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My program can't start normally after boot，but Mark Text can start normally.

Whether I'm replacing it directly or through the Eshell.exe.

Mark Text

Did I miss something?

C++ Application can also start,WPF can't start

What is the reason?

I have these 2 Erlang modules:

Server:

As this answer explains, the Dired function dired-copy-filename-as-kill (0 w) lets one add the path of the file at point to the kill ring. However, I would like to use this path on Eshell, where characters such as SPC need to be escaped. Is there a way to copy the path to the kill ring with the relevant characters escaped, or to transform a previous kill so as to escape these characters?

I started the crashdump_viewer and started looking at my crashdump. Then at some point I got an error log. What does this mean and how do I fix it?

I have problems with my ejabberd installation and i am struggling to figure out what is going on.

After a few minutes (15-20 minutes) my CPU usage spikes to 100%. No aparent reason I can find. And from there on it stays flat out full CPU. I have tried to upgrade the hardware of the server but still I cannot get it to handle the load. The server is a quite modern one with Xeon process KVM virtualized. 8 cores and 32GB RAM, no other workloads.

I have tried to run etop but that does not work:

root@collaboration:/# ./usr/lib/erlang/lib/observer-2.9.4/priv/bin/etop -node ejabberd@localhost Erlang/OTP 23 [erts-11.0.3] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1]

Eshell V11.0.3 (abort with ^G) (etop@collaboration)1> {"init terminating in do_boot",{{badmatch,{error,nxdomain}},[{etop_tr,reader,1,[{file,"etop_tr.erl"},{line,62}]},{etop,init_data_handler,1,[{file,"etop.erl"},{line,146}]},{etop,start,1,[{file,"etop.erl"},{line,129}]},{init,start_em,1,[]},{init,do_boot,3,[]}]}} init terminating in do_boot ({{badmatch,{error,nxdomain}},[{etop_tr,reader,1,[{},{}]},{etop,init_data_handler,1,[{},{}]},{etop,start,1,[{},{}]},{init,start_em,1,[]},{init,do_boot,3,[]}]})

Crash dump is being written to: erl_crash.dump...done

My error log has many entries of strange content. I suspect basically my database is not in a healthy state. The DB is 10 years old with many upgrades so there is high probability of problems. Downloadable error.log here: https://fil.email/u1U0Y1wu

Pastebin extracts from error.log: https://pastebin.com/umpf51aU

Recently I upgraded to ejabberd 20.07, and I have tried to apply all the MySQL schema updates etc. This cannot have worked as well as I hoped because there are traces of problems in the logs. This one here at least fails: https://docs.ejabberd.im/admin/upgrade/from_19.05_to_19.08/

root@:~# mysql -u ejabberd ejabberd -p << EOF

ALTER TABLE users MODIFY server_host varchar(191) NOT NULL; ALTER TABLE last MODIFY server_host varchar(191) NOT NULL; ALTER TABLE rosterusers MODIFY server_host varchar(191) NOT NULL; ALTER TABLE rostergroups MODIFY server_host varchar(191) NOT NULL; ALTER TABLE sr_group MODIFY server_host varchar(191) NOT NULL; ALTER TABLE sr_user MODIFY server_host varchar(191) NOT NULL; ALTER TABLE spool MODIFY server_host varchar(191) NOT NULL; ALTER TABLE archive MODIFY server_host varchar(191) NOT NULL; ALTER TABLE archive_prefs MODIFY server_host varchar(191) NOT NULL; ALTER TABLE vcard MODIFY server_host varchar(191) NOT NULL; ALTER TABLE vcard_search MODIFY server_host varchar(191) NOT NULL; ALTER TABLE privacy_default_list MODIFY server_host varchar(191) NOT NULL; ALTER TABLE privacy_list MODIFY server_host varchar(191) NOT NULL; ALTER TABLE private_storage MODIFY server_host varchar(191) NOT NULL; ALTER TABLE roster_version MODIFY server_host varchar(191) NOT NULL; ALTER TABLE muc_room MODIFY server_host varchar(191) NOT NULL; ALTER TABLE muc_registered MODIFY server_host varchar(191) NOT NULL; ALTER TABLE muc_online_room MODIFY server_host varchar(191) NOT NULL; ALTER TABLE muc_online_users MODIFY server_host varchar(191) NOT NULL; ALTER TABLE motd MODIFY server_host varchar(191) NOT NULL; ALTER TABLE sm MODIFY server_host varchar(191) NOT NULL; ALTER TABLE route MODIFY server_host varchar(191) NOT NULL; ALTER TABLE push_session MODIFY server_host varchar(191) NOT NULL; ALTER TABLE mix_pam MODIFY server_host varchar(191) NOT NULL; EOF Enter password: ERROR 1054 (42S22) at line 1: Unknown column 'server_host' in 'users'

Since I am a litte lost as to why we are having all the CPU issues I am contemplating dropping the database and importing a backup on a fresh installed server. How would I go about exporting as much healthy data as possible and importing this into a new database? Preferrably do an export of users with passwords and rosters as a minimum. There are no MUC rooms or similar. If possible SSL certs (ACME) should be migrated as letsencrypt is not too happy with new certs being requested all the time. If you have any type of guidance on this issue I would be very happy!

Just a FYI with the above log and load I have 155 users online, 12500 registered users.

I have some code that only compiles coq code in Coq 8.09.0 . The version that I normally use is the most up-to-date version now which is Coq 8.11.0. I was able to create a new environment using opam switch and installed Coq 8.09.0 there. I successfully compiled all of the files with this version; however, I can't use proof general in emacs as it is still using Coq 8.11.0. I was wondering how I could make Proof General use a different opam instance using opam switch in Emacs. I have tried doing the following in the eshell

Below is part of my code in which I am trying to iterate over PE files. I am still getting the same error which is:

[Errno 2] No such file or directory: '//FlickLearningWizard.exe'

Tried using os.path.join(filepath) but it does not do anything since I am have already made the path. I got rid of '/' but it did not add much. Here is my code: