Comment 0 for bug 1838129

How the crash happened:

0) Firefox is already open with a few tabs.
1) Click on a link in VS Code.
2) Firefox crashes
3) The crashreporter of firefex pops up.
4) Click on "Send to Mozilla".
5) Crash.

Here is the crashreport of Firefox: https://crash-stats.mozilla.org/report/index/b6952db2-9983-4f67-b51c-f03a60190727#tab-details
I send it manually via about:crashes because the crashreporter is crashed.

ProblemType: Crash
DistroRelease: Ubuntu 19.10
Package: firefox 68.0.1+build1-0ubuntu2
ProcVersionSignature: Ubuntu 5.2.0-8.9-generic 5.2.0
Uname: Linux 5.2.0-8-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: stefano 1718 F.... pulseaudio
BuildID: 20190719083815
Channel: Unavailable
CrashCounter: 1
CurrentDesktop: Unity
Date: Sat Jul 27 13:01:39 2019
DefaultProfileExtensions: extensions.sqlite corrupt or missing
DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
DefaultProfileLocales: extensions.sqlite corrupt or missing
DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:1141
DefaultProfilePrefSources: prefs.js
DefaultProfilePrefs:
 extensions.lastAppVersion: "68.0.1" (prefs.js)
 security.sandbox.content.tempDirSuffix: "0b21b0ae-b91f-43b6-9458-bf92ba3df531" (prefs.js)
 security.sandbox.plugin.tempDirSuffix: "9a7729c3-823f-443e-95cb-6b41d9a61198" (prefs.js)
DefaultProfileThemes: extensions.sqlite corrupt or missing
ExecutablePath: /usr/lib/firefox/crashreporter
ForcedLayersAccel: False
InstallationDate: Installed on 2019-07-20 (7 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190715)
IpRoute:
 default via 192.168.0.1 dev wlp2s0 proto dhcp metric 600
 169.254.0.0/16 dev wlp2s0 scope link metric 1000
 192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.199 metric 600
LocalLibraries: /snap/code/11/usr/lib/x86_64-linux-gnu/librsvg-2.so.2.40.13 /snap/code/11/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-gif.so /snap/code/11/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-png.so /snap/code/11/usr/lib/x86_64-linux-gnu/libcroco-0.6.so.3.0.1 /snap/code/11/usr/lib/x86_64-linux-gnu/libicudata.so.55.1 /snap/code/11/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-svg.so /snap/code/11/usr/lib/x86_64-linux-gnu/libxml2.so.2.9.4 /snap/code/11/usr/lib/x86_64-linux-gnu/libicuuc.so.55.1
MostRecentCrashID: bp-b6952db2-9983-4f67-b51c-f03a60190727
ProcCmdline: /usr/lib/firefox/crashreporter /home/username/.mozilla/firefox/7n8aku4a.default/minidumps/7eb59ca7-3107-9f59-9af7-7a6e321d6230.dmp
Profile0Extensions: extensions.sqlite corrupt or missing
Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
Profile0Locales: extensions.sqlite corrupt or missing
Profile0PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:1141
Profile0PrefSources: prefs.js
Profile0Themes: extensions.sqlite corrupt or missing
Profiles:
 Profile1 (Default) - LastVersion=68.0.1/20190719083815
 Profile0 - LastVersion=68.0.1/20190719083815 (In use)
RunningIncompatibleAddons: False
SegvAnalysis:
 Segfault happened at: 0x7f36ea452871 <__memmove_avx_unaligned_erms+33>: vmovdqu %ymm0,(%rdi)
 PC (0x7f36ea452871) ok
 source "%ymm0" ok
 destination "(%rdi)" (0x00000000) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: firefox
StacktraceTop:
 __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:240
 ?? () from /lib/x86_64-linux-gnu/libpng16.so.16
 ?? () from /lib/x86_64-linux-gnu/libpng16.so.16
 ?? () from /lib/x86_64-linux-gnu/libpng16.so.16
 ?? () from /lib/x86_64-linux-gnu/libpng16.so.16
SubmittedCrashIDs:
 bp-b6952db2-9983-4f67-b51c-f03a60190727
 bp-7b9123e3-e901-4bcd-8815-f36980190720
Title: crashreporter crashed with SIGSEGV in __memmove_avx_unaligned_erms()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 12/20/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 5XCN26WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Y520-15IKBM
dmi.modalias: dmi:bvnLENOVO:bvr5XCN26WW:bd12/20/2018:svnLENOVO:pn80YY:pvrLenovoY520-15IKBM:rvnLENOVO:rnLNVNB161216:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrLenovoY520-15IKBM:
dmi.product.family: Y520-15IKBM
dmi.product.name: 80YY
dmi.product.sku: LENOVO_MT_80YY_BU_idea_FM_Y520-15IKBM
dmi.product.version: Lenovo Y520-15IKBM
dmi.sys.vendor: LENOVO
separator: