System hang with enabled debug

[daemon]

Hi!
Problem was found in ChibiOS/RT 3 (rev.7788): with enabled debug in chconf.h

Code: Select all

#define CH_DBG_SYSTEM_STATE_CHECK           TRUE
#define CH_DBG_ENABLE_CHECKS                TRUE
#define CH_DBG_ENABLE_ASSERTS               TRUE

Interrupt from timer TIM2 (STM32F105) generated after chThdSleepS() calling and before chSysUnlock(), resulting in lock_cnt != 0
See pictures. 1.png, 2.png, 3.png
Please suggest what is the reason and how to fix that. Is this a some sort of bug related to IRQ disable/enable while context switching or something?

Simple code:

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int main(void) {

    halInit();
    chSysInit();
 
    while (1) chThdSleepMilliseconds(100);
}

Thanks.

[Giovanni]

Do you use priorities IRQ at level 0 or 1?

Giovanni

[daemon]

No, IRQ priorities at level 0/1 are not used.
Without debug in chconf.h system works, but I encountered some sort of hangs due to stack overflow or something during USB transfers, so decided to enable debug in ChibiOS and right after that I have found this issue (even without my code).
config files attached.

[daemon]

with classic periodic time

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#define CH_CFG_ST_TIMEDELTA                 0

system works, no hangs. So I assume this is somewhat related to freerunning timer on TIM2.

[Giovanni]

I committed changes earlier today, you should try those.

Giovanni