Repository navigation
pulseview: crash when using the “Binary Decoder Output View” and multiple changes to the baud rate in the UART decoder #103
Description
How to reproduce the error
- Unzip the attached file and open the .sr file it contains.
- Add a UART decoder with RX set to D0 and the baud rate set to 1024.
- Open the “Binary Decoder Output View”
- Open the UART settings.
- Change the baud rate several times in the hundreds place, e.g., from 1024 to 1124, 1224, ...
- pulseview crashes
backtrace
Cannot access memory at address 0x5555561991f8
(gdb) bt
#0 0x00005555556f70a8 in std::_Deque_iterator<pv::data::DecodeBinaryDataChunk, pv::data::DecodeBinaryDataChunk&, pv::data::DecodeBinaryDataChunk*>::operator+= (__n=0, this=<synthetic pointer>)
at /usr/include/c++/7/bits/stl_deque.h:220
#1 std::_Deque_iterator<pv::data::DecodeBinaryDataChunk, pv::data::DecodeBinaryDataChunk&, pv::data::DecodeBinaryDataChunk*>::operator+ (__n=0, this=0x7fffc4003640) at /usr/include/c++/7/bits/stl_deque.h:230
#2 std::_Deque_iterator<pv::data::DecodeBinaryDataChunk, pv::data::DecodeBinaryDataChunk&, pv::data::DecodeBinaryDataChunk*>::operator[] (__n=0, this=0x7fffc4003640) at /usr/include/c++/7/bits/stl_deque.h:246
#3 std::deque<pv::data::DecodeBinaryDataChunk, std::allocator<pv::data::DecodeBinaryDataChunk> >::operator[] (__n=0, this=0x7fffc4003630) at /usr/include/c++/7/bits/stl_deque.h:1394
#4 QHexView::initialize_byte_iterator (this=this@entry=0x5555561991c0, offset=0, offset@entry=<error reading variable: Cannot access memory at address 0x7fffffffa680>)
at /usr/src/debug/pulseview-0.4.2-bp156.3.8.x86_64/pv/views/decoder_binary/QHexView.cpp:203
#5 0x00005555556f81e9 in QHexView::paintEvent (this=0x5555561991c0, event=<optimized out>) at /usr/src/debug/pulseview-0.4.2-bp156.3.8.x86_64/pv/views/decoder_binary/QHexView.cpp:340
(gdb) frame 4
#4 QHexView::initialize_byte_iterator (this=this@entry=0x5555561991c0, offset=0, offset@entry=<error reading variable: Cannot access memory at address 0x7fffffffa680>)
at /usr/src/debug/pulseview-0.4.2-bp156.3.8.x86_64/pv/views/decoder_binary/QHexView.cpp:203
203 size_t size = data_->chunks[i].data.size();
(gdb) l
198 current_chunk_offset_ = 0;
199 current_offset_ = offset;
200
201 size_t chunks = data_->chunks.size();
202 for (size_t i = 0; i < chunks; i++) {
203 size_t size = data_->chunks[i].data.size(); <- !!!
204
205 if (offset >= size) {
206 current_chunk_id_++;
207 offset -= size;
Additional information
The issue is reproduceable with the following version:
- Version 0.4.2 on openSUSE Leap Linux
- Version 0.5.0-git-e2fe9df on openSUSE Leap Linux
- Nightly build on Windows
Activity