Big problems with 7.1 locking up :-(
Pete French
petefrench at ticketswitch.com
Fri Jan 16 07:40:16 PST 2009
> If you do INVARIANTS + WITNESS + WITNESS_SKIPSPIN, that should be good.
> WITNESS does a number of things, including tracking (and being judgemental
> about) lock order. One nice side effect of that tracking is that we keep
> track of a lot more lock state explicitly, so DDB's "show allocks", "show
> locks", etc, commands can build on that. "show lockedvnods" works without
> WITNESS, though, so your results so far suggest this is likely not related to
> vnode locking.
Right, I've gone back to my DEBUG kernel which has a lot of options in it,
including all the above. It has locked almost immediately luckily, so
now I have it sitting at the debugger prompt. The output from 'show alllocks'
is here:
http://toybox.twisted.org.uk/~pete/71_show_alllocks.png
Which of these are worth tracing ?
-pte.
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