Re: [Ipmitool-devel] BMC hangs

[Tomasz N. <tno...@ne...>]

Hall, Eric R <eri...@in...> wrote:
>
> > - set non-volatile-bit-rate 115.2
> > - set volatile-bit-rate 115.2
> > [...]
> 
> 115.2 might be a bit too fast.
> 
> What are the BIOS settings?  Ideally the BIOS settings should look
> like:
> Console Redirection    [Serial Port B]
> Flow Control           [RTS/CTS]
> Baud Rate              [19.2k]
> Terminal Type          [PC-ANSI]
> Legacy OS Redirection  [Enabled]

I have enabled default settings considering them best,
so (as far as I remember):
Console Redirection    [Serial Port B]
Flow Control           [None]
Baud Rate              [115.2k]
Terminal Type          [VT-100+]
Legacy OS Redirection  ? - don't rembember

Following these BIOS default settings I've set up the same
speed in system bootloader (grub):

kernel /boot/xen.gz-2.6.18-53.1.14.el5 com2=115200,8n1 console=com2,vga
module /boot/vmlinuz-2.6.18-53.1.14.el5xen xencons=ttyS1 console=tty
console=ttyS1,115200n8

and that's why I've set 111.2k also for SOL.

> > # pstree |tail -n5 # <-- layout is ok
> > # pstre # <--- lyout is broken and hardly readable
> Does the BMC hang when outputting lots of data like this?  Or is it
> some time after?

I think the broken output doesn't influence BMC blocking.
As far as I remember all 3 hangs happend about the moment
when "bios console redirection" is passing the ball to
"system console redirection".

> Slow the redirection rate down to 19.2 and see if it hangs then. 
> Please 
> let me know if that works.

Ok, I'll try (on Monday - I'd rather be close to the machine
while doing this) to slow down bios and sol speed. I suppose
I should slow down bootloader/kernel settings also, shoudn't I?

What about "Legacy OS Redirection"? Is that relevant? (RHEL)

Is PC-ANSI terminal required, or somehow better the VT-100(+)?

-- 
Tomek