PID: 6696   TASK: ffff9c1fb4f00000  CPU: 2   COMMAND: "ll_ost_io00_000"
 #0 [ffffb373437d3688] machine_kexec at ffffffff932850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffb373437d36e0] __crash_kexec at ffffffff9343e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffb373437d37a0] crash_kexec at ffffffff9343fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffb373437d37b8] oops_end at ffffffff93237cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffb373437d37d8] no_context.cold.27 at ffffffff932a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffb373437d3830] __bad_area_nosemaphore at ffffffff932a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffb373437d3878] bad_area_nosemaphore at ffffffff932a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffb373437d3880] do_user_addr_fault at ffffffff932a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffb373437d38d0] __do_page_fault at ffffffff932a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffb373437d38f0] do_page_fault at ffffffff932a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffb373437d3920] page_fault at ffffffff94200f8e
    /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: ffffffffc07b8e20  RSP: ffffb373437d39d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9c1f8a880720  RCX: 0000000000000006
    RDX: ffff9c1fa427d600  RSI: 00000000b0000202  RDI: ffff9c1f91126ae0
    RBP: 0000000000000006   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff9c1fbc780840  R11: 0000000000000000  R12: ffff9c1fb5181000
    R13: ffff9c1fbcb60000  R14: ffff9c1fb5181000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffb373437d39d0] osd_bufs_put at ffffffffc1eaed97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffb373437d3a18] ofd_release_chunk_lnb at ffffffffc2364652 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffb373437d3a40] ofd_commitrw_write at ffffffffc2351018 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffb373437d3ae0] ofd_commitrw at ffffffffc235857c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffb373437d3bb8] tgt_brw_write at ffffffffc16c154c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffb373437d3d78] tgt_handle_request0 at ffffffffc16b9cf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffb373437d3da8] tgt_request_handle at ffffffffc16bb995 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffb373437d3e28] ptlrpc_server_handle_request at ffffffffc15b39d3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffb373437d3e90] ptlrpc_main at ffffffffc15b6bf8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffb373437d3f10] kthread at ffffffff93357041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffb373437d3f50] ret_from_fork at ffffffff942001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330