ci_nxp_build_failure: SDHC disk performance and FATFS fail on frdm_imx91

struct dns_server has a union member also named dns_server — illegal in C++ (include/zephyr/net/dns_resolve.h)

drivers: dma: esp32: dma_esp32_get_status() uses the hardware descriptor address with only a lower-bound check

drivers: i2s: esp32: a failed TX start loses the mem-slab block it already dequeued

drivers: sdhc: SDHC_INIT_PRIORITY default change breaks boards with SDHC depending on fixed regulators

soc: stm32h755xx: STM32H755II fails to enumerate USB CDC on M4 core

`net: dns: dispatcher mutex (server->dispatcher.lock) never initialized — crashes on first real DNS response with CONFIG_ASSERT=y`

qemu_cortex_a9: system time freezes under sustained interrupt-masked busy-wait (kernel.timer.starve hang)

arch: riscv: z_riscv_pmp_kernelmode_enable() does not clear trailing dynamic PMP entries

Linker error when using MDIO without a PHY