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SubjectRe: [PATCH 5/5] ONLY-APPLY-IF-STILL-FAILING Revert 373c0a7e, 8aa7e847: Fix congestion_wait() sync/async vs read/write confusion
On Tuesday 27 October 2009, KOSAKI Motohiro wrote:
> Oops. no, please no.
> 8aa7e847 is regression fixing commit. this revert indicate the
> regression occur again.
> if we really need to revert it, we need to revert 1faa16d2287 too.
> however, I doubt this commit really cause regression to iwlan. IOW,
> I agree Jens.

This is not intended as a patch for mainline, but just as a test to see if
it improves things. It may be a regression fix, but it also creates a
significant change in behavior during swapping in my test case.
If a fix is needed, it will probably by different from this revert.
Please read:

This mail has some data:

> I hope to try reproduce this problem on my test environment. Can anyone
> please explain reproduce way?

Please see my mails in this thread for bug #14141:

You will probably need to read some of them to understand the context of
the two mails linked above.

The most relevant ones are (all from the same thread; not sure why gmane
gives such weird links):

> Is special hardware necessary?

Not special hardware, but you may need an encrypted partition and NFS; the
test may need to be modified according to the amount of memory you have.
I think it should be possible to reproduce the freezes I see while ignoring
the SKB allocation errors as IMO those are just a symptom, not the cause.
So you should not need wireless.

The severity of the freezes during my test often increases if the test is
repeated (without rebooting).


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