PID: 8089   TASK: ffff93cbb6ef27c0  CPU: 2   COMMAND: "ll_ost_io00_000"
 #0 [ffffbc78841d7688] machine_kexec at ffffffffa6e850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffbc78841d76e0] __crash_kexec at ffffffffa703e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffbc78841d77a0] crash_kexec at ffffffffa703fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffbc78841d77b8] oops_end at ffffffffa6e37cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffbc78841d77d8] no_context.cold.27 at ffffffffa6ea1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffbc78841d7830] __bad_area_nosemaphore at ffffffffa6ea0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffbc78841d7878] bad_area_nosemaphore at ffffffffa6ea06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffbc78841d7880] do_user_addr_fault at ffffffffa6ea10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffbc78841d78d0] __do_page_fault at ffffffffa6ea15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffbc78841d78f0] do_page_fault at ffffffffa6ea1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffbc78841d7920] page_fault at ffffffffa7e00f8e
    /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: ffffffffc08fee20  RSP: ffffbc78841d79d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff93cb85377728  RCX: 0000000000000001
    RDX: ffff93cbba17ac00  RSI: 00000000b0000202  RDI: ffff93cb869edce0
    RBP: 0000000000000001   R8: 0000000000000001   R9: 0000000000000000
    R10: ffff93cb903046c0  R11: ffff93cbacb9dcf8  R12: ffff93ca87220000
    R13: ffff93cbbc800000  R14: ffff93ca87220000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffbc78841d79d0] osd_bufs_put at ffffffffc1ff4d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffbc78841d7a18] ofd_release_chunk_lnb at ffffffffc24a7ca2 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffbc78841d7a40] ofd_commitrw_write at ffffffffc2494708 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffbc78841d7ae0] ofd_commitrw at ffffffffc249bca9 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffbc78841d7bb8] tgt_brw_write at ffffffffc183c51c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffbc78841d7d78] tgt_handle_request0 at ffffffffc1834cc7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffbc78841d7da8] tgt_request_handle at ffffffffc1836965 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffbc78841d7e28] ptlrpc_server_handle_request at ffffffffc172e9a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffbc78841d7e90] ptlrpc_main at ffffffffc1731bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffbc78841d7f10] kthread at ffffffffa6f57041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffbc78841d7f50] ret_from_fork at ffffffffa7e001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330