[Bug]: RP2040 intermittently freezes when transmitting

[GUVWAF]

Category

Hardware Compatibility

Hardware

Raspberry Pi Pico (W)

Firmware Version

2.1.14.99a31c1

Description

Device freezes intermittently when transmitting. Not easy to reproduce; happens rarely.
Again an issue with FreeRTOS and mutexes during an interrupt. See debug log.

Relevant log output

#0  sleep_until (t=<optimized out>) at /home/earle/Arduino/hardware/pico/rp2040/pico-sdk/src/common/pico_time/time.c:397
#1  0x10027224 in sleep_us (us=<optimized out>)
    at /home/earle/Arduino/hardware/pico/rp2040/pico-sdk/src/common/pico_time/include/pico/time.h:103
#2  0x1002723e in sleep_ms (ms=<optimized out>) at /home/earle/Arduino/hardware/pico/rp2040/pico-sdk/src/common/pico_time/time.c:429
#3  0x10021a7c in rtosFatalError ()
#4  0x100224f4 in xQueueSemaphoreTake ()
#5  0x10022646 in xQueueTakeMutexRecursive ()
#6  0x1002193c in __freertos_recursive_mutex_take ()
#7  0x100259b2 in __retarget_lock_acquire_recursive ()
#8  0x1002e51c in __malloc_lock (ptr=ptr@entry=0x2000d208) at /workdir/repo/newlib/newlib/libc/stdlib/mlock.c:44
#9  0x10032234 in _free_r (reent_ptr=0x2000d208, mem=mem@entry=0x20010418) at /workdir/repo/newlib/newlib/libc/stdlib/mallocr.c:2652
#10 0x1002e0f0 in free (aptr=0x20010418) at /workdir/repo/newlib/newlib/libc/stdlib/malloc.c:170
#11 0x10025eaa in __wrap_free ()
#12 0x1002ad92 in operator delete (p=<optimized out>, n=<optimized out>)
    at /home/earle/Arduino/hardware/pico/rp2040/pico-sdk/src/rp2_common/pico_standard_link/new_delete.cpp:27
#13 0x100260d2 in std::_Rb_tree<unsigned char, std::pair<unsigned char const, CBInfo>, std::_Select1st<std::pair<unsigned char const, CBInfo> >, std::less<unsigned char>, std::allocator<std::pair<unsigned char const, CBInfo> > >::_M_erase(std::_Rb_tree_node<std::pair<unsigned char const, CBInfo> >*) [clone .isra.0] ()
#14 0x10026250 in _detachInterruptInternal(unsigned char) ()
#15 0x100262ac in detachInterrupt ()
#16 0x10019d90 in ArduinoHal::detachInterrupt(unsigned long) ()
#17 0x1001a71a in SX126x::clearDio1Action() ()
#18 0x100086f4 in SX126xInterface<SX1262>::disableInterrupt() ()
#19 0x1000c84a in RadioLibInterface::isrLevel0Common(RadioLibInterface::PendingISR) ()
#20 0x1000c868 in RadioLibInterface::isrTxLevel0() ()
#21 0x100261c4 in _gpioInterruptDispatcher(unsigned int, unsigned long) ()
#22 0x1002678c in gpio_default_irq_handler () at /home/earle/Arduino/hardware/pico/rp2040/pico-sdk/src/rp2_common/hardware_gpio/gpio.c:155
#23 0x20001098 in irq_handler_chain_slots ()

[rcarteraz]

I don't have a debugger to catch the log but I have the same issue on my device as well. Very intermittent. Ran for 2 hours then froze, then ran for 4 hours before freezing, then ran for less than 15 minutes before freezing.

[GUVWAF]

Fixed by #2558.