Hi Todd, Thanks for reporting this. On 2022-07-07, Todd Brandt <todd.e.brandt@xxxxxxxxxxxxxxx> wrote: > Ever since 5.19.0-rc1 the serial device has taken almost a second > longer in both suspend and resume. This effect is witnessed in half > the machines in our lab (~10 machines). It occurs on dell, asus, > gigabyte and other machines so it's not hardware specific. Please provide a full dmesg log if you can. The important parts of the log would be: - boot arguments - any lines with "printk" in it - timing information - messages during suspend and resume pr_flush() uses a timeout of 1 second. I assume your console driver is not printing and therefore not making any forward progress. John Ogness