[ Re-sending to a wider audience, hoping to catch someone's eye ] https://patchwork.kernel.org/patch/10953257/ On 21/05/2019 14:03, Marc Gonzalez wrote: > With CPUIDLE enabled, my system starts to boot, hangs a few seconds, > then silently reboots (killed by FW) Using extremely high-tech debugging tools (i.e. spraying printk left and right) I traced this crash down to: psci_cpu_suspend_enter: 435 psci_cpu_suspend: 171 psci_cpu_suspend: __invoke_psci_fn_smc c4000001 __invoke_psci_fn_smc: id=c4000001 3 0 0 /*** execution never returns from arm_smccc_smc() ***/ The following dmesg log caught my eye, and might be relevant: ARM_SMCCC_ARCH_WORKAROUND_1 missing from firmware Is that bad, doctor? I don't think it would explain the crash though... If I revert the patch, psci_cpu_suspend_enter() is never called, so we don't tickle the arm_smccc_smc() monster. Could it be that this FW doesn't support PSCI? Regards.
