gdb – looking at core dump
So an application gave up the ghost and you finde a “corpse”. At least you can learn a signal it caught – see Program terminated with signal 11, Segmentation fault. $ gdb core.614.1636347290GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-120.el7Copyright (C) 2013 Free Software Foundation, Inc.License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.htmlThis is
Brightness keys in XFCE
This is on Dell G15 5525’s brightness keys in Linux Mint XFCE 21.1 Vera (kernel 5.x). The installation of the system was easy-peasy and most features worked out of box.The missing was proprietary Nvidia-drivers which resulted in a periodic warnings and ugly freezes. The thing easy to fix – e.g. via Software Center. Then I
VMware/VMPlayer: ‘Skipping BTF generation’ – error
Issue After the upgrade Mint 20.3 Una do 21.0 Vanessa VMware’s VMPlayer stopped working!Usuaully, after every update touching a kernel when I try VMPlayer I get the warnnig-window about necesary vmnet and vmmon modues update. But this time I couldn’t pass this step. user$ sudo vmplayer #run in “xterm” I found the error at the
seeking (linux) messages (log)
So they (a vendor) wants you to look if an application failure has a system cause? You reported an issues on 01-11-2021 06:00. You are intersted on what happened around 6:00 A.M. that day. Raffly # cd /var/log # head messages #what’s the oldest Oct 31 03:06:01 apz-sagb1p rsyslogd: [origin software=”rsyslogd” swVersion=”8.24.0-57.el7_9.1″ x-pid=”1697″ x-info=”http://www.rsyslog.com”] rsyslogd
sed for csv debug
Instead of fancy and sophisticated thoughts lets share a daily experience 😉 You’ve collected data.csv: field1,filed2,filed3 A,B,C D,E,F f,a,i,l H,I,J L,M,N and while importing to a DB (sqlite in this example) you’ve got: sqlite> .mode csvsqlite> .import data.csv datadata.csv:4: expected 3 columns but found 4 – extras ignored Now, how to find faulty records (while
Communication to cooperation
I see a change coming from a private experience, transforming the professional life. We are less email-client-oriented with its calendar, notes, tasks. We incorporate chat tools enriched by cooperative enhancements.
Weisure?
I was wondering, should this site be a professional advertisement or just a hobby-related? But the true is that nowadays we mix it often. A year ago I learned ‘weisure’-word on an english class and here is the definition: https://www.macmillandictionary.com/dictionary/british/weisure
Register Machine
RodRego (visiting click in ‘i’ for a hint) – a simple toy, so called Register Machine, but the real educational help. I’m much impressed that it was developed by a philosopher for his students. The simplicity remainds me Core Wars of ’80. By the way, how many present coders have ever tried an assembler, machine
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