On Mon, 22 May 2017 02:15:59 -0000
"William Mattison" <mattison.computer(a)yahoo.com> wrote:
1. For several weeks, I've been seeing text fly by early during
boot process, before the blue and white line grows left to right at
the bottom of the screen. But the text scrolls by too fast and
disappears too fast for me to catch more than an isolated word or
two. I also had no idea how to access appropriate logs. Then came
the boot failure. I did what the dracut shell said, and I recognized
that the first set of lines that I posted in one of the boot failure
postings quite possibly was the text I had been seeing during boots
for the past several weeks. 2. Since the boot problem was fixed, I
continue to see what I believe is the same text, the same way as
before the boot failure problem. As you advised, I did the
journalctl command. I routed the output to a text file, and then did
a "cat -n" to another file so we would have line numbers. Here's the
result, with line numbers and an extra couple lines at the beginning
and end for context:
So yes, the problem is still there. (And now I know a way of
to boot logs!)
This appears to be a common problem. There is a bugzilla, and it
doesn't have a solution, though some people report that later kernels
don't have the issue for them. People also report that 4.8 kernels did
not display these errors.
The general consensus is that these messages are warnings more than
errors, that they occur because the linux kernel finds errors in BIOS
code and reports them, and that they don't impact the operation of the
computer. I am not an expert about this, so just take my observations
as a data point.
I'm running a test 4.12 kernel locally compiled on F25, and I see only
a single message about this in my logs.
kernel: acpi PNP0A03:00: _OSC failed (AE_NOT_FOUND); disabling ASPM
and don't seem to observe any ill effects.
This is the bug report.
More information, not Fedora related, here.