[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: segfault with ASAN while running BIST tests for ov-class.cc
From: |
John W. Eaton |
Subject: |
Re: segfault with ASAN while running BIST tests for ov-class.cc |
Date: |
Fri, 27 Apr 2018 16:06:11 -0400 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 |
On 04/27/2018 03:16 PM, John W. Eaton wrote:
On 04/27/2018 01:21 PM, Rik wrote:
jwe,
This is repeatable for me.
run-octave -f
octave:1> test ov-class.cc
ASAN:SIGSEGV
=================================================================
==18433==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000
(pc 0x7f3d7e7942b4 bp 0x7f3d8ef5f2a0 sp 0x7ffde1363138 T0)
#0 0x7f3d7e7942b3 (<unknown module>)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV ??:0 ??
==18433==ABORTING
Probably due to recent changes in classdef.
Hmm, ov-class.cc implements the old-style @DIR classes, so I'd be
surprised if my changes to classdef cause a problem there. But possibly
it was my change to the evaluator?
Are you building the stable branch or default?
I built the stable branch with
.../configure --enable-address-sanitizer-flags --disable-java
I used --disable-java because I remember problems with asan and Java in
the past. Testing ov-class.cc worked, but there was one test skipped
due to HAVE_JAVA being false. Then I tried again with Java enabled and
I see what you see:
octave:2> test ov-class.cc
ASAN:DEADLYSIGNAL
=================================================================
==30937==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000
(pc 0x7fc0ee7c84f3 bp 0x7fc108874860 sp 0x7fc10aa01508 T9)
==30937==The signal is caused by a READ memory access.
==30937==Hint: address points to the zero page.
#0 0x7fc0ee7c84f2 (<unknown module>)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (<unknown module>)
Thread T9 (QThread) created by T0 here:
#0 0x7fc1411cf390 in __interceptor_pthread_create
(/usr/lib/x86_64-linux-gnu/libasan.so.4+0x37390)
#1 0x7fc136a0b725 in QThread::start(QThread::Priority)
(/usr/lib/x86_64-linux-gnu/libQt5Core.so.5+0xab725)
==30937==ABORTING
So I think this is our new favorite Java bug, not any change I made for
classdef or the interpreter.
jwe