Details
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Bug
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Resolution: Fixed
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Minor
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Lustre 2.9.0
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None
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3
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9223372036854775807
Description
Mounting a kerberized Lustre FS but with the needed lustre_root key not installed on the client (e3) leak a partially initialized MGC device:
e3:~# LOAD=1 /usr/lib64/lustre/tests/llmount.sh ... e3:~# lctl set_param debug='+mount sec trace' debug=+mount sec trace error: set_param: setting /proc/sys/lnet/debug=+mount sec trace: Invalid argument e3:~# lctl set_param debug='+sec trace' debug=+sec trace e3:~# lctl set_param debug_mb=64 debug_mb=64 e3:~# lctl clear; mount e1@tcp:/lustre /mnt/lustre -t lustre -o user_xattr,flock,mgssec=krb5p; lctl dk > mount.dk mount.lustre: mount e1@tcp:/lustre at /mnt/lustre failed: Connection refused e3:~# lctl dl 0 UP mgc MGC192.168.122.181@tcp 93abf5fe-744b-364d-3106-e11ed3e6c2ca 4 e3:~# mount e1@tcp:/lustre /mnt/lustre -t lustre -o user_xattr,flock,mgssec=krb5p Message from syslogd@e3 at Jun 13 13:00:22 ... kernel:LustreError: 4678:0:(import.c:553:import_select_connection()) ASSERTION( dlmexp != ((void *)0) ) failed: Message from syslogd@e3 at Jun 13 13:00:22 ... kernel:LustreError: 4678:0:(import.c:553:import_select_connection()) LBUG
[ 3061.041621] LustreError: 4518:0:(gss_keyring.c:791:gss_sec_lookup_ctx_kr()) failed request key: -126 [ 3061.044555] LustreError: 4518:0:(sec.c:440:sptlrpc_req_get_ctx()) req ffff8800365d4000: fail to get context [ 3061.047399] LustreError: 4518:0:(obd_mount.c:467:lustre_start_mgc()) connect failed -111 [ 3061.049724] LustreError: 4518:0:(obd_mount.c:1342:lustre_fill_super()) Unable to mount (-111) [ 3132.373912] LustreError: 4678:0:(import.c:553:import_select_connection()) ASSERTION( dlmexp != ((void *)0) ) failed: [ 3132.377365] LustreError: 4678:0:(import.c:553:import_select_connection()) LBUG [ 3132.379678] Pid: 4678, comm: mount.lustre [ 3132.379717] Call Trace: [ 3132.379755] [<ffffffffa04e1853>] libcfs_debug_dumpstack+0x53/0x80 [libcfs] [ 3132.379765] [<ffffffffa04e1df5>] lbug_with_loc+0x45/0xc0 [libcfs] [ 3132.379806] [<ffffffffa08a7c3d>] ptlrpc_connect_import+0x133d/0x1380 [ptlrpc] [ 3132.379834] [<ffffffffa0882258>] ptlrpc_recover_import+0x258/0x550 [ptlrpc] [ 3132.379863] [<ffffffffa089d8e8>] ? ptlrpc_pinger_ir_up+0x78/0x90 [ptlrpc] [ 3132.379868] [<ffffffffa09d38ce>] ? mgc_import_event+0x10e/0x2c0 [mgc] [ 3132.379895] [<ffffffffa08aae48>] ptlrpc_reconnect_import+0x78/0x1e0 [ptlrpc] [ 3132.379908] [<ffffffffa04f2167>] ? libcfs_debug_msg+0x57/0x80 [libcfs] [ 3132.379913] [<ffffffffa09d992a>] mgc_set_info_async+0x6ea/0x1620 [mgc] [ 3132.379923] [<ffffffffa04f2167>] ? libcfs_debug_msg+0x57/0x80 [libcfs] [ 3132.379957] [<ffffffffa0671370>] lustre_start_mgc+0x1570/0x2a90 [obdclass] [ 3132.379980] [<ffffffffa0673266>] lustre_fill_super+0x246/0xb80 [obdclass] [ 3132.380000] [<ffffffffa0673020>] ? lustre_fill_super+0x0/0xb80 [obdclass] [ 3132.380027] [<ffffffff811e1ded>] mount_nodev+0x4d/0xb0 [ 3132.380048] [<ffffffffa06695e8>] lustre_mount+0x38/0x60 [obdclass] [ 3132.380052] [<ffffffff811e2799>] mount_fs+0x39/0x1b0 [ 3132.380056] [<ffffffff811fe05f>] vfs_kern_mount+0x5f/0xf0 [ 3132.380059] [<ffffffff812005ae>] do_mount+0x24e/0xa40 [ 3132.380063] [<ffffffff8116dffe>] ? __get_free_pages+0xe/0x50 [ 3132.380067] [<ffffffff81200e36>] SyS_mount+0x96/0xf0 [ 3132.380072] [<ffffffff81645ec9>] system_call_fastpath+0x16/0x1b [ 3132.380073] [ 3132.380345] Kernel panic - not syncing: LBUG [ 3132.381034] CPU: 0 PID: 4678 Comm: mount.lustre Tainted: G OE ------------ 3.10.0-327.13.1.el7.x86_64 #1
Attachments
Activity
Oleg Drokin (oleg.drokin@intel.com) merged in patch http://review.whamcloud.com/20851/
Subject: LU-8297 obd: release MGC device if connect fails
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: fb5a79bf1e060a753a2e32e9a7b1f03fa4915ee2
John L. Hammond (john.hammond@intel.com) uploaded a new patch: http://review.whamcloud.com/20851
Subject: LU-8297 obd: release MGC device if connect fails
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 33b7da4d7a9f38a3807ae489e7f8a5d17369c415
Landed to master for 2.9.0