From: s.wanabe@... Date: 2016-11-05T14:26:31+00:00 Subject: [ruby-core:77980] [Ruby trunk Bug#12670] Segmentation fault on `Magick::Image#get_pixels` on ruby since ruby-2.2 Issue #12670 has been updated by _ wanabe. I think the status is changed, but there is another issue. We can see a assertion fail when I set RGENGC_CHECK_MODE as 1 in gc.c. ``` $ bundle exec ruby test.rb ruby: ../gc.c:1532: heap_page_allocate: Assertion `heap_allocated_pages <= heap_pages_sorted_length' failed. Aborted (core dumped) ``` This is in `heap_page_allocate()`. `heap_pages_sorted_length`, length of `heap_pages_sorted[]`, must be greater than `heap_allocated_pages` when ruby call the function. Otherwise, it causes invalid MEMMOVE() or assignment (`heap_pages_sorted[hi] = page;`). ---------------------------------------- Bug #12670: Segmentation fault on `Magick::Image#get_pixels` on ruby since ruby-2.2 https://bugs.ruby-lang.org/issues/12670#change-61314 * Author: Pavel Lobashov * Status: Assigned * Priority: Normal * Assignee: Koichi Sasada * ruby -v: 2.4 * Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: REQUIRED ---------------------------------------- 1. Create test.rb this code ~~~ ruby require 'rmagick' include Magick (0..10).each do |_| ImageList.new('1.bmp').get_pixels(0, 0, 1600, 800).each_slice(1600).to_a end ~~~ 2. Create any 1.bmp file with dimension at least 1600*800 (Include zip file with it, extract it in directory with test.tb) 3. Install ruby 2.1.9 (via RVM for example) and run ~~~ text ruby -v # ruby 2.1.9p490 (2016-03-30 revision 54437) [x86_64-linux] ruby test.rb # Nothing output, all good ~~~ 4. Install ruby 2.3.1 (via RVM for example) and run ~~~ text ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-linux] ruby test.rb # You get a big log of Segmentation failed ~~~ I issued an problem on `rmagick` issue tracker (https://github.com/rmagick/rmagick/issues/212) but there is no progress at all So I thought since both rubies use same version of rmagick I think problem may be in ruby itself. ---Files-------------------------------- out.log (25.8 KB) 1.bmp.zip (37.7 KB) core_dump.log (23.5 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: