[Halium 9 Kernel Patching][GSI] Ubports fails to boot

nitanmarcel

@Lakotaubp I've charged my phone and I tried to boot again but with no success. Also I've noticed the last_kmgs above is buggy so I tried generating a new one by letting my phone reboot a couple of times. Is still broken but maybe there are some new clue about what happens that I've missed: https://del.dog/urrycughug

flohack

@nitanmarcel Hmm there are more than one boot attempts inside, its hard to see where you booted into recovery, and where you tried to boot Halium. However I found one here: https://del.dog/urrycughug#L9097 thats 6 seconds into kernel boot.

Then there is not much more messages that would show problems until 67 seconds where a normal reboot is triggered. So its not a kernel panic, it basically should at least run for this 1 minute - do you see RNDIS messages appear on the HOST computer, can you ssh to 10.15.19.82 during that time?

EDIT: yes you should have ssh access already, since the RNDIS adapter gets initialized:

<4>[ 6.617172,4] using random self ethernet address
<4>[ 6.617185,4] using random host ethernet address

if ssh does not work, try telnet

nitanmarcel

@Flohack SSH didn't worked and I haven't tried telnet, but yesterday I managed to get rid of the bug by setting the CONFIG_CMDLINE to tty0. Even tho the first bug got fixed there's another one.

Looks like something (we think lxc) causes kernel errors. I took some logs but they seem more broken than ever.
T

Last_kmsg: https://transfer.sh/NVwbC/last_kmsg
My last commit that enables tty0 console: https://github.com/nitanmarcel/android_kernel_motorola_exynos9610/commit/34f7cb72fcb2fce87dc327d4b4c7b2a3b900a62d

flohack

@nitanmarcel Yes you need a working console cmdline argument with UT, thats essential for upstart. Let me look on the other trace.

flohack

@nitanmarcel Yes lxc-start is crashing, probably even without doing anything already. Which kernel version is this, and plz post lxc-checkconfig output

nitanmarcel

@Flohack The Kernel's version is 4.14.56. I'm not at a PC right now and I've came back to stock ROM but I'll come back later with the required file.

Could you tell me where I could find that specific file?

nitanmarcel

Also here's a backup of the log folder from /data/system-data/var maybe it helps until I come back with the file you requested

https://transfer.sh/O6Vvf/log.zip

flohack

Okay so do the following:

Boot to recovery
mkdir /a
mount /data/rootfs.img /a
cd /a/etc/init
vi /etc/init/lxc-android-config.override
place only one word inside this file: manual
sync
cd /
umount /a

Now, if you reboot, lxc startup will be disabled, you should be able to log in with ssh. Then you can execute lxc-checkconfig in the shell.

nitanmarcel

I managed to login but it asked me for a password. I used phablet and it looks like is accepted. But it get's stuck after that, and I can't do anything. After a few seconds the phone reboots. The file you mentioned wasn't empty, I removed everything and only placed manual in it

nitanmarcel

@Flohack https://del.dog/ofipomemed here's the last_kmsg log

nitanmarcel

It might be the hwservicemanager. I'm applying a patch rn

nitanmarcel

@Flohack Same story. I can ssh but as soon as I enter the pasword phablet the console tab freezes and the phone reboots after a few seconds. This time without any last_kmsg. Screenshot from 2020-07-13 16-48-09.png

nitanmarcel

I managed to get an last_kmsg after a few attemps: https://paste.ubuntu.com/p/gdThm8JyfF/

nitanmarcel

If I'm not wrong I think this is what crashes it.

35>[   36.966464,5] systemd-logind[3823]: Failed to start user service, ignoring: Unknown unit: user@32011.service
<4>[   36.967859,4] !entity_is_task(se)

flohack

@nitanmarcel No that one you can ignore, its normal ^^

flohack

@nitanmarcel Please mount your rootfs again as described above and move out all startup jobs called lxc-* to another folder. We must prevent any interaction with cgroups and lxc. And we need to get the output of lxc-checkconfig (its not a file, rather you call this on the console)

nitanmarcel

@Flohack Same thing happens. I get stuck after I enter the password. I've also tried from recovery and the same thing happens.

nitanmarcel

Also after I connect with ssh and it freezes if I try from another tab I can't connect anymore

flohack

But does it bootloop?

flohack

Can you try this fix:
mkdir /a
mount /data/rootfs.img /a
echo manual |tee /a/etc/init/rsyslog.override
umount /a
sync
we disable syslog daemon for a while, see if that unblocks ssh