Update to: Increasingly frequent problem with: "Unexpected system error"; kernel-core; 4.16.15-300.fc28.x86_64; cannot be reported - related to Chrome and probably YouTube

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People,

As an update to this post:

https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx/thread/XBSEUU5J4G7UCGNMQC54UQEOVCKICZYL

- it looks like it might be a hardware problem after all. After updating to:

  kernel-4.18.13-200.fc28.x86_64

and then spending about a day moving my Default Chrome user to Vivaldi, and the system looking like it might now be stable - the system just crashed again - the symptoms: All the Vivaldi windows disappear (just like what happened with Chrome previously) and then while trying to shut down cleanly, the whole system becomes unresponsive . .

Here is what was in /var/log/messages:


Oct 19 12:19:39 phil audit[4707]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=1 pid=4707 comm="vivaldi-bin" exe="/opt/vivaldi/vivaldi-bin" sig=11 res=1 Oct 19 12:19:39 phil kernel: vivaldi-bin[4707]: segfault at 8 ip 000055f1d8310d03 sp 00007ffff57986d8 error 4 in vivaldi-bin[55f1d7f1a000+6427000] Oct 19 12:19:39 phil kernel: Code: 73 e5 01 4c 89 e7 e8 ac 59 e7 01 48 83 c4 20 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 8b 3f <48> 8b 47 08 48 8d 0d 72 3a d1 ff 48 89 c Oct 19 12:19:39 phil audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@3-1044-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res= Oct 19 12:19:39 phil systemd[1]: Started Process Core Dump (PID 1044/UID 0). Oct 19 12:19:41 phil systemd-coredump[1045]: Process 4707 (vivaldi-bin) of user 1000 dumped core.#012#012Stack trace of thread 4707:#012#0 0x000055f1d8310d03 n/a (vivaldi-bin)#012#1 0x000055f1da188a97 Oct 19 12:19:41 phil audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@3-1044-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=s Oct 19 12:19:43 phil abrtd[762]: Size of '/var/spool/abrt' >= 5000 MB (MaxCrashReportsSize), deleting old directory 'ccpp-2018-10-19-01:04:24.717619-18279' Oct 19 12:19:45 phil abrt-server[1138]: Package 'vivaldi-stable' isn't signed with proper key Oct 19 12:19:45 phil abrt-server[1138]: 'post-create' on '/var/spool/abrt/ccpp-2018-10-19-12:19:41.967676-4707' exited with 1 Oct 19 12:19:45 phil abrt-server[1138]: Deleting problem directory '/var/spool/abrt/ccpp-2018-10-19-12:19:41.967676-4707' Oct 19 12:19:45 phil abrt-server[1138]: Package 'vivaldi-stable' isn't signed with proper key Oct 19 12:19:45 phil abrt-server[1138]: 'post-create' on '/var/spool/abrt/ccpp-2018-10-19-12:19:41.967676-4707' exited with 1 Oct 19 12:19:45 phil abrt-server[1138]: Deleting problem directory '/var/spool/abrt/ccpp-2018-10-19-12:19:41.967676-4707'


I am thinking it is maybe a RAM problem? - Chrome, and now Vivaldi are the only things I use on the workstation (as opposed to the Fedora server) that use nearly all of the memory.

I use FireFox for my webmail stuff and prefer to keep that separate from the general browsing but it looks like the problem is not specific to a particular browser anyway . .

Suggestions about how to proceed with debugging?

Thanks,

Phil.
--
Philip Rhoades

PO Box 896
Cowra  NSW  2794
Australia
E-mail:  phil@xxxxxxxxxxxxx
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