A fresh install of the 5.2.9 file system and 5.5.1 kernel. After 2 or 3 clean boots, ran into this on the serial connection:
Preceding this, there was a segmentation fault while trying to edit the .profile file using nano. The system kept running and seemed OK, but nano always produced a segmentation fault. Did a reboot from the command line is serial and got the above bootlog.
Starting version 241 Begin: Loading essential drivers ... done. Begin: Running /scripts/init-premount ... done. Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done. Begin: Running /scripts/local-premount ... done. Begin: Will now check root file system ... fsck from util-linux 2.33.1 [/sbin/fsck.ext3 (1) -- /dev/sda1] fsck.ext3 -a -C0 /dev/sda1 sata_rootfs: clean, 40782/262144 files, 303302/1048576 blocks done. [ 18.929530][ T200] EXT4-fs (sda1): mounting ext3 file system using the ext4 subsystem [ 18.947128][ T200] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) done. Begin: Running /scripts/local-bottom ... done. Begin: Running /scripts/init-bottom ... done. INIT: version 2.93 booting [info] Using makefile-style concurrent boot in runlevel S. [ ok ] Starting hotplug events dispatcher: systemd-udevd. [ ok ] Synthesizing the initial hotplug events (subsystems)...done. [....] Synthesizing the initial hotplug events (devices)...[ 20.342031][ T403] 8<--- cut here --- [ 20.345806][ T403] Unable to handle kernel paging request at virtual address 1017df80 [ 20.368746][ T403] pgd = (ptrval) [ 20.372165][ T403] [1017df80] *pgd=00000000 [ 20.376451][ T403] Internal error: Oops: 5 [#1] PREEMPT ARM [ 20.382132][ T403] Modules linked in: [ 20.385894][ T403] CPU: 0 PID: 403 Comm: udevadm Not tainted 5.5.1-kirkwood-tld-1 #1.0 [ 20.393929][ T403] Hardware name: Marvell Kirkwood (Flattened Device Tree) [ 20.400923][ T403] PC is at kernfs_seq_next+0x8/0x64 [ 20.405990][ T403] LR is at 0x1017df80 [ 20.409835][ T403] pc : [<802e6004>] lr : [<1017df80>] psr: a0000013 [ 20.416820][ T403] sp : 8200de28 ip : 8200ddf4 fp : 00000000 [ 20.422757][ T403] r10: 00000000 r9 : 8200c000 r8 : ee0ed4a8 [ 20.428697][ T403] r7 : 802e5ffc r6 : ee59bdc0 r5 : 00000000 r4 : ee0ed4a0 [ 20.435943][ T403] r3 : 80a10124 r2 : 66abbb58 r1 : ee0ed4a0 r0 : ee59bdc0 [ 20.443190][ T403] Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 20.451046][ T403] Control: 0005397f Table: 6ed9c000 DAC: 00000051 [ 20.457507][ T403] Process udevadm (pid: 403, stack limit = 0x(ptrval)) [ 20.464231][ T403] Stack: (0x8200de28 to 0x8200e000) [ 20.469300][ T403] de20: ee0ed4a0 00000000 ee59bdc0 8025f024 8200ded0 ee0ed4a0 [ 20.478212][ T403] de40: 00000000 00000001 ffffff9c 80271048 ee59bb00 81004228 8200df78 00020000 [ 20.487124][ T403] de60: 826ec840 ee568000 00000041 000041ed 00000000 00000004 00000000 0000001d [ 20.496037][ T403] de80: 00000000 8200c000 81004228 ee59bb00 ee59bdc0 eef577b0 ee56af68 8027af74 [ 20.504948][ T403] dea0: 5e49d257 66abbb58 1e65fb80 00000005 81004228 8200df78 00000001 ffffff9c [ 20.513860][ T403] dec0: 8200c000 00000000 7eccb8c4 8027123c eef577b0 ee56af68 e293b68b 00000006 [ 20.522771][ T403] dee0: 827b6031 8102b6bc 826ec850 ee565f68 ee59bdc0 00000109 ee59bb00 00000068 [ 20.531683][ T403] df00: 00000000 00000000 00000000 8200df10 00000ff0 7eccb840 00000ff0 827b6010 [ 20.540596][ T403] df20: ffffe000 8063a654 827b6010 00000ff0 00000ff0 66abbb58 00000005 826eca94 [ 20.549507][ T403] df40: 827b6000 00000000 00000005 00000002 ffffff9c 8027f060 00000000 66abbb58 [ 20.558419][ T403] df60: 81004228 00000005 000a0000 81004228 827b6000 8025fdb4 00020000 66ab0000 [ 20.567331][ T403] df80: 00000004 00000100 00000001 66abbb58 00a6e150 76f72968 00000008 00000142 [ 20.576243][ T403] dfa0: 80101208 80101000 00a6e150 76f72968 ffffff9c 7eccb840 000a0000 00000000 [ 20.585154][ T403] dfc0: 00a6e150 76f72968 00000008 00000142 7eccb840 00a85b70 00a769e0 7eccb8c4 [ 20.594066][ T403] dfe0: 76f3e000 7eccb6b0 0d08a900 76eb6250 60000010 ffffff9c 00000000 00000000 [ 20.602988][ T403] [<802e6004>] (kernfs_seq_next) from [<8025f024>] (do_dentry_open+0x2d4/0x330) [ 20.611901][ T403] [<8025f024>] (do_dentry_open) from [<80271048>] (path_openat+0xa20/0xbd8) [ 20.620462][ T403] [<80271048>] (path_openat) from [<8027123c>] (do_filp_open+0x3c/0x9c) [ 20.628677][ T403] [<8027123c>] (do_filp_open) from [<8025fdb4>] (do_sys_open+0x70/0xf4) [ 20.636891][ T403] [<8025fdb4>] (do_sys_open) from [<80101000>] (ret_fast_syscall+0x0/0x50) [ 20.645363][ T403] Exception stack(0x8200dfa8 to 0x8200dff0) [ 20.651130][ T403] dfa0: 00a6e150 76f72968 ffffff9c 7eccb840 000a0000 00000000 [ 20.660042][ T403] dfc0: 00a6e150 76f72968 00000008 00000142 7eccb840 00a85b70 00a769e0 7eccb8c4 [ 20.668952][ T403] dfe0: 76f3e000 7eccb6b0 0d08a900 76eb6250 [ 20.674719][ T403] Code: 12600020 e12fff1e e92d4070 e590e048 (e59ee000) [ 20.744457][ T403] ---[ end trace bf9130f3642c377c ]--- Segmentation fault failed. [ ok ] Waiting for /dev to be fully populated...done. [ ok ] Setting hostname to 'm300-2'...done. [ ok ] Activating swap:. [ 21.468247][ T570] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro [info] Will now check all file systems. fsck from util-linux 2.33.1 Checking all file systems. LABEL=sata_rootfs is mounted LABEL=data is not mounted [/sbin/fsck.ext4 (1) -- /mnt/data] fsck.ext4 -y -C0 /dev/sda2 e2fsck 1.44.5 (15-Dec-2018) data: clean, 11/715264 files, 68287/2860800 blocks [....] Done checking file systems. A log is being saved in /var/log/fsck/checkfs if that location[ ok ritable.. [ ok ] Cleaning up temporary files...[....] Cleaning /tmp...done. [ ok . [....] Will now mount local filesystems:[ 22.719341][ T853] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null) . ok [ ok ] Will now activate swapfile swap:done. [ ok ] Checking minimum space in /tmp...done. [ ok ] Cleaning up temporary files.... [ ok ] Starting Setting kernel variables: sysctl. [....] Initializing random number generator...[ 23.499024][ T1047] random: dd: uninitialized urandom read (512 bytes read) done. [....] Configuring network interfaces...Internet Systems Consortium DHCP Client 4.4.1 Copyright 2004-2018 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth0/18:03:73:41:dc:68 Sending on LPF/eth0/18:03:73:41:dc:68 Sending on Socket/fallback DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6 [ 25.579450][ C0] mv643xx_eth_port mv643xx_eth_port.0 eth0: link up, 100 Mb/s, full duplex, flow control disabled DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14 DHCPOFFER of 192.168.1.135 from 192.168.1.1 DHCPREQUEST for 192.168.1.135 on eth0 to 255.255.255.255 port 67 DHCPACK of 192.168.1.135 from 192.168.1.1 bound to 192.168.1.135 -- renewal in 35716 seconds. [ 31.673777][ T1128] NET: Registered protocol family 10 [ 31.680095][ T1128] Segment Routing with IPv6 done. [ ok ] Starting RPC port mapper daemon: rpcbind. [ ok ] Starting NFS common utilities: statd idmapd. [ ok ] Cleaning up temporary files.... INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting busybox' syslogd implementation : syslogdStarting /sbin/syslogd... 1338 (syslogd) . ok [....] Starting busybox' klogd implementation : klogdStarting /sbin/klogd... 1365 (klogd) . ok [....] Starting system message bus: dbus[ 35.671651][ T1395] random: dbus-daemon: uninitialized urandom read (12 bytes read) [ 35.695240][ T1395] random: dbus-daemon: uninitialized urandom read (12 bytes read) . ok [....] Starting Avahi mDNS/DNS-SD Daemon: avahi-daemon[ 35.822485][ T1418] random: avahi-daemon: uninitialized urandom read (4 bytes read) . ok [ ok ] Starting NFS common utilities: statd idmapd. [warn] Not starting NFS kernel daemon: no exports. ... (warning). [ ok ] Starting NTP server: ntpd. [....] Starting OpenBSD Secure Shell server: sshd[ 40.328610][ C0] random: crng init done [ 40.332736][ C0] random: 1 urandom warning(s) missed due to ratelimiting . ok [ ok ] Running local boot scripts (/etc/rc.local). Debian GNU/Linux 10 m300-2 ttyS0 m300-2 login:
Preceding this, there was a segmentation fault while trying to edit the .profile file using nano. The system kept running and seemed OK, but nano always produced a segmentation fault. Did a reboot from the command line is serial and got the above bootlog.