.8.0-rc7-4.8.0rc7ksafe #1 SMP Sun Sep 18 22:23:34 EDT 2016 x86_64 x86_64 x86_64 GNU/Linux # ceph -v ceph version 10.2.2 (45107e21c568dd033c2f0a3107dec8f0b0e58374) # cat /proc/mounts | grep ceph ceph-fuse /cephfsFUSE fuse.ceph-fuse rw,noatime,user_id=0,group_id=0,allow_other 0 0 The test was 3 Ubuntu 14.04 NFS clients each having 6 processes, writing 11,000 256k files in separate directory trees with 11 files per lowest level node. On each Ubuntu client, 3 processes wrote to a NFS 3 mount and 3 wrote to a NFS 4 mount. The reason for not using the CEPHFS FSAL is with Ganesha V2.3.2 I had some issues with file overwrites. After I finished my initial 2.4.0 tests with the POSIX interface I was going to retest with 2.4.0 with the CEPHFS FSAL. Best regards, Eric ------------------------------------------------------------------------------ _______________________________________________ Nfs-ganesha-devel mailing list Nfs-ganesha-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel