id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
19485	Apps under guest os randomly crash with segfault	A C		"Hi all,

I have a virtual machine with Ubuntu 20.04 guest system. Apps randomly crash like that (guest kernel logs):

{{{
[ 2183.898620] GpuWatchdog[3837]: segfault at 0 ip 0000561cf320fce2 sp 00007f79124cf3c0 error 6 in brave[561ceecae000+7823000]
[ 2183.898626] Code: 83 c3 e8 75 e9 41 8b 85 00 01 00 00 85 c0 0f 84 99 00 00 00 48 8d 3d f6 45 ce fa be 01 00 00 00 ba 03 00 00 00 e8 4e 54 9d fe <c7> 04 25 00 00 00 00 37 13 00 00 c6 05 8c c1 b7 03 01 80 7d 8f 00
[ 2188.991978] traps: ThreadPoolForeg[3908] general protection fault ip:55cb8b730080 sp:7f69558e4060 error:0 in brave[55cb891f6000+7823000]
[ 2193.811756] ThreadPoolForeg[4038]: segfault at 35fdb2680008 ip 000055cb8b215252 sp 00007f695168be60 error 4 in brave[55cb891f6000+7823000]
[ 2193.811796] Code: c0 e8 42 ab bc 03 cc cc 55 48 89 e5 41 57 41 56 41 54 53 f6 c2 01 74 1e 83 fa 03 74 19 49 89 ce 48 89 f3 48 81 e2 00 00 fc ff <48> 8b 42 08 a8 18 75 5b a8 40 75 09 5b 41 5c 41 5e 41 5f 5d c3 48
}}}

{{{
[ 2451.129338] traps: WebExtensions[4251] general protection fault ip:7f5a50e41037 sp:7fff4802a540 error:0 in libxul.so[7f5a4d16e000+4980000]
[ 2469.517282] traps: Web Content[4206] general protection fault ip:7f0bed4e07cf sp:7fff63dec110 error:0 in libxul.so[7f0be955d000+4980000]
}}}

VirtualBox is unusable.

Crashes occurs on:
* Linux (different kernel version) and Windows 10 guest OS (I have not checked other systems).
* different VirtualBox versions: 5.2.38; 6.0.18; 6.1.4 (I have not checked other versions)
* different Linux host kernel versions: 4.14; 4.19; 5.5 (other kernel versions not checked)

Please help to investigate.
"	defect	closed	other	VirtualBox 6.1.4	invalid			other	other