PID: 6729   TASK: ffff9f5fb8ca0000  CPU: 1   COMMAND: "ll_ost_io00_000"
 #0 [ffffc1e282b87678] machine_kexec at ffffffff93c850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffc1e282b876d0] __crash_kexec at ffffffff93e3e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffc1e282b87790] crash_kexec at ffffffff93e3fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffc1e282b877a8] oops_end at ffffffff93c37cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffc1e282b877c8] no_context.cold.27 at ffffffff93ca1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffc1e282b87820] __bad_area_nosemaphore at ffffffff93ca0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffc1e282b87868] bad_area_nosemaphore at ffffffff93ca06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffc1e282b87870] do_user_addr_fault at ffffffff93ca10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffc1e282b878c0] __do_page_fault at ffffffff93ca15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffc1e282b878e0] do_page_fault at ffffffff93ca1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffc1e282b87910] page_fault at ffffffff94c00f8e
    /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: ffffffffc094be20  RSP: ffffc1e282b879c0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9f5fa54501c8  RCX: 0000000000000007
    RDX: ffff9f5f86ae9600  RSI: 00000000b0000202  RDI: ffff9f5f860ffa40
    RBP: 0000000000000007   R8: ffff9f5e83c0e468   R9: 0000000000000000
    R10: 00000000c33a88fe  R11: ffff9f5e83c0f000  R12: ffff9f5e8a936000
    R13: ffff9f5f9fb00000  R14: ffff9f5e8a936000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffc1e282b879c0] osd_bufs_put at ffffffffc203fd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffc1e282b87a08] ofd_release_chunk_lnb at ffffffffc24f3882 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffc1e282b87a30] ofd_commitrw_write at ffffffffc24df376 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1761
#14 [ffffc1e282b87ad0] ofd_commitrw at ffffffffc24e707c [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1885
#15 [ffffc1e282b87ba8] tgt_brw_write at ffffffffc1887588 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1189
#16 [ffffc1e282b87d78] tgt_handle_request0 at ffffffffc187fbf7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 644
#17 [ffffc1e282b87da8] tgt_request_handle at ffffffffc1881895 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffc1e282b87e28] ptlrpc_server_handle_request at ffffffffc17799a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffc1e282b87e90] ptlrpc_main at ffffffffc177cbc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffc1e282b87f10] kthread at ffffffff93d57041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffc1e282b87f50] ret_from_fork at ffffffff94c001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330