crash-tool don’t work on ubuntu18.04 v5.3.15

Recently, I upgraded the kernel version to v5.3.15 on ubuntu18..04. When using the crash tool, I found that it was unable to analyze the dump file. The log is as follows. log: [email protected]:/var/crash# crash vmlinux /var/crash/201912251143/dump.201912251143 crash 7.2.7++ Copyright (C) 2002-2019 Red Hat, Inc. Copyright (C) 2004, 2005, 2006, 2010 IBM Corporation Copyright (C) 1999-2006…

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When trying to use reactive data I am getting invalid property ‘id’ of bean class [reactor.core.publisher.MonoOnAssembly]

I am trying to use thymeleaf form along with single valued reactive data stream. Using spring boot 2.1.3, thymeleaf 3.0.11 and webflux. My POJO is: @Getter @Setter @NoArgsConstructor public class RecipeCommand { private String id; private String description; } controller is: @GetMapping(“/recipe/{id}/update”) public String updateRecipe(Model model, @PathVariable String id){ Mono<RecipeCommand> recipeCommandMono = recipeService.getRecipeCommandById(id); model.addAttribute(“recipe”, recipeCommandMono);…

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Ganache Processing becomes very slow (with Automining Option) after consecutive thousands transactions

I am trying to deploy thousands of contracts on Ganache GUI. At first, it process all transactions very fast (deploy contracts and transactions for calling setters functions) . After some transactions, may 500/1000 or more, it become so slow and process a single transaction in 5-8 seconds or sometime even more . Is it normal…

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Why may a single DNS server be responding two different things for the same query?

I own a domain and configured through Digital Ocean DNS service –does this even matter? I have a CNAME for *.my.domain to ingress.my.domain. When I do a dig command, I get different results, e.g.: ➜ ~ dig abc.my.domain @8.8.8.8 ; <<>> DiG 9.11.3-1ubuntu1.11-Ubuntu <<>> abc.my.domain @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<-…

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Pin application to panel in Xfce on Xubuntu: Read/Set GValue

I want to pin an application (Firefox) to my Xfce panel on Xubuntu 18.04. So I used xconf-query to watch the panel channel for changes before I pinned Firefox and got the following output: $ xfconf-query -c xfce4-panel -m -v Überwachung von Kanal »xfce4-panel« wird gestartet: einstellen: /panels/panel-0/position-locked (false) einstellen: /panels/panel-0/position-locked (true) (xfconf-query:10987): xfconf-common-WARNING **:…

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