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SubjectRe: boot failure, "DWARF2 unwinder stuck at 0xc0100199"
On Mon, 21 Aug 2006 09:47:18 -0700
"Randy.Dunlap" <> wrote:

> > The 'stuck' unwinder issue at hand already has a fix, though planned to
> > be merged for 2.6.19 only. The crash after switching to the legacy
> > stack trace code is bad, though, but has little to do with the unwinder
> > additions/changes. The way that code reads the stack is just
> > inappropriate in contexts where things must be expected to be broken.
> "merged for 2.6.19" meaning:
> - in (before) 2.6.19, or
> - after 2.6.19 is released
> If "after," then it will likely need to be added to -stable also,
> so it might as well go in "before" 2.6.19 is released.


Guys, this unwinder change has been quite problematic. We really cannot
let this badness out into 2.6.18 - it degrades our ability to debug every
subsystem in the entire kernel. Would marking it CONFIG_BROKEN get us back
to 2.6.17 behaviour?

Has anyone even tried to reproduce Bruce's crash?


argh, ide-scsi. That driver's main use nowadays is for testing the
oops-handling code. Please share .config, machine description and compiler

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