Public bug reported:

Every day for the past few days I've been getting notification 'pending
update of chromium snap (n) days left'.  I noticed earlier that chromium
seems to crash my system when it updates(at least it warns now so i can
know it's doing it) - as in when i come back to log in after the update,
to xorg/gnome, the caps lock doesn't turn on when pressed, and there's
nothing but a black screen - ie the system is completely unresponsive.
tried hitting magic Sysrq+i to no avail.  Had to hard reboot the system
with the power button.

system was working just fine last night at 1030pm, so whatever happened
had to be after then is what did it:

I just got another one saying 13 days left.

from kern.log

Jan 26 02:38:38 eva kernel: [2487580.958314] loop20: detected capacity change 
from 0 to 303936
Jan 26 02:38:42 eva kernel: [2487585.064103] audit: type=1400 
audit(1674722322.852:26188): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="/snap/snapd/17950/usr/lib/snapd/snap-confine" pid=1586575 
comm="apparmor_parser"
Jan 26 02:38:42 eva kernel: [2487585.064110] audit: type=1400 
audit(1674722322.852:26189): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="/snap/snapd/17950/usr/lib/snapd/snap-confine//mount-namespace-capture-helper"
 pid=1586575 comm="apparmor_parser"
Jan 26 02:38:43 eva kernel: [2487585.240118] audit: type=1400 
audit(1674722323.028:26190): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="snap.chromium.hook.configure" pid=1586580 
comm="apparmor_parser"
Jan 26 02:38:43 eva kernel: [2487585.933271] audit: type=1400 
audit(1674722323.721:26191): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="snap-update-ns.chromium" pid=1586577 
comm="apparmor_parser"
Jan 26 02:38:43 eva kernel: [2487586.166852] audit: type=1400 
audit(1674722323.955:26192): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="snap.chromium.chromium" pid=1586579 
comm="apparmor_parser"
Jan 26 02:38:43 eva kernel: [2487586.192853] audit: type=1400 
audit(1674722323.981:26193): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="snap.chromium.chromedriver" pid=1586578 
comm="apparmor_parser"
Jan 26 02:38:44 eva kernel: [2487586.321626] audit: type=1400 
audit(1674722324.110:26194): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="snap-update-ns.cups" pid=1586582 comm="apparmor_parser"
Jan 26 02:38:44 eva kernel: [2487586.330187] audit: type=1400 
audit(1674722324.118:26195): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="snap.cups.cups-browsed" pid=1586585 comm="apparmor_parser"
Jan 26 02:38:44 eva kernel: [2487586.330708] audit: type=1400 
audit(1674722324.119:26196): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="snap.cups.cancel" pid=1586584 comm="apparmor_parser"
Jan 26 02:38:44 eva kernel: [2487586.336931] audit: type=1400 
audit(1674722324.125:26197): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="snap.cups.accept" pid=1586583 comm="apparmor_parser"

nothing in syslog from 2:38am

ubuntu 20.04 
linux: custom kernel 6.0.7 with squashfs bug hotfix  
( but it's been crashing during snap updates since at least the 5.x )

root@eva1:/var/log# apt-cache policy chromium-browser
chromium-browser:
  Installed: 80.0.3987.163-0ubuntu1
  Candidate: 80.0.3987.163-0ubuntu1
  Version table:
 *** 80.0.3987.163-0ubuntu1 500
        500 http://muug.ca/mirror/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status

actual version post update:
Version 109.0.5414.74 (Official Build) snap (64-bit)

which is different than the last time I saw it ( 103.0.5060.134 ) so
it's clearly updating itself, which supports the idea that the snap is
updating during the crash

but it would be nice to not hard lock my whole desktop system every 2
weeks.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Uname: Linux 6.0.7-gnulibre-squashfix x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 26 09:44:00 2023
InstallationDate: Installed on 2017-04-18 (2108 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
Snap: chromium 109.0.5414.74 (latest/stable)
SnapSource: ubuntu/+source/chromium-browser
UpgradeStatus: Upgraded to focal on 2020-04-25 (1005 days ago)
mtime.conffile..etc.apport.crashdb.conf: 2020-06-07T21:16:26.397404

** Affects: chromium-browser (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal snap

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to chromium-browser in Ubuntu.
https://bugs.launchpad.net/bugs/2003962

Title:
  chromium snap update makes system unresponsive, black screen

Status in chromium-browser package in Ubuntu:
  New

Bug description:
  Every day for the past few days I've been getting notification
  'pending update of chromium snap (n) days left'.  I noticed earlier
  that chromium seems to crash my system when it updates(at least it
  warns now so i can know it's doing it) - as in when i come back to log
  in after the update, to xorg/gnome, the caps lock doesn't turn on when
  pressed, and there's nothing but a black screen - ie the system is
  completely unresponsive.  tried hitting magic Sysrq+i to no avail.
  Had to hard reboot the system with the power button.

  system was working just fine last night at 1030pm, so whatever
  happened had to be after then is what did it:

  I just got another one saying 13 days left.

  from kern.log

  Jan 26 02:38:38 eva kernel: [2487580.958314] loop20: detected capacity change 
from 0 to 303936
  Jan 26 02:38:42 eva kernel: [2487585.064103] audit: type=1400 
audit(1674722322.852:26188): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="/snap/snapd/17950/usr/lib/snapd/snap-confine" pid=1586575 
comm="apparmor_parser"
  Jan 26 02:38:42 eva kernel: [2487585.064110] audit: type=1400 
audit(1674722322.852:26189): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="/snap/snapd/17950/usr/lib/snapd/snap-confine//mount-namespace-capture-helper"
 pid=1586575 comm="apparmor_parser"
  Jan 26 02:38:43 eva kernel: [2487585.240118] audit: type=1400 
audit(1674722323.028:26190): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="snap.chromium.hook.configure" pid=1586580 
comm="apparmor_parser"
  Jan 26 02:38:43 eva kernel: [2487585.933271] audit: type=1400 
audit(1674722323.721:26191): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="snap-update-ns.chromium" pid=1586577 
comm="apparmor_parser"
  Jan 26 02:38:43 eva kernel: [2487586.166852] audit: type=1400 
audit(1674722323.955:26192): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="snap.chromium.chromium" pid=1586579 
comm="apparmor_parser"
  Jan 26 02:38:43 eva kernel: [2487586.192853] audit: type=1400 
audit(1674722323.981:26193): apparmor="STATUS" operation="profile_replace" 
profile="unconfined" name="snap.chromium.chromedriver" pid=1586578 
comm="apparmor_parser"
  Jan 26 02:38:44 eva kernel: [2487586.321626] audit: type=1400 
audit(1674722324.110:26194): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="snap-update-ns.cups" pid=1586582 comm="apparmor_parser"
  Jan 26 02:38:44 eva kernel: [2487586.330187] audit: type=1400 
audit(1674722324.118:26195): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="snap.cups.cups-browsed" pid=1586585 comm="apparmor_parser"
  Jan 26 02:38:44 eva kernel: [2487586.330708] audit: type=1400 
audit(1674722324.119:26196): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="snap.cups.cancel" pid=1586584 comm="apparmor_parser"
  Jan 26 02:38:44 eva kernel: [2487586.336931] audit: type=1400 
audit(1674722324.125:26197): apparmor="STATUS" operation="profile_replace" 
info="same as current profile, skipping" profile="unconfined" 
name="snap.cups.accept" pid=1586583 comm="apparmor_parser"

  nothing in syslog from 2:38am

  ubuntu 20.04 
  linux: custom kernel 6.0.7 with squashfs bug hotfix  
  ( but it's been crashing during snap updates since at least the 5.x )

  root@eva1:/var/log# apt-cache policy chromium-browser
  chromium-browser:
    Installed: 80.0.3987.163-0ubuntu1
    Candidate: 80.0.3987.163-0ubuntu1
    Version table:
   *** 80.0.3987.163-0ubuntu1 500
          500 http://muug.ca/mirror/ubuntu focal/universe amd64 Packages
          100 /var/lib/dpkg/status

  actual version post update:
  Version 109.0.5414.74 (Official Build) snap (64-bit)

  which is different than the last time I saw it ( 103.0.5060.134 ) so
  it's clearly updating itself, which supports the idea that the snap is
  updating during the crash

  but it would be nice to not hard lock my whole desktop system every 2
  weeks.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Uname: Linux 6.0.7-gnulibre-squashfix x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Jan 26 09:44:00 2023
  InstallationDate: Installed on 2017-04-18 (2108 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  Snap: chromium 109.0.5414.74 (latest/stable)
  SnapSource: ubuntu/+source/chromium-browser
  UpgradeStatus: Upgraded to focal on 2020-04-25 (1005 days ago)
  mtime.conffile..etc.apport.crashdb.conf: 2020-06-07T21:16:26.397404

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https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/2003962/+subscriptions


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