Re: [PATCH RESEND 0/2] two serial_core suspend/resume fixes

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Jason Wang wrote:
> Sorry for resending this thread. Last thread is forgot to CC
> Greg Kroah-Hartman.

Well, I experienced no_console_supend breakage on my PXA270 based Zaurus
SL-C3200 (terrier/spitz) as well.

But your patches did not fix the behavior, serial port remains dead
after resume with no_console_supend.

> The [1/2] fix this situation:
> we set no_console_supend and console=ttyS0 to bootargs, then bootup
> the kernel, the boot logs will print out from ttyS0. When we execute
> echo mem > /sys/power/state, the system will suspend, we press a
> key(or other wakeup trigger) to resume the system, but the ttyS0 can't
> work anymore.
> 
> The [2/2] fix this situation:
> we set console=ttyS0 to bootargs, then bootup the kernel, the boot
> logs will print out from ttyS0, this time we set ttyS1 as tty and
> login for shell. When we execute echo mem > /sys/power/state, the
> system will suspend, we press a key(or other wakeup trigger) to
> resume the system, but the ttyS0 can't work anymore.

-- 
Best Regards / S pozdravem,

Stanislav Brabec
software developer
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