PID: 8099   TASK: ffff960e58234f80  CPU: 3   COMMAND: "ll_ost_io00_000"
 #0 [ffffaf1843fa7688] machine_kexec at ffffffff968850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffaf1843fa76e0] __crash_kexec at ffffffff96a3e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffaf1843fa77a0] crash_kexec at ffffffff96a3fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffaf1843fa77b8] oops_end at ffffffff96837cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffaf1843fa77d8] no_context.cold.27 at ffffffff968a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffaf1843fa7830] __bad_area_nosemaphore at ffffffff968a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffaf1843fa7878] bad_area_nosemaphore at ffffffff968a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffaf1843fa7880] do_user_addr_fault at ffffffff968a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffaf1843fa78d0] __do_page_fault at ffffffff968a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffaf1843fa78f0] do_page_fault at ffffffff968a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffaf1843fa7920] page_fault at ffffffff97800f8e
    /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: ffffffffc06ace20  RSP: ffffaf1843fa79d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff960e7d973728  RCX: 0000000000000001
    RDX: ffff960e747bfc00  RSI: 00000000b0000202  RDI: ffff960e43101560
    RBP: 0000000000000001   R8: 0000000000000000   R9: 0000000000000000
    R10: ffff960e43101d40  R11: 00000000000001b1  R12: ffff960d4556c080
    R13: ffff960e7d3a0000  R14: ffff960d4556c080  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffaf1843fa79d0] osd_bufs_put at ffffffffc1d9fd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffaf1843fa7a18] ofd_release_chunk_lnb at ffffffffc2252ca2 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffaf1843fa7a40] ofd_commitrw_write at ffffffffc223f708 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffaf1843fa7ae0] ofd_commitrw at ffffffffc2246ca9 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffaf1843fa7bb8] tgt_brw_write at ffffffffc15b251c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffaf1843fa7d78] tgt_handle_request0 at ffffffffc15aacc7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffaf1843fa7da8] tgt_request_handle at ffffffffc15ac965 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffaf1843fa7e28] ptlrpc_server_handle_request at ffffffffc14a49a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffaf1843fa7e90] ptlrpc_main at ffffffffc14a7bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffaf1843fa7f10] kthread at ffffffff96957041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffaf1843fa7f50] ret_from_fork at ffffffff978001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330