I have the open wrt snapshot running on a banana pi r4. it works perfectly fine for most times but sometimes it suddently stops working and unmounts /overlay directory somehow which makes then luci app stop working and wifi also stops working. only ethernet functions normally after that. Important to note this gets fixed when i restart the router and the modem
this is what i see when i do logread
root@OpenWrt:~# logread | grep err
Thu Jan 1 00:00:14 1970 kern.info kernel: [ 0.014284] /soc/interrupt-controller@c000000: Fixed dependency cycle(s) with /soc/interrupt-controller@c000000
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 0.069452] mtk-xsphy soc:xphy@11e10000: failed to get ref_clk(id-1)
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 0.070310] /soc/pcie@11290000: Failed to get clk index: 0 ret: -517
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 0.070319] mtk-pcie-gen3 11290000.pcie: failed to get clocks
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 0.070426] /soc/pcie@11300000: Failed to get clk index: 0 ret: -517
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 0.070434] mtk-pcie-gen3 11300000.pcie: failed to get clocks
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 0.070548] /soc/pcie@11310000: Failed to get clk index: 0 ret: -517
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 0.070556] mtk-pcie-gen3 11310000.pcie: failed to get clocks
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 1.172227] OF: Bad cell count for /soc/spi@11007000/spi_nand@0/partitions
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 1.179156] OF: Bad cell count for /soc/spi@11007000/spi_nand@0/partitions
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 2.176648] OF: Bad cell count for /soc/spi@11007000/spi_nand@0/partitions
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 2.189523] OF: Bad cell count for /soc/spi@11007000/spi_nand@0/partitions
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 2.360554] mtk-cpufreq mtk-cpufreq: failed to initialize dvfs info for cpu0
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 2.792714] mtk-pcie-gen3 11280000.pcie: PCIe link down, current LTSSM state: detect.quiet (0x1)
Thu Jan 1 00:00:14 1970 kern.warn kernel: [ 2.801514] mtk-pcie-gen3: probe of 11280000.pcie failed with error -110
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 3.172722] mtk-pcie-gen3 11290000.pcie: PCIe link down, current LTSSM state: detect.quiet (0x1)
Thu Jan 1 00:00:14 1970 kern.warn kernel: [ 3.181503] mtk-pcie-gen3: probe of 11290000.pcie failed with error -110
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 5.424171] mtk_soc_eth 15100000.ethernet: generated random MAC address 65:74:68:25:64:00
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 12.042849] crypto-safexcel 15600000.crypto: can't request region for resource [mem 0x15600000-0x1577ffff]
Thu Jan 1 00:00:14 1970 kern.err kernel: [ 12.052505] crypto-safexcel 15600000.crypto: failed to get resource
Thu Jan 1 00:00:14 1970 kern.warn kernel: [ 12.058778] crypto-safexcel: probe of 15600000.crypto failed with error -16
Thu Jan 1 00:00:25 1970 daemon.err procd: Got unexpected signal 1
Thu Jan 1 00:00:28 1970 daemon.err odhcp6c[3194]: Failed to send RS (Address not available)
Thu Jan 1 00:00:29 1970 daemon.err odhcp6c[3194]: Failed to send SOLICIT message to ff02::1:2 (Address not available)
Thu Jan 1 00:00:29 1970 daemon.warn odhcpd[2156]: No default route present, overriding ra_lifetime to 0!
Thu Jan 1 00:00:30 1970 daemon.err odhcp6c[3194]: Failed to send SOLICIT message to ff02::1:2 (Address not available)
Df no longer shows /overlay
root@OpenWrt:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 2012024 26444 1985580 1% /
tmpfs 2012024 548 2011476 0% /tmp
tmpfs 512 0 512 0% /dev