Created attachment 1485431 [details]
File: backtrace

Created attachment 1485432 [details]
File: cgroup

Created attachment 1485433 [details]
File: core_backtrace

Created attachment 1485434 [details]
File: cpuinfo

Created attachment 1485435 [details]
File: dso_list

Created attachment 1485436 [details]
File: environ

Created attachment 1485437 [details]
File: limits

Created attachment 1485438 [details]
File: maps

Created attachment 1485439 [details]
File: mountinfo

Created attachment 1485440 [details]
File: open_fds

Created attachment 1485441 [details]
File: proc_pid_status

Created attachment 1485442 [details]
File: exploitable

Similar problem has been detected:

The system was recently rebooted after applying all available F28 updates.

reporter:       libreport-2.9.5
backtrace_rating: 3
cmdline:        /usr/lib64/xfce4/panel/wrapper-2.0 /usr/lib64/xfce4/panel/plugins/libxfce4-sensors-plugin.so 17 10485795 xfce4-sensors-plugin Sensor plugin Show sensor values.
crash_function: strlen
executable:     /usr/lib64/xfce4/panel/wrapper-2.0
journald_cursor: s=b3cc44defd384508874f769deacd18b5;i=12227d;b=0bfaf5682a0142fcbbff79545a3c6ac3;m=29701d49;t=57adca314426d;x=4be301868abdaca6
kernel:         4.18.18-200.fc28.x86_64
package:        xfce4-panel-4.12.2-2.fc28
reason:         wrapper-2.0 killed by SIGSEGV
rootdir:        /
runlevel:       N 5
type:           CCpp
uid:            1000

I also have this problem. I upgraded to Fedora 28 last night.

Similar problem has been detected:

It happened spontaneously a few minutes after system start-up.

reporter:       libreport-2.9.5
backtrace_rating: 3
cmdline:        /usr/lib64/xfce4/panel/wrapper-2.0 /usr/lib64/xfce4/panel/plugins/libxfce4-sensors-plugin.so 16 10485800 xfce4-sensors-plugin Sensor plugin Show sensor values.
crash_function: strlen
executable:     /usr/lib64/xfce4/panel/wrapper-2.0
journald_cursor: s=fa059d3b789b42c9b9bb38041cfde23d;i=21841d;b=66dab441b985428a81bfe3762a207c5e;m=248b00a9;t=5879fe99792a9;x=513cba70f23e467a
kernel:         5.0.9-100.fc28.x86_64
package:        xfce4-panel-4.12.2-2.fc28
reason:         wrapper-2.0 killed by SIGSEGV
rootdir:        /
runlevel:       N 5
type:           CCpp
uid:            1000

This message is a reminder that Fedora 28 is nearing its end of life.
On 2019-May-28 Fedora will stop maintaining and issuing updates for
Fedora 28. It is Fedora's policy to close all bug reports from releases
that are no longer maintained. At that time this bug will be closed as
EOL if it remains open with a Fedora 'version' of '28'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 28 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Fedora 28 changed to end-of-life (EOL) status on 2019-05-28. Fedora 28 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.