Re: [MirageOS-devel] fixing a memory leak in the tcp/ip stack

[Thomas Gazagnaire <thomas@xxxxxxxxxxxxxx>]

A quick follow-up:

The fix if that memory bug created an new issue that I've just fixed: a bad 
infinite loop might appears for some input of the `Channel.read_line` function 
in tcpip 2.4.2. Thanks to our new unit-test framework for tcpip, I've added a 
new test to be sure it will never happen again. The Channel module is used by 
`mirage-http` so this can cause all HTTP unikernels to be quite unstable if 
they receive fragmented packets.

 I'm releasing tcpip 2.4.3 with the fix and it will be in opam shortly:

https://github.com/ocaml/opam-repository/pull/4051

As usual, any contribution in term of new tests is always very welcome:

https://github.com/mirage/mirage-tcpip/tree/master/lib_test

Best,
Thomas

> On 30 Apr 2015, at 12:29, Anil Madhavapeddy <anil@xxxxxxxxxx> wrote:
> 
> Thanks Mindy and Thomas!  The live openmirage.org website has picked this up.
> 
> I've also (as discussed on the Mirage calls) set up a mirror of the site on 
> http://mirage.io.  This is intended to run the bleeding edge version of the 
> stack and will be TLS-only, so don't link to it externally just yet.
> 
> -anil
> 
>> On 30 Apr 2015, at 11:21, Thomas Gazagnaire <thomas@xxxxxxxxxxxxxx> wrote:
>> 
>> Hi all,
>> 
>> I've just released mirage-tcpip 2.4.2 (available in opam) which fixes a bad 
>> memory leak in the Channel implementation of tcpip/ip (thanks to Mindy 
>> Preston for the initial patches[1]). I've also added some memory statistics 
>> to mirage-www (in http://openmirage.org/stats/gc [2]) to check that the leak 
>> is indeed fixed.
>> 
>> Can someone update the live website with the latest version of mirage-tcpip 
>> and mirage-www?
>> 
>> Best,
>> Thomas
>> 
>> [1] https://github.com/mirage/mirage-tcpip/pull/127
>> [2] https://github.com/mirage/mirage-www/blob/master/src/stats.ml
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>> 
> 


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