PID: 12882  TASK: ffff8f9f18c24f80  CPU: 0   COMMAND: "umount"
 #0 [ffffad1fc1c7f958] machine_kexec at ffffffff954850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffad1fc1c7f9b0] __crash_kexec at ffffffff9563e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffad1fc1c7fa70] crash_kexec at ffffffff9563fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffad1fc1c7fa88] oops_end at ffffffff95437cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffad1fc1c7faa8] die_addr at ffffffff95437f86
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 437
 #5 [ffffad1fc1c7fad0] do_general_protection at ffffffff95433128
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/traps.c: 663
 #6 [ffffad1fc1c7fb60] general_protection at ffffffff96400f5e
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 1235
    [exception RIP: memset_erms+9]
    RIP: ffffffff963b9b39  RSP: ffffad1fc1c7fc18  RFLAGS: 00010202
    RAX: 0000000000000000  RBX: b594ea168a8d810a  RCX: 0000000000000160
    RDX: 0000000000000160  RSI: 0000000000000000  RDI: b05da54d58a72205
    RBP: ffff8f9f13972000   R8: ffffffff98632cc0   R9: b05da54d58a72205
    R10: ffff8f9f05c58c00  R11: ffffad1fc1c7fcc8  R12: 0000000000608040
    R13: ffff8f9f13972000  R14: ffffffffc11cfcd1  R15: 0000000000000016
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/lib/memset_64.S: 66
 #7 [ffffad1fc1c7fc10] osc_session_init at ffffffffc11cfcd1 [osc]
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/slab.h: 722
 #8 [ffffad1fc1c7fc60] cl_sb_fini at ffffffffc1b3a909 [lustre]
    /home/green/git/lustre-release/lustre/llite/vvp_dev.c: 315
 #9 [ffffad1fc1c7fca0] lu_context_init at ffffffffc08b431c [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/lu_object.c: 1774
#10 [ffffad1fc1c7fcd0] cl_env_new at ffffffffc08be153 [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/cl_object.c: 724
#11 [ffffad1fc1c7fd08] cl_env_get at ffffffffc08be3d3 [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/cl_object.c: 790
#12 [ffffad1fc1c7fd38] cl_sb_fini at ffffffffc1b3a909 [lustre]
    /home/green/git/lustre-release/lustre/llite/vvp_dev.c: 315
#13 [ffffad1fc1c7fd60] ll_put_super at ffffffffc1ae5847 [lustre]
    /home/green/git/lustre-release/lustre/llite/llite_lib.c: 1102
#14 [ffffad1fc1c7fe60] generic_shutdown_super at ffffffff958d46d1
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/fs/super.c: 462
#15 [ffffad1fc1c7fe78] kill_anon_super at ffffffff958d50cc
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/fs/super.c: 1094
#16 [ffffad1fc1c7fe88] lustre_kill_super at ffffffffc1b276aa [lustre]
    /home/green/git/lustre-release/lustre/llite/super25.c: 262
#17 [ffffad1fc1c7fe98] deactivate_locked_super at ffffffff958d4332
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/fs/super.c: 340
#18 [ffffad1fc1c7feb0] deactivate_super at ffffffff958d4533
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/fs/super.c: 364
#19 [ffffad1fc1c7fec0] cleanup_mnt at ffffffff9590b8ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/fs/namespace.c: 115
#20 [ffffad1fc1c7fed0] __cleanup_mnt at ffffffff9590b9f6
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/fs/namespace.c: 1147
#21 [ffffad1fc1c7fed8] task_work_run at ffffffff95552ae6
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/task_work.c: 137
#22 [ffffad1fc1c7ff10] exit_to_usermode_loop at ffffffff9540387d
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/tracehook.h: 188
#23 [ffffad1fc1c7ff38] do_syscall_64 at ffffffff95404956
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/common.c: 201
#24 [ffffad1fc1c7ff50] entry_SYSCALL_64_after_hwframe at ffffffff964000bd
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 156
    RIP: 00007fd3b77048fb  RSP: 00007ffdfac01b68  RFLAGS: 00000246
    RAX: 0000000000000000  RBX: 000055e444ac6a40  RCX: 00007fd3b77048fb
    RDX: 0000000000000001  RSI: 0000000000000000  RDI: 000055e444ac93d0
    RBP: 0000000000000000   R8: 000055e444acf3c0   R9: 000055e444ac5010
    R10: 0000000000000000  R11: 0000000000000246  R12: 000055e444ac93d0
    R13: 00007fd3b8588184  R14: 000055e444ac7ab0  R15: 00000000ffffffff
    ORIG_RAX: 00000000000000a6  CS: 0033  SS: 002b