2007-09-12 13:00:52

by tx tox

[permalink] [raw]
Subject: RE: boot hangs with SMP, USB storage, and ACPI

On 12 Lip 2006, 00:41, Eric Cooper <[email protected]> wrote:
> When I try toboota 2.6.17 kernel compiled forSMP(hyperthreading),
> it hangs early in thebootsequence (after printing "FreeingSMP
> alternatives"). The issue seems to be an interaction between a
> USB-storage device (an empty flash card reader built into the
> monitor) andACPI.
>
> It boots fine if I do any one of these:
> - physically disconnect theUSBdevice
> - disableUSBsupport in the BIOS
> -bootwithacpi=ht
> but none of these is completely satisfactory.
>
> I'll happily supply more details, run tests, etc. if anyone is
> interested in looking at this. Thanks, and please CC me if you
> respond.
>
> --
> Eric Cooper e c c @ c m u . e d u


I have exactly the same problem
This happens whenever i boot machine with reader on
or usbstick plugged in.
It happens with newer kernels as well.
It is little bit annoying to reset machine just because i forgot
to switch off the printer which has card reader equipped ;)
some goofing with printks suggests ACPI as a place whenre it freezes.
But i got no proof for that.
Any suggestions are welcome.

Regards
/TomCat


2007-09-15 09:52:37

by Andrew Morton

[permalink] [raw]
Subject: Re: boot hangs with SMP, USB storage, and ACPI


(cc restored. Please always do reply-to-all)

(linux-acpi cc added)

On Wed, 12 Sep 2007 15:00:41 +0200 "tx tox" <[email protected]> wrote:

> On 12 Lip 2006, 00:41, Eric Cooper <[email protected]> wrote:
> > When I try toboota 2.6.17 kernel compiled forSMP(hyperthreading),
> > it hangs early in thebootsequence (after printing "FreeingSMP
> > alternatives"). The issue seems to be an interaction between a
> > USB-storage device (an empty flash card reader built into the
> > monitor) andACPI.
> >
> > It boots fine if I do any one of these:
> > - physically disconnect theUSBdevice
> > - disableUSBsupport in the BIOS
> > -bootwithacpi=ht
> > but none of these is completely satisfactory.
> >
> > I'll happily supply more details, run tests, etc. if anyone is
> > interested in looking at this. Thanks, and please CC me if you
> > respond.
> >
> > --
> > Eric Cooper e c c @ c m u . e d u
>
>
> I have exactly the same problem
> This happens whenever i boot machine with reader on
> or usbstick plugged in.
> It happens with newer kernels as well.
> It is little bit annoying to reset machine just because i forgot
> to switch off the printer which has card reader equipped ;)
> some goofing with printks suggests ACPI as a place whenre it freezes.
> But i got no proof for that.
> Any suggestions are welcome.

Could you both please test 2.6.22 (or 2.6.23, soon) and if the bug is still
present, raise a report against acpi at bugzilla.kernel.org?

We'd be particularly internested in knowing if any earlier 2.6 kernel
worked OK and if so, which version(s).

Thanks.

2007-09-15 15:14:06

by Eric Cooper

[permalink] [raw]
Subject: Re: boot hangs with SMP, USB storage, and ACPI

On Sat, Sep 15, 2007 at 02:52:08AM -0700, Andrew Morton wrote:
> Could you both please test 2.6.22 (or 2.6.23, soon) and if the bug is still
> present, raise a report against acpi at bugzilla.kernel.org?
>
> We'd be particularly internested in knowing if any earlier 2.6 kernel
> worked OK and if so, which version(s).

I tried this with prebuilt Debian package linux-image-2.6.21-2-686
from "testing" and linux-image-2.6.22-2-686 from "unstable".

The problem is still present in both versions. Will file a bugzilla
report as requested.

--
Eric Cooper e c c @ c m u . e d u