Antminer T9, T9+

[borz]

Привет! т9+, он лежал долго в гараже, и точно помню, что был рабочий. Решил подключить на пул сегодня, и вот такая ерунда, что на картинке... Прошил МСК прошивкой - толку нет, если только вольтаж задирать и частоту, тогда майнит 6тх и быстро греется. Вынесите приговор, что не так, хотя бы примерно.

 

[Splinter]

@borz Kernellog от стоковой прошивки покажите. По картинкам ничего не сказать.

[borz]

3 минуты назад, Splinter сказал:

@borz Kernellog от стоковой прошивки покажите. По картинкам ничего не сказать.

Скрытый текст

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.14.0-xilinx-g16220c3 (lzq@armdev2) (gcc version 4.8.3 20140320 (prerelease) (Sourcery CodeBench Lite 2014.05-23) ) #83 SMP PREEMPT Thu Jul 12 11:42:53 CST 2018
[    0.000000] CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine model: Xilinx Zynq
[    0.000000] cma: CMA: reserved 128 MiB at 16800000
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] On node 0 totalpages: 126976
[    0.000000] free_area_init_node: node 0, pgdat c074ac00, node_mem_map debd8000
[    0.000000]   Normal zone: 992 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 126976 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 8 pages/cpu @debc1000 s9088 r8192 d15488 u32768
[    0.000000] pcpu-alloc: s9088 r8192 d15488 u32768 alloc=8*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 125984
[    0.000000] Kernel command line: noinitrd mem=496M console=ttyPS0,115200 root=ubi0:rootfs ubi.mtd=1 rootfstype=ubifs rw rootwait
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 364316K/507904K available (5057K kernel code, 284K rwdata, 1928K rodata, 204K init, 258K bss, 143588K reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xdf800000 - 0xff000000   ( 504 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xdf000000   ( 496 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc06da8ac   (6987 kB)
[    0.000000]       .init : 0xc06db000 - 0xc070e380   ( 205 kB)
[    0.000000]       .data : 0xc0710000 - 0xc0757138   ( 285 kB)
[    0.000000]        .bss : 0xc0757144 - 0xc0797bfc   ( 259 kB)
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000]     Dump stacks of tasks blocking RCU-preempt GP.
[    0.000000]     RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] ps7-slcr mapped to df802000
[    0.000000] zynq_clock_init: clkc starts at df802100
[    0.000000] Zynq clock init
[    0.000014] sched_clock: 64 bits at 333MHz, resolution 3ns, wraps every 3298534883328ns
[    0.000292] ps7-ttc #0 at df804000, irq=43
[    0.000594] Console: colour dummy device 80x30
[    0.000624] Calibrating delay loop... 1332.01 BogoMIPS (lpj=6660096)
[    0.100242] pid_max: default: 32768 minimum: 301
[    0.100451] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.100470] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.102624] CPU: Testing write buffer coherency: ok
[    0.102934] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.102991] Setting up static identity map for 0x4cb118 - 0x4cb170
[    0.103210] L310 cache controller enabled
[    0.103230] l2x0: 8 ways, CACHE_ID 0x410000c8, AUX_CTRL 0x72760000, Cache size: 512 kB
[    0.180986] CPU1: Booted secondary processor
[    0.270219] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.270349] Brought up 2 CPUs
[    0.270368] SMP: Total of 2 processors activated.
[    0.270376] CPU: All CPU(s) started in SVC mode.
[    0.271031] devtmpfs: initialized
[    0.273460] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[    0.274649] regulator-dummy: no parameters
[    0.281991] NET: Registered protocol family 16
[    0.284281] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.286552] cpuidle: using governor ladder
[    0.286565] cpuidle: using governor menu
[    0.293931] syscon f8000000.ps7-slcr: regmap [mem 0xf8000000-0xf8000fff] registered
[    0.295442] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[    0.295456] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.295565] zynq-ocm f800c000.ps7-ocmc: ZYNQ OCM pool: 256 KiB @ 0xdf880000
[    0.317193] bio: create slab <bio-0> at 0
[    0.318584] vgaarb: loaded
[    0.319283] SCSI subsystem initialized
[    0.320166] usbcore: registered new interface driver usbfs
[    0.320478] usbcore: registered new interface driver hub
[    0.320695] usbcore: registered new device driver usb
[    0.321865] media: Linux media interface: v0.10
[    0.322026] Linux video capture interface: v2.00
[    0.322263] pps_core: LinuxPPS API ver. 1 registered
[    0.322275] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.322395] PTP clock support registered
[    0.322755] EDAC MC: Ver: 3.0.0
[    0.323929] Advanced Linux Sound Architecture Driver Initialized.
[    0.326642] DMA-API: preallocated 4096 debug entries
[    0.326656] DMA-API: debugging enabled by kernel config
[    0.326725] Switched to clocksource arm_global_timer
[    0.346624] NET: Registered protocol family 2
[    0.347618] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    0.347676] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    0.347761] TCP: Hash tables configured (established 4096 bind 4096)
[    0.347805] TCP: reno registered
[    0.347821] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.347851] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.348093] NET: Registered protocol family 1
[    0.348426] RPC: Registered named UNIX socket transport module.
[    0.348437] RPC: Registered udp transport module.
[    0.348446] RPC: Registered tcp transport module.
[    0.348454] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.348467] PCI: CLS 0 bytes, default 64
[    0.348891] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
[    0.350894] futex hash table entries: 512 (order: 3, 32768 bytes)
[    0.352962] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    0.353152] msgmni has been set to 967
[    0.353900] io scheduler noop registered
[    0.353913] io scheduler deadline registered
[    0.353953] io scheduler cfq registered (default)
[    0.368677] dma-pl330 f8003000.ps7-dma: Loaded driver for PL330 DMAC-2364208
[    0.368698] dma-pl330 f8003000.ps7-dma:     DBUFF-128x8bytes Num_Chans-8 Num_Peri-4 Num_Events-16
[    0.492901] e0001000.serial: ttyPS0 at MMIO 0xe0001000 (irq = 82, base_baud = 3124999) is a xuartps
[    1.060249] console [ttyPS0] enabled
[    1.064488] xdevcfg f8007000.ps7-dev-cfg: ioremap 0xf8007000 to df866000
[    1.072115] [drm] Initialized drm 1.1.0 20060810
[    1.089055] brd: module loaded
[    1.098420] loop: module loaded
[    1.107872] e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k
[    1.113624] e1000e: Copyright(c) 1999 - 2013 Intel Corporation.
[    1.121587] libphy: XEMACPS mii bus: probed
[    1.125959] ------------- phy_id = 0x3625e62
[    1.130996] xemacps e000b000.ps7-ethernet: pdev->id -1, baseaddr 0xe000b000, irq 54
[    1.139830] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.146459] ehci-pci: EHCI PCI platform driver
[    1.153704] zynq-dr e0002000.ps7-usb: Unable to init USB phy, missing?
[    1.160540] usbcore: registered new interface driver usb-storage
[    1.167388] mousedev: PS/2 mouse device common for all mice
[    1.173465] i2c /dev entries driver
[    1.180366] zynq-edac f8006000.ps7-ddrc: ecc not enabled
[    1.185838] cpufreq_cpu0: failed to get cpu0 regulator: -19
[    1.191763] Xilinx Zynq CpuIdle Driver started
[    1.196604] sdhci: Secure Digital Host Controller Interface driver
[    1.202732] sdhci: Copyright(c) Pierre Ossman
[    1.207123] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.213843] mmc0: no vqmmc regulator found
[    1.217881] mmc0: no vmmc regulator found
[    1.256763] mmc0: SDHCI controller on e0100000.ps7-sdio [e0100000.ps7-sdio] using ADMA
[    1.267500] usbcore: registered new interface driver usbhid
[    1.272988] usbhid: USB HID core driver
[    1.277749] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
[    1.284013] nand: Micron MT29F2G08ABAEAWP
[    1.288049] nand: 256MiB, SLC, page size: 2048, OOB size: 64
[    1.293927] Bad block table found at page 131008, version 0x01
[    1.300145] Bad block table found at page 130944, version 0x01
[    1.306190] 3 ofpart partitions found on MTD device pl353-nand
[    1.311961] Creating 3 MTD partitions on "pl353-nand":
[    1.317117] 0x000000000000-0x000002000000 : "BOOT.bin-env-dts-kernel"
[    1.325113] 0x000002000000-0x00000b000000 : "angstram-rootfs"
[    1.332424] 0x00000b000000-0x000010000000 : "upgrade-rootfs"
[    1.343163] TCP: cubic registered
[    1.346399] NET: Registered protocol family 17
[    1.351104] Registering SWP/SWPB emulation handler
[    1.357086] regulator-dummy: disabling
[    1.361355] UBI: attaching mtd1 to ubi0
[    1.886932] UBI: scanning is finished
[    1.898538] UBI: attached mtd1 (name "angstram-rootfs", size 144 MiB) to ubi0
[    1.905590] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[    1.912385] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[    1.919062] UBI: VID header offset: 2048 (aligned 2048), data offset: 4096
[    1.925900] UBI: good PEBs: 1152, bad PEBs: 0, corrupted PEBs: 0
[    1.931910] UBI: user volume: 1, internal volumes: 1, max. volumes count: 128
[    1.939021] UBI: max/mean erase counter: 12/7, WL threshold: 4096, image sequence number: 1904798197
[    1.948137] UBI: available PEBs: 0, total reserved PEBs: 1152, PEBs reserved for bad PEB handling: 40
[    1.957355] UBI: background thread "ubi_bgt0d" started, PID 1084
[    1.957360] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[    1.961250] ALSA device list:
[    1.961254]   No soundcards found.
[    1.977665] UBIFS: background thread "ubifs_bgt0_0" started, PID 1086
[    2.006819] UBIFS: recovery needed
[    2.088754] UBIFS: recovery completed
[    2.092420] UBIFS: mounted UBI device 0, volume 0, name "rootfs"
[    2.098368] UBIFS: LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[    2.107480] UBIFS: FS size: 128626688 bytes (122 MiB, 1013 LEBs), journal size 9023488 bytes (8 MiB, 72 LEBs)
[    2.117364] UBIFS: reserved for root: 0 bytes (0 KiB)
[    2.122392] UBIFS: media format: w4/r0 (latest is w4/r0), UUID 2C44D057-D18E-4B6A-AE64-9800BDA82610, small LPT model
[    2.133685] VFS: Mounted root (ubifs filesystem) on device 0:11.
[    2.140873] devtmpfs: mounted
[    2.143978] Freeing unused kernel memory: 204K (c06db000 - c070e000)
[    2.983322] random: dd urandom read with 1 bits of entropy available
[    3.346739] 
[    3.346739] bcm54xx_config_init
[    3.956777] 
[    3.956777] bcm54xx_config_init
[    7.957609] xemacps e000b000.ps7-ethernet: Set clk to 24999999 Hz
[    7.963696] xemacps e000b000.ps7-ethernet: link up (100/FULL)
[   24.151827] In axi fpga driver!
[   24.154898] request_mem_region OK!
[   24.158325] AXI fpga dev virtual address is 0xdf9fe000
[   24.163396] *base_vir_addr = 0xc725
[   24.178024] In fpga mem driver!
[   24.181530] request_mem_region OK!
[   24.185091] fpga mem virtual address is 0xe2000000
[   24.926173] 
[   24.926173] bcm54xx_config_init
[   25.556106] 
[   25.556106] bcm54xx_config_init
[   29.556540] xemacps e000b000.ps7-ethernet: Set clk to 24999999 Hz
[   29.562555] xemacps e000b000.ps7-ethernet: link up (100/FULL)
[ 1343.243070] random: nonblocking pool is initialized
[1252092.892948] xemacps e000b000.ps7-ethernet: link down
[1252095.892653] xemacps e000b000.ps7-ethernet: link up (100/FULL)
Detect 512MB control board of XILINX
Miner Type = T9+
Miner compile time: Wed Apr 15 16:08:40 CST 2020 type: Antminer T9+ (vnish 3.8.6)
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x0000ffff
Checking fans!
1 fan ok
2 fan ok
set_reset_allhashboard = 0x0000ffff
chain[1] PIC jump to app
Check chain[1] PIC fw version=0x90
chain[2] PIC jump to app
Check chain[2] PIC fw version=0x90
chain[3] PIC jump to app
Check chain[3] PIC fw version=0x90
Chain[1] will use voltage=930 [1] to open core
Chain[2] will use voltage=930 [1] to open core
Chain[3] will use voltage=930 [1] to open core
Chain[8] will use voltage=930 [1] to open core
Chain[9] will use voltage=930 [1] to open core
Chain[10] will use voltage=930 [1] to open core
Chain[11] will use voltage=930 [1] to open core
Chain[12] will use voltage=930 [1] to open core
Chain[13] will use voltage=930 [1] to open core
Fix freq=825 Chain[1] voltage_pic=7 value=890
Fix freq=825 Chain[2] voltage_pic=7 value=890
Fix freq=825 Chain[3] voltage_pic=7 value=890
Fix freq=825 Chain[8] voltage_pic=7 value=890
Fix freq=825 Chain[9] voltage_pic=7 value=890
Fix freq=825 Chain[10] voltage_pic=7 value=890
Fix freq=825 Chain[11] voltage_pic=7 value=890
Fix freq=825 Chain[12] voltage_pic=7 value=890
Fix freq=825 Chain[13] voltage_pic=7 value=890
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
T9+ try get asic num for the 1 time
Chain[1] has 0 asic
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
T9+ try get asic num for the 2 time
Chain[1] has 0 asic
set_reset_allhashboard = 0x0000ffff
set_reset_allhashboard = 0x00000000
T9+ try get asic num for the 3 time
Chain[1] has 0 asic
Chain[3] has no freq in PIC, set default freq=825M
Chain[3] has no core num in PIC
Chain[9] has no freq in PIC, set default freq=825M
Chain[9] has no core num in PIC
Chain[12] has no freq in PIC, set default freq=825M
Chain[12] has no core num in PIC
Chain[13] has no freq in PIC, set default freq=825M
Chain[13] has no core num in PIC

Set CHIP PowerOff Temp=120C

Miner fix freq ...
read PIC voltage=930 on chain[3]
Chain:3 chipnum=18
Asic[ 0]:825 
Asic[ 1]:825 Asic[ 2]:825 Asic[ 3]:825 Asic[ 4]:825 Asic[ 5]:875 Asic[ 6]:825 Asic[ 7]:825 Asic[ 8]:825 
Asic[ 9]:825 Asic[10]:825 Asic[11]:825 Asic[12]:825 Asic[13]:825 Asic[14]:825 Asic[15]:825 Asic[16]:825 
Asic[17]:825 
Chain:3 max freq=875
Chain:3 min freq=825

read PIC voltage=930 on chain[9]
Chain:9 chipnum=1
Asic[ 0]:225 

Chain:9 max freq=225
Chain:9 min freq=225

read PIC voltage=930 on chain[12]
Chain:12 chipnum=18
Asic[ 0]:825 
Asic[ 1]:825 Asic[ 2]:825 Asic[ 3]:825 Asic[ 4]:850 Asic[ 5]:825 Asic[ 6]:825 Asic[ 7]:825 Asic[ 8]:825 
Asic[ 9]:825 Asic[10]:825 Asic[11]:825 Asic[12]:825 Asic[13]:825 Asic[14]:825 Asic[15]:825 Asic[16]:825 
Asic[17]:825 
Chain:12 max freq=850
Chain:12 min freq=825

read PIC voltage=930 on chain[13]
Chain:13 chipnum=18
Asic[ 0]:825 
Asic[ 1]:825 Asic[ 2]:825 Asic[ 3]:825 Asic[ 4]:825 Asic[ 5]:825 Asic[ 6]:825 Asic[ 7]:825 Asic[ 8]:825 
Asic[ 9]:825 Asic[10]:825 Asic[11]:825 Asic[12]:825 Asic[13]:825 Asic[14]:825 Asic[15]:825 Asic[16]:825 
Asic[17]:825 
Chain:13 max freq=825
Chain:13 min freq=825

max freq = 875
set baud=1
chain[12] temp chip I2C addr=0x98 ID=0x41
open core on chain[3] [12] [13]...
set voltage=890 on chain[3], the real voltage=890
Chain[3] set working voltage=890 [7]
setStartTimePoint total_tv_start_sys=1496280 total_tv_end_sys=1496281
restartNum = 2 , auto-reinit enabled...
do read_temp_func once...
do check_asic_reg 0x08

get RT hashrate from Chain[3]: (asic index start from 1-18)
Asic[01]=91.1170 Asic[02]=86.9730 Asic[03]=88.0460 Asic[04]=96.9890 Asic[05]=100.227 Asic[06]=92.1400 Asic[07]=88.3150 Asic[08]=93.7340 
Asic[09]=86.4690 Asic[10]=100.495 Asic[11]=92.6600 Asic[12]=87.1070 Asic[13]=92.8610 Asic[14]=94.5890 Asic[15]=91.3010 Asic[16]=94.1360 
Asic[17]=99.7570 Asic[18]=95.5120 

get RT hashrate from Chain[9]: (asic index start from 1-18)

get RT hashrate from Chain[12]: (asic index start from 1-18)
Asic[01]=87.2240 Asic[02]=95.6970 Asic[03]=91.2000 Asic[04]=91.8880 Asic[05]=95.9650 Asic[06]=90.7810 Asic[07]=97.4080 Asic[08]=95.1930 
Asic[09]=96.4350 Asic[10]=91.9720 Asic[11]=96.8040 Asic[12]=88.1130 Asic[13]=99.2700 Asic[14]=91.8550 Asic[15]=95.3780 Asic[16]=94.6900 
Asic[17]=98.0960 Asic[18]=92.2570 

get RT hashrate from Chain[13]: (asic index start from 1-18)
Asic[01]=89.9420 Asic[02]=94.2370 Asic[03]=92.8610 Asic[04]=101.216 Asic[05]=93.2470 Asic[06]=95.6130 Asic[07]=91.4690 Asic[08]=88.9520 
Asic[09]=94.6400 Asic[10]=92.1230 Asic[11]=95.2440 Asic[12]=91.4020 Asic[13]=96.1670 Asic[14]=98.1290 Asic[15]=91.8210 Asic[16]=94.2710 
Asic[17]=94.5730 Asic[18]=97.3240 
Check Chain[3] ASIC RT error: (asic index start from 1-18)
Asic[05]=100.227000
Asic[10]=100.495000
Check Chain[9] ASIC RT error: (asic index start from 1-18)
Check Chain[12] ASIC RT error: (asic index start from 1-18)
Check Chain[13] ASIC RT error: (asic index start from 1-18)
Asic[04]=101.216000
Done check_asic_reg
do read temp on Chain[3]
Chain[3] Chip[0] pcb temperature=72
Chain[3] Chip[1] junction temperature=87
Done read temp on Chain[3]
do read temp on Chain[9]
Chain[9] Chip[0] pcb temperature=0
Chain[9] Chip[1] junction temperature=0
Done read temp on Chain[9]
do read temp on Chain[12]
Chain[12] Chip[0] pcb temperature=72
Chain[12] Chip[1] junction temperature=87
Done read temp on Chain[12]
do read temp on Chain[13]
Chain[13] Chip[0] pcb temperature=72
Chain[13] Chip[1] junction temperature=87
Done read temp on Chain[13]
set FAN speed according to: temp_highest=87 temp_top1[PWM_T]=87 temp_top1[TEMP_POS_LOCAL]=72 temp_change=0 fix_fan_steps=0
FAN PWM: 100
read_temp_func Done!
CRC error counter=20134
 

Спасибо за отклик

[Splinter]

@borz Это не сток.

[borz]

08.05.2021 в 01:16, Splinter сказал:

@borz Это не сток.

Забыл отписать. Прошил стоком - все заработало. Чудеса какие то.

[Kasper_T]

Дайте прошивку от Китайского тестером чипов и хэшплат Antminer T9+

[Splinter]

@Kasper_T 

https://www.avito.ru/rossiya?q=Прошивки+для+Тестера

[segano]

Перед тем как выдать ошибку ерор пик,сбрасывали настройки на заводские?при полном сбросе контролька иногда данные s9 выдаёт и начинается проблема с pic .есть 2 варианта,запустить её с норм хешкой.или прошить контрольку прошивкой т9 вместе с этой платой

[Papindruk]

Обращаюсь к коллективному разуму за помощью.

 

Машинка т9+, есть 1.8В только на последних ЛДО, на ПИК шестая нога выдает 3.3 Вольта, и при тесте она должна опускаться до нуля, этого не происходит, опускается максимум с 3.3 до 3.1, ПИК рабочий, ШИМ и ЕПРОМ рабочие, в обвязке все сопротивления в норме.

 

В чем может быть причина, в какую сторону копать?