27 Dec
2022
27 Dec
'22
12:15 p.m.
Issue #18024 has been updated by niku (niku _).
I also couldn't reproduce it on m2 mac with both ruby versions 3.0.0 which is reported
and 3.2.0 the latest.
I hope it helps.
```
~/src/confirm_bugs.ruby-lang.org/18024 ()
asdf local ruby 3.0.0
~/src/confirm_bugs.ruby-lang.org/18024 ()
ruby --version
ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [arm64-darwin22]
~/src/confirm_bugs.ruby-lang.org/18024 ()
ruby description.rb
<internal:ractor>:267: warning: Ractor is experimental, and the behavior may change
in future versions of Ruby! Also there are many implementation issues.
"Starting a sender"
"Worker|0 Data: yay"
"Worker|0 Data: yay"
"Worker|0 Data: yay"
"Worker|1 Data: yay"
"Worker|1 Data: yay"
"Worker|1 Data: yay"
"Worker|0 Data: yay"
"Worker|0 Data: yay"
"Worker|1 Data: yay"
"Worker|0 Data: yay"
^C<internal:ractor>:694:in `take': Interrupt
from description.rb:35:in `block in <main>'
from description.rb:35:in `each'
from description.rb:35:in `<main>'
~/src/confirm_bugs.ruby-lang.org/18024 ()
asdf local ruby 3.2.0
~/src/confirm_bugs.ruby-lang.org/18024 ()
ruby --version
ruby 3.2.0 (2022-12-25 revision a528908271) [arm64-darwin22]
~/src/confirm_bugs.ruby-lang.org/18024 ()
ruby description.rb
description.rb:9: warning: Ractor is experimental, and the behavior may change in future
versions of Ruby! Also there are many implementation issues.
"Starting a sender"
"Worker|0 Data: yay"
"Worker|0 Data: yay"
"Worker|0 Data: yay"
"Worker|0 Data: yay"
"Worker|0 Data: yay"
"Worker|1 Data: yay"
"Worker|0 Data: yay"
"Worker|1 Data: yay"
"Worker|1 Data: yay"
"Worker|0 Data: yay"
^C<internal:ractor>:698:in `take': Interrupt
from description.rb:35:in `block in <main>'
from description.rb:35:in `each'
from description.rb:35:in `<main>'
```
----------------------------------------
Bug #18024: Ractor crashes when connections are closed in multiple Ractors
https://bugs.ruby-lang.org/issues/18024#change-100818
* Author: tagomoris (Satoshi TAGOMORI)
* Status: Assigned
* Priority: Normal
* Assignee: ko1 (Koichi Sasada)
* ruby -v: ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [arm64-darwin20]
* Backport: 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
When multiple Ractors will accept and close connections, that script caused the crash
shown below.
This pattern is taken when we want to distribute the overhead of `accept` to multiple CPU
cores.
Script:
```
require 'socket'
try_times = 10
worker_num = 2
listener = TCPServer.new("127.0.0.1", 8228)
listener.listen(100)
workers = worker_num.times.map do |i|
Ractor.new(i, listener.dup) do |index, sock|
while conn = sock.accept
begin
data = conn.read
p "Worker|#{index} Data: #{data}"
conn.close
rescue => e
p "Worker|#{index} #{e.full_message}"
end
end
rescue => e
$stderr.puts "Error, worker#{index}: #{e.full_message}"
end
end
p "Starting a sender"
sender = Ractor.new(try_times) do |tries|
tries.times.each do
s = TCPSocket.new("127.0.0.1", 8228)
s.write("yay")
ensure
s.close rescue nil
end
end
sender.take
workers.each{|w| w.take}
p "End"
```
Crash report:
```
<internal:ractor>:267: warning: Ractor is experimental, and the behavior may change
in future versions of Ruby! Also there are many implementation issues.
"Starting a sender"
"Worker|1 Data: yay"
snippets/ractor_accept.rb:30: [BUG] Bus Error at 0x00000014000001f5
ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [arm64-darwin20]
-- 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.
-- Control frame information -----------------------------------------------
c:0006 p:---- s:0023 e:000022 CFUNC :close
c:0005 p:0028 s:0019 e:000017 BLOCK snippets/ractor_accept.rb:30 [FINISH]
c:0004 p:---- s:0014 e:000013 CFUNC :times
c:0003 p:---- s:0011 e:000010 CFUNC :each
c:0002 p:0008 s:0007 e:000006 BLOCK snippets/ractor_accept.rb:26 [FINISH]
c:0001 p:---- s:0003 e:000002 (none) [FINISH]
-- Ruby level backtrace information ----------------------------------------
snippets/ractor_accept.rb:26:in `block in <main>'
snippets/ractor_accept.rb:26:in `each'
snippets/ractor_accept.rb:26:in `times'
snippets/ractor_accept.rb:30:in `block (2 levels) in <main>'
snippets/ractor_accept.rb:30:in `close'
-- Other runtime information -----------------------------------------------
* Loaded script: snippets/ractor_accept.rb
* Loaded features:
0 enumerator.so
1 thread.rb
2 rational.so
3 complex.so
4 ruby2_keywords.rb
5
/Users/tagomoris/.rbenv/versions/3.0.0/lib/ruby/3.0.0/arm64-darwin20/enc/encdb.bundle
6
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7 /Users/tagomoris/.rbenv/versions/3.0.0/lib/ruby/3.0.0/arm64-darwin20/rbconfig.rb
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10 /Users/tagomoris/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/deprecate.rb
11 /Users/tagomoris/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/errors.rb
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13
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16 /Users/tagomoris/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/user_interaction.rb
17
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22 /Users/tagomoris/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/specification.rb
23 /Users/tagomoris/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/util.rb
24 /Users/tagomoris/.rbenv/versions/3.0.0/lib/ruby/3.0.0/rubygems/dependency.rb
25
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1f0000000-1f2000000 r--
1f2000000-1f2bcc000 r--
1f2bcc000-1f4864000 rw-
1f4864000-1f6000000 r--
1f6000000-1f6864000 r--
1f6864000-1fa57c000 r--
1fa57c000-1fc000000 r--
1fc000000-200000000 r--
200000000-210000000 r--
210000000-220000000 r--
220000000-230000000 r--
230000000-240000000 r--
240000000-250000000 r--
250000000-260000000 r--
260000000-270000000 r--
270000000-280000000 r--
fc0000000-1000000000 ---
1000000000-7000000000 ---
[IMPORTANT]
Don't forget to include the Crash Report log file under
DiagnosticReports directory in bug reports.
Abort trap: 6
```
---Files--------------------------------
ruby_2021-07-06-231613_Moris-Macbook-Air.crash (35.9 KB)
ruby_2021-08-24-203317_Moris-Macbook-Air.crash (17.4 KB)
--
https://bugs.ruby-lang.org/