PID: 100631  TASK: ffff924e82f48000  CPU: 1   COMMAND: "ll_ost_io00_012"
 #0 [ffffa92ec1acf688] machine_kexec at ffffffff830850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffa92ec1acf6e0] __crash_kexec at ffffffff8323e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffa92ec1acf7a0] crash_kexec at ffffffff8323fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffa92ec1acf7b8] oops_end at ffffffff83037cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffa92ec1acf7d8] no_context.cold.27 at ffffffff830a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffa92ec1acf830] __bad_area_nosemaphore at ffffffff830a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffa92ec1acf878] bad_area_nosemaphore at ffffffff830a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffa92ec1acf880] do_user_addr_fault at ffffffff830a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffa92ec1acf8d0] __do_page_fault at ffffffff830a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffa92ec1acf8f0] do_page_fault at ffffffff830a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffa92ec1acf920] page_fault at ffffffff84000f8e
    /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: ffffffffc06c7e20  RSP: ffffa92ec1acf9d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff924f9775e558  RCX: 0000000000000007
    RDX: ffff924f88112400  RSI: 00000000b0000202  RDI: ffff924ece9a0bc0
    RBP: 0000000000000007   R8: ffff924e827bc6e1   R9: 0000000000000000
    R10: 00000000c30dcc28  R11: ffff924e827bd000  R12: ffff924fb9a70000
    R13: ffff924fba960000  R14: ffff924fb9a70000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffa92ec1acf9d0] osd_bufs_put at ffffffffc1dbdd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffa92ec1acfa18] ofd_release_chunk_lnb at ffffffffc2273782 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffa92ec1acfa40] ofd_commitrw_write at ffffffffc2260018 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffa92ec1acfae0] ofd_commitrw at ffffffffc226757c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffa92ec1acfbb8] tgt_brw_write at ffffffffc15d054c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffa92ec1acfd78] tgt_handle_request0 at ffffffffc15c8cf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffa92ec1acfda8] tgt_request_handle at ffffffffc15ca995 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffa92ec1acfe28] ptlrpc_server_handle_request at ffffffffc14c29d3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffa92ec1acfe90] ptlrpc_main at ffffffffc14c5bf8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffa92ec1acff10] kthread at ffffffff83157041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffa92ec1acff50] ret_from_fork at ffffffff840001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330