Instabilities/crashes due to kernel update 5.4.51

Start with the 5.4.51 panic trace and the DKMS make.log under /var/lib/dkms/xtables-addons/3.2/build/, then inspect the precompiled tools in /usr/src/linux-headers-*/scripts. Compare their architecture with the Raspberry Pi 3 armv7l system and check whether the xtables-addons build and kernel instability can be reproduced; done requires a confirmed cause and a validated fix or package change.

Describe the bug

On an originally stable system (2 voluntary restarts in 20 months).

• Instabilities/crashes due to migration from "4.19.75-v7+ #1270" to successive versions of kernel 5.4.51 (1.20200717-1 and 1.20200723-1).
• Difficulties installing packages requiring kernel headers

---

Unable to compile kernel modules vs. kernel headers:

Describe the bug

I use the xtables-addons-common package (v3.2-1 from the repository) to complete my server's iptables firewall.
This important package requires the current kernel headers. However, multiple errors appear when compiling it
using dkms (xtables-addons-dkms package).

To reproduce

$ sudo apt-get install xtables-addons-common
or
$ dkms install -m xtables-addons -k 4.19.75-v7+ -v 3.2
...
run-parts: executing /etc/kernel/header_postinst.d/dkms 5.4.51-v7+.
Error!  Build of xt_ACCOUNT.ko failed for: 5.4.51-v7+ (armv7l)
Consult the make.log in the build directory
/var/lib/dkms/xtables-addons/3.2/build/ for more information.

In the make.log file I distinguish 2 types of errors:

Kernel independent errors (4.19.75 and 5.4.51) in the precompiled binaries in the /srcripts/ directory .

To reproduce

./scripts/recordmcount: Exec format error
./scripts/basic/fixdep: Exec format error
./scripts/basic/mod/modpost: Exec format error
./scripts/basic/mod/mk_elfconfig: Exec format error

If manual execution is attempted:

/usr/src/linux-headers-4.19.75+ $ scripts/basic/fixdep
-bash: scripts/basic/fixdep: impossible d'exécuter le fichier binaire : Erreur de format pour exec()

I thought at first I'd have to recompile the kernel. In fact It was a waste of time since they are actually binaries that don't match the platform of the Raspberry Pi.

Tests performed in /usr/src/linux-headers-*/

test on binary from the raspberrypi-kernel-headers package:

$ file scripts/mod/mk_elfconfig
mk_elfconfig: ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, BuildID[sha1]=e8f88d80903552cea01900283c192455de82ddba, not stripped

test on compiled cross binary:

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- scripts
$ file scripts/mod/mk_elfconfig
scripts/mod/mk_elfconfig: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=d9a2cb16f1ef2700a3726e8105cf15f3961e40b4, not stripped

Expected behaviour

test binary compiled on site:

$ sudo make scripts
$ file scripts/mod/mk_elfconfig
scripts/mod/mk_elfconfig: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 3.2.0, BuildID[sha1]=c658f0306135e453aaa4f5151c93e5d7aca79f21b, not stripped

Actual behaviour

• the make command does not take into account the destination platform
• the precompiled binaries of the package are not executable
• the documentation does not contain (to my knowledge ?) any reference to the make scripts command though useful because it could avoid getting lost in useless compilations.
  (see https://www.raspberrypi.org/documentation/linux/kernel/building.md).

Errors specific to version 5.4.51:

Actual behaviour

The xtables-addons v3.2 module sources are incompatible with 5.x kernels.
According to https://sourceforge.net/p/xtables-addons/xtables-addons/commit_browser, the commit that provides this support
was integrated in version 3.6 in November 2019.

I decided to install via dpkg the .debs from Debian Bullseye repositories (the package doesn't seem to have been integrated into Buster?): https://packages.debian.org/bullseye/xtables-addons-common.
Dkms agrees to compile but I do not guarantee the results.

Expected behaviour

If kernel version 5.4.x is to be deployed in repositories then the xtables packages should be updated.

---

5.4.51 Kernel related instabilities

Describe the bug

The system became very unstable after the reboot:

• very frequent crashes, sometimes even without having time to do ssh login

• maximum uptime of about 40 minutes

• bad evaluation of the CPU loads obtained with the uptime command (~4 for a CPU at rest)

• crazy processes; Example of Gunicorn log:

  [2020-07-25 11:11:39 +0200] [736] [INFO] Listening at: unix:/run/umatrix.sock (736)
  [2020-07-25 11:11:39 +0200] [736] [INFO] Using worker: sync
  [2020-07-25 11:11:39 +0200] [1127] [INFO] Booting worker with pid: 1127
  [2020-07-25 11:11:43 +0200] [1165] [INFO] Booting worker with pid: 1165
  [2020-07-25 11:42:45 +0200] [740] [INFO] Starting gunicorn 19.9.0
  [2020-07-25 11:42:46 +0200] [740] [INFO] Listening at: unix:/run/umatrix.sock (740)
  [2020-07-25 11:42:46 +0200] [740] [INFO] Using worker: sync
  [2020-07-25 11:42:46 +0200] [1124] [INFO] Booting worker with pid: 1124
  [2020-07-25 11:43:34 +0200] [740] [INFO] Handling signal: term
  [2020-07-25 11:43:34 +0200] [1124] [INFO] Worker exiting (pid: 1124)
  [2020-07-25 11:43:34 +0200] [740] [INFO] Shutting down: Master
  ... and so on for hundreds of loops...

• non-startable processes via systemd

• process persistent in "S - interruptible sleep" in htop after a sigkill/sigterm

At first I thought there were regressions in the updated packages since the last reboot in October 2019.

To reproduce

Do not know.

Things tested:

• disabling most of the daemons,
• hardware watchdog deactivation,
• unloading and uninstalling the kernel modules brought by xtables-addons-common,
• testing the integrity of the disks and the sdcard,
• (cross)recompiling the kernel 5.4.51,
• wiping and reinstalling raspberrypi-kernel-headers, raspberrypi-bootloader raspberrypi-kernel packages from the repositories.

No improvement was seen between each of these tests.

Below you will find the only kernel panic stacktraces I was able to retrieve;
I'm at your disposal for any other logs that I could bring in extra data.

Actual behaviour

• I had to switch back to 4.19.75-v7+ by manually installing the .debs from the https://archive.raspberrypi.org/debian/pool/main/r/raspberrypi-firmware/ repository.
  (Thank you for keeping all versions of these packages, I don't know if there is a method to get them back with apt ?).
• Old packages are now hold in apt to avoid having to baby-sit my Rpi for 2 days :p
• The system is now stable again.

---

System

• Model /proc/device-tree/model: Raspberry Pi 3 Model B Rev 1.2
• Starting kernel: Linux bbox-NAS 4.19.75-v7+ #1270 SMP Tue Sep 24 18:45:11 BST 2019 armv7l GNU/Linux
• System: Raspbian GNU/Linux 10 (buster)
• CPU /proc/cpuinfo:

    processor       : 0
    model name      : ARMv7 Processor rev 4 (v7l)
    BogoMIPS        : 38.40
    Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
    CPU implementer : 0x41
    CPU architecture: 7
    CPU variant     : 0x0
    CPU part        : 0xd03
    CPU revision    : 4

• Starting firmware vcgencmd version

    Sep 24 2019 17:37:47
    Copyright (c) 2012 Broadcom
    version 6820edeee4ef3891b95fc01cf02a7abd7ca52f17 (clean) (release) (start_cd)

• cmdline.txt:
  console=tty1 root=PARTUUID=XXXXXXX-XX rootfstype=ext4 elevator=deadline fsck.repair=yes rootdelay rootwait quiet
• config.txt (only modified settings):

    ...
    # Custom #
    # disable audio
    dtparam=audio=off

    # Overclocking
    # cf https://www.raspberrypi.org/documentation/configuration/config-txt/overclocking.md
    # Rpi 3
    # default 1200
    arm_freq=1100
    # default: 600
    arm_freq_min=400

    # Additional overlays and parameters are documented /boot/overlays/README
    # default Rpi 3: 400
    core_freq=300
    # Rpi3 : core_freq peut passer à 450 (default)/500
    sdram_freq=450
    gpu_mem=8

    # Disable the PWR LED.
    dtparam=pwr_led_trigger=none
    dtparam=pwr_led_activelow=off

    # Disable the ACT LED.
    dtparam=act_led_trigger=none
    dtparam=act_led_activelow=off

    enable_uart=1

    # activating the hardware watchdog
    dtparam=watchdog=on

    # Disable wifi
    dtoverlay=disable-wifi

Logs

juil. 25 07:05:05 bbox-NAS BUG: FP instruction issued in kernel mode with FP unit disabled
juil. 25 07:05:05 bbox-NAS Internal error: Oops - undefined instruction: 0 [#1] SMP ARM
juil. 25 07:05:05 bbox-NAS Modules linked in: tun hci_uart btbcm bluetooth ecdh_generic ecc brcmfmac sg brcmutil sha256_generic libsha256 uas c
juil. 25 07:05:05 bbox-NAS CPU: 1 PID: 117 Comm: kworker/1:2 Tainted: G         C O      5.4.51-v7+ #1327
juil. 25 07:05:05 bbox-NAS Hardware name: BCM2835
juil. 25 07:05:05 bbox-NAS Workqueue: events_power_efficient htable_gc [xt_hashlimit]
juil. 25 07:05:05 bbox-NAS PC is at __do_softirq+0x37a/0x418
juil. 25 07:05:05 bbox-NAS LR is at walk_stackframe+0x24/0x40
juil. 25 07:05:05 bbox-NAS pc : [<80102672>]    lr : [<8010cfcc>]    psr: b01a0273
juil. 25 07:05:05 bbox-NAS sp : b6da5df4  ip : b6da5e08  fp : b6da5e04
juil. 25 07:05:05 bbox-NAS r10: 00000000  r9 : be85a040  r8 : be85a000
juil. 25 07:05:05 bbox-NAS r7 : 000023ef  r6 : 8010bb8c  r5 : b6da5e2c  r4 : b6da5e34
juil. 25 07:05:05 bbox-NAS r3 : 00000002  r2 : b6da5e2c  r1 : b6da5e2c  r0 : 00000000
juil. 25 07:05:05 bbox-NAS Flags: NzCV  IRQs on  FIQs off  Mode SVC_32  ISA Thumb  Segment user
juil. 25 07:05:05 bbox-NAS Control: 10c5383d  Table: 30ac406a  DAC: 00000055
juil. 25 07:05:05 bbox-NAS Process kworker/1:2 (pid: 117, stack limit = 0xdc9b4147)
juil. 25 07:05:05 bbox-NAS Stack: (0xb6da5df4 to 0xb6da6000)
juil. 25 07:05:05 bbox-NAS 5de0:                                              b6da5e2c b6da5e24 b6da5e08
juil. 25 07:05:05 bbox-NAS 5e00: 8010cfcc 8010bb98 8010bbbc 80d04f48 00000000 be595300 b6da5e5c b6da5e28
juil. 25 07:05:05 bbox-NAS 5e20: 8010bc18 8010cfb4 8010bc18 00000002 00000000 b6da5e5c b6da5e28 8020b290
juil. 25 07:05:05 bbox-NAS 5e40: 8010bbbc 2bac5c60 80ca0b10 801259f4 b6da5e84 b6da5e60 8020b290 8010bbc8
juil. 25 07:05:05 bbox-NAS 5e60: 00000000 b6da4000 00000200 be595300 000023ef be85a000 b6da5e9c b6da5e88
juil. 25 07:05:05 bbox-NAS 5e80: 801259f4 8020b210 80d03d00 00000000 b6da5eac b6da5ea0 808d2e40 8012598c
juil. 25 07:05:05 bbox-NAS 5ea0: b6da5ee4 b6da5eb0 7f127220 808d2e14 8013bd80 be86303c 8013c5fc be85a04c
juil. 25 07:05:05 bbox-NAS 5ec0: b8273580 be595300 be598900 00000000 00000040 00000000 b6da5efc b6da5ee8
juil. 25 07:05:05 bbox-NAS 5ee0: 7f127670 7f127160 be85a04c b8273580 b6da5f34 b6da5f00 8013bd94 7f127658
juil. 25 07:05:05 bbox-NAS 5f00: be595300 be595300 00000008 be595300 b8273594 00000008 be595318 80d03d00
juil. 25 07:05:05 bbox-NAS 5f20: b6da4038 b8273580 b6da5f7c b6da5f38 8013c5fc 8013bc24 b6da5f5c b6da5f48
juil. 25 07:05:05 bbox-NAS 5f40: 808d2f54 8020b210 80d03d00 80d993f7 b6da5f7c b93ef2c0 b6cc2d80 00000000
juil. 25 07:05:05 bbox-NAS 5f60: b8273580 8013c5a8 b9947e74 b93ef2dc b6da5fac b6da5f80 801429e0 8013c5b4
juil. 25 07:05:05 bbox-NAS 5f80: 80104648 b6cc2d80 801428a4 00000000 00000000 00000000 00000000 00000000
juil. 25 07:05:05 bbox-NAS 5fa0: 00000000 b6da5fb0 801010ac 801428b0 00000000 00000000 00000000 00000000
juil. 25 07:05:05 bbox-NAS 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
juil. 25 07:05:05 bbox-NAS 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
juil. 25 07:05:05 bbox-NAS Backtrace:
juil. 25 07:05:05 bbox-NAS [<8010bb8c>] (save_return_addr) from [<8010cfcc>] (walk_stackframe+0x24/0x40)
juil. 25 07:05:05 bbox-NAS [<8010cfa8>] (walk_stackframe) from [<8010bc18>] (return_address+0x5c/0x88)juil. 25 07:05:05 bbox-NAS  r6:be595300 r5:00000000 r4:80d04f48 r3:8010bbbc
juil. 25 07:05:05 bbox-NAS [<8010bbbc>] (return_address) from [<8020b290>] (trace_hardirqs_on+0x8c/0x174)
juil. 25 07:05:05 bbox-NAS  r5:801259f4 r4:80ca0b10
juil. 25 07:05:05 bbox-NAS [<8020b204>] (trace_hardirqs_on) from [<801259f4>] (__local_bh_enable_ip+0x74/0xd0)
juil. 25 07:05:05 bbox-NAS  r8:be85a000 r7:000023ef r6:be595300 r5:00000200 r4:b6da4000 r3:00000000
juil. 25 07:05:05 bbox-NAS [<80125980>] (__local_bh_enable_ip) from [<808d2e40>] (_raw_spin_unlock_bh+0x38/0x3c)
juil. 25 07:05:05 bbox-NAS  r5:00000000 r4:80d03d00
juil. 25 07:05:05 bbox-NAS [<808d2e08>] (_raw_spin_unlock_bh) from [<7f127220>] (htable_selective_cleanup+0xcc/0xe4 [xt_hashlimit])
juil. 25 07:05:05 bbox-NAS [<7f127154>] (htable_selective_cleanup [xt_hashlimit]) from [<7f127670>] (htable_gc+0x24/0x50 [xt_hashlimit])
juil. 25 07:05:05 bbox-NAS  r10:00000000 r9:00000040 r8:00000000 r7:be598900 r6:be595300 r5:b8273580
juil. 25 07:05:05 bbox-NAS  r4:be85a04c
juil. 25 07:05:05 bbox-NAS [<7f12764c>] (htable_gc [xt_hashlimit]) from [<8013bd94>] (process_one_work+0x17c/0x4b4)
juil. 25 07:05:05 bbox-NAS  r5:b8273580 r4:be85a04c
juil. 25 07:05:05 bbox-NAS [<8013bc18>] (process_one_work) from [<8013c5fc>] (worker_thread+0x54/0x5b4)
juil. 25 07:05:05 bbox-NAS  r10:b8273580 r9:b6da4038 r8:80d03d00 r7:be595318 r6:00000008 r5:b8273594
juil. 25 07:05:05 bbox-NAS  r4:be595300
juil. 25 07:05:05 bbox-NAS [<8013c5a8>] (worker_thread) from [<801429e0>] (kthread+0x13c/0x168)
juil. 25 07:05:05 bbox-NAS  r10:b93ef2dc r9:b9947e74 r8:8013c5a8 r7:b8273580 r6:00000000 r5:b6cc2d80
juil. 25 07:05:05 bbox-NAS  r4:b93ef2c0
juil. 25 07:05:05 bbox-NAS [<801428a4>] (kthread) from [<801010ac>] (ret_from_fork+0x14/0x28)
juil. 25 07:05:05 bbox-NAS Exception stack(0xb6da5fb0 to 0xb6da5ff8)
juil. 25 07:05:05 bbox-NAS 5fa0:                                     00000000 00000000 00000000 00000000
juil. 25 07:05:05 bbox-NAS 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
juil. 25 07:05:05 bbox-NAS 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
juil. 25 07:05:05 bbox-NAS  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:801428a4
juil. 25 07:05:05 bbox-NAS  r4:b6cc2d80 r3:80104648
juil. 25 07:05:05 bbox-NAS Code: 1283 3584 1582 8bfc (eb00) 3cff
juil. 25 07:05:05 bbox-NAS ---[ end trace 26d3f486c3e7ae66 ]---




[sam. juil. 25 11:13:05 2020] xt_geoip: loading out-of-tree module taints kernel.
[sam. juil. 25 11:18:02 2020] 8<--- cut here ---
[sam. juil. 25 11:18:02 2020] Unable to handle kernel paging request at virtual address 000a801c
[sam. juil. 25 11:18:02 2020] pgd = ed7e1718
[sam. juil. 25 11:18:02 2020] [000a801c] *pgd=1bdc2835, *pte=00000000, *ppte=00000000
[sam. juil. 25 11:18:02 2020] Internal error: Oops: 80000007 [#1] SMP ARM
[sam. juil. 25 11:18:02 2020] Modules linked in: nf_log_ipv6 xt_TARPIT(O) nf_log_ipv4 nf_log_common xt_LOG xt_geoip(O) tun hci_uart btbcm bluetooth ecdh_generic ecc rfkill sg uas bcm2835_codec(C) bcm2835_v4l2(C) bcm2835_isp(C) v4l2_mem2mem bcm2835_mmal_vchiq(C) videobuf2_vmalloc videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_common raspberrypi_hwmon videodev mc vc_sm_cma(C) uio_pdrv_genirq uio fixed ip6t_REJECT nf_reject_ipv6 xt_hl ip6_tables ip6t_rt ipt_REJECT nf_reject_ipv4 xt_multiport ts_bm nft_limit xt_string xt_comment xt_hashlimit xt_owner xt_limit xt_addrtype xt_tcpudp xt_conntrack nft_compat nft_counter nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack nf_defrag_ipv4 nf_tables nfnetlink ip_tables x_tables ipv6 nf_defrag_ipv6
[sam. juil. 25 11:18:02 2020] CPU: 3 PID: 1512 Comm: htop Tainted: G         C O      5.4.51-v7+ #1
[sam. juil. 25 11:18:02 2020] Hardware name: BCM2835
[sam. juil. 25 11:18:02 2020] PC is at 0xa801c
[sam. juil. 25 11:18:02 2020] LR is at mntput+0x34/0x38
[sam. juil. 25 11:18:02 2020] pc : [<000a801c>]    lr : [<803089ac>]    psr: 60000193
[sam. juil. 25 11:18:02 2020] sp : 9bdcdeb8  ip : 9bdcdea8  fp : 9bdcdef4
[sam. juil. 25 11:18:02 2020] r10: 40000010  r9 : ab1566c8  r8 : ab0a25d8
[sam. juil. 25 11:18:02 2020] r7 : b8beb190  r6 : ab1566c8  r5 : 802e4448  r4 : 9bd06f00
[sam. juil. 25 11:18:02 2020] r3 : 4314fdb1  r2 : 4314fdb1  r1 : 00000001  r0 : 80daa80c
[sam. juil. 25 11:18:02 2020] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[sam. juil. 25 11:18:02 2020] Control: 10c5383d  Table: 1bdc806a  DAC: 00000055
[sam. juil. 25 11:18:02 2020] Process htop (pid: 1512, stack limit = 0x4b0f954e)
[sam. juil. 25 11:18:02 2020] Stack: (0x9bdcdeb8 to 0x9bdce000)
[sam. juil. 25 11:18:02 2020] dea0:                                                       00000000 00000000
[sam. juil. 25 11:18:02 2020] dec0: 8010cce8 9bd06f08 9bd06f00 00000000 a6afc230 a6afbd00 a6afc254 80dab2c0
[sam. juil. 25 11:18:02 2020] dee0: 9bd06f00 00000006 9bdcdf04 9bdcdef8 802e459c 802e4358 9bdcdf2c 9bdcdf08
[sam. juil. 25 11:18:02 2020] df00: 801408e4 802e4590 9bdcc000 9bdcdfb0 80d04f48 80d04f4c 00000004 801011c4
[sam. juil. 25 11:18:02 2020] df20: 9bdcdfac 9bdcdf30 8010cce8 80140838 9bdcdf4c 9bdcdf40 802e4b1c 802e4a30
[sam. juil. 25 11:18:02 2020] df40: 9bdcdf6c 9bdcdf50 802ddeb8 802e4b0c 0000868f 00000004 b89af700 00000000
[sam. juil. 25 11:18:02 2020] df60: 9bdcdf94 9bdcdf70 80304e0c 802dde54 0000042f 001b1c28 5f1bf8cb 4314fdb1
[sam. juil. 25 11:18:02 2020] df80: 801011c4 0000042f 001b1c28 5f1bf8cb 00000006 801011c4 9bdcc000 00000006
[sam. juil. 25 11:18:02 2020] dfa0: 00000000 9bdcdfb0 80101034 8010c884 00000000 00020000 2d9c5d00 2d9c5d00
[sam. juil. 25 11:18:02 2020] dfc0: 0000042f 001b1c28 5f1bf8cb 00000006 00221170 7ea5d518 00221170 001b2378
[sam. juil. 25 11:18:02 2020] dfe0: 00001003 7ea5c8f8 000266e4 76e0ef74 60000010 00000004 00000000 00000000
[sam. juil. 25 11:18:02 2020] Backtrace:
[sam. juil. 25 11:18:02 2020] [<802e434c>] (__fput) from [<802e459c>] (____fput+0x18/0x1c)
[sam. juil. 25 11:18:02 2020]  r10:00000006 r9:9bd06f00 r8:80dab2c0 r7:a6afc254 r6:a6afbd00 r5:a6afc230
[sam. juil. 25 11:18:02 2020]  r4:00000000
[sam. juil. 25 11:18:02 2020] [<802e4584>] (____fput) from [<801408e4>] (task_work_run+0xb8/0xdc)
[sam. juil. 25 11:18:02 2020] [<8014082c>] (task_work_run) from [<8010cce8>] (do_work_pending+0x470/0x4f4)
[sam. juil. 25 11:18:02 2020]  r9:801011c4 r8:00000004 r7:80d04f4c r6:80d04f48 r5:9bdcdfb0 r4:9bdcc000
[sam. juil. 25 11:18:02 2020] [<8010c878>] (do_work_pending) from [<80101034>] (slow_work_pending+0xc/0x20)
[sam. juil. 25 11:18:02 2020] Exception stack(0x9bdcdfb0 to 0x9bdcdff8)
[sam. juil. 25 11:18:02 2020] dfa0:                                     00000000 00020000 2d9c5d00 2d9c5d00
[sam. juil. 25 11:18:02 2020] dfc0: 0000042f 001b1c28 5f1bf8cb 00000006 00221170 7ea5d518 00221170 001b2378
[sam. juil. 25 11:18:02 2020] dfe0: 00001003 7ea5c8f8 000266e4 76e0ef74 60000010 00000004
[sam. juil. 25 11:18:02 2020]  r10:00000006 r9:9bdcc000 r8:801011c4 r7:00000006 r6:5f1bf8cb r5:001b1c28
[sam. juil. 25 11:18:02 2020]  r4:0000042f
[sam. juil. 25 11:18:02 2020] Code: bad PC value
[sam. juil. 25 11:18:02 2020] ---[ end trace affdd25bfd82506c ]---




Jul 21 13:27:46 localhost kernel: [ 2846.081278] 8<--- cut here ---
Jul 21 13:27:46 localhost kernel: [ 2846.081337] Unable to handle kernel paging request at virtual address fffffff0
Jul 21 13:27:46 localhost kernel: [ 2846.081407] pgd = cb713707
Jul 21 13:27:46 localhost kernel: [ 2846.081438] [fffffff0] *pgd=3e5de861, *pte=00000000, *ppte=00000000
Jul 21 13:27:46 localhost kernel: [ 2846.081524] Internal error: Oops: 837 [#1] SMP ARM
Jul 21 13:27:46 localhost kernel: [ 2846.081571] Modules linked in: tun hci_uart btbcm bluetooth ecdh_generic ecc spidev brcmfmac brcmutil sg sha256_generic libsha256 uas cfg80211 bcm2835_codec(C) bcm2835_isp(C) bcm2835_v4l2(C) v4l2_mem2mem bcm2835_mmal_vchiq(C) rfkill videobuf2_dma_contig videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_bcm2835(C) raspberrypi_hwmon videodev snd_pcm mc spi_bcm2835 snd_timer snd vc_sm_cma(C) uio_pdrv_genirq uio fixed ip6t_REJECT nf_reject_ipv6 xt_hl ip6_tables ip6t_rt ipt_REJECT nf_reject_ipv4 xt_multiport ts_bm nft_limit xt_string xt_comment xt_hashlimit xt_owner xt_limit xt_addrtype xt_tcpudp xt_conntrack nft_compat nft_counter nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack nf_defrag_ipv4 nf_tables nfnetlink xt_geoip(O) ip_tables x_tables ipv6 nf_defrag_ipv6
Jul 21 13:27:46 localhost kernel: [ 2846.082265] CPU: 0 PID: 5 Comm: kworker/0:0 Tainted: G         C O      5.4.51-v7+ #1326
Jul 21 13:27:46 localhost kernel: [ 2846.082337] Hardware name: BCM2835
Jul 21 13:27:46 localhost kernel: [ 2846.082384] Workqueue: events_power_efficient htable_gc [xt_hashlimit]
Jul 21 13:27:46 localhost kernel: [ 2846.082446] PC is at 0xb990fdbc
Jul 21 13:27:46 localhost kernel: [ 2846.082479] LR is at 0xb89ceffc
Jul 21 13:27:46 localhost kernel: [ 2846.082513] pc : [<b990fdbc>]    lr : [<b89ceffc>]    psr: f990bd93
Jul 21 13:27:46 localhost kernel: [ 2846.084869] sp : fdd7fe69  ip : b991fe09  fp : b991fe84
Jul 21 13:27:46 localhost kernel: [ 2846.087235] r10: 00000000  r9 : be82f040  r8 : be82f000
Jul 21 13:27:46 localhost kernel: [ 2846.089604] r7 : 808d2dc0  r6 : be581300  r5 : 801259f4  r4 : 80ca0b10
Jul 21 13:27:46 localhost kernel: [ 2846.092003] r3 : 5d46ee69  r2 : 5d46ee69  r1 : b991fe2c  r0 : e5c96b0e
Jul 21 13:27:46 localhost kernel: [ 2846.094365] Flags: NZCV  IRQs off  FIQs on  Mode SVC_32  ISA Jazelle  Segment user
Jul 21 13:27:46 localhost kernel: [ 2846.099037] Control: 10c5383d  Table: 2fa6806a  DAC: 00000055
Jul 21 13:27:46 localhost kernel: [ 2846.101426] Process kworker/0:0 (pid: 5, stack limit = 0xe2aad9a1)
Jul 21 13:27:46 localhost kernel: [ 2846.103836] Stack: (0xfdd7fe69 to 0xb9920000)
Jul 21 13:27:46 localhost kernel: [ 2846.106211] Backtrace:
Jul 21 13:27:46 localhost kernel: [ 2846.108540] [<8020b204>] (trace_hardirqs_on) from [<801259f4>] (__local_bh_enable_ip+0x74/0xd0)
Jul 21 13:27:46 localhost kernel: [ 2846.113175]  r8:be82f000 r7:00002ce9 r6:be581300 r5:00000200 r4:b991e000 r3:00000000
Jul 21 13:27:46 localhost kernel: [ 2846.117904] Backtrace aborted due to bad frame pointer <d21c29c4>
Jul 21 13:27:46 localhost kernel: [ 2846.120332] Code: 5f617077 6c727463 3534315f 312d3631 (00058b9c)
Jul 21 13:27:46 localhost kernel: [ 2846.122709] ---[ end trace 425b335f65cb5021 ]---




[  374.966284] Internal error: Oops: d [#1] SMP ARM
[  374.978415] Process kworker/3:0 (pid: 26, stack limit = 0xf1b66816)
[  374.980722] Stack: (0xb9977ea0 to 0xb9978000)
[  374.982966] 7ea0: b9977ee4 b9977eb0 7f123220 808d2e14 8013bd80 be851e90 8013c5fc be85104c
[  374.987614] 7ec0: b980ba00 be5bd300 be5c0900 00000000 b9977ee4 900526a0 7f123224 808cd9fc
[  374.992420] 7ee0: 7f123670 7f123160 be85104c b980ba00 b9977f34 b9977f00 8013bd94 7f123658
[  374.997408] 7f00: be5bd300 be5bd300 00000008 be5bd300 b980ba14 00000008 be5bd318 80d03d00
[  375.002548] 7f20: b9976038 b980ba00 b9977f7c b9977f38 8013c5fc 8013bc24 b9977f5c 00000000
[  375.007904] 7f40: 80d03d00 be5bd318 80d03d00 80d993f7 b9977f7c b98ce300 b98ce280 00000000
[  375.013375] 7f60: b980ba00 8013c5a8 b98fbda4 b98ce31c b9977fac b9977f80 801429e0 8013c5b4
[  375.019074] 7f80: ffffffff b98ce280 801428a4 00000000 00000000 00000000 00000000 00000000
[  375.024986] 7fa0: 00000000 b9977fb0 801010ac 801428b0 00000000 00000000 00000000 00000000
[  375.031173] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[  375.037641] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[  375.051021] Code: e52de004 e8bd4000 e1a0300d e3c33d7f (e3c3303f)

Best regards!