PID: 8085   TASK: ffff92b0c2f58000  CPU: 1   COMMAND: "ll_ost_io00_002"
 #0 [ffffb5b284753678] machine_kexec at ffffffffb9a850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffb5b2847536d0] __crash_kexec at ffffffffb9c3e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffb5b284753790] crash_kexec at ffffffffb9c3fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffb5b2847537a8] oops_end at ffffffffb9a37cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffb5b2847537c8] no_context.cold.27 at ffffffffb9aa1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffb5b284753820] __bad_area_nosemaphore at ffffffffb9aa0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffb5b284753868] bad_area_nosemaphore at ffffffffb9aa06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffb5b284753870] do_user_addr_fault at ffffffffb9aa10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffb5b2847538c0] __do_page_fault at ffffffffb9aa15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffb5b2847538e0] do_page_fault at ffffffffb9aa1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffb5b284753910] page_fault at ffffffffbaa00f8e
    /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: ffffffffc086be20  RSP: ffffb5b2847539c0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff92b0fbfe7728  RCX: 0000000000000002
    RDX: ffff92b0fbdd9c00  RSI: 00000000b0000202  RDI: ffff92b0fbfd74a0
    RBP: 0000000000000002   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff92b0e12df300  R11: ffff92afc1434108  R12: ffff92b0ffe84000
    R13: ffff92b0fc6a0000  R14: ffff92b0ffe84000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffb5b2847539c0] osd_bufs_put at ffffffffc1f5cd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffb5b284753a08] ofd_release_chunk_lnb at ffffffffc2410882 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffb5b284753a30] ofd_commitrw_write at ffffffffc23fc376 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1761
#14 [ffffb5b284753ad0] ofd_commitrw at ffffffffc240407c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1885
#15 [ffffb5b284753ba8] tgt_brw_write at ffffffffc176f588 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1189
#16 [ffffb5b284753d78] tgt_handle_request0 at ffffffffc1767bf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 644
#17 [ffffb5b284753da8] tgt_request_handle at ffffffffc1769895 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffb5b284753e28] ptlrpc_server_handle_request at ffffffffc16619a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffb5b284753e90] ptlrpc_main at ffffffffc1664bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffb5b284753f10] kthread at ffffffffb9b57041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffb5b284753f50] ret_from_fork at ffffffffbaa001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330