[SOLVED] What is wrong?

after complete start of openhab

[01:21:21] openhabian@openHABianPi:~$ dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.19.66-v7+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-g8460611)) #1253 SMP Thu Aug 15 11:49:46 BST 2019
[    0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=10c5383d
[    0.000000] CPU: div instructions available: patching division code
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: Raspberry Pi 3 Model B Rev 1.2
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 8 MiB at 0x3dc00000
[    0.000000] On node 0 totalpages: 255488
[    0.000000]   Normal zone: 2246 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 255488 pages, LIFO batch:63
[    0.000000] random: get_random_bytes called from start_kernel+0xac/0x4b4 with crng_init=0
[    0.000000] percpu: Embedded 17 pages/cpu s39488 r8192 d21952 u69632
[    0.000000] pcpu-alloc: s39488 r8192 d21952 u69632 alloc=17*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 253242
[    0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbdepth=16 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3f000000 vc_mem.mem_size=0x3f600000  dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=PARTUUID=6c18fe32-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 989820K/1021952K available (8192K kernel code, 629K rwdata, 2176K rodata, 1024K init, 821K bss, 23940K reserved, 8192K cma-reserved)
[    0.000000] Virtual kernel memory layout:
                   vector  : 0xffff0000 - 0xffff1000   (   4 kB)
                   fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
                   vmalloc : 0xbe800000 - 0xff800000   (1040 MB)
                   lowmem  : 0x80000000 - 0xbe600000   ( 998 MB)
                   modules : 0x7f000000 - 0x80000000   (  16 MB)
                     .text : 0x(ptrval) - 0x(ptrval)   (9184 kB)
                     .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)
                     .data : 0x(ptrval) - 0x(ptrval)   ( 630 kB)
                      .bss : 0x(ptrval) - 0x(ptrval)   ( 822 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] ftrace: allocating 26394 entries in 78 pages
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns
[    0.000007] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns
[    0.000023] Switching to timer-based delay loop, resolution 52ns
[    0.000289] Console: colour dummy device 80x30
[    0.000914] console [tty1] enabled
[    0.000972] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000)
[    0.001016] pid_max: default: 32768 minimum: 301
[    0.001371] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.001407] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.002341] CPU: Testing write buffer coherency: ok
[    0.002826] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.003493] Setting up static identity map for 0x100000 - 0x10003c
[    0.003660] rcu: Hierarchical SRCU implementation.
[    0.004477] smp: Bringing up secondary CPUs ...
[    0.005338] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.006260] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.007124] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.007244] smp: Brought up 1 node, 4 CPUs
[    0.007326] SMP: Total of 4 processors activated (153.60 BogoMIPS).
[    0.007350] CPU: All CPU(s) started in HYP mode.
[    0.007370] CPU: Virtualization extensions available.
[    0.008376] devtmpfs: initialized
[    0.021340] VFP support v0.3: implementor 41 architecture 3 part 40 variant 3 rev 4
[    0.021616] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.021665] futex hash table entries: 1024 (order: 4, 65536 bytes)
[    0.022273] pinctrl core: initialized pinctrl subsystem
[    0.023156] NET: Registered protocol family 16
[    0.026117] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.031842] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.031878] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.032099] Serial: AMBA PL011 UART driver
[    0.034397] bcm2835-mbox 3f00b880.mailbox: mailbox enabled
[    0.069607] bcm2835-dma 3f007000.dma: DMA legacy API manager at (ptrval), dmachans=0x1
[    0.071527] SCSI subsystem initialized
[    0.071766] usbcore: registered new interface driver usbfs
[    0.071849] usbcore: registered new interface driver hub
[    0.071961] usbcore: registered new device driver usb
[    0.090302] raspberrypi-firmware soc:firmware: Attached to firmware from 2019-08-15 12:07, variant start_cd
[    0.100132] raspberrypi-firmware soc:firmware: Firmware hash is 0e6daa5106dd4164474616408e0dc24f997ffcf3
[    0.111831] clocksource: Switched to clocksource arch_sys_counter
[    0.201168] VFS: Disk quotas dquot_6.6.0
[    0.201281] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.201490] FS-Cache: Loaded
[    0.201717] CacheFiles: Loaded
[    0.211729] NET: Registered protocol family 2
[    0.212550] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
[    0.212614] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[    0.212745] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    0.212950] TCP: Hash tables configured (established 8192 bind 8192)
[    0.213103] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    0.213169] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    0.213499] NET: Registered protocol family 1
[    0.214099] RPC: Registered named UNIX socket transport module.
[    0.214127] RPC: Registered udp transport module.
[    0.214149] RPC: Registered tcp transport module.
[    0.214170] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.215821] hw perfevents: enabled with armv7_cortex_a7 PMU driver, 7 counters available
[    0.218865] Initialise system trusted keyrings
[    0.219078] workingset: timestamp_bits=14 max_order=18 bucket_order=4
[    0.229067] FS-Cache: Netfs 'nfs' registered for caching
[    0.229664] NFS: Registering the id_resolver key type
[    0.229717] Key type id_resolver registered
[    0.229739] Key type id_legacy registered
[    0.229771] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.232131] Key type asymmetric registered
[    0.232160] Asymmetric key parser 'x509' registered
[    0.232230] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[    0.232409] io scheduler noop registered
[    0.232434] io scheduler deadline registered (default)
[    0.232628] io scheduler cfq registered
[    0.232651] io scheduler mq-deadline registered (default)
[    0.232676] io scheduler kyber registered
[    0.235833] bcm2708_fb soc:fb: FB found 1 display(s)
[    0.244725] Console: switching to colour frame buffer device 82x26
[    0.251523] bcm2708_fb soc:fb: Registered framebuffer for display 0, size 656x416
[    0.258251] bcm2835-rng 3f104000.rng: hwrng registered
[    0.260938] vc-mem: phys_addr:0x00000000 mem_base=0x3f000000 mem_size:0x3f600000(1014 MiB)
[    0.266242] vc-sm: Videocore shared memory driver
[    0.268995] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000
[    0.284868] brd: module loaded
[    0.297554] loop: module loaded
[    0.300602] Loading iSCSI transport class v2.0-870.
[    0.303804] libphy: Fixed MDIO Bus: probed
[    0.306313] usbcore: registered new interface driver lan78xx
[    0.308765] usbcore: registered new interface driver smsc95xx
[    0.311121] dwc_otg: version 3.00a 10-AUG-2012 (platform bus)
[    0.341430] dwc_otg 3f980000.usb: base=(ptrval)
[    0.544072] Core Release: 2.80a
[    0.546453] Setting default values for core params
[    0.548904] Finished setting default values for core params
[    0.751643] Using Buffer DMA mode
[    0.754056] Periodic Transfer Interrupt Enhancement - disabled
[    0.756486] Multiprocessor Interrupt Enhancement - disabled
[    0.758860] OTG VER PARAM: 0, OTG VER FLAG: 0
[    0.761207] Dedicated Tx FIFOs mode
[    0.763920] WARN::dwc_otg_hcd_init:1045: FIQ DMA bounce buffers: virt = bdd04000 dma = 0xfdd04000 len=9024
[    0.768501] FIQ FSM acceleration enabled for :
               Non-periodic Split Transactions
               Periodic Split Transactions
               High-Speed Isochronous Endpoints
               Interrupt/Control Split Transaction hack enabled
[    0.779417] dwc_otg: Microframe scheduler enabled
[    0.779475] WARN::hcd_init_fiq:457: FIQ on core 1
[    0.781705] WARN::hcd_init_fiq:458: FIQ ASM at 80654f4c length 36
[    0.783918] WARN::hcd_init_fiq:497: MPHI regs_base at be810000
[    0.786174] dwc_otg 3f980000.usb: DWC OTG Controller
[    0.788434] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1
[    0.790752] dwc_otg 3f980000.usb: irq 56, io mem 0x00000000
[    0.793074] Init: Port Power? op_state=1
[    0.795311] Init: Power Port (0)
[    0.797726] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.19
[    0.802255] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    0.804668] usb usb1: Product: DWC OTG Controller
[    0.807034] usb usb1: Manufacturer: Linux 4.19.66-v7+ dwc_otg_hcd
[    0.809453] usb usb1: SerialNumber: 3f980000.usb
[    0.812423] hub 1-0:1.0: USB hub found
[    0.814693] hub 1-0:1.0: 1 port detected
[    0.817452] dwc_otg: FIQ enabled
[    0.817458] dwc_otg: NAK holdoff enabled
[    0.817464] dwc_otg: FIQ split-transaction FSM enabled
[    0.817474] Module dwc_common_port init
[    0.817748] usbcore: registered new interface driver usb-storage
[    0.820193] mousedev: PS/2 mouse device common for all mice
[    0.823391] bcm2835-wdt bcm2835-wdt: Broadcom BCM2835 watchdog timer
[    0.826008] bcm2835-cpufreq: min=600000 max=1200000
[    0.828830] sdhci: Secure Digital Host Controller Interface driver
[    0.831236] sdhci: Copyright(c) Pierre Ossman
[    0.834026] mmc-bcm2835 3f300000.mmcnr: could not get clk, deferring probe
[    0.836924] sdhost-bcm2835 3f202000.mmc: could not get clk, deferring probe
[    0.839597] sdhci-pltfm: SDHCI platform and OF driver helper
[    0.843708] ledtrig-cpu: registered to indicate activity on CPUs
[    0.846476] hidraw: raw HID events driver (C) Jiri Kosina
[    0.849239] usbcore: registered new interface driver usbhid
[    0.851889] usbhid: USB HID core driver
[    0.855187] vchiq: vchiq_init_state: slot_zero = (ptrval), is_master = 0
[    0.859229] [vc_sm_connected_init]: start
[    0.862807] vc_vchi_sm_init: failed to open VCHI service (-1)
[    0.862815] [vc_sm_connected_init]: failed to initialize shared memory service
[    0.867893] [vc_sm_connected_init]: end - returning -1
[    0.871602] Initializing XFRM netlink socket
[    0.874180] NET: Registered protocol family 17
[    0.876846] Key type dns_resolver registered
[    0.879838] Registering SWP/SWPB emulation handler
[    0.883025] registered taskstats version 1
[    0.885482] Loading compiled-in X.509 certificates
[    0.895145] uart-pl011 3f201000.serial: cts_event_workaround enabled
[    0.897740] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 81, base_baud = 0) is a PL011 rev2
[    0.904703] mmc-bcm2835 3f300000.mmcnr: mmc_debug:0 mmc_debug2:0
[    0.907259] mmc-bcm2835 3f300000.mmcnr: DMA channel allocated
[    0.935188] sdhost: log_buf @ (ptrval) (fdd07000)
[    0.972486] mmc1: queuing unknown CIS tuple 0x80 (2 bytes)
[    0.976522] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    0.980452] mmc1: queuing unknown CIS tuple 0x80 (3 bytes)
[    0.985563] mmc1: queuing unknown CIS tuple 0x80 (7 bytes)
[    0.987751] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1)
[    0.991162] of_cfs_init
[    0.993326] of_cfs_init: OK
[    0.995872] Waiting for root device PARTUUID=6c18fe32-02...
[    1.042116] Indeed it is in host mode hprt0 = 00021501
[    1.111059] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.111061] random: fast init done
[    1.120293] mmc0: new high speed SDHC card at address 59b4
[    1.123774] mmcblk0: mmc0:59b4       14.9 GiB
[    1.128060]  mmcblk0: p1 p2
[    1.153864] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    1.158161] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    1.169618] devtmpfs: mounted
[    1.177244] Freeing unused kernel memory: 1024K
[    1.178624] mmc1: new high speed SDIO card at address 0001
[    1.182289] Run /sbin/init as init process
[    1.251910] usb 1-1: new high-speed USB device number 2 using dwc_otg
[    1.254510] Indeed it is in host mode hprt0 = 00001101
[    1.492198] usb 1-1: New USB device found, idVendor=0424, idProduct=9514, bcdDevice= 2.00
[    1.497362] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    1.500904] hub 1-1:1.0: USB hub found
[    1.503813] hub 1-1:1.0: 5 ports detected
[    1.664030] systemd[1]: System time before build time, advancing clock.
[    1.819682] NET: Registered protocol family 10
[    1.821926] usb 1-1.1: new high-speed USB device number 3 using dwc_otg
[    1.823715] Segment Routing with IPv6
[    1.857433] random: systemd: uninitialized urandom read (16 bytes read)
[    1.862954] random: systemd: uninitialized urandom read (16 bytes read)
[    1.871812] systemd[1]: systemd 232 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
[    1.880828] systemd[1]: Detected architecture arm.
[    1.901500] systemd[1]: Set hostname to <openHABianPi>.
[    1.952470] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00, bcdDevice= 2.00
[    1.958588] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[    1.960093] random: systemd-sysv-ge: uninitialized urandom read (16 bytes read)
[    1.974635] smsc95xx v1.0.6
[    2.065567] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-3f980000.usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:91:0d:d6
[    2.161887] usb 1-1.3: new full-speed USB device number 4 using dwc_otg
[    2.295089] usb 1-1.3: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.54
[    2.300832] usb 1-1.3: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[    2.303879] usb 1-1.3: Product: USB2.0-Serial
[    2.453856] systemd[1]: Configuration file /usr/lib/systemd/system/amazon-dash.service is marked world-inaccessible. This has no effect as configuration data is accessible via APIs without restrictions. Proceeding anyway.
[    2.522530] systemd[1]: Listening on Syslog Socket.
[    2.529801] systemd[1]: Listening on udev Kernel Socket.
[    2.537623] systemd[1]: Created slice System Slice.
[    2.548240] systemd[1]: Mounting POSIX Message Queue File System...
[    2.559611] systemd[1]: Mounting Debug File System...
[    2.568063] systemd[1]: Listening on Journal Socket.
[    3.141225] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[    3.416746] systemd-journald[119]: Received request to flush runtime journal from PID 1
[    3.738946] vc_sm_cma: module is from the staging directory, the quality is unknown, you have been warned.
[    3.741440] bcm2835_vc_sm_cma_probe: Videocore shared memory driver
[    3.741455] [vc_sm_connected_init]: start
[    3.741620] vc_sm_cma_vchi_init: failed to open VCHI service (-1)
[    3.741628] [vc_sm_connected_init]: failed to initialize shared memory service
[    3.852094] media: Linux media interface: v0.10
[    3.912035] videodev: Linux video capture interface: v2.00
[    3.924448] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned.
[    3.938529] bcm2835_audio soc:audio: card created with 8 channels
[    3.951652] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned.
[    4.044978] bcm2835_codec: module is from the staging directory, the quality is unknown, you have been warned.
[    4.045006] bcm2835_v4l2: module is from the staging directory, the quality is unknown, you have been warned.
[    4.054623] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    4.060024] bcm2835_mmal_vchiq: Failed to open VCHI service connection (status=-1)
[    4.066276] bcm2835_mmal_vchiq: Failed to open VCHI service connection (status=-1)
[    4.128502] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    4.184575] brcmfmac: F1 signature read @0x18000000=0x1541a9a6
[    4.193377] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[    4.193635] usbcore: registered new interface driver brcmfmac
[    4.206955] usbcore: registered new interface driver usbserial_generic
[    4.207026] usbserial: USB Serial support registered for generic
[    4.224628] usbcore: registered new interface driver ch341
[    4.224710] usbserial: USB Serial support registered for ch341-uart
[    4.224871] ch341 1-1.3:1.0: ch341-uart converter detected
[    4.229121] usb 1-1.3: ch341-uart converter now attached to ttyUSB0
[    4.405302] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43430-sdio for chip BCM43430/1
[    4.405417] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
[    4.406232] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43430/1 wl0: Oct 23 2017 03:55:53 version 7.45.98.38 (r674442 CY) FWID 01-e58d219f
[    5.207614] uart-pl011 3f201000.serial: no DMA platform data
[    5.268265] zram: Added device: zram0
[    5.310343] zram0: detected capacity change from 0 to 629145600
[    5.389948] Adding 614396k swap on /dev/zram0.  Priority:75 extents:1 across:614396k SSFS
[    5.671747] zram: Added device: zram1
[    5.678249] zram1: detected capacity change from 0 to 629145600
[    5.823164] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[    5.823183] brcmfmac: power management disabled
[    5.917154] Adding 102396k swap on /var/swap.  Priority:-2 extents:1 across:102396k SSFS
[    5.952676] EXT4-fs (zram1): mounted filesystem with ordered data mode. Opts: (null)
[    6.243475] zram: Added device: zram2
[    6.248817] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup
[    6.249246] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    6.280444] zram2: detected capacity change from 0 to 524288000
[    6.429966] EXT4-fs (zram2): mounted filesystem with ordered data mode. Opts: (null)
[    6.871872] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[    7.868203] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xC5E1
[    9.725122] Bluetooth: Core ver 2.22
[    9.725187] NET: Registered protocol family 31
[    9.725191] Bluetooth: HCI device and connection manager initialized
[    9.725206] Bluetooth: HCI socket layer initialized
[    9.725213] Bluetooth: L2CAP socket layer initialized
[    9.725234] Bluetooth: SCO socket layer initialized
[    9.737372] Bluetooth: HCI UART driver ver 2.3
[    9.737383] Bluetooth: HCI UART protocol H4 registered
[    9.737438] Bluetooth: HCI UART protocol Three-wire (H5) registered
[    9.737576] Bluetooth: HCI UART protocol Broadcom registered
[    9.926827] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    9.926836] Bluetooth: BNEP filters: protocol multicast
[    9.926849] Bluetooth: BNEP socket layer initialized
[   11.761465] device eth0 entered promiscuous mode
[   11.762258] device lo entered promiscuous mode
[   11.762647] device wlan0 entered promiscuous mode
[   89.125460] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1363 (offset 0 size 270336 starting block 58511)
[   89.125477] Buffer I/O error on device zram1, logical block 58511
[   89.125494] Buffer I/O error on device zram1, logical block 58512
[   89.125502] Buffer I/O error on device zram1, logical block 58513
[   89.125509] Buffer I/O error on device zram1, logical block 58514
[   89.125517] Buffer I/O error on device zram1, logical block 58515
[   89.125527] Buffer I/O error on device zram1, logical block 58516
[   89.125534] Buffer I/O error on device zram1, logical block 58517
[   89.125541] Buffer I/O error on device zram1, logical block 58518
[   89.125549] Buffer I/O error on device zram1, logical block 58519
[   89.125556] Buffer I/O error on device zram1, logical block 58520
[   89.127551] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1365 (offset 0 size 1052672 starting block 91948)
[   89.129182] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1365 (offset 0 size 1765376 starting block 92204)
[   89.131414] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1366 (offset 0 size 1052672 starting block 92379)
[   89.133033] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1366 (offset 0 size 1495040 starting block 92635)
[   90.281448] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1367 (offset 0 size 360448 starting block 58578)
[   90.283640] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1368 (offset 0 size 1052672 starting block 92744)
[   90.285680] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1368 (offset 0 size 2101248 starting block 93000)
[   90.286729] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1368 (offset 0 size 2134016 starting block 93256)
[   90.287860] EXT4-fs warning (device zram1): ext4_end_bio:323: I/O error 10 writing to inode 1369 (offset 0 size 684032 starting block 93265)
[   90.390305] JBD2: Detected IO errors while flushing file data on zram1-8
[   90.390386] Aborting journal on device zram1-8.
[   90.390481] EXT4-fs error (device zram1): ext4_journal_check_start:61: Detected aborted journal
[   90.393499] EXT4-fs (zram1): Remounting filesystem read-only
[  130.242491] random: crng init done
[  130.242506] random: 7 urandom warning(s) missed due to ratelimiting

I use a Pi for Piehole and Zigbee2mqtt, separate from OH, and when the SD card failed I noticed several of the same errors you have. After pulling the SD card, reformatting, and flashing it with a new rasbian OS it worked again. I still replaced the SD card b/c who knows how long the reformatted one will last.

Hopefully you have a backup, that has been verified, to restore from. If not, you may be sh*t outta luck. Hate to be that guy, but truth is truth and if home automation (including all the work and time) is worth it you would have a backup.

Keep trying and hopefully I’m wrong about the SD card being bad. If so, MAKE A BACKUP ASAP b/c eventually it will fail.

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Hopefully not.
The error Read-only-file system only comes up if openhab is startet.
Homebridge and other services are working.
I will try to shutdown and reboot tomorrow. If that doesn´t work I will try to save the SD as an Image - format the card and play it back on.
If the backup succeds with veryfing the structure I will also give a new sd card a try.
I have a whole backup via FTP now - so my configs are not lost - but my homekit configuration on my pad will be :frowning:
I will let you know what happened. Maybe s.o. else has another tip?!

No it does not. You must have enabled it.
You can stop it with systemctl stop zram-config ( …disable… to not make it start again after reboot).
And while it says ‘read-only’ when it cannot sync its in-RAM changes to disk, that really is just sign of another problem. As you already found out your logs filled /var/log.

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Sorry. I just did an image install and thought I saw it enabled.

no luck with hard reboot. Filesystem is still read only - but only when openhab starts.
there are even missing some bindings.
now I´ll try the second thing:
writing same image on a new SD card - i don´t think that this will work.
Any suggestions?

this is the first error coming up

2019-12-22 15:08:01.646 [INFO ] [el.core.internal.ModelRepositoryImpl] - Loading model 'schalter.items'

2019-12-22 15:08:01.827 [INFO ] [el.core.internal.ModelRepositoryImpl] - Loading model 'fritzbox.items'

2019-12-22 15:08:01.914 [INFO ] [el.core.internal.ModelRepositoryImpl] - Loading model 'xiaomi.items'

2019-12-22 15:08:01.986 [INFO ] [el.core.internal.ModelRepositoryImpl] - Loading model 'dash.items'

2019-12-22 15:08:02.198 [INFO ] [el.core.internal.ModelRepositoryImpl] - Loading model 'astro.items'

2019-12-22 15:08:02.235 [INFO ] [el.core.internal.ModelRepositoryImpl] - Loading model 'system.items'

2019-12-22 15:08:02.265 [INFO ] [el.core.internal.ModelRepositoryImpl] - Loading model 'muellkalender.items'

2019-12-22 15:08:02.348 [INFO ] [el.core.internal.ModelRepositoryImpl] - Loading model 'amazonecho.items'

2019-12-22 15:08:03.456 [ERROR] [org.apache.felix.fileinstall        ] - Failed to install artifact: /usr/share/openhab2/addons/openhab-addons-2.5.0.kar

java.lang.RuntimeException: Error extracting kar file file:/usr/share/openhab2/addons/openhab-addons-2.5.0.kar into dir /var/lib/openhab2/tmp/kar/openhab-addons-2.5.0: Read-only file system

decided to reinstall.
it was not the SD!
I guess I´ve switched on the zram thing in openhabian-config and therefore the whole system got unstable locked by read-only due to safety.
4 days for setting it up with 6 homebridge instances included.

but what i can teach and advise: HAVE A BACKUP! I have one now!
merry christmas!

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