PID: 8062   TASK: ffff9cb1810b4f80  CPU: 1   COMMAND: "ll_ost_io00_002"
 #0 [ffffb770c2e03688] machine_kexec at ffffffffb3e850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffb770c2e036e0] __crash_kexec at ffffffffb403e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffb770c2e037a0] crash_kexec at ffffffffb403fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffb770c2e037b8] oops_end at ffffffffb3e37cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffb770c2e037d8] no_context.cold.27 at ffffffffb3ea1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffb770c2e03830] __bad_area_nosemaphore at ffffffffb3ea0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffb770c2e03878] bad_area_nosemaphore at ffffffffb3ea06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffb770c2e03880] do_user_addr_fault at ffffffffb3ea10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffb770c2e038d0] __do_page_fault at ffffffffb3ea15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffb770c2e038f0] do_page_fault at ffffffffb3ea1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffb770c2e03920] page_fault at ffffffffb4e00f8e
    /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: ffffffffc082fe20  RSP: ffffb770c2e039d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9cb189465ab8  RCX: 0000000000000010
    RDX: ffff9cb285ab3200  RSI: 00000000b0000202  RDI: ffff9cb1896d6a80
    RBP: 0000000000000010   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff9cb2917b4540  R11: ffff9cb181512518  R12: ffff9cb2c1680000
    R13: ffff9cb2bdfe0000  R14: ffff9cb2c1680000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffb770c2e039d0] osd_bufs_put at ffffffffc1f29d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffb770c2e03a18] ofd_release_chunk_lnb at ffffffffc23e1652 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffb770c2e03a40] ofd_commitrw_write at ffffffffc23ce018 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffb770c2e03ae0] ofd_commitrw at ffffffffc23d557c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffb770c2e03bb8] tgt_brw_write at ffffffffc177056c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffb770c2e03d78] tgt_handle_request0 at ffffffffc1768d17 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffb770c2e03da8] tgt_request_handle at ffffffffc176a9b5 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffb770c2e03e28] ptlrpc_server_handle_request at ffffffffc16629e3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffb770c2e03e90] ptlrpc_main at ffffffffc1665c08 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffb770c2e03f10] kthread at ffffffffb3f57041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffb770c2e03f50] ret_from_fork at ffffffffb4e001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330