[erlang-questions] erlang-questions Digest, Vol 151, Issue 14

satoshi kinoshita <>
Fri Feb 7 02:31:37 CET 2014


> Also keep in mind that the =memory section lists it in bytes while =proc
> sections list heap in words.
>
> Lukas

Hi Lukas,

Thank you for the information.
Then sum of heaps of all processes are less than 100M words.
That is less than 400M bytes(I'm using R11B-5 32bit beam).

I'm afraid there is a still big gap between this and processes_used 1.6G in
erl_crash.dump.


Maybe I'm misunderstanding something:).

Thanks a lot,
Kinoshita

-------------------------------------------------------------------------------------------------------------
On Thu, Feb 6, 2014 at 6:35 AM, satoshi kinoshita <> wrote:

> Does any one know some more detail information for OTP-7132?
>
>
> --- http://www.erlang.org/doc/apps/erts/notes.html#id114389 ----
> The emulator could under rare circumstances crash while garbage
collecting.
>
> Own Id: OTP-7132
> ------------------------------
>
> ----------------------------------
> >
> > We're still using R11B-5 and having a crash while doing GC on a process.
> > Though erl_crash.dump is reporting almost 2GB was used for "processes",
> >
> > top/vmstat is just reporting less than 1GB for beam.smp.
> >
> > It is also strange to me that sum of heap and OldHeap for all processes
> > are less than 100M, but processes_used is almost 1.6G.
> >
> > I don't know OTP-7132 is related. Any information will be appreciated.
> >
> > Thanks,
> > Kinoshita
> >
> >
> > --------------------------------------------------------------------
> > % { grep +heap: erl_crash.dump |cut -d' ' -f2 |tr "\n" +; echo 0; }|bc
> > 46165303
> > % { grep OldHeap: erl_crash.dump |cut -d' ' -f2 |tr "\n" +; echo 0; }|bc
> > 52591961
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