Re: [Adeos-main] Problems booting after Adeos patch

[Philippe Gerum <rpm@xenomai.org>]

On Thu, 2006-09-28 at 16:23 +0200, Jan Kiszka wrote:
> J.D. Yamokoski wrote:
> > Jan Kiszka wrote:
> >> J.D. Yamokoski wrote:
> >>  
> >>> Greetings,
> >>>
> >>> I have recently run into some trouble trying to boot a custom configed
> >>> linux kernel with Adeos. During boot the system seems to have problems
> >>> with the SATA hard drives with messages like,
> >>>
> >>> ata1: slow completion (cmd ef)
> >>> ATA: abnormal status 0x0FF
> >>> ata1: command 0x25 timeout, stat 0x50 host-stat 0x24
> >>>
> >>> And then finally towards the end of the boot sequence, I get "ALERT!
> >>> /dev/sda3 does not exist. Dropping to a shell!"
> >>>
> >>> I am using a highly modified config customized for this machine
> >>> (Highlights of the config: It excludes a lot of drivers, SMP build, and
> >>> both SATA-as-SCSI-driver and the regular PCI IDE driver are enabled.)
> >>> Unpatched this customized kernel works fine. And as expected, if I use a
> >>> more general config file (one that came with my distro) the Adeos
> >>> patched kernel boots normally. Its just the combination of Adeos and
> >>> customized config that seems to be the problem. Does anything jump out
> >>> at anyone? I have include my config file with this email.
> >>>
> >>>     
> >>
> >> What I-pipe patch version are you using?
> >>
> >> Could you try with CONFIG_PCI_MSI disabled? There has been other reports
> >> on MSI issues recently, maybe yours belong to the same group.
> >>
> >> Thanks,
> >> Jan
> >>
> >>
> >> PS: Unrelated to the problem but maybe still interesting: If you plan to
> >> use Adeos/I-pipe as a real-time enabler (e.g. with Xenomai), you should
> >> switch off CONFIG_ACPI_PROCESSOR, CONFIG_CPU_FREQ, and CONFIG_APM.
> >> Recent Xenomai versions should warn you about this fact as well.
> >>
> >>   
> > That seems to have fixed the problem! The new kernel with this disabled
> > boots just fine. Thanks!
> 
> Well, I wouldn't say "fixed", it works around the bug.
> 
> > 
> > By the way, I was using I-pipe patch 2.6.15-i386-1.3-07.
> 
> Philippe, any news on the MSI issue?
> 

Nope. Unfortunately, now hw at hand that exhibits the issue, and no time
to dig it anyway.

> Jan
> 
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-- 
Philippe.