PID: 8108   TASK: ffff92549188cf80  CPU: 0   COMMAND: "ll_ost_io00_000"
 #0 [ffffa46cc3f57688] machine_kexec at ffffffff998850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffa46cc3f576e0] __crash_kexec at ffffffff99a3e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffa46cc3f577a0] crash_kexec at ffffffff99a3fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffa46cc3f577b8] oops_end at ffffffff99837cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffa46cc3f577d8] no_context.cold.27 at ffffffff998a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffa46cc3f57830] __bad_area_nosemaphore at ffffffff998a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffa46cc3f57878] bad_area_nosemaphore at ffffffff998a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffa46cc3f57880] do_user_addr_fault at ffffffff998a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffa46cc3f578d0] __do_page_fault at ffffffff998a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffa46cc3f578f0] do_page_fault at ffffffff998a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffa46cc3f57920] page_fault at ffffffff9a800f8e
    /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: ffffffffc08cee20  RSP: ffffa46cc3f579d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9254886fb1d0  RCX: 0000000000000001
    RDX: ffff9254bb4a9800  RSI: 00000000b0000202  RDI: ffff9254920150a0
    RBP: 0000000000000001   R8: 0000000000000001   R9: 0000000000000000
    R10: ffff9254b71ad480  R11: ffff9254b6af9bc8  R12: ffff9254afe44000
    R13: ffff9254b7180000  R14: ffff9254afe44000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffa46cc3f579d0] osd_bufs_put at ffffffffc1fc1d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffa46cc3f57a18] ofd_release_chunk_lnb at ffffffffc2474ca2 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffa46cc3f57a40] ofd_commitrw_write at ffffffffc2461708 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffa46cc3f57ae0] ofd_commitrw at ffffffffc2468ca9 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffa46cc3f57bb8] tgt_brw_write at ffffffffc17d451c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffa46cc3f57d78] tgt_handle_request0 at ffffffffc17cccc7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffa46cc3f57da8] tgt_request_handle at ffffffffc17ce965 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffa46cc3f57e28] ptlrpc_server_handle_request at ffffffffc16c69a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffa46cc3f57e90] ptlrpc_main at ffffffffc16c9bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffa46cc3f57f10] kthread at ffffffff99957041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffa46cc3f57f50] ret_from_fork at ffffffff9a8001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330