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bugfix for random crash when switching between presets

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this is a band-aid fix for random crashes when switching between presets with multiple segments - crossfade disabled.

!! adding type initializers fixed it for me on -S3, however I still see (less frequent) crashes on esp32, due to heap corruption.

It took me hours to get a meaningful stackdump:

assert failed: heap_caps_free heap_caps.c:360 (heap != NULL && "free() target pointer is outside heap areas")

Backtrace: 0x40084ee1:0x3ffb2570 0x4008e341:0x3ffb2590 0x40094709:0x3ffb25b0 0x4008534a:0x3ffb26e0 0x40094739:0x3ffb2700 0x400e9037:0x3ffb2720 0x400e917c:0x3ffb2740 0x400eaeeb:0x3ffb2760 0x40117ec5:0x3ffb27c0 0x401184ea:0x3ffb2800 0x4013509d:0x3ffb2820

  #0  0x40084ee1:0x3ffb2570 in panic_abort at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/esp_system/panic.c:402
  #1  0x4008e341:0x3ffb2590 in esp_system_abort at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/esp_system/esp_system.c:128
  #2  0x40094709:0x3ffb25b0 in __assert_func at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/newlib/assert.c:85
  #3  0x4008534a:0x3ffb26e0 in heap_caps_free at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/heap/heap_caps.c:360
      (inlined by) heap_caps_free at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/heap/heap_caps.c:345
  #4  0x40094739:0x3ffb2700 in free at /Users/ficeto/Desktop/ESP32/ESP32S2/esp-idf-public/components/newlib/heap.c:39
  #5  0x400e9037:0x3ffb2720 in Segment::deallocateData() at wled00/FX_fcn.cpp:189
  #6  0x400e917c:0x3ffb2740 in Segment::resetIfRequired() at wled00/FX_fcn.cpp:206
      (inlined by) Segment::resetIfRequired() at wled00/FX_fcn.cpp:203
  #7  0x400eaeeb:0x3ffb2760 in WS2812FX::service() at wled00/FX_fcn.cpp:1216 (discriminator 2)
  #8  0x40117ec5:0x3ffb27c0 in WLED::loop() at wled00/wled.cpp:115 (discriminator 3)
  #9  0x401184ea:0x3ffb2800 in loop() at C:/src/wled00/wled00.ino:20
  #10 0x4013509d:0x3ffb2820 in loopTask(void*) at C:/Users/user/.platformio/packages/framework-arduinoespressif32/cores/esp32/main.cpp:50

ELF file SHA256: 18c20b536f4c6ef4
This commit is contained in:
Frank 2023-09-08 12:06:23 +02:00
parent c7dd4a7f2b
commit 188956a4af
2 changed files with 14 additions and 6 deletions
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8
wled00/FX.h
View File

@ -395,10 +395,10 @@ typedef struct Segment {
};
uint16_t _aux0T;
uint16_t _aux1T;
uint32_t _stepT;
uint32_t _callT;
uint8_t *_dataT;
uint16_t _dataLenT;
uint32_t _stepT = 0;
uint32_t _callT = 0;
uint8_t *_dataT = nullptr;
uint16_t _dataLenT = 0;
} tmpsegd_t;
private:

12
wled00/FX_fcn.cpp
View File

@ -168,6 +168,7 @@ bool Segment::allocateData(size_t len) {
if (data && _dataLen == len) return true; //already allocated
//DEBUG_PRINTF("-- Allocating data (%d): %p\n", len, this);
deallocateData();
if (len == 0) return(false); // nothing to do
if (Segment::getUsedSegmentData() + len > MAX_SEGMENT_DATA) {
// not enough memory
DEBUG_PRINTF("!!! Effect RAM depleted: %d/%d !!!\n", len, Segment::getUsedSegmentData());
@ -184,9 +185,13 @@ bool Segment::allocateData(size_t len) {
}
void Segment::deallocateData() {
if (!data) return;
if (!data) { _dataLen = 0; return; }
//DEBUG_PRINTF("--- Released data (%p): %d/%d -> %p\n", this, _dataLen, Segment::getUsedSegmentData(), data);
free(data);
if ((Segment::getUsedSegmentData() > 0) && (_dataLen > 0)) { // check that we don't have a dangling / inconsistent data pointer
free(data);
} else {
DEBUG_PRINTF("---- Released data (%p): inconsistent UsedSegmentData (%d/%d), cowardly refusing to free nothing.\n", this, _dataLen, Segment::getUsedSegmentData());
}
data = nullptr;
// WARNING it looks like we have a memory leak somewhere
Segment::addUsedSegmentData(_dataLen <= Segment::getUsedSegmentData() ? -_dataLen : -Segment::getUsedSegmentData());
@ -338,6 +343,7 @@ void Segment::stopTransition() {
//DEBUG_PRINTF("-- Released duplicate data (%d): %p\n", _t->_segT._dataLenT, _t->_segT._dataT);
free(_t->_segT._dataT);
_t->_segT._dataT = nullptr;
_t->_segT._dataLenT = 0;
}
#endif
delete _t;
@ -364,6 +370,7 @@ uint16_t Segment::progress() {
void Segment::swapSegenv(tmpsegd_t &tmpSeg) {
if (!_t) return;
//DEBUG_PRINTF("-- Saving temp seg: %p (%p)\n", this, tmpSeg);
if (nullptr == &tmpSeg) { DEBUG_PRINTLN(F("swapSegenv(): tmpSeg is nullptr !!")); return; } // sanity check
tmpSeg._optionsT = options;
for (size_t i=0; i<NUM_COLORS; i++) tmpSeg._colorT[i] = colors[i];
tmpSeg._speedT = speed;
@ -404,6 +411,7 @@ void Segment::swapSegenv(tmpsegd_t &tmpSeg) {
void Segment::restoreSegenv(tmpsegd_t &tmpSeg) {
//DEBUG_PRINTF("-- Restoring temp seg: %p (%p)\n", this, tmpSeg);
if (nullptr == &tmpSeg) {DEBUG_PRINTLN(F("restoreSegenv(): tmpSeg is nullptr !!")); return;} // sanity check
if (_t && &(_t->_segT) != &tmpSeg) {
// update possibly changed variables to keep old effect running correctly
_t->_segT._aux0T = aux0;