[darcs-users] unique features + exponential time issue

Alexander Staubo alex at purefiction.net
Sun Oct 21 20:20:57 UTC 2007


On 10/21/07, Eric Y. Kow <eric.kow at gmail.com> wrote:
> Well, on the bugtracker, there is
>    http://bugs.darcs.net/issue437
[snip]
> The one key symptom is this that scp and sftp will just hang with 0% CPU
> usage.

Did you strace/ktrace or attach to the processes at the moment of
hanging? It has been months since I tried, and as I recall, they were
essentially just waiting on select().

It would make sense build an isolated test case for this, in Haskell.
Something that set up ssh in control master mode and repeatedly
invoked scp and/or sftp.

Alexander.


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