9:16 p.m.
Nfs-ganesha V2.7.4 with the following MDCACHE patches applied:
https://review.gerrithub.io/c/ffilz/nfs-ganesha/+/457970
https://github.com/nfs-ganesha/nfs-ganesha/commit/c98ad1e238f5db9db5ab8db...
https://github.com/nfs-ganesha/nfs-ganesha/commit/136df4f262c3f9bc29df456...
Crash when freeing a dirent.
(gdb) bt
#0 0x00007fe0a2084277 in raise () from /lib64/libc.so.6
#1 0x00007fe0a2085968 in abort () from /lib64/libc.so.6
#2 0x00007fe0a20c6d97 in __libc_message () from /lib64/libc.so.6
#3 0x00007fe0a20cf4f9 in _int_free () from /lib64/libc.so.6
#4 0x0000000000543e9c in gsh_free (p=0x1b72140) at /src/src/include/abstract_mem.h:246
#5 0x0000000000544b0c in mdcache_avl_remove (parent=0x1b17000, dirent=0x1b72140)
at /src/src/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_avl.c:240
#6 0x0000000000545e4d in mdcache_avl_clean_trees (parent=0x1b17000)
at /src/src/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_avl.c:614
#7 0x000000000053a11b in mdcache_dirent_invalidate_all (entry=0x1b17000)
at /src/src/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_helpers.c:606
#8 0x0000000000541b15 in mdcache_readdir_chunked (directory=0x1b17000, whence=5012127,
dir_state=0x7fe097debaf0,
cb=0x4323ed <populate_dirent>, attrmask=0, eod_met=0x7fe097debfeb)
at /src/src/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_helpers.c:2864
#9 0x000000000053054c in mdcache_readdir (dir_hdl=0x1b17038, whence=0x7fe097debad0,
dir_state=0x7fe097debaf0,
cb=0x4323ed <populate_dirent>, attrmask=0, eod_met=0x7fe097debfeb)
at /src/src/FSAL/Stackable_FSALs/FSAL_MDCACHE/mdcache_handle.c:559
#10 0x0000000000432d14 in fsal_readdir (directory=0x1b17038, cookie=5012127,
nbfound=0x7fe097debfec,
eod_met=0x7fe097debfeb, attrmask=0, cb=0x491d35 <nfs3_readdir_callback>,
opaque=0x7fe097debfa0)
at /src/src/FSAL/fsal_helper.c:1164
#11 0x0000000000491b1d in nfs3_readdir (arg=0x1e12508, req=0x1e11e00, res=0x1be41e0)
at /src/src/Protocols/NFS/nfs3_readdir.c:289
#12 0x0000000000457c16 in nfs_rpc_process_request (reqdata=0x1e11e00) at
/src/src/MainNFSD/nfs_worker_thread.c:1328
#13 0x00000000004583d5 in nfs_rpc_valid_NFS (req=0x1e11e00) at
/src/src/MainNFSD/nfs_worker_thread.c:1548
#14 0x00007fe0a3821034 in svc_vc_decode (req=0x1e11e00) at
/src/src/libntirpc/src/svc_vc.c:829
#15 0x000000000044adc5 in nfs_rpc_decode_request (xprt=0x1b040e0, xdrs=0x1be4000)
at /src/src/MainNFSD/nfs_rpc_dispatcher_thread.c:1345
#16 0x00007fe0a3820f45 in svc_vc_recv (xprt=0x1b040e0) at
/src/src/libntirpc/src/svc_vc.c:802
#17 0x00007fe0a381d689 in svc_rqst_xprt_task (wpe=0x1b042f8) at
/src/src/libntirpc/src/svc_rqst.c:769
#18 0x00007fe0a381dae6 in svc_rqst_epoll_events (sr_rec=0x1ae45f0, n_events=1)
at /src/src/libntirpc/src/svc_rqst.c:941
#19 0x00007fe0a381dd7b in svc_rqst_epoll_loop (sr_rec=0x1ae45f0) at
/src/src/libntirpc/src/svc_rqst.c:1014
---Type <return> to continue, or q <return> to quit---q
Quit
(gdb) select-frame 5
(gdb) info args
parent = 0x1b17000
dirent = 0x1b72140
(gdb) info locals
chunk = 0x1b4b510
__func__ = "mdcache_avl_remove"
(gdb) print *chunk
$1 = {chunks = {next = 0x1b172a0, prev = 0x1b172a0}, dirents = {next = 0x1b29930, prev =
0x1bc2840},
parent = 0x1b17000, chunk_lru = {q = {next = 0x0, prev = 0x0}, qid = LRU_ENTRY_L1,
refcnt = 0, flags = 0,
lane = 16, cf = 0}, reload_ck = 5012127, next_ck = 0, num_entries = 297}
(gdb) print *dirent
$2 = {chunk_list = {next = 0x0, prev = 0x0}, chunk = 0x0, node_name = {left = 0x0, right =
0x0, parent = 28852730},
node_ck = {left = 0x1b78ff0, right = 0x1b68970, parent = 28718322}, node_sorted = {left
= 0x0, right = 0x0,
parent = 0}, ck = 5019809, eod = false, namehash = 6207075547366218433, ckey = {hk =
15362064496009940491,
fsal = 0x7fe09f949080 <FOO>, kv = {addr = 0x0, len = 0}}, flags = 0, entry =
0x0, name = 0x1b721f0 "random.37",
name_buffer = 0x1b721f0 "random.37"}
(gdb)
I am happy to provide any additional debug info you want from the core.
Thanks,
Vandana