Bug #21510
closed
Rails server crashes on Mac M2 with Bus Error at 0x0000000109946aac
Description
I have been struggling to setup a Rails 5.1.7 application on my Macbook M2 for months.
I installed Rosetta, x86_64 brew and my terminal app is set to run with Rosetta.
~ ❯ arch
i386
~ ❯ which brew
/usr/local/bin/brew
~ ❯ brew list
==> Formulae
abseil coreutils icu4c@77 lz4 pkgconf xz
autoconf gdbm krb5 m4 postgresql@14 yarn
automake gettext libffi mysql protobuf@29 zlib
bison gh libnghttp2 node readline zstd
brotli git libtool node-build redis
c-ares glib libunistring nodenv ruby-install
ca-certificates gmp libuv openssl@3 shared-mime-info
chruby heroku libyaml pcre2 terminal-notifier
==> Casks
~ ❯
bundle install works perfectly fine. Then I can run rails commands like rails console and rails db: commands with no issues.
I can also execute commands inside rails console too.
rails server launches the server as well, but as soon as I accessed the port 3000 on the browser, it crashes with this bus error.
Started GET "/" for ::1 at 2025-07-12 22:54:20 +1000
/Users/jkv-mbp/.gem/ruby/2.6.6/gems/pg-0.21.0/lib/pg.rb:56: [BUG] Bus Error at 0x0000000109946aac
ruby 2.6.6p146 (2020-03-31 revision 67876) [x86_64-darwin24]
-- Crash Report log information --------------------------------------------
See Crash Report log file under the one of following:
* ~/Library/Logs/DiagnosticReports
* /Library/Logs/DiagnosticReports
for more details.
Don't forget to include the above Crash Report log file in bug reports.
It seems like an issue related to pg gem.
Since this doesn't work on macOS, I installed Asahi Linux on it and setup the application.
Although, its aarch64 linux, the application can be launched without any issues. But, it's not a reliable solution for my work setup.
It would be great someone can help me with this issue.
I have attached a complete crash report and the Gemfile of the project.
Files
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