[snap] Chromium crashes at startup, deleting fontconfig caches "fixes" it

[Dennis Real]

user@local:~$ chromium
[7494:7494:1118/132907.917588:ERROR:sandbox_linux.cc(374)] InitializeSandbox() called with multiple threads in process gpu-process.
Trace/Breakpoint ausgelöst

dmesg:

[ 823.745636] audit: type=1326 audit(1605702600.951:81): auid=1000 uid=1000 gid=1000 ses=2 pid=7786 comm="chrome" exe="/snap/chromium/1399/usr/lib/chromium-browser/chrome" sig=0 arch=c000003e syscall=203 compat=0 ip=0x7fdbffb7ab9f code=0x50000
[ 823.745848] audit: type=1326 audit(1605702600.951:82): auid=1000 uid=1000 gid=1000 ses=2 pid=7786 comm="chrome" exe="/snap/chromium/1399/usr/lib/chromium-browser/chrome" sig=0 arch=c000003e syscall=203 compat=0 ip=0x7fdbffb7ab9f code=0x50000
[ 823.745865] audit: type=1326 audit(1605702600.951:83): auid=1000 uid=1000 gid=1000 ses=2 pid=7786 comm="chrome" exe="/snap/chromium/1399/usr/lib/chromium-browser/chrome" sig=0 arch=c000003e syscall=203 compat=0 ip=0x7fdbffb7ab9f code=0x50000
[ 823.749614] audit: type=1326 audit(1605702600.955:84): auid=1000 uid=1000 gid=1000 ses=2 pid=7786 comm="chrome" exe="/snap/chromium/1399/usr/lib/chromium-browser/chrome" sig=0 arch=c000003e syscall=203 compat=0 ip=0x7fdbffb7ab9f code=0x50000
[ 823.912551] traps: chrome[7653] trap int3 ip:55d1d6309f02 sp:7ffc8963b160 error:0 in chrome[55d1d2d74000+76ab000]

user@local:~$ chromium --disable-gpu
Trace/Breakpoint ausgelöst

user@local:~$ chromium --disable-gpu --disable-software-rasterizer
Trace/Breakpoint ausgelöst

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: chromium-browser 1:85.0.4183.83-0ubuntu0.20.04.2
ProcVersionSignature: Ubuntu 5.4.0-54.60-generic 5.4.65
Uname: Linux 5.4.0-54-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
DRM.card0-DP-1:
 enabled: disabled
 dpms: Off
 status: disconnected
 edid-base64:
 modes:
DRM.card0-HDMI-A-1:
 enabled: enabled
 dpms: On
 status: connected
 edid-base64: AP///////wAVw5cnRciwAg8bAQOANCF46joFqVRMnCYRUFShCACpQIGAswCpwIHAgQABAQEBKDyAoHCwI0AwIDYAB0QhAAAaAjqAGHE4LUBYLEUAB0QhAAAeAAAA/QAxPQ9MEQAKICAgICAgAAAA/ABFVjI0NTYKICAgICAgAbQCAyXxThAfBRQEEwMSAhEHFgYVIwkHB4MBAABmAwwAEACA4gB7AR2AGHEcFiBYLCUAB0QhAACeAR2A0HIcFiAQLCWAB0QhAACejArQiiDgLRAQPpYAB0QhAAAYjArQkCBAMSAMQFUAB0QhAAAYAAAAAAAAAAAAAAAAAAAAAAAADg==
 modes: 1920x1200 1920x1080 1920x1080 1920x1080 1920x1080i 1920x1080i 1920x1080i 1920x1080 1920x1080i 1920x1080i 1600x1200 1680x1050 1600x900 1280x1024 1280x800 1280x720 1280x720 1280x720 1280x720 1024x768 800x600 720x576 720x576 720x576 720x576i 720x576i 720x480 720x480 720x480 720x480 720x480 720x480i 720x480i 720x480i 720x480i 640x480 640x480 720x400
DRM.card0-HDMI-A-2:
 enabled: enabled
 dpms: On
 status: connected
 edid-base64: AP///////wAVwzcYAQEBASUTAQOAJh546sXFo1dKnCMSUFShCACBgAEBAQEBAQEBAQEBAQEBMCoAmFEAKkAwcBMAeC0RAAAeAAAA/wA4MDc2ODA5OQogICAgAAAA/QA7PR9ACwAKICAgICAgAAAA/ABTMTkwMQogICAgICAgAGU=
 modes: 1280x1024 1024x768 800x600 640x480 720x400
DRM.card0-HDMI-A-3:
 enabled: disabled
 dpms: Off
 status: disconnected
 edid-base64:
 modes:
Date: Wed Nov 18 13:23:21 2020
DiskUsage:
 Filesystem Type Size Used Avail Use% Mounted on
 /dev/sdb1 ext4 1,8T 1,2T 545G 69% /home
 tmpfs tmpfs 16G 81M 16G 1% /dev/shm
 /dev/sdb1 ext4 1,8T 1,2T 545G 69% /home
InstallationDate: Installed on 2016-04-30 (1663 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Gigabyte Technology Co., Ltd. B150-HD3P
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-54-generic root=UUID=6d707d68-42fe-492a-8d56-5bd131334069 ro quiet splash snd_hda_intel.power_save=0 vt.handoff=7
Snap.Changes: Error: command ['snap', 'changes', '--abs-time', 'chromium'] failed with exit code 1: error: no changes found
Snap.ChromeDriverVersion: ChromeDriver 86.0.4240.198 (d8a506935fc2273cfbac5e5b629d74917d9119c7-refs/branch-heads/4240@{#1431})
Snap.ChromiumVersion: Chromium 86.0.4240.198 snap
SourcePackage: chromium-browser
UpgradeStatus: Upgraded to focal on 2020-05-17 (184 days ago)
dmi.bios.date: 03/09/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F24e
dmi.board.asset.tag: Default string
dmi.board.name: B150-HD3P-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF24e:bd03/09/2018:svnGigabyteTechnologyCo.,Ltd.:pnB150-HD3P:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnB150-HD3P-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: B150-HD3P
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
modified.conffile..etc.default.apport:
 # set this to 0 to disable apport, or to 1 to enable it
 # you can temporarily override this with
 # sudo service apport start force_start=1
 enabled=0
mtime.conffile..etc.default.apport: 2017-06-27T22:18:31.198313

[Dennis Real (x-ubunmuone-z)]

sudo rm /var/cache/fontconfig/*
rm ~/.cache/fontconfig/*
sudo fc-cache -r -v
rm -rf ~/snap/chromium/common/.cache/fontconfig/

seems to resolve issue

[Olivier Tilloy (osomon)]

Glad you found a workaround, but this is a bit concerning.

Let's keep the bug open for now, in case more people report similar problems.