From: kubo@jiubao.org
To: ruby-core@ruby-lang.org
Subject: [ruby-core:69751] [Ruby trunk - Bug #11001] 2.2.1 Segmentation fault in reserve_stack() function.
Date: Sat, 27 Jun 2015 04:49:47 +0000 [thread overview]
Message-ID: <redmine.journal-53128.20150627044946.9fd4b38fcc841256@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-11001.20150325140453@ruby-lang.org
Issue #11001 has been updated by Takehiro Kubo.
Same issue with recent ruby versions on Ubuntu 12.04.
I tried it with recent OS versions and found that
* Ubuntu 12.04 - Segmentation fault
* Ubuntu 12.10 - Segmentation fault
* Ubuntu 13.04 - No problem
* Ubuntu 14.04 - No problem
* Ubuntu 15.04 - No problem
* Debian 8.1 - No problem
IMO, this may be an issue of OS, not of ruby.
----------------------------------------
Bug #11001: 2.2.1 Segmentation fault in reserve_stack() function.
https://bugs.ruby-lang.org/issues/11001#change-53128
* Author: Kiyoka Nishiyama
* Status: Feedback
* Priority: Normal
* Assignee:
* ruby -v: ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]
* Backport: 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: UNKNOWN
----------------------------------------
SEGV depends on stack limit size with 'ulimit -s <size>' .
This shell script [ulimit_change_test.sh] can reproduce SEGV on my Debian environment.
my Linux environment is Debian/GNU Linux 7.8.
But, I cannot reproduce this SEGV on Amazon Linux environment.
result on Debian 7.8
~~~
$ /tmp/ulimit_change_test.sh
8515
/tmp/ulimit_change_test.sh: 3 行: 20470 Segmentation fault ./ruby --version
8514
/tmp/ulimit_change_test.sh: 3 行: 20471 Segmentation fault ./ruby --version
8513
/tmp/ulimit_change_test.sh: 3 行: 20472 Segmentation fault ./ruby --version
8512
ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]
8511
/tmp/ulimit_change_test.sh: 3 行: 20475 Segmentation fault ./ruby --version
8510
/tmp/ulimit_change_test.sh: 3 行: 20476 Segmentation fault ./ruby --version
8509
/tmp/ulimit_change_test.sh: 3 行: 20477 Segmentation fault ./ruby --version
8508
ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]
8507
/tmp/ulimit_change_test.sh: 3 行: 20480 Segmentation fault ./ruby --version
8506
/tmp/ulimit_change_test.sh: 3 行: 20481 Segmentation fault ./ruby --version
8505
/tmp/ulimit_change_test.sh: 3 行: 20482 Segmentation fault ./ruby --version
8504
ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]
8503
/tmp/ulimit_change_test.sh: 3 行: 20485 Segmentation fault ./ruby --version
8502
/tmp/ulimit_change_test.sh: 3 行: 20486 Segmentation fault ./ruby --version
8501
/tmp/ulimit_change_test.sh: 3 行: 20487 Segmentation fault ./ruby --version
8500
ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]
8499
/tmp/ulimit_change_test.sh: 3 行: 20490 Segmentation fault ./ruby --version
8498
/tmp/ulimit_change_test.sh: 3 行: 20491 Segmentation fault ./ruby --version
8497
/tmp/ulimit_change_test.sh: 3 行: 20492 Segmentation fault ./ruby --version
8496
ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]
8495
/tmp/ulimit_change_test.sh: 3 行: 20495 Segmentation fault ./ruby --version
8494
/tmp/ulimit_change_test.sh: 3 行: 20496 Segmentation fault ./ruby --version
8493
/tmp/ulimit_change_test.sh: 3 行: 20497 Segmentation fault ./ruby --version
8492
ruby 2.2.1p85 (2015-02-26 revision 49769) [x86_64-linux]
8491
/tmp/ulimit_change_test.sh: 3 行: 20500 Segmentation fault ./ruby --version
8490
/tmp/ulimit_change_test.sh: 3 行: 20501 Segmentation fault ./ruby --version
8489
/tmp/ulimit_change_test.sh: 3 行: 20502 Segmentation fault ./ruby --version
$
~~~
This SEGV occurs in `reserve_stack()` function.
I suspect that the `buf[0x100]` size is too small for margin.
I attached patch to fix it.
---Files--------------------------------
0001-Bugfix-patch-of-reserve_stack-function.patch (720 Bytes)
ulimit_change_test.sh (211 Bytes)
--
https://bugs.ruby-lang.org/
next prev parent reply other threads:[~2015-06-27 4:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <redmine.issue-11001.20150325140453@ruby-lang.org>
2015-03-25 14:04 ` [ruby-core:68637] [Ruby trunk - Bug #11001] [Open] 2.2.1 Segmentation fault in reserve_stack() function kiyoka
2015-06-04 1:52 ` [ruby-core:69460] [Ruby trunk - Bug #11001] " wingicelee
2015-06-04 9:49 ` [ruby-core:69462] [Ruby trunk - Bug #11001] [Feedback] " nobu
2015-06-27 4:49 ` kubo [this message]
2015-06-27 6:08 ` [ruby-core:69752] Re: [Ruby trunk - Bug #11001] " Eric Wong
2015-06-27 23:38 ` [ruby-core:69758] " SASADA Koichi
2015-06-28 1:33 ` [ruby-core:69759] " nobu
2015-06-28 5:26 ` [ruby-core:69760] " kubo
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