PID: 6696   TASK: ffff9d7202f34f80  CPU: 1   COMMAND: "ll_ost_io00_000"
 #0 [ffffb47e838db688] machine_kexec at ffffffff9d0850a3
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/machine_kexec_64.c: 417
 #1 [ffffb47e838db6e0] __crash_kexec at ffffffff9d23e5ba
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kexec_core.c: 955
 #2 [ffffb47e838db7a0] crash_kexec at ffffffff9d23fc05
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/./include/linux/compiler.h: 356
 #3 [ffffb47e838db7b8] oops_end at ffffffff9d037cb5
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/kernel/dumpstack.c: 339
 #4 [ffffb47e838db7d8] no_context.cold.27 at ffffffff9d0a1a56
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 796
 #5 [ffffb47e838db830] __bad_area_nosemaphore at ffffffff9d0a0356
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 870
 #6 [ffffb47e838db878] bad_area_nosemaphore at ffffffff9d0a06fa
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 877
 #7 [ffffb47e838db880] do_user_addr_fault at ffffffff9d0a10c0
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1306
 #8 [ffffb47e838db8d0] __do_page_fault at ffffffff9d0a15bb
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1497
 #9 [ffffb47e838db8f0] do_page_fault at ffffffff9d0a1677
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/mm/fault.c: 1547
#10 [ffffb47e838db920] page_fault at ffffffff9e000f8e
    /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: ffffffffc08ece20  RSP: ffffb47e838db9d0  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff9d7235d79c80  RCX: 0000000000000001
    RDX: ffff9d724163fc00  RSI: 00000000b0000202  RDI: ffff9d7210842a20
    RBP: 0000000000000001   R8: 0000000000000001   R9: 0000000000000000
    R10: ffff9d72067380c0  R11: ffff9d7207f84f00  R12: ffff9d71022d4000
    R13: ffff9d7241060000  R14: ffff9d71022d4000  R15: 0000000000000000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffffb47e838db9d0] osd_bufs_put at ffffffffc1fdfd97 [osd_zfs]
    /home/green/git/lustre-release/lustre/osd-zfs/osd_io.c: 488
#12 [ffffb47e838dba18] ofd_release_chunk_lnb at ffffffffc2492ca2 [ofd]
    /home/green/git/lustre-release/lustre/include/dt_object.h: 2436
#13 [ffffb47e838dba40] ofd_commitrw_write at ffffffffc247f708 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1508
#14 [ffffb47e838dbae0] ofd_commitrw at ffffffffc2486ca9 [ofd]
    /home/green/git/lustre-release/lustre/ofd/ofd_io.c: 1633
#15 [ffffb47e838dbbb8] tgt_brw_write at ffffffffc17f251c [ptlrpc]
    /home/green/git/lustre-release/lustre/include/obd_class.h: 1186
#16 [ffffb47e838dbd78] tgt_handle_request0 at ffffffffc17eacc7 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lu_target.h: 646
#17 [ffffb47e838dbda8] tgt_request_handle at ffffffffc17ec965 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/../target/tgt_handler.c: 901
#18 [ffffb47e838dbe28] ptlrpc_server_handle_request at ffffffffc16e49a3 [ptlrpc]
    /home/green/git/lustre-release/lustre/include/lustre_net.h: 2383
#19 [ffffb47e838dbe90] ptlrpc_main at ffffffffc16e7bc8 [ptlrpc]
    /home/green/git/lustre-release/lustre/ptlrpc/service.c: 3145
#20 [ffffb47e838dbf10] kthread at ffffffff9d157041
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/kernel/kthread.c: 364
#21 [ffffb47e838dbf50] ret_from_fork at ffffffff9e0001ff
    /home/green/bk/linux-4.18.0-553.58.1.el8_10-debug/arch/x86/entry/entry_64.S: 330