RISCV: segfaults after installing wifi module (before reboot)

[Sander Jonkers]

Hardware: Licheee RV Dock RISC-V Allwinner D1. Has been rockstable for months with an image from Armbian person

Followed https://wiki.ubuntu.com/RISC-V/LicheeRV . After "sudo apt-get install licheerv-rtl8723ds-dkms" (but without reboot), I got segfaults for normal commands like "sudo apt update". I believe those commands were done via the fixed-ethernet ssh connection

After reboot, no more segfaults.

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: linux-allwinner 5.17.0.1003.5
ProcVersionSignature: User Name 5.17.0-1003.3-allwinner 5.17.15
Uname: Linux 5.17.0-1003-allwinner riscv64
ApportVersion: 2.23.1-0ubuntu3
Architecture: riscv64
CasperMD5CheckResult: unknown
Date: Wed Oct 26 09:01:42 2022
ProcCpuinfoMinimal:
 processor : 0
 hart : 0
 isa : rv64imafdc
 mmu : sv39
 uarch : thead,c906
SourcePackage: linux-meta-allwinner-5.17
UpgradeStatus: No upgrade log present (probably fresh install)

[Sander Jonkers (jonkers)]

Oct 25 18:27:53 ubuntu kernel: [ 4406.926779] Unable to handle kernel paging request at virtual address ffffff983a94d92e
Oct 25 18:27:53 ubuntu kernel: [ 4406.955407] Oops [#2]
Oct 25 18:27:53 ubuntu kernel: [ 4406.978035] Modules linked in: tls(+) sr9700 dm9601 usbnet input_leds joydev hid_generic usbhid hid binfmt_misc cfg80211 snd_soc_hdm
i_codec dw_hdmi_i2s_audio dw_hdmi_cec sunxi_cir pwrseq_simple sun8i_drm_hdmi rc_core dw_hdmi sun8i_mixer sunxi phy_generic sunxi_cedrus(C) snd_soc_simple_card v4l2_me
m2mem sun20i_codec snd_soc_simple_card_utils snd_soc_dmic videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 sun4i_drm videobuf2_common sun4i_frontend sun4i_tcon su
n8i_tcon_top snd_soc_core drm_cma_helper display_connector snd_compress videodev ac97_bus snd_pcm_dmaengine drm_kms_helper snd_pcm leds_sun50i_r329 mc snd_timer led_c
lass_multicolor fb_sys_fops snd syscopyarea sysfillrect sysimgblt backlight soundcore leds_gpio nls_iso8859_1 uio_pdrv_genirq uio dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua ramoops reed_solomon pstore_blk pstore_zone efi_pstore ip_tables x_tables autofs4 efivarfs raid10 raid456 libcrc32c async_raid6_recov async_memcpy async_pq async_xor xor async_tx raid6_pq
Oct 25 18:27:53 ubuntu kernel: [ 4406.978598]  raid1 raid0 multipath linear
Oct 25 18:27:53 ubuntu kernel: [ 4407.212165] CPU: 0 PID: 6352 Comm: sudo Tainted: G      D  C        5.17.0-1003-allwinner #3-Ubuntu
Oct 25 18:27:53 ubuntu kernel: [ 4407.246267] Hardware name: Sipeed Lichee RV Dock (DT)
Oct 25 18:27:53 ubuntu kernel: [ 4407.276217] epc : __kmalloc_node+0x128/0x364
Oct 25 18:27:53 ubuntu kernel: [ 4407.305231]  ra : __kmalloc_node+0x64/0x364
Oct 25 18:27:53 ubuntu kernel: [ 4407.334229] epc : ffffffff80239f7a ra : ffffffff80239eb6 sp : ffffffd80561fc90
Oct 25 18:27:53 ubuntu kernel: [ 4407.366646]  gp : ffffffff81e93b80 tp : ffffffd8025d6400 t0 : 00000000000001f8
Oct 25 18:27:53 ubuntu kernel: [ 4407.398907]  t1 : 0000003fb4c6641c t2 : 0000000000000008 s0 : ffffffd80561fd00
Oct 25 18:27:53 ubuntu kernel: [ 4407.431020]  s1 : ffffffd802201200 a0 : ffffffffffffffff a1 : ffffffff81f01dd0
Oct 25 18:27:53 ubuntu kernel: [ 4407.463158]  a2 : 0000000000000001 a3 : 83f2e1983a94d92e a4 : 0000000000000000
Oct 25 18:27:53 ubuntu kernel: [ 4407.495341]  a5 : 83f2e1983a94d92e a6 : 0000000000005747 a7 : 0000000000020000
Oct 25 18:27:53 ubuntu kernel: [ 4407.527548]  s2 : ffffffd80561fdf8 s3 : 0000000000000dc0 s4 : ffffffffffffffff
Oct 25 18:27:53 ubuntu kernel: [ 4407.559782]  s5 : 0000000000000008 s6 : ffffffd802201200 s7 : ffffffff801d3090
Oct 25 18:27:53 ubuntu kernel: [ 4407.591863]  s8 : 0000002b17a8edb0 s9 : 0000000000000000 s10: 0000002ade40e9b8
Oct 25 18:27:53 ubuntu kernel: [ 4407.623804]  s11: 0000002ade40e928 t3 : 6c5b5b52f11b86d1 t4 : 000000000000dcf4
Oct 25 18:27:53 ubuntu kernel: [ 4407.655493]  t5 : 000000000001d028 t6 : 000000000216f6d7
Oct 25 18:27:53 ubuntu kernel: [ 4407.684922] status: 0000000200000120 badaddr: ffffff983a94d92e cause: 000000000000000d
Oct 25 18:27:53 ubuntu kernel: [ 4407.717044] [<ffffffff801d3090>] kvmalloc_node+0x2e/0xa2
Oct 25 18:27:53 ubuntu kernel: [ 4407.746449] [<ffffffff803105ee>] proc_sys_call_handler+0xd8/0x1f...

[Sander Jonkers (jonkers)]

apport says the below ...

$ apport-collect 1994490
Package linux-meta-allwinner-5.17 not installed and no hook available, ignoring

*** Updating problem report

No additional information collected.

Press any key to continue...

No pending crash reports. Try --help for more information.

[Sander Jonkers (jonkers)]

File attached: syslog from around the Oops-es

ubuntu@ubuntu:/var/log$ cat syslog | grep Oops
Oct 25 18:27:24 ubuntu kernel: [ 4377.869176] Oops [#1]
Oct 25 18:27:53 ubuntu kernel: [ 4406.955407] Oops [#2]
Oct 25 18:27:57 ubuntu kernel: [ 4411.224132] Oops [#3]
Oct 25 18:28:06 ubuntu kernel: [ 4420.433722] Oops [#4]
Oct 25 18:28:20 ubuntu kernel: [ 4434.230391] Oops [#5]
Oct 25 18:28:25 ubuntu kernel: [ 4438.709924] Oops [#6]
Oct 25 18:28:26 ubuntu kernel: [ 4440.412321] Oops [#7]

ubuntu@ubuntu:/var/log$ cat syslog | grep -B40 -A40 -e "Oct 25 18:27" -e "Oct 25 18:28" > /tmp/syslog_around_Oops.txt

[Heinrich Schuchardt (xypron)]

Sander, as you mentioned Armbian just for clarification: Did you experience the problem with a fresh install using Ubuntu's LicheeRV image or with some Armbian stuff still in your installation.

[Sander Jonkers (jonkers)]

The segfault only happened with a fresh Ubuntu's LicheeRV image, written
to a separate SD-card.

The Armbian-like image was on another sd-card, not in the Lichee.

I will repeat the Ubuntu's LicheeRV image writing & boot & wifi-install
procedure to see if I can reproduce the problem (or that it was just a
fluke).

On Wed, Oct 26, 2022 at 1:57 PM Heinrich Schuchardt <
<email address hidden>> wrote:

> Sander, as you mentioned Armbian just for clarification: Did you
> experience the problem with a fresh install using Ubuntu's LicheeRV
> image or with some Armbian stuff still in your installation.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1994490
>
> Title:
> RISCV: segfaults after installing wifi module (before reboot)
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-meta-allwinner-5.17/+bug/1994490/+subscriptions
>
>

--

[Sander Jonkers (jonkers)]

So I repeated the setup sequence ... and no segfaults. All is working without any problems.

So ... close as a fluke?