PID: 6682   TASK: ffffa09381300000  CPU: 1   COMMAND: "ll_ost_io00_002"
 #0 [ffffb4a103047678] machine_kexec at ffffffff952850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffb4a1030476d0] __crash_kexec at ffffffff9543e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffb4a103047790] crash_kexec at ffffffff9543fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffb4a1030477a8] oops_end at ffffffff95237cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffb4a1030477c8] no_context.cold.27 at ffffffff952a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffb4a103047820] __bad_area_nosemaphore at ffffffff952a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffb4a103047868] bad_area_nosemaphore at ffffffff952a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffb4a103047870] do_user_addr_fault at ffffffff952a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffb4a1030478c0] __do_page_fault at ffffffff952a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffb4a1030478e0] do_page_fault at ffffffff952a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffb4a103047910] page_fault at ffffffff96200f8e
    /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: ffffffffc07b0e20  RSP: ffffb4a1030479c0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffffa092451e0558  RCX: 0000000000000002
    RDX: ffffa09358b85000  RSI: 00000000b0000202  RDI: ffffa092480c2c20
    RBP: 0000000000000002   R8: 0000000000000000   R9: 0000000000000000
    R10: ffffa09376273300  R11: ffffa092455eca58  R12: ffffa093765a8000
    R13: ffffa0937e800000  R14: ffffa093765a8000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffb4a1030479c0] osd_bufs_put at ffffffffc1ea1d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffb4a103047a08] ofd_release_chunk_lnb at ffffffffc2355882 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffb4a103047a30] ofd_commitrw_write at ffffffffc2341376 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1761
#14 [ffffb4a103047ad0] ofd_commitrw at ffffffffc234907c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1885
#15 [ffffb4a103047ba8] tgt_brw_write at ffffffffc16b4588 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1189
#16 [ffffb4a103047d78] tgt_handle_request0 at ffffffffc16acbf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 644
#17 [ffffb4a103047da8] tgt_request_handle at ffffffffc16ae895 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffb4a103047e28] ptlrpc_server_handle_request at ffffffffc15a69a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffb4a103047e90] ptlrpc_main at ffffffffc15a9bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffb4a103047f10] kthread at ffffffff95357041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffb4a103047f50] ret_from_fork at ffffffff962001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330