From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Wang Nan <wangnan0@huawei.com>
Cc: ast@plumgrid.com, brendan.d.gregg@gmail.com,
a.p.zijlstra@chello.nl, daniel@iogearbox.net, dsahern@gmail.com,
hekuang@huawei.com, jolsa@kernel.org, lizefan@huawei.com,
masami.hiramatsu.pt@hitachi.com, namhyung@kernel.org,
paulus@samba.org, linux-kernel@vger.kernel.org, pi3orama@163.com,
xiakaixu@huawei.com
Subject: Re: [PATCH 05/31] perf record: Load eBPF object into kernel
Date: Fri, 23 Oct 2015 21:27:08 -0300 [thread overview]
Message-ID: <20151024002708.GJ27006@kernel.org> (raw)
In-Reply-To: <20151023165840.GI27006@kernel.org>
Em Fri, Oct 23, 2015 at 01:58:40PM -0300, Arnaldo Carvalho de Melo escreveu:
> I'll try updating it to torvalds/master...
Ok, still the same problem, this time with -vv, what does the following message
mean?
libbpf: don't need create maps for /tmp/foo.o
Full output:
[acme@felicio linux]$ sudo ~/bin/perf record -vv --event /tmp/foo.o sleep 1
libbpf: loading /tmp/foo.o
libbpf: section .strtab, size 66, link 0, flags 0, type=3
libbpf: section .text, size 0, link 0, flags 6, type=1
libbpf: section .data, size 0, link 0, flags 3, type=1
libbpf: section .bss, size 0, link 0, flags 3, type=8
libbpf: section fork=_do_fork, size 16, link 0, flags 6, type=1
libbpf: found program fork=_do_fork
libbpf: section license, size 4, link 0, flags 3, type=1
libbpf: license of /tmp/foo.o is GPL
libbpf: section version, size 4, link 0, flags 3, type=1
libbpf: kernel version of /tmp/foo.o is 40100
libbpf: section .symtab, size 96, link 1, flags 0, type=2
bpf: config program 'fork=_do_fork'
symbol:_do_fork file:(null) line:0 offset:0 return:0 lazy:(null)
bpf: config 'fork=_do_fork' is ok
Blacklist: 0xffffffff81016f10-0xffffffff81016f50, do_device_not_available
Blacklist: 0xffffffff810171f0-0xffffffff810173e0, do_debug
Blacklist: 0xffffffff81016eb0-0xffffffff81016f10, fixup_bad_iret
Blacklist: 0xffffffff81016bd0-0xffffffff81016c00, sync_regs
Blacklist: 0xffffffff81016f50-0xffffffff810170a0, do_int3
Blacklist: 0xffffffff810170a0-0xffffffff810171f0, do_general_protection
Blacklist: 0xffffffff81016c00-0xffffffff81016d40, do_trap
Blacklist: 0xffffffff81019a10-0xffffffff81019af0, __die
Blacklist: 0xffffffff810198e0-0xffffffff810199b0, oops_end
Blacklist: 0xffffffff81019830-0xffffffff810198e0, oops_begin
Blacklist: 0xffffffff8101a770-0xffffffff8101a8c0, do_nmi
Blacklist: 0xffffffff8101a680-0xffffffff8101a770, default_do_nmi
Blacklist: 0xffffffff8101a560-0xffffffff8101a5f0, unknown_nmi_error
Blacklist: 0xffffffff8101a5f0-0xffffffff8101a680, io_check_error
Blacklist: 0xffffffff8101a4e0-0xffffffff8101a560, pci_serr_error
Blacklist: 0xffffffff8101a0d0-0xffffffff8101a1f0, nmi_handle
Blacklist: 0xffffffff81027a90-0xffffffff81027b10, debug_stack_reset
Blacklist: 0xffffffff81027a40-0xffffffff81027a90, debug_stack_set_zero
Blacklist: 0xffffffff81027a00-0xffffffff81027a40, is_debug_stack
Blacklist: 0xffffffff8102b400-0xffffffff8102b440, perf_event_nmi_handler
Blacklist: 0xffffffff8104b020-0xffffffff8104b060, perf_ibs_nmi_handler
Blacklist: 0xffffffff810526a0-0xffffffff810526c0, arch_trigger_all_cpu_backtrace_handler
Blacklist: 0xffffffff8105b090-0xffffffff8105b180, longjmp_break_handler
Blacklist: 0xffffffff8105ae21-0xffffffff8105ae30, jprobe_return_end
Blacklist: 0xffffffff8105ae00-0xffffffff8105ae21, jprobe_return
Blacklist: 0xffffffff8105ae70-0xffffffff8105af10, setjmp_pre_handler
Blacklist: 0xffffffff8105b040-0xffffffff8105b090, kprobe_exceptions_notify
Blacklist: 0xffffffff8105af10-0xffffffff8105b040, kprobe_fault_handler
Blacklist: 0xffffffff8105b8f0-0xffffffff8105b9c0, kprobe_debug_handler
Blacklist: 0xffffffff8105b720-0xffffffff8105b8f0, resume_execution
Blacklist: 0xffffffff8105b180-0xffffffff8105b380, trampoline_handler
Blacklist: 0xffffffff8105ada9-0xffffffff8105ae00, kretprobe_trampoline
Blacklist: 0xffffffff8105ada0-0xffffffff8105ada9, kretprobe_trampoline_holder
Blacklist: 0xffffffff8105b5c0-0xffffffff8105b720, kprobe_int3_handler
Blacklist: 0xffffffff8105b520-0xffffffff8105b5c0, reenter_kprobe
Blacklist: 0xffffffff8105b380-0xffffffff8105b520, setup_singlestep
Blacklist: 0xffffffff8105ad80-0xffffffff8105ada0, arch_prepare_kretprobe
Blacklist: 0xffffffff8105ae30-0xffffffff8105ae70, skip_prefixes
Blacklist: 0xffffffff8105ad60-0xffffffff8105ad80, synthesize_relcall
Blacklist: 0xffffffff8105ad40-0xffffffff8105ad60, synthesize_reljump
Blacklist: 0xffffffff8105c0c0-0xffffffff8105c110, setup_detour_execution
Blacklist: 0xffffffff8105c020-0xffffffff8105c0c0, optimized_callback
Blacklist: 0xffffffff8105c860-0xffffffff8105c970, kprobe_ftrace_handler
Blacklist: 0xffffffff8105c970-0xffffffff8105c9c0, skip_singlestep
Blacklist: 0xffffffff8105fec0-0xffffffff8105ff70, do_async_page_fault
Blacklist: 0xffffffff8105f820-0xffffffff8105f850, kvm_read_and_reset_pf_reason
Blacklist: 0xffffffff810607a0-0xffffffff810607b0, native_load_idt
Blacklist: 0xffffffff81060a30-0xffffffff81060a80, native_set_debugreg
Blacklist: 0xffffffff81060a80-0xffffffff81060ad0, native_get_debugreg
Blacklist: 0xffffffff81064f00-0xffffffff81064ff0, trace_do_page_fault
Blacklist: 0xffffffff81064e80-0xffffffff81064f00, do_page_fault
Blacklist: 0xffffffff81064a90-0xffffffff81064e80, __do_page_fault
Blacklist: 0xffffffff81064900-0xffffffff81064a90, spurious_fault
Blacklist: 0xffffffff81063e50-0xffffffff810640d0, vmalloc_fault
Blacklist: 0xffffffff810bb8d0-0xffffffff810bb930, notify_die
Blacklist: 0xffffffff810bb7f0-0xffffffff810bb810, atomic_notifier_call_chain
Blacklist: 0xffffffff810bb7d0-0xffffffff810bb7f0, __atomic_notifier_call_chain
Blacklist: 0xffffffff810bb760-0xffffffff810bb7d0, notifier_call_chain
Blacklist: 0xffffffff8113fb70-0xffffffff8113fbb0, dump_kprobe
Blacklist: 0xffffffff8113fdf0-0xffffffff8113ffa0, pre_handler_kretprobe
Blacklist: 0xffffffff81141290-0xffffffff81141360, cleanup_rp_inst
Blacklist: 0xffffffff811408a0-0xffffffff811409c0, kprobe_flush_task
Blacklist: 0xffffffff8113fce0-0xffffffff8113fd00, kretprobe_table_unlock
Blacklist: 0xffffffff8113fcb0-0xffffffff8113fce0, kretprobe_hash_unlock
Blacklist: 0xffffffff8113fc80-0xffffffff8113fcb0, kretprobe_table_lock
Blacklist: 0xffffffff8113fc40-0xffffffff8113fc80, kretprobe_hash_lock
Blacklist: 0xffffffff81140800-0xffffffff811408a0, recycle_rp_inst
Blacklist: 0xffffffff81140300-0xffffffff81140370, kprobes_inc_nmissed_count
Blacklist: 0xffffffff8113f840-0xffffffff8113f880, aggr_break_handler
Blacklist: 0xffffffff8113f800-0xffffffff8113f840, aggr_fault_handler
Blacklist: 0xffffffff8113fa30-0xffffffff8113fad0, aggr_post_handler
Blacklist: 0xffffffff8113f990-0xffffffff8113fa30, aggr_pre_handler
Blacklist: 0xffffffff8113f900-0xffffffff8113f990, opt_pre_handler
Blacklist: 0xffffffff8113f7b0-0xffffffff8113f800, get_kprobe
Blacklist: 0xffffffff81173100-0xffffffff811731e0, perf_trace_buf_prepare
Blacklist: 0xffffffff81179380-0xffffffff811793e0, kretprobe_dispatcher
Blacklist: 0xffffffff8117a650-0xffffffff8117a6a0, kprobe_dispatcher
Blacklist: 0xffffffff81178280-0xffffffff811784d0, kretprobe_perf_func
Blacklist: 0xffffffff81178030-0xffffffff81178280, kprobe_perf_func
Blacklist: 0xffffffff81178ff0-0xffffffff81179380, kretprobe_trace_func
Blacklist: 0xffffffff8117a2e0-0xffffffff8117a650, kprobe_trace_func
Blacklist: 0xffffffff81178e90-0xffffffff81178eb0, fetch_symbol_string_size
Blacklist: 0xffffffff81178010-0xffffffff81178030, fetch_symbol_string
Blacklist: 0xffffffff8117a210-0xffffffff8117a230, fetch_symbol_u64
Blacklist: 0xffffffff8117a2c0-0xffffffff8117a2e0, fetch_symbol_u32
Blacklist: 0xffffffff8117a160-0xffffffff8117a180, fetch_symbol_u16
Blacklist: 0xffffffff8117a0b0-0xffffffff8117a0d0, fetch_symbol_u8
Blacklist: 0xffffffff81178de0-0xffffffff81178e90, fetch_memory_string_size
Blacklist: 0xffffffff81177fc0-0xffffffff81178010, fetch_memory_string
Blacklist: 0xffffffff8117a180-0xffffffff8117a210, fetch_memory_u64
Blacklist: 0xffffffff8117a230-0xffffffff8117a2c0, fetch_memory_u32
Blacklist: 0xffffffff8117a0d0-0xffffffff8117a160, fetch_memory_u16
Blacklist: 0xffffffff8117a020-0xffffffff8117a0b0, fetch_memory_u8
Blacklist: 0xffffffff81177f90-0xffffffff81177fc0, fetch_stack_u64
Blacklist: 0xffffffff81177f60-0xffffffff81177f90, fetch_stack_u32
Blacklist: 0xffffffff81177f30-0xffffffff81177f60, fetch_stack_u16
Blacklist: 0xffffffff81177f00-0xffffffff81177f30, fetch_stack_u8
Blacklist: 0xffffffff8117e210-0xffffffff8117e220, fetch_user_stack_address
Blacklist: 0xffffffff8117e200-0xffffffff8117e210, fetch_kernel_stack_address
Blacklist: 0xffffffff8117e190-0xffffffff8117e200, fetch_bitfield_u64
Blacklist: 0xffffffff8117e120-0xffffffff8117e190, fetch_bitfield_u32
Blacklist: 0xffffffff8117e0b0-0xffffffff8117e120, fetch_bitfield_u16
Blacklist: 0xffffffff8117e040-0xffffffff8117e0b0, fetch_bitfield_u8
Blacklist: 0xffffffff8117e590-0xffffffff8117e630, free_deref_fetch_param
Blacklist: 0xffffffff8117e500-0xffffffff8117e590, update_deref_fetch_param
Blacklist: 0xffffffff8117dfc0-0xffffffff8117e040, fetch_deref_string_size
Blacklist: 0xffffffff8117df40-0xffffffff8117dfc0, fetch_deref_string
Blacklist: 0xffffffff8117dec0-0xffffffff8117df40, fetch_deref_u64
Blacklist: 0xffffffff8117de40-0xffffffff8117dec0, fetch_deref_u32
Blacklist: 0xffffffff8117ddc0-0xffffffff8117de40, fetch_deref_u16
Blacklist: 0xffffffff8117dd50-0xffffffff8117ddc0, fetch_deref_u8
Blacklist: 0xffffffff8117dd40-0xffffffff8117dd50, fetch_retval_u64
Blacklist: 0xffffffff8117dd30-0xffffffff8117dd40, fetch_retval_u32
Blacklist: 0xffffffff8117dd20-0xffffffff8117dd30, fetch_retval_u16
Blacklist: 0xffffffff8117dd10-0xffffffff8117dd20, fetch_retval_u8
Blacklist: 0xffffffff8117e4e0-0xffffffff8117e500, fetch_reg_u64
Blacklist: 0xffffffff8117e4c0-0xffffffff8117e4e0, fetch_reg_u32
Blacklist: 0xffffffff8117e4a0-0xffffffff8117e4c0, fetch_reg_u16
Blacklist: 0xffffffff8117e480-0xffffffff8117e4a0, fetch_reg_u8
Blacklist: 0xffffffff8117e420-0xffffffff8117e480, print_type_string
Blacklist: 0xffffffff8117e3e0-0xffffffff8117e420, print_type_s64
Blacklist: 0xffffffff8117e3a0-0xffffffff8117e3e0, print_type_s32
Blacklist: 0xffffffff8117e360-0xffffffff8117e3a0, print_type_s16
Blacklist: 0xffffffff8117e320-0xffffffff8117e360, print_type_s8
Blacklist: 0xffffffff8117e2e0-0xffffffff8117e320, print_type_u64
Blacklist: 0xffffffff8117e2a0-0xffffffff8117e2e0, print_type_u32
Blacklist: 0xffffffff8117e260-0xffffffff8117e2a0, print_type_u16
Blacklist: 0xffffffff8117e220-0xffffffff8117e260, print_type_u8
Blacklist: 0xffffffff8119a9a0-0xffffffff8119a9c0, context_tracking_user_exit
Blacklist: 0xffffffff8119a8d0-0xffffffff8119a9a0, context_tracking_exit
Blacklist: 0xffffffff8119aad0-0xffffffff8119aaf0, context_tracking_user_enter
Blacklist: 0xffffffff8119a9c0-0xffffffff8119aad0, context_tracking_enter
Blacklist: 0xffffffff8139f400-0xffffffff8139f470, nmi_cpu_backtrace
Looking at the vmlinux_path (7 entries long)
Using /lib/modules/4.3.0-rc6+/build/vmlinux for symbols
Open Debuginfo file: /lib/modules/4.3.0-rc6+/build/vmlinux
Try to find probe point from debuginfo.
Matched function: _do_fork
Probe point found: _do_fork+0
Found 1 probe_trace_events.
Opening /sys/kernel/debug/tracing//kprobe_events write=1
Writing event: p:perf_bpf_probe/fork _text+638512
libbpf: don't need create maps for /tmp/foo.o
libbpf: load bpf program failed: Invalid argument
libbpf: -- BEGIN DUMP LOG ---
libbpf:
libbpf: -- END LOG --
libbpf: failed to load program 'fork=_do_fork'
libbpf: failed to load object '/tmp/foo.o'
bpf: load objects failed
event syntax error: '/tmp/foo.o'
\___ Invalid argument: Are you root and runing a CONFIG_BPF_SYSCALL kernel?
(add -v to see detail)
Run 'perf list' for a list of valid events
Usage: perf record [<options>] [<command>]
or: perf record [<options>] -- <command> [<options>]
-e, --event <event> event selector. use 'perf list' to list available events
Opening /sys/kernel/debug/tracing//kprobe_events write=1
Opening /sys/kernel/debug/tracing//uprobe_events write=1
Parsing probe_events: p:perf_bpf_probe/fork _text+638512
Group:perf_bpf_probe Event:fork probe:p
Writing event: -:perf_bpf_probe/fork
[acme@felicio linux]$ uname -a
Linux felicio.ghostprotocols.net 4.3.0-rc6+ #1 SMP Fri Oct 23 16:40:25 BRT 2015 x86_64 x86_64 x86_64 GNU/Linux
[acme@felicio linux]$
next prev parent reply other threads:[~2015-10-24 0:27 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-14 12:41 [GIT PULL 00/31] perf tools: filtering events using eBPF programs Wang Nan
2015-10-14 12:41 ` [PATCH 01/31] perf tools: Make perf depend on libbpf Wang Nan
2015-10-29 12:21 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 02/31] perf ebpf: Add the libbpf glue Wang Nan
2015-10-29 12:21 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 03/31] perf tools: Enable passing bpf object file to --event Wang Nan
2015-10-20 15:12 ` Arnaldo Carvalho de Melo
2015-10-20 15:15 ` Arnaldo Carvalho de Melo
2015-10-20 15:42 ` Arnaldo Carvalho de Melo
2015-10-21 2:01 ` Wangnan (F)
2015-10-21 1:55 ` Wangnan (F)
2015-10-29 12:22 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 04/31] perf record, bpf: Create probe points for BPF programs Wang Nan
2015-10-20 19:12 ` Arnaldo Carvalho de Melo
2015-10-20 19:16 ` David Ahern
2015-10-20 19:21 ` Arnaldo Carvalho de Melo
2015-10-20 20:34 ` Arnaldo Carvalho de Melo
2015-10-21 2:27 ` Wangnan (F)
2015-10-21 3:31 ` Wangnan (F)
2015-10-21 13:28 ` Arnaldo Carvalho de Melo
2015-10-22 16:13 ` Arnaldo Carvalho de Melo
2015-10-29 12:22 ` [tip:perf/core] perf tools: " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 05/31] perf record: Load eBPF object into kernel Wang Nan
2015-10-23 16:58 ` Arnaldo Carvalho de Melo
2015-10-24 0:27 ` Arnaldo Carvalho de Melo [this message]
2015-10-26 7:18 ` Wangnan (F)
2015-10-24 1:18 ` pi3orama
2015-10-29 12:22 ` [tip:perf/core] perf tools: " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 06/31] perf tools: Collect perf_evsel in BPF object files Wang Nan
2015-10-29 12:23 ` [tip:perf/core] perf bpf: " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 07/31] perf tools: Attach eBPF program to perf event Wang Nan
2015-10-30 9:13 ` [tip:perf/core] perf bpf: Attach eBPF filter " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 08/31] perf record: Add clang options for compiling BPF scripts Wang Nan
2015-10-30 9:14 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 09/31] perf tools: Compile scriptlets to BPF objects when passing '.c' to --event Wang Nan
2015-10-14 15:45 ` Namhyung Kim
2015-10-15 2:10 ` Wangnan (F)
2015-10-29 16:25 ` Arnaldo Carvalho de Melo
2015-10-29 16:30 ` Arnaldo Carvalho de Melo
2015-10-29 22:52 ` Arnaldo Carvalho de Melo
2015-10-30 9:14 ` [tip:perf/core] " tip-bot for Wang Nan
2015-10-14 12:41 ` [PATCH 10/31] perf test: Enforce LLVM test for BPF test Wang Nan
2015-10-14 15:48 ` Namhyung Kim
2015-10-15 11:58 ` Wangnan (F)
2015-11-03 18:24 ` Arnaldo Carvalho de Melo
2015-11-04 1:41 ` Wangnan (F)
2015-10-29 22:37 ` Arnaldo Carvalho de Melo
2015-10-31 5:31 ` Wangnan (F)
2015-10-14 12:41 ` [PATCH 11/31] perf test: Add 'perf test BPF' Wang Nan
2015-10-14 12:41 ` [PATCH 12/31] perf probe: Reset args and nargs for probe_trace_event when failure Wang Nan
2015-10-29 22:39 ` Arnaldo Carvalho de Melo
2015-10-30 10:24 ` 平松雅巳 / HIRAMATU，MASAMI
2015-10-14 12:41 ` [PATCH 13/31] bpf tools: Load a program with different instances using preprocessor Wang Nan
2015-10-29 22:44 ` Arnaldo Carvalho de Melo
2015-10-31 10:40 ` Wangnan (F)
2015-10-14 12:41 ` [PATCH 14/31] perf tools: Add BPF_PROLOGUE config options for further patches Wang Nan
2015-10-29 22:45 ` Arnaldo Carvalho de Melo
2015-10-14 12:41 ` [PATCH 15/31] perf tools: Compile dwarf-regs.c if CONFIG_BPF_PROLOGUE is on Wang Nan
2015-10-14 12:41 ` [PATCH 16/31] perf tools: Add prologue for BPF programs for fetching arguments Wang Nan
2015-10-15 5:26 ` Namhyung Kim
2015-10-15 11:56 ` Wangnan (F)
2015-10-14 12:41 ` [PATCH 17/31] perf tools: Generate prologue for BPF programs Wang Nan
2015-10-14 12:41 ` [PATCH 18/31] perf tools: Use same BPF program if arguments are identical Wang Nan
2015-10-14 12:41 ` [PATCH 19/31] perf record: Support custom vmlinux path Wang Nan
2015-10-14 12:41 ` [PATCH 20/31] perf tools: Allow BPF program attach to uprobe events Wang Nan
2015-10-27 2:28 ` Wangnan (F)
2015-10-27 3:07 ` [PATCH] perf tools: Allow BPF program attach to modules Wang Nan
2015-10-14 12:41 ` [PATCH 21/31] perf test: Enforce LLVM test, add kbuild test Wang Nan
2015-10-19 14:42 ` Namhyung Kim
2015-10-19 14:53 ` Arnaldo Carvalho de Melo
2015-10-19 15:21 ` Namhyung Kim
2015-10-20 10:36 ` Wangnan (F)
2015-10-20 13:42 ` Arnaldo Carvalho de Melo
2015-10-20 12:06 ` Wangnan (F)
2015-10-20 13:41 ` Arnaldo Carvalho de Melo
2015-10-14 12:41 ` [PATCH 22/31] perf test: Test BPF prologue Wang Nan
2015-10-14 12:41 ` [PATCH 23/31] bpf tools: Add helper function for updating bpf maps elements Wang Nan
2015-10-14 12:41 ` [PATCH 24/31] bpf tools: Collect map definition in bpf_object Wang Nan
2015-10-14 12:41 ` [PATCH 25/31] bpf tools: Extract and collect map names from BPF object file Wang Nan
2015-10-14 12:41 ` [PATCH 26/31] perf tools: Support perf event alias name Wang Nan
2015-10-21 8:53 ` Namhyung Kim
2015-10-21 13:00 ` Wangnan (F)
2015-10-22 7:16 ` Namhyung Kim
2015-10-22 7:29 ` Wangnan (F)
2015-10-22 7:53 ` Namhyung Kim
2015-10-22 7:59 ` Wangnan (F)
2015-10-14 12:41 ` [PATCH 27/31] perf tools: Pass available CPU number to clang compiler Wang Nan
2015-10-14 12:41 ` [PATCH 28/31] perf tools: Add API to config maps in bpf object Wang Nan
2015-10-14 12:41 ` [PATCH 29/31] perf tools: Add API to apply config to BPF map Wang Nan
2015-10-14 12:41 ` [PATCH 30/31] perf record: Apply config to BPF objects before recording Wang Nan
2015-10-14 12:41 ` [PATCH 31/31] perf tools: Enable BPF object configure syntax Wang Nan
2015-10-14 15:44 ` [GIT PULL 00/31] perf tools: filtering events using eBPF programs Namhyung Kim
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