From: paul@brewing-bits.com
To: ruby-core@ruby-lang.org
Subject: [ruby-core:103127] [Ruby master Bug#17765] Segmentation fault when calling String#gsub
Date: Wed, 31 Mar 2021 11:57:59 +0000 (UTC) [thread overview]
Message-ID: <redmine.issue-17765.20210331115758.13804@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-17765.20210331115758.13804@ruby-lang.org
Issue #17765 has been reported by lenwood (Paul Martensen).
----------------------------------------
Bug #17765: Segmentation fault when calling String#gsub
https://bugs.ruby-lang.org/issues/17765
* Author: lenwood (Paul Martensen)
* Status: Open
* Priority: Normal
* ruby -v: ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x86_64-linux-musl]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
We recently had a ruby segfault occuring while invoking `String#gsub`.
The line in the code looks like this:
``` ruby
def sanitize_for_prometheus(string_or_symbol)
reg = /[^a-zA-Z_0-9]/
string_or_symbol.to_s.downcase.gsub(reg, '_')
end
```
And we've tried to replicate the segfault (on a different machine) with this script:
```rb
def sanitize_for_prometheus(string_or_symbol)
reg = /[^a-zA-Z_0-9]/
string_or_symbol.to_s.downcase.gsub(reg, '_')
end
def rand_string_or_symbol
@o ||= [('a'..'z').to_a, ('A'..'Z').to_a, (0..9).to_a, '-', '.'].flatten
str = @o.sample(50).join
rand > 0.5 ? str.to_sym : str
end
loop { sanitize_for_prometheus rand_string_or_symbol }
```
But without success so far. I have attached a shortened version of the log file for reference.
---Files--------------------------------
segfault.log (60.8 KB)
segfault_gsub.rb (343 Bytes)
--
https://bugs.ruby-lang.org/
next parent reply other threads:[~2021-03-31 11:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-31 11:57 paul [this message]
2021-03-31 13:10 ` [ruby-core:103128] [Ruby master Bug#17765] Segmentation fault when calling String#gsub mame
2021-03-31 22:13 ` [ruby-core:103134] " jean.boussier
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