> I was testing code I'd written over the weekend, but it segfaulted on > shutdown after running pynfs (pynfs itself was successful.) No problems > simply starting and pkilling without doing any work. > > Gradually backed things out, until I'm at the 1a75e52 V2.6-dev.20, but still > seeing the problem on shutdown. Ran it twice to be sure. Took quite a bit of > time to run pynfs over and over.
Ok, so I've fixed the crash, but looking at some debug, the reason we are getting to where it could crash is that we are leaking export references. I'm doing some code examination and finding export and obj_handle reference leaks... So far they are all in NFS v4. I hope to post some patches early tomorrow. It would really help if things that expected everything to cleanup actually checked if everything was cleaned up... destroy_fsals should never find any exports to call shutdown_export on. Frank > Error: couldn't complete write to the log file > /home/bill/rdma/install/var/log/ganesha.log status=9 (Bad file descriptor) > message was: > 11/12/2017 19:13:01 : epoch 5a2f193a : simpson91 : ganesha.nfsd- > 13288[Admin] rpc :TIRPC :DEBUG :svc_destroy_it() 0x61900008bb80 fd 19 > xp_refs 1 af 0 port 4294967295 @ svc_xprt_shutdown:364 > > Thread 271 "ganesha.nfsd" received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0x7fff68053700 (LWP 31096)] > 0x00007fffef8ca739 in release (exp_hdl=0x61300000cec0) > at /home/bill/rdma/nfs-ganesha/src/FSAL/FSAL_VFS/export.c:79 > 79 LogDebug(COMPONENT_FSAL, "Releasing VFS export for > %s", > (gdb) bt > #0 0x00007fffef8ca739 in release (exp_hdl=0x61300000cec0) > at /home/bill/rdma/nfs-ganesha/src/FSAL/FSAL_VFS/export.c:79 > #1 0x000000000044799d in shutdown_export (export=0x61300000cec0) > at /home/bill/rdma/nfs-ganesha/src/FSAL/fsal_destroyer.c:152 > #2 0x0000000000447d66 in destroy_fsals () > at /home/bill/rdma/nfs-ganesha/src/FSAL/fsal_destroyer.c:194 > #3 0x000000000047d9c3 in do_shutdown () > at /home/bill/rdma/nfs-ganesha/src/MainNFSD/nfs_admin_thread.c:511 > #4 0x000000000047de09 in admin_thread (UnusedArg=0x0) > at /home/bill/rdma/nfs-ganesha/src/MainNFSD/nfs_admin_thread.c:531 > #5 0x00007ffff60b373a in start_thread (arg=0x7fff68053700) > at pthread_create.c:333 > #6 0x00007ffff598ae7f in clone () > at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97 > (gdb) quit > A debugging session is active. > > Inferior 1 [process 30823] will be killed. > > Quit anyway? (y or n) y > [root@simpson91 install]# > > > Thread 270 "ganesha.nfsd" received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0x7fff68087700 (LWP 6650)] > 0x00007fffef8ca739 in release (exp_hdl=0x61300000cec0) > at /home/bill/rdma/nfs-ganesha/src/FSAL/FSAL_VFS/export.c:79 > 79 LogDebug(COMPONENT_FSAL, "Releasing VFS export for > %s", > (gdb) bt > #0 0x00007fffef8ca739 in release (exp_hdl=0x61300000cec0) > at /home/bill/rdma/nfs-ganesha/src/FSAL/FSAL_VFS/export.c:79 > #1 0x000000000044799d in shutdown_export (export=0x61300000cec0) > at /home/bill/rdma/nfs-ganesha/src/FSAL/fsal_destroyer.c:152 > #2 0x0000000000447d66 in destroy_fsals () > at /home/bill/rdma/nfs-ganesha/src/FSAL/fsal_destroyer.c:194 > #3 0x000000000047d9c3 in do_shutdown () > at /home/bill/rdma/nfs-ganesha/src/MainNFSD/nfs_admin_thread.c:511 > #4 0x000000000047de09 in admin_thread (UnusedArg=0x0) > at /home/bill/rdma/nfs-ganesha/src/MainNFSD/nfs_admin_thread.c:531 > #5 0x00007ffff60b373a in start_thread (arg=0x7fff68087700) > at pthread_create.c:333 > #6 0x00007ffff5989e7f in clone () > at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97 > (gdb) quit > A debugging session is active. > > Inferior 1 [process 6378] will be killed. > > Quit anyway? (y or n) y > [root@simpson91 install]# > > > > ---------------------------------------------------------------------------- -- > Check out the vibrant tech community on one of the world's most engaging > tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Nfs-ganesha-devel mailing list > Nfs-ganesha-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Nfs-ganesha-devel mailing list Nfs-ganesha-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs-ganesha-devel
