Re: [Xen-devel] Xen4.2 S3 regression?

[Ben Guthro <ben@xxxxxxxxxx>]

OK, well, I tried it with the following boot config:

With serial:

multiboot /xen.gz com1=115200,8n1,pci,0 console=com1 dom0_mem=max:1024M cpufreq=xen cpuidle sync_console loglvl=all xsave=0

module /vmlinuz-3.2.23-orc root=/dev/mapper/NxVG--eb56f027--0aeb--4e9a--9233--678d57b9dc9e-NxDisk5 ro ignore_loglevel no_console_suspend  xencons=tty console=hvc

I'm not sure it matters, but I'm making use of the renamed "magic" patch to autodetect the PCI serial card.

Without serial:

multiboot /xen.gz console=null dom0_mem=max:1024M cpufreq=xen cpuidle xsave=0

module /vmlinuz-3.2.23-orc dummy root=/dev/mapper/NxVG--eb56f027--0aeb--4e9a--9233--678d57b9dc9e-NxDisk5 ro 

module /initrd.img-3.2.23-orc

All of that said - this exhibited the same behavior as before, with the presence of the serial connection changing the test behavior.

On Wed, Aug 15, 2012 at 11:06 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:

>>> On 15.08.12 at 16:58, Ben Guthro <ben@xxxxxxxxxx> wrote:
> On Wed, Aug 15, 2012 at 10:50 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>
>>
>> > This, of course makes collecting logs difficult.
>>
>> Indeed. Did you try using the serial driver in polling mode
>> (without IRQ that is)?
>>
>>
> I'm not familiar with how to set this up, and a quick glance through
> xen/drivers/charr/ns16550.c didn't really shed much light.
>
> Is there a README / wiki page, etc describing this?

There's docs/misc/xen-command-line.markdown, which describes
this. It's basically

com1=<baud>,8n1,<port>,<irq>

and you'd want to set <irq> to 0 (I have a patch pending for
post-4.2 that allows omitting all the fields that you don't really
care to change from their default values, but for now you'll
have to specify them).

Jan

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel