PID: 6688   TASK: ffff9df706a10000  CPU: 0   COMMAND: "ll_ost_io00_000"
 #0 [ffffac9ac2ba3688] machine_kexec at ffffffffb14850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffac9ac2ba36e0] __crash_kexec at ffffffffb163e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffac9ac2ba37a0] crash_kexec at ffffffffb163fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffac9ac2ba37b8] oops_end at ffffffffb1437cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffac9ac2ba37d8] no_context.cold.27 at ffffffffb14a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffac9ac2ba3830] __bad_area_nosemaphore at ffffffffb14a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffac9ac2ba3878] bad_area_nosemaphore at ffffffffb14a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffac9ac2ba3880] do_user_addr_fault at ffffffffb14a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffac9ac2ba38d0] __do_page_fault at ffffffffb14a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffac9ac2ba38f0] do_page_fault at ffffffffb14a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffac9ac2ba3920] page_fault at ffffffffb2400f8e
    /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: ffffffffc05bee20  RSP: ffffac9ac2ba39d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9df71f190000  RCX: 0000000000000001
    RDX: ffff9df7063b7c00  RSI: 00000000b0000202  RDI: ffff9df709103ac0
    RBP: 0000000000000001   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff9df7053c2c00  R11: ffff9df73fef29c0  R12: ffff9df603d38000
    R13: ffff9df71f1c0000  R14: ffff9df603d38000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffac9ac2ba39d0] osd_bufs_put at ffffffffc1cb1d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffac9ac2ba3a18] ofd_release_chunk_lnb at ffffffffc2164ca2 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffac9ac2ba3a40] ofd_commitrw_write at ffffffffc2151708 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffac9ac2ba3ae0] ofd_commitrw at ffffffffc2158ca9 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffac9ac2ba3bb8] tgt_brw_write at ffffffffc14c451c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffac9ac2ba3d78] tgt_handle_request0 at ffffffffc14bccc7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffac9ac2ba3da8] tgt_request_handle at ffffffffc14be965 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffac9ac2ba3e28] ptlrpc_server_handle_request at ffffffffc13b69a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffac9ac2ba3e90] ptlrpc_main at ffffffffc13b9bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffac9ac2ba3f10] kthread at ffffffffb1557041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffac9ac2ba3f50] ret_from_fork at ffffffffb24001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330