PID: 6682   TASK: ffffa0b187ee8000  CPU: 2   COMMAND: "ll_ost_io00_001"
 #0 [ffffb8c403a63688] machine_kexec at ffffffff9ac850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffb8c403a636e0] __crash_kexec at ffffffff9ae3e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffb8c403a637a0] crash_kexec at ffffffff9ae3fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffb8c403a637b8] oops_end at ffffffff9ac37cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffb8c403a637d8] no_context.cold.27 at ffffffff9aca1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffb8c403a63830] __bad_area_nosemaphore at ffffffff9aca0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffb8c403a63878] bad_area_nosemaphore at ffffffff9aca06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffb8c403a63880] do_user_addr_fault at ffffffff9aca10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffb8c403a638d0] __do_page_fault at ffffffff9aca15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffb8c403a638f0] do_page_fault at ffffffff9aca1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffb8c403a63920] page_fault at ffffffff9bc00f8e
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 1236
    [exception RIP: arc_buf_size+32]
    RIP: ffffffffc0660e20  RSP: ffffb8c403a639d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffffa0b1890bf008  RCX: 0000000000000001
    RDX: ffffa0b184c0ee00  RSI: 00000000b0000202  RDI: ffffa0b1a01e5860
    RBP: 0000000000000001   R8: 0000000000000001   R9: 0000000000000000
    R10: ffffa0b1ad03ef00  R11: ffffa0b1a73bf8e8  R12: ffffa0b082098000
    R13: ffffa0b1bcb00000  R14: ffffa0b082098000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffb8c403a639d0] osd_bufs_put at ffffffffc1d53d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffb8c403a63a18] ofd_release_chunk_lnb at ffffffffc2206ca2 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffb8c403a63a40] ofd_commitrw_write at ffffffffc21f3708 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffb8c403a63ae0] ofd_commitrw at ffffffffc21faca9 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffb8c403a63bb8] tgt_brw_write at ffffffffc156651c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffb8c403a63d78] tgt_handle_request0 at ffffffffc155ecc7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffb8c403a63da8] tgt_request_handle at ffffffffc1560965 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffb8c403a63e28] ptlrpc_server_handle_request at ffffffffc14589a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffb8c403a63e90] ptlrpc_main at ffffffffc145bbc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffb8c403a63f10] kthread at ffffffff9ad57041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffb8c403a63f50] ret_from_fork at ffffffff9bc001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330