This doesn't happen every time a boot is attempted, but very frequently. Log below:
[ 15.024548] Loaded X.509 cert 'Canonical Ltd. Live Patch Signing: 14df34d1a87cf37625abec039ef2bf521249b969'
[ 15.038870] Loaded X.509 cert 'Canonical Ltd. Kernel Module Signing: 88f752e560a1e0737e31163a466ad7b70a850c19'
[ 15.048759] zswap: loaded using pool lzo/zbud
[ 15.053091] Key type ._fscrypt registered
[ 15.056452] Key type .fscrypt registered
[ 15.060276] GPT:Primary header thinks Alt. header is not at the end of the disk.
[ 15.060376] Key type fscrypt-provisioning registered
[ 15.067784] GPT:7340031 != 62333951
[ 15.067790] GPT:Alternate GPT header not at the end of the disk.
[ 15.082195] GPT:7340031 != 62333951
[ 15.085655] GPT: Use GNU Parted to correct GPT errors.
[ 15.089268] Key type encrypted registered
[ 15.090848] mmcblk0: p1 p12 p13 p14 p15
[ 15.094794] AppArmor: AppArmor sha1 policy hashing enabled
[ 15.104197] ima: No TPM chip found, activating TPM-bypass!
[ 15.109690] ima: Allocated hash algorithm: sha1
[ 15.114191] ima: No architecture policies found
[ 15.118816] evm: Initialising EVM extended attributes:
[ 15.123787] evm: security.selinux
[ 15.127086] evm: security.SMACK64
[ 15.130380] evm: security.SMACK64EXEC
[ 15.134030] evm: security.SMACK64TRANSMUTE
[ 15.138108] evm: security.SMACK64MMAP
[ 15.141755] evm: security.apparmor
[ 15.145142] evm: security.ima
[ 15.148081] evm: security.capability
[ 15.151656] evm: HMAC attrs: 0x1
[ 18.062579] Freeing unused kernel memory: 308K
[ 18.071639] ------------[ cut here ]------------
[ 18.075533] riscv/mm: Found insecure W+X mapping at address (____ptrval____)/0xffffffdff8000000
[ 18.084242] WARNING: CPU: 2 PID: 1 at arch/riscv/mm/ptdump.c:200 note_page+0x24c/0x252
[ 18.092116] Modules linked in:
[ 18.095142] CPU: 2 PID: 1 Comm: swapper/0 Not tainted 5.8.0-29-generic #31~20.04.1-Ubuntu
[ 18.103320] epc: ffffffe00020891a ra : ffffffe00020891a sp : ffffffe1f5bebb30
[ 18.110425] gp : ffffffe0013206b8 tp : ffffffe1f5be6780 t0 : ffffffe001336fa0
[ 18.117650] t1 : ffffffe001336f38 t2 : 00000001fecd4000 s0 : ffffffe1f5bebb80
[ 18.124859] s1 : ffffffe1f5bebe10 a0 : 0000000000000053 a1 : 0000000200000020
[ 18.132067] a2 : ffffffe1f5beb870 a3 : 0000000000000000 a4 : ffffffe0012200a0
[ 18.139277] a5 : ffffffe0012200a0 a6 : 00000000000000c6 a7 : ffffffe0006ebfee
[ 18.146485] s2 : ffffffdff8001000 s3 : 0000000000000000 s4 : 0000000000000004
[ 18.153698] s5 : 0000000000000000 s6 : 0000000000000000 s7 : ffffffe1f5bebd20
[ 18.160917] s8 : ffffffdff8001000 s9 : ffffffe001322148 s10: ffffffdff8002000
[ 18.168116] s11: ffffffe000c16e20 t3 : 000000000003cca8 t4 : 000000000003cca8
[ 18.175323] t5 : 0000000000000000 t6 : ffffffe001331462
[ 18.180605] status: 0000000200000120 badaddr: ffffffe1f5bebb30 cause: 0000000000000003
[ 18.188525] ---[ end trace ecc2ef275d977b46 ]---
[ 18.193629] Checked W+X mappings: failed, 513 W+X pages found
[ 18.198865] Run /init as init process
Loading, please wait...
Starting version 245.4-4ubuntu3.7
[ 18.683096] Unable to handle kernel paging request at virtual address 0000005f8141b42c
[ 18.690315] Oops [#1]
[ 18.692526] Modules linked in: phylink i2c_ocores(+)
[ 18.697489] CPU: 0 PID: 147 Comm: systemd-udevd Tainted: G W 5.8.0-29-generic #31~20.04.1-Ubuntu
[ 18.707566] epc: ffffffdf8141b42c ra : ffffffe000266012 sp : ffffffe1f4b3bd20
[ 18.714668] gp : ffffffe0013206b8 tp : ffffffe1f46f0000 t0 : 0000000000000040
[ 18.721931] t1 : 0000000000000000 t2 : 000000000000000a s0 : ffffffe1f4b3bda0
[ 18.729123] s1 : 0000000000000000 a0 : 0000000000000003 a1 : ffffffe1f4a39018
[ 18.736314] a2 : 0000000000010000 a3 : 0000000000000000 a4 : ffffffdf8141b42c
[ 18.739498] macb 10090000.ethernet: Registered clk switch 'sifive-gemgxl-mgmt'
[ 18.743528] a5 : 0000000000000003 a6 : ffffffe1f5603d98 a7 : ffffffe1f5603dc0
[ 18.743533] s2 : 0000000000000003 s3 : ffffffe1f4b3bdac s4 : 0000000000000001
[ 18.743537] s5 : ffffffe0012f02c8 s6 : ffffffe0012f02f0 s7 : 0000000000000002
[ 18.743542] s8 : ffffffe1f5d46000 s9 : 0000002ab15da010 s10: 0000000000000002
[ 18.743546] s11: ffffffe1f35a3680 t3 : 0000000000000002 t4 : 0000000000000402
[ 18.743553] t5 : ffffffe001220348 t6 : ffffffe001220350
[ 18.750909] macb 10090000.ethernet: GEM doesn't support hardware ptp.
[ 18.757942] status: 0000000200000100 badaddr: 0000005f8141b42c cause: 000000000000000c
[ 18.757998] ---[ end trace ecc2ef275d977b47 ]---
[ 18.765916] libphy: MACB_mii_bus: probed
[ 18.772384] Kernel panic - not syncing: Fatal exception in interrupt
[ 18.821245] SMP: stopping secondary CPUs
[ 18.825167] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.8.0-29-generic 5.8.0-29.31~20.04.1
ProcVersionSignature: User Name 5.8.0-29.31~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-29-generic riscv64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: riscv64
CasperMD5CheckResult: skip
Date: Thu Jul 1 16:20:05 2021
ProcCpuinfoMinimal:
processor : 3
hart : 3
isa : rv64imafdc
mmu : sv39
uarch : sifive,bullet0
ProcEnviron:
TERM=vt220
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
SourcePackage: linux-riscv-5.8
UpgradeStatus: No upgrade log present (probably fresh install)
---
ProblemType: Bug
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 May 27 15:16 seq
crw-rw---- 1 root audio 116, 33 May 27 15:16 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: riscv64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lspci-vt: -[0000:00]-
Lsusb: Error: command ['lsusb'] failed with exit code 1:
Lsusb-t:
Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
Package: linux-riscv-5.8 (not installed)
PciMultimedia:
ProcCpuinfoMinimal:
processor : 3
hart : 3
isa : rv64imafdc
mmu : sv39
uarch : sifive,bullet0
ProcEnviron:
TERM=screen
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro earlycon
ProcVersionSignature: Ubuntu 5.8.0-29.31~20.04.1-generic 5.8.18
RelatedPackageVersions:
linux-restricted-modules-5.8.0-29-generic N/A
linux-backports-modules-5.8.0-29-generic N/A
linux-firmware 1.187.14
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
Tags: focal uec-images
Uname: Linux 5.8.0-29-generic riscv64
UnreportableReason: This report is about a package that is not installed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip floppy lxd netdev plugdev sudo video
_MarkForUpload: False
acpidump:
apport information