From: s.wanabe@... Date: 2017-05-07T02:44:18+00:00 Subject: [ruby-core:81016] [Ruby trunk Bug#13526] Segmentation fault at 0x0055c2e58e8920 ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-linux] Issue #13526 has been updated by wanabe (_ wanabe). File bug13526_dp.log added File bug13526_dp.patch added `git bisect` shows that this issue is appeared at r52332 [Bug #11384]. I ran https://bugs.ruby-lang.org/issues/13526#note-1 script with attached debug-print patch and got the log. 1. Thread 0x000055eacc7089d0 had "waitq: 0x7f737581fa18" on the stack. (line 4) 2. Thread 0x000055eacc7089d0 was killed and its stack was shrinked. (line 20) 3. `rb_autoload_reset()` tried to delete "waitq: 0x7f737581fa18" from list. (line 22) 4. But the node have been out of stack and corrupted! And the log alerts us that `check_autoload_required()` returns inconsistent values. I guess this is caused by the flow: `rb_autoload_str()` -> `rb_const_set(mod, id, Qundef)` -> `const_tbl_update()` -> `autoload_delete()` -> `st_delete(RCLASS_IV_TBL(mod), &autoload, &val)`. (But maybe other issue...) ---------------------------------------- Bug #13526: Segmentation fault at 0x0055c2e58e8920 ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-linux] https://bugs.ruby-lang.org/issues/13526#change-64678 * Author: vlad-leonov (Vladislav Leonov) * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-linux] * Backport: 2.2: UNKNOWN, 2.3: REQUIRED, 2.4: REQUIRED ---------------------------------------- see attached log ---Files-------------------------------- segv.log (245 KB) bug13526.log (13.7 KB) bug13526_dp.patch (2.72 KB) bug13526_dp.log (12.5 KB) -- https://bugs.ruby-lang.org/ Unsubscribe: