PID: 2677   TASK: ffff8800b53e2220  CPU: 3   COMMAND: "llog_process_th"
 #0 [ffff88009f78b708] machine_kexec at ffffffff810613ae
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/machine_kexec_64.c: 343
 #1 [ffff88009f78b768] __crash_kexec at ffffffff811160a2
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/kernel/kexec_core.c: 897
 #2 [ffff88009f78b838] crash_kexec at ffffffff81116190
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/./arch/x86/include/asm/atomic.h: 37
 #3 [ffff88009f78b850] oops_end at ffffffff817eb798
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/dumpstack.c: 201
 #4 [ffff88009f78b878] no_context at ffffffff810708c4
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/mm/fault.c: 770
 #5 [ffff88009f78b8c8] __bad_area_nosemaphore at ffffffff81070b92
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/mm/fault.c: 852
 #6 [ffff88009f78b918] bad_area_nosemaphore at ffffffff81070cb4
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/mm/fault.c: 859
 #7 [ffff88009f78b928] __do_page_fault at ffffffff817ee7d8
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/mm/fault.c: 1359
 #8 [ffff88009f78b990] trace_do_page_fault at ffffffff817eea76
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/mm/fault.c: 1396
 #9 [ffff88009f78b9d0] do_async_page_fault at ffffffff817edfe2
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/kvm.c: 289
#10 [ffff88009f78b9f0] async_page_fault at ffffffff817ea7a8
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/entry_64.S: 1432
    [exception RIP: obd_setup+342]
    RIP: ffffffffa0589226  RSP: ffff88009f78baa0  RFLAGS: 00010246
    RAX: fffffffffffffffe  RBX: fffffffffffffffe  RCX: 0000000000000000
    RDX: 0000000000000003  RSI: 0000000000000000  RDI: ffff88009f2a6b80
    RBP: ffff88009f78bb40   R8: 000000000000ffff   R9: 000000000000ffff
    R10: 0000000000000000  R11: ffff880099484000  R12: ffff88012f993ff0
    R13: 0000000000000000  R14: ffff8800b52656c0  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/./arch/x86/include/asm/atomic.h: 25
#11 [ffff88009f78bb48] class_setup at ffffffffa058a9ef [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/obd_config.c: 760
#12 [ffff88009f78bba0] class_process_config at ffffffffa058d65e [obdclass]
    /home/green/git/lustre-release/libcfs/include/libcfs/libcfs_debug.h: 126
#13 [ffff88009f78bc50] class_config_llog_handler at ffffffffa0590387 [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/obd_config.c: 2020
#14 [ffff88009f78bd20] llog_process_thread at ffffffffa054d236 [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/llog.c: 754
#15 [ffff88009f78be40] llog_process_thread_daemonize at ffffffffa054f1a2 [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/llog.c: 866
#16 [ffff88009f78bea8] kthread at ffffffff810ba114
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/kernel/kthread.c: 202
#17 [ffff88009f78bf50] ret_from_fork_nospec_begin at ffffffff817f3e5d
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/entry_64.S: 418