PID: 682    TASK: ffff8800b07a1110  CPU: 2   COMMAND: "diff"
 #0 [ffff8800a871f8b0] 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 [ffff8800a871f910] __crash_kexec at ffffffff811160a2
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/kernel/kexec_core.c: 897
 #2 [ffff8800a871f9e0] panic at ffffffff817d8546
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/./arch/x86/include/asm/smp.h: 93
 #3 [ffff8800a871fa60] lbug_with_loc at ffffffffa02b0b95 [libcfs]
    /home/green/git/lustre-release/libcfs/libcfs/debug.c: 549
 #4 [ffff8800a871fa78] cl_env_percpu_put at ffffffffa058f56e [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/cl_object.c: 992
 #5 [ffff8800a871fa88] do_read_folio at ffffffffa10b97fc [lustre]
    /home/green/git/lustre-release/libcfs/include/libcfs/libcfs_debug.h: 112
 #6 [ffff8800a871fb88] ll_readpage at ffffffffa10ba39e [lustre]
    /home/green/git/lustre-release/lustre/llite/rw.c: 2374
 #7 [ffff8800a871fb98] do_generic_file_read.constprop.52 at ffffffff811b5c15
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/mm/filemap.c: 1889
 #8 [ffff8800a871fc20] generic_file_aio_read at ffffffff811b7049
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/mm/filemap.c: 2131
 #9 [ffff8800a871fca8] do_file_read_iter at ffffffffa1086a6a [lustre]
    /home/green/git/lustre-release/lustre/include/lustre_compat.h: 387
#10 [ffff8800a871fd80] ll_file_read_iter at ffffffffa108749d [lustre]
    /home/green/git/lustre-release/lustre/llite/file.c: 2548
#11 [ffff8800a871fd90] ll_file_aio_read at ffffffffa1087661 [lustre]
    /home/green/git/lustre-release/lustre/llite/file.c: 2771
#12 [ffff8800a871fde8] ll_file_read at ffffffffa10877d1 [lustre]
    /home/green/git/lustre-release/lustre/llite/file.c: 2794
#13 [ffff8800a871fed0] vfs_read at ffffffff81244899
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/read_write.c: 465
#14 [ffff8800a871ff08] sys_read at ffffffff812457cf
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/read_write.c: 577
#15 [ffff8800a871ff50] system_call_fastpath at ffffffff817f400c
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/arch/x86/kernel/entry_64.S: 511
    RIP: 00007fc525754b40  RSP: 00007ffeaae29cb8  RFLAGS: 00000206
    RAX: 0000000000000000  RBX: 00007fc51ed21010  RCX: fffffffffffffff0
    RDX: 0000000000400000  RSI: 00007fc51ed21010  RDI: 0000000000000003
    RBP: 7fffffffffffffff   R8: 0000000000006000   R9: 0000000000004000
    R10: 00007ffeaae29720  R11: 0000000000000246  R12: 00007fc51f121010
    R13: 0000000000000003  R14: 00007fc51ed21010  R15: 0000000000400000
    ORIG_RAX: 0000000000000000  CS: 0033  SS: 002b