http://bugzilla.kernel.org/show_bug.cgi?id=6259
Summary: Serial console baud rate not restored after suspend
Kernel Version: 2.6.16
Status: NEW
Severity: normal
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
Hello.
I have been trying to debug the S3 resume hang from Kernel Bug 5555. I got a
serial console set up, by kernel command line console=ttyS0,9600.
In 2.6.15, several ACPI-related messages appear on the console, as well as some
PCI stuff, and Stopping / Restarting Tasks.... etc. The console worked fine
before and after resume.
Now switched to 2.6.16. Some messages are not printed to the console (like the
ACPI: stuff) even on dmesg -n 8. "Stopping Tasks" is printed to the console, and
that is all. The machine enters S3 suspend.
After machine resumes, utter garbage (baud barf) is printed to the console. stty
-F /dev/ttyS0 shows the console is still operating at 9600 baud.
stty -F /dev/ttyS0 ispeed 9600 ospeed 9600
is required to restore the console to normal operation. Unfortunately this does
not HELP at all since I am trying to debug a periodic crash that happens DURING
the S3 resume process, so any output that would be interesting would occur
before I get a chance to fix the console with stty, assuming the machine wakes
up at all.
Again, this behavior only started in 2.6.16. In 2.6.15 the serial console
operates totally fine across many suspend/resume cycles.
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.
-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
_______________________________________________
acpi-bugzilla mailing list
acpi-bugzilla@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
