Greetings,
I have been using a scroll wheel in p9p's acme on OS-X for some time without
any problems.
This raises a few questions about your setup:

1) Are you sure you are running the new, native gui version? Your hg info
suggests this is the case, but I want to make sure you recompiled the
binaries between now and then.
2) What kind of mouse is is?
3) Does the scroll wheel behave normally in other apps on OS-X?
4) Are you using any non-standard mouse drivers?
5) If you are on a laptop, does scrolling with the touchpad cause this
error?

--underspecified

On Wed, Oct 8, 2008 at 5:36 PM, Christian Kellermann <
Christian.Kellermann@nefkom.net> wrote:

> Dear List,
>
> I am experiencing a strange behaviour of p9p acme: When I scroll
> with the mouse wheel acme just hangs. The console prints acme: bad
> rpc tag 2 (no one waiting on that tag)
>
> attaching with gdb says:
>
> 0x9526a1b5 in read$UNIX2003 ()
> (gdb) bt
> #0  0x9526a1b5 in read$UNIX2003 ()
> #1  0x000089e7 in threadmain ()
> #2  0x0001aeac in threadmainstart (v=0x0) at thread.c:699
> #3  0x0001a808 in threadstart (y=552960, x=0) at thread.c:95
>
> and detaching makes acme crash completely with
>
> settag/send tag 3: Broken pipe
> settag/send tag 3: Broken pipe
> Oct  8 10:27:23.908 write error: Broken pipe
> settag/send tag 3: Broken pipe
>
> Has any one else seen this? It feels like a race condition since I
> cannot reproduce it reliably other than opening a window with some
> content and scrolling around with the mouse wheel. I have tried to
> pull from the repo but it seems that
>
> changeset:   2915:dd72218f97d9
> tag:         tip
> user:        Russ Cox <rsc@swtch.com>
> date:        Thu Aug 14 10:29:29 2008 -0400
> summary:     rc: fix local variables in functions
>
> is the latest tip.
>
> What can I do to help debugging this? It is really an annoying bug
> I must say.
>
> Thanks for your insights,
>
> Christian
>
> --
> You may use my gpg key for replies:
> pub  1024D/47F79788 2005/02/02 Christian Kellermann (C-Keen)
>