Re: libax25 axio_flush bug hangs node and fix

From: Tomi Manninen OH2BNS (jjeluafh@e-catv.ne.jp)
Date: Wed Oct 16 2002 - 15:56:14 EEST

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    On Wed, 16 Oct 2002, Craig Small wrote:

    > On Tue, Oct 15, 2002 at 11:52:11AM +0200, Tihomir Heidelberg wrote:
    > > I noticed that my awznode (a variant of linux node) hangs and
    > > use maximum CPU when user starts any external command and
    > > incoming AX.25 connection get broken.
    >
    > Damn, i thought this been fixed in 10. Tomi and somoene else were
    > discussing it, I'll need their help again.

    No, actually the bug was introduced in .10 ...

    Anyway, I spent last evening thinking back what was discussed with Jeroen
    last spring and then cleaning up his last patch a bit. I will send that to
    you in a few days.

    Now, the problem is that this patch will revert the "fix" that was tried
    in 10. Jeroen tried to fix a problem in the applications with a fix in the
    lib. After the discussion we finally agreed that the .9 behaviour is
    correct, only a few relatively minor bugs needed to be squashed. The "big"
    bug is in the applications using libax25io and _they_ need to be fixed.

    So finally yesterday I also started to really think how to fix node. The
    fix won't be trivial but I'll try and produce a working fix soon. Gosh...
    That would be the first new node release since -99 ...

    (If you want a quick fix, then Tihomir's patch seems ok to me. But I
    really wouldn't like to see that in an official release.)

    -- 
    Tomi Manninen           Internet:  dkmsymb.lxdzqj@mail.dy.fi
    OH2BNS                  AX.25:     qixrbr@antisearch.net
    KP20ME04                Amprnet:   qeudzbf.wzbqsxxb@technopolis.fi
    

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