luke-gru (Luke Gruber)
- Login: luke-gru
- Email: luke.gru@gmail.com
- Registered on: 08/19/2011
- Last sign in: 10/03/2025
Issues
open | closed | Total | |
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Assigned issues | 0 | 0 | 0 |
Reported issues | 13 | 47 | 60 |
Projects
Project | Roles | Registered on |
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Ruby | Contributor | 06/19/2025 |
Activity
10/03/2025
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04:46 PM Ruby Bug #21624: [BUG] Segmentation fault at 0x0000000000000000
- Thanks for the report. Have you tried locking the mysql2 gem to version 0.5.6? Version 0.5.7 was just released a couple of weeks ago.
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03:51 PM Ruby Bug #21620 (Closed): master branch: LTO with >= -O2 optimization causes miniruby to segfault in vm_cc
09/23/2025
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09:08 PM Ruby Bug #21614 (Open): thread_sched_wait_events race with timer_thread_wakeup
- `thread_sched_wait_events` checks th->sched.waiting_reason.flags under thread_sched_lock but not under
timer_thread.waiting_lock. The timer thread sets it under the timer_thread.waiting_lock only. This race
results in the assertion fai...
09/19/2025
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06:51 PM Ruby Bug #21612: Make sure we never context switch while holding the VM lock
- Well, I'm not sure if it should be allowed. The reason I said it should be is that currently, `EC_JUMP_TAG` is supported due to auto `lock_rec`. I thought that could cause ruby frames to be popped, but I think I was wrong.
Raising with ... -
06:10 PM Ruby Bug #21612 (Open): Make sure we never context switch while holding the VM lock
- ## The Problem
We're seeing errors in our application that uses ractors. The errors look like:
```
[BUG] unexpected situation - recordd:1 current:0
error.c:1097 rb_bug_without_die_internal
vm_sync.c:275 disallow_reentry
eval_in...
09/16/2025
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07:17 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15
- It would help us a lot if you could get the output from the crashing process. It should report a backtrace to `stderr` after the segfault right before the process ends.
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06:23 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15
- @kddnewton I'm not sure it is related to ractors because maybe those tests always failed on this platform. I'm also seeing compile warnings like:
```
2025-09-16T13:34:45.1561568Z In function ‘iseq_set_local_table’,
2025-09-16T13:34:... -
05:55 PM Ruby Bug #21607: require 'concurrent-ruby' causes segfault with Ruby 3.4.6 on linux/i686 built with GCC 15
- There appear to be issues with Ractors. I'm going to reassign this to the ractor team.
09/04/2025
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09:31 PM Ruby Bug #21560: RUBY_MN_THREADS=1 causes large performance regression in Puma 7
- Thanks for the benchmarks, they're very helpful. We (Shopify) have been working on Ractor issues and performance a lot for 3.5.0, but we haven't had time to dig into the scheduler much yet. I'll try to take a look soon.
09/03/2025
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04:13 PM Ruby Bug #21534: ppc64le bootstraptest/test_ractor.rb aborted (core dumped) on configure cppflags=-DRUBY_DEBUG and -O3
- Yeah, I think that's probably what's needed here.