PID: 8101   TASK: ffff9543d109a7c0  CPU: 0   COMMAND: "ll_ost_io00_000"
 #0 [ffffa7c904daf688] machine_kexec at ffffffff8fc850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffa7c904daf6e0] __crash_kexec at ffffffff8fe3e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffa7c904daf7a0] crash_kexec at ffffffff8fe3fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffa7c904daf7b8] oops_end at ffffffff8fc37cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffa7c904daf7d8] no_context.cold.27 at ffffffff8fca1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffa7c904daf830] __bad_area_nosemaphore at ffffffff8fca0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffa7c904daf878] bad_area_nosemaphore at ffffffff8fca06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffa7c904daf880] do_user_addr_fault at ffffffff8fca10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffa7c904daf8d0] __do_page_fault at ffffffff8fca15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffa7c904daf8f0] do_page_fault at ffffffff8fca1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffa7c904daf920] page_fault at ffffffff90c00f8e
    /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: ffffffffc05bfe20  RSP: ffffa7c904daf9d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9543c6451ab8  RCX: 0000000000000006
    RDX: ffff9543fe366200  RSI: 00000000b0000202  RDI: ffff9543fdb0c0a0
    RBP: 0000000000000006   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff9543ee9fdf00  R11: ffff9543f61b0928  R12: ffff9543efe63c00
    R13: ffff9543c8260000  R14: ffff9543efe63c00  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffa7c904daf9d0] osd_bufs_put at ffffffffc1cb8d97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffa7c904dafa18] ofd_release_chunk_lnb at ffffffffc216e652 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffa7c904dafa40] ofd_commitrw_write at ffffffffc215b018 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffa7c904dafae0] ofd_commitrw at ffffffffc216257c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffa7c904dafbb8] tgt_brw_write at ffffffffc150054c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffa7c904dafd78] tgt_handle_request0 at ffffffffc14f8cf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffa7c904dafda8] tgt_request_handle at ffffffffc14fa995 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffa7c904dafe28] ptlrpc_server_handle_request at ffffffffc13f29d3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffa7c904dafe90] ptlrpc_main at ffffffffc13f5bf8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffa7c904daff10] kthread at ffffffff8fd57041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffa7c904daff50] ret_from_fork at ffffffff90c001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330