PID: 31208  TASK: ffff88013760d550  CPU: 0   COMMAND: "ll_pcc_31207"
 #0 [ffff8800a5d0b688] 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 [ffff8800a5d0b6e8] __crash_kexec at ffffffff811160a2
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/kernel/kexec_core.c: 897
 #2 [ffff8800a5d0b7b8] panic at ffffffff817d8546
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/./arch/x86/include/asm/smp.h: 93
 #3 [ffff8800a5d0b838] lbug_with_loc at ffffffffa02c1b95 [libcfs]
    /home/green/git/lustre-release/libcfs/libcfs/debug.c: 549
 #4 [ffff8800a5d0b850] cl_env_percpu_put at ffffffffa059256e [obdclass]
    /home/green/git/lustre-release/lustre/obdclass/cl_object.c: 992
 #5 [ffff8800a5d0b860] do_read_folio at ffffffffa10b87fc [lustre]
    /home/green/git/lustre-release/libcfs/include/libcfs/libcfs_debug.h: 112
 #6 [ffff8800a5d0b960] ll_readpage at ffffffffa10b939e [lustre]
    /home/green/git/lustre-release/lustre/llite/rw.c: 2374
 #7 [ffff8800a5d0b970] 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 [ffff8800a5d0b9f8] generic_file_aio_read at ffffffff811b7049
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/mm/filemap.c: 2131
 #9 [ffff8800a5d0ba80] do_file_read_iter at ffffffffa1085a6a [lustre]
    /home/green/git/lustre-release/lustre/include/lustre_compat.h: 387
#10 [ffff8800a5d0bb58] ll_file_read_iter at ffffffffa108649d [lustre]
    /home/green/git/lustre-release/lustre/llite/file.c: 2548
#11 [ffff8800a5d0bb68] ll_file_aio_read at ffffffffa1086661 [lustre]
    /home/green/git/lustre-release/lustre/llite/file.c: 2771
#12 [ffff8800a5d0bbc0] ll_file_read at ffffffffa10867d1 [lustre]
    /home/green/git/lustre-release/lustre/llite/file.c: 2794
#13 [ffff8800a5d0bca8] vfs_read at ffffffff81244899
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/read_write.c: 465
#14 [ffff8800a5d0bce0] kernel_read at ffffffff8124b6f0
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/fs/exec.c: 849
#15 [ffff8800a5d0bd10] cfs_kernel_read at ffffffffa02c12ab [libcfs]
    /home/green/git/lustre-release/libcfs/libcfs/linux/linux-prim.c: 269
#16 [ffff8800a5d0bd28] pcc_attach_data_archive at ffffffffa10f2b2a [lustre]
    /home/green/git/lustre-release/lustre/llite/pcc.c: 3782
#17 [ffff8800a5d0bdc8] pcc_readonly_attach at ffffffffa10f5764 [lustre]
    /home/green/git/lustre-release/lustre/llite/pcc.c: 4106
#18 [ffff8800a5d0be68] pcc_readonly_attach_thread at ffffffffa10f5f36 [lustre]
    /home/green/git/lustre-release/lustre/llite/pcc.c: 1842
#19 [ffff8800a5d0bea8] kthread at ffffffff810ba114
    /home/green/bk/linux-3.10.0-1160.59.1.el7-debug/kernel/kthread.c: 202
#20 [ffff8800a5d0bf50] 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