On 7/15/07, Timo Lindemann <[email protected]> wrote:
David Brownell wrote:
> On Thursday 12 July 2007, Satyam Sharma wrote:
>
> Note that hangs in that file almost always mean "your BIOS is goofy".
> Hunt for BIOS settings related to USB, and change them.
This laptop's BIOS only offers "legacy support" enabled or disabled,
both of which lead to frozen kernel. I will investigate whether the GIT
tree freezes at the same point.
Perhaps you could try updating your BIOS, if possible / applicable (?)
>>> after this, kernel apparently goes into busy waiting (fans gradually
>>> turn louder) and hangs indefinitely. I have also made sure that writel
>>> (in linux/include/asm/io.h) really is entered, but never returns.
>
> Does the current kernel.org GIT tree do the same thing? A bunch
> of USB patches were recently merged, including ISTR one in that
> area ...
It does the same thing, git5, that is. Sorry I took so long, but I didnt
get to testing this earlier.
It is just odd that up to (not including) the 2.6.21-series every kernel
boots, and after that, they just freeze.
I am kinda stumped here.
Hey, just try git-bisect already :-)
In fact, you can first try by just reverting / un-applying that patch that
you initially had a suspicion on. Or, because you've already spent
some time tracking down the issue, you could simply go through the
git history of that file / subsystem in question and play around reverting
individual patches that you find suspicious -- but really, there's no need
to try and be cute with this: you could simply do a git-bisect (say
between 2.6.20 and 2.6.21) and find the offending patch (or at least the
one that un-hides the bug) that makes the boot fail ...
[ BTW you haven't sent your dmesg / boot-time output ... if it isn't
getting saved to disk, you could try serial / netconsole, copy it by
hand, or simply take a photo and post it here. ]
Cheers,
Satyam
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