Ferenc Wagner <wferi@xxxxxxx> writes: > Since I've instrumented s2disk and the hibernation path, no freeze > happened during hibernating the machine. Not until I removed the delays from hibernation_platform_enter(), which were put there previously to get step-by-step feedback. Removing them again resulted in a freeze in short course, maybe just two hibernations later. The instrumentation shows it stuck in dpm_suspend_start(PMSG_HIBERNATE). Does it mean that some device driver is at fault? I'll check if it always fails at the same point (although tracing into dpm_suspend_start isn't pure fun because of the multitude of devices it loops over). Is there any way to get printk output from that phase? Side question: If I run s2disk from the init=/bin/bash prompt, the instrumentation in acpi_enter_sleep_state_prep in drivers/acpi/acpica/hwsleep.c fires before the "Snapshotting system" phase, but it does not fire if I hibernate from the full running desktop. (That instrumentation was put there to investigate the KMS-triggered STR freeze.) What could explain this? -- Thanks, Feri. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
