July 2024 - ruby-dev - ml.ruby-lang.org

[ruby-dev:52086] [Ruby master Bug#20489] Ractor behavior strange in ruby master
by nekoyama32767 (Jinsong Yu) 10 Jan '25

10 Jan '25

Issue #20489 has been reported by nekoyama32767 (Jinsong Yu). ---------------------------------------- Bug #20489: Ractor behavior strange in ruby master https://bugs.ruby-lang.org/issues/20489 * Author: nekoyama32767 (Jinsong Yu) * Status: Open * ruby -v: ruby 3.4.0dev (2024-05-14T01:58:31Z master 9d01f657b3) [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- This is a tarai program Run`./ruby tarai_ractor.rb 2 8` is to use 2 thread to run 8 times tarai function total, that means 4 times tarai for each ractor(thread). ``` GC.disable def split_len(len, split) ret = [] mod = len % split head = 0 tail = 0 split.times do |i| if head >= len break end k = 0 if i < mod then k = 1 end tail = tail + (len/split) + k ret.append(head...tail) head = tail end return ret end def ary_split(ary, split) return split_len(ary.length,split) end def item_check(item) if item[0] != nil 1 + item_check(item[0]) + item_check(item[1]) else 1 end end def tarai(x, y, z) = x <= y ? y : tarai(tarai(x-1, y, z), tarai(y-1, z, x), tarai(z-1, x, y)) times = ARGV[0].to_i split = ARGV[1].to_i p split_len(times, split) split_len(times, split).each.map do |sp| Ractor.new (sp) { s = _1 s.each do tarai(13, 7, 0) end } end.each(&:take) ``` The problem is in ruby 3.1.2 and ruby 3.3 `./ruby tarai_ractor.rb 1 1` has simiular execute time with `./ruby tarai_ractor.rb 8 8` because each thread only run 1 time of tarai function, like follow: ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [x86_64-linux]: ``` time ruby exp_ractor_tarai.rb 1 1 [0...1] <internal:ractor>:267: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. real 0m1.442s user 0m1.429s sys 0m0.014s time ruby exp_ractor_tarai.rb 8 8 [0...1, 1...2, 2...3, 3...4, 4...5, 5...6, 6...7, 7...8] <internal:ractor>:267: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. real 0m1.857s user 0m13.817s sys 0m0.041s ``` But in ruby master(ruby 3.4.0dev) ruby 3.4.0dev (2024-05-14T01:58:31Z master 9d01f657b3) [x86_64-linux] 1 ractor 1 tarai: ``` time ../ruby exp_ractor_tarai.rb 1 1 `RubyGems' were not loaded. `error_highlight' was not loaded. `did_you_mean' was not loaded. `syntax_suggest' was not loaded. [0...1] exp_ractor_tarai.rb:47: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. real 0m1.671s user 0m1.666s sys 0m0.005s ``` 8 ractor 8 tarai: ``` time ../ruby exp_ractor_tarai.rb 8 8 `RubyGems' were not loaded. `error_highlight' was not loaded. `did_you_mean' was not loaded. `syntax_suggest' was not loaded. [0...1, 1...2, 2...3, 3...4, 4...5, 5...6, 6...7, 7...8] exp_ractor_tarai.rb:47: warning: Ractor is experimental, and the behavior may change in future versions of Ruby! Also there are many implementation issues. real 0m18.408s user 1m58.659s sys 0m0.021s ``` And in ruby 3.4.0dev when run `time ../ruby exp_ractor_tarai.rb 16 16` 16 thread should be used in system monitoring while only 8 threads are used. Ruby 3.3 and Ruby 3.1.2 do not have this problem. ---Files-------------------------------- thead16_16.png (168 KB) thread16_8.png (165 KB) -- https://bugs.ruby-lang.org/

5 13

[ruby-dev:52096] [Ruby master Bug#20633] compile error at vm_insnhelper.c when HAVE_DECL_ATOMIC_SIGNAL_FENCE is 0
by kimuraw (Wataru Kimura) 02 Sep '24

02 Sep '24

Issue #20633 has been reported by kimuraw (Wataru Kimura). ---------------------------------------- Bug #20633: compile error at vm_insnhelper.c when HAVE_DECL_ATOMIC_SIGNAL_FENCE is 0 https://bugs.ruby-lang.org/issues/20633 * Author: kimuraw (Wataru Kimura) * Status: Open * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- 木村といいます。最近導入された、vm_insnhelper.c 中での atomic_signal_fence()の呼び出し[1]が config.hで ”#define HAVE_DECL_ATOMIC_SIGNAL_FENCE 0” のときコンパイルエラーになります。おそらくコードの意図と異なると思うのでパッチ送ります。 ``` compiling array.c compiling vm.c In file included from vm.c:514: ./vm_insnhelper.c:400:5: warning: implicit declaration of function 'atomic_signal_fence' is invalid in C99 [-Wimplicit-function-declaration] atomic_signal_fence(memory_order_seq_cst); ^ ./vm_insnhelper.c:400:25: error: use of undeclared identifier 'memory_order_seq_cst' atomic_signal_fence(memory_order_seq_cst); ^ 1 warning and 1 error generated. ``` [1] Add explicit compiler fence when pushing frames to ensure safe profiling https://github.com/ruby/ruby/commit/64fef3b870a8ed8147654531aef4c065d8a730c6 ---Files-------------------------------- patch-vm_insnhelper.c.diff (535 Bytes) -- https://bugs.ruby-lang.org/

4 5

[ruby-dev:52099] Your account is hacked. Your data is stolen. Learn how to regain access.
by ruby-dev＠ruby-lang.org 28 Jul '24

28 Jul '24

> Hi, > > I am a hacker, and I have successfully gained access to your operating system. > I also have full access to your account. > > I've been watching you for a few months now. > > The fact is that your computer has been infected with malware through an adult site that you visited. > If you are not familiar with this, I will explain. > Trojan Virus gives me full access and control over a computer or other device. > This means that I can see everything on your screen, turn on the camera and microphone, but you do not know about it. > I also have access to all your contacts and all your correspondence. > > Why did your antivirus not detect malware? > Answer: The malware I used is driver-based, I update its signatures every 4 hours. Hence your antivirus is unable to detect its presence. > I made a video showing how you satisfy yourself in the left half of the screen, and the right half shows the video you were watching at the time. > > With one mouse click, I can send this video to all your emails and contacts on your social networks. > I can also make public all your e-mail correspondence and chat history on the messengers that you use. > > If you don't want this to happen, transfer $1390 in Bitcoin equivalent to my Bitcoin address (if you do not know how to do this, just search "buy bitcoin" on Google). > > My Bitcoin address (BTC Wallet) is: 18bF61DzcK5ifmz5HpjQapDuGt1gdZMiq3 > > After confirming your payment, I will delete the video immediately, and that's it. You will never hear from me again. > I will give you 50 hours (more than 2 days) to pay. I will get a notice, when you open this email, and the timer will start. > Filing a complaint somewhere does not make sense because this email cannot be tracked like my Bitcoin address. > > I never make any mistakes. > If I find that you have shared this message with someone else, the video will be immediately distributed. > > Best regards!

1 0

[ruby-dev:52093] [Ruby master Bug#20615] [Regexp] Different match result between using a character class and an unicode property
by taichi730 (Taichi Ishitani) 08 Jul '24

08 Jul '24

Issue #20615 has been reported by taichi730 (Taichi Ishitani). ---------------------------------------- Bug #20615: [Regexp] Different match result between using a character class and an unicode property https://bugs.ruby-lang.org/issues/20615 * Author: taichi730 (Taichi Ishitani) * Status: Open * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- -- https://bugs.ruby-lang.org/

1 2

[ruby-dev:52069] [Ruby master Bug#20311] Struct.new("A") memory leak?
by MaxLap (Maxime Lapointe) 08 Jul '24

08 Jul '24

Issue #20311 has been reported by MaxLap (Maxime Lapointe). ---------------------------------------- Bug #20311: Struct.new("A") memory leak? https://bugs.ruby-lang.org/issues/20311 * Author: MaxLap (Maxime Lapointe) * Status: Open * ruby -v: 3.3.0 * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- The following code gives the impression of a memory leak. ``` 10.times do 5000.times do Struct.new("A") Struct.send(:remove_const, :A) end GC.start puts `ps -o rss= -p #{$$}`.to_i end ``` ``` 27868 35324 43400 51472 58676 66144 73764 81196 88512 95752 ``` Is there another location where the struct gets set that I need to clear up for the GC free the memory? Happens in 3.2.2, 3.2.3, 3.3.0, 3.3-head, ruby-head. -- https://bugs.ruby-lang.org/

5 11

[ruby-dev:52091] [Cloudflare]: Verify Email Routing address
by Cloudflare 04 Jul '24

04 Jul '24

Hello, Verify this Email Routing address to begin receiving forwarded emails by clicking the verify email address link Account Name: Ruby Association https://dash.cloudflare.com/email_fwdr/verify?token=67vHX-KxAIKHClX5I2AzjaT… Once you have verified this email address, manage your Email Routing addresses at https://dash.cloudflare.com/?to=/:account/:zone/email We appreciate your help in building a better Internet. Thank you, Cloudflare If you believe you received this email in error, please contact dash.cloudflare.com/support

1 0