Ferenc Wagner <wferi@xxxxxxx> writes: > "Rafael J. Wysocki" <rjw@xxxxxxx> writes: > >> On Wednesday 18 November 2009, Ferenc Wagner wrote: >> >>> Ferenc Wagner <wferi@xxxxxxx> writes: >>> >>> 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? >> >> It looks like it uses the "shutdown" method when run with init=/bin/bash, but >> I don't know why exactly. > > Thanks for the tip, I'll check this too. While looking into this, I found a reproducible kernel panic: 1. boot with init=/bin/bash 2. mount /usr; swapon -a 3. plug in a USB pendrive 4. s2disk (machine goes to sleep) 5. power on, proceed with resuming, press Enter to cancel resume pause 6. ACPI: Hardware changed while hibernated, cannot resume! Kernel panic - not syncing: ACPI S4 hardware signature mismatch Does it make sense? -- Thanks, Feri. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
