Unity crashes when switching (swiping) between two applications on BQ E5 with OTA-13

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Unity crashes when switching (swiping) between two applications on BQ E5 with OTA-13 #1591

Open Talkless opened 4 years ago

Talkless commented 4 years ago

Originally I've discovered this issue with ActivityTracker and PureMaps, but crash can be reproduced with just Messages and Phone app:

Launch Phone app
Launch Messages app
Keep swiping from right edge to switch between these two apps continuously (like 1-2 swiches per second).
Do it until Unity crashes (whole session restarts back to the lock screen). Might take a minute or so.

Sometimes it's app that crashes, like ActivityTracker on PureMaps (one of those) while swiping, not whole Unity, but that seems rarer case. Maybe that's different issue.

Here's logs up to the point of Unity crash: https://gist.github.com/Talkless/82a6e55e00d384693e2fe453c76f8a31

UniversalSuperBox commented 3 years ago

Hi @Talkless,

I suspect this issue is caused by a low-memory situation leading to the kernel killing the unity8 executable.

Could you please watch /var/log/syslog up to the point of the unity8 restart to see if the kernel reports killing the process?

Talkless commented 3 years ago

Here's the output:

$ tail -f /var/log/syslog -n0 | tee ~/log                                                                                            
Nov 18 19:57:12 ubuntu-phablet dbus[637]: [system] Activating service name='com.canonical.PropertyService' (using servicehelper)                      
Nov 18 19:57:14 ubuntu-phablet dbus[637]: [system] Successfully activated service 'com.canonical.PropertyService'                
Nov 18 19:57:20 ubuntu-phablet dbus[637]: [system] Activating service name='org.freedesktop.timedate1' (using servicehelper)                          
Nov 18 19:57:20 ubuntu-phablet dbus[637]: [system] Successfully activated service 'org.freedesktop.timedate1'

These Activating.. happens a bit after the crash, when Unity is loading. So.. no much info I guess.

Talkless commented 3 years ago

Still happens on OTA-14 btw.

Talkless commented 3 years ago

Still reproducible on OTA-15.

UniversalSuperBox commented 3 years ago

I've asked some people to confirm this issue on their 1GB RAM devices, but none have yet.

It is possible that expecting this 5-year-old device to switch apps at faster than 2 per second could be too much for it. But we'll see if we can get a confirming case.

cibersheep commented 3 years ago

I could reproduce this on E5 dev channel (2021-02-05) after quite a long time swiping (as suggested ~1 minute) (Is there a log I can send?)

Talkless commented 3 years ago

Same with OTA-16

Talkless commented 3 years ago

Same with OTA-17

Talkless commented 3 years ago

Same with OTA-18

Flohack74 commented 3 years ago

@Talkless in general it makes no sense to re-iterate for every release that the bug is still there, that just generates noise on the ticket. As long as the ticket is open we assume that it is still not working. Only comment on such a ticket if the problem is fixed or you have new information.