Re: Suspend-resume failure on Intel Eagle Lake Core2Duo
From: Masahiro Yamada
Date: Thu Aug 03 2017 - 03:32:20 EST
2017-08-01 0:55 GMT+09:00 Thomas Gleixner <tglx@xxxxxxxxxxxxx>:
> On Mon, 31 Jul 2017, Tomi Sarvela wrote:
>> On 31/07/17 18:06, Thomas Gleixner wrote:
>> > Can you please remove the patch. And try the following:
>> > # echo N > /sys/module/printk/parameters/console_suspend
>> > # echo mem > /sys/power/state
>> > and log the output of the serial console. That way we might get a clue
>> > where it gets stuck.
>> I'm afraid it hangs right away. No response from SSH, no output to serial.
> What means hangs right away? Is there no output at all on the serial
> console? Or does it just stop at some point?
Sorry for jumping in.
Finally, I found this thread.
My environment is completely different (ARM64 board),
I am also suffering from a hibernation problem
since this commit.
I get no response on the serial console
after "Restarting tasks ... done." log message.
By reverting bf22ff45bed6 ("genirq: Avoid unnecessary low level
irq function calls", I can get hibernation working again.
DT : arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts
PSCI : ARM Trusted Firmware
CPU : Cortex-A72 * 2 + Cortex-A53 * 2
irqchip : GICv3 (drivers/irq/irq-gic-v3.c)