Re: [Ubuntustudio-bugs] [Bug 1708027] Re: aeolus crashed with SIGSEGV in memset()

[Ross Gammon]

Hi David,

On 07/01/18 14:22, David Kastrup wrote:
> Since a crash is a pretty bad kind of problem, wouldn't that warrant a
> backport?
>

Backports are not for bug fixes. What is needed is a Stable Release Update:
https://wiki.ubuntu.com/StableReleaseUpdates

It is on my to do list, but I don't have a lot of spare time at the
moment.

Cheers,

Ross

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Title:
  aeolus crashed with SIGSEGV in memset()

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[Bug 1708027] Re: aeolus crashed with SIGSEGV in memset()

[David Kastrup]

Since a crash is a pretty bad kind of problem, wouldn't that warrant a
backport?

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Title:
  aeolus crashed with SIGSEGV in memset()

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[Bug 1708027] Re: aeolus crashed with SIGSEGV in memset()

[Ross Gammon]

Fons's fix was included in v0.9.5 (I only checked that version) which is
now in the development release (Bionic).

** Changed in: aeolus (Ubuntu)
   Status: New => Fix Released

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  aeolus crashed with SIGSEGV in memset()

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[Bug 1708027] Re: aeolus crashed with SIGSEGV in memset()

[David Kastrup]

>From the Linux audio users list:

From: Fons Adriaensen 
Subject: Re: [LAU] Trying to start Aeous gives me seg faults
Newsgroups: gmane.linux.audio.users
To: linux-audio-user-cunTk1MwBs/cejeg2xfrv2d2fqjk+...@public.gmane.org
Date: Mon, 18 Sep 2017 16:39:21 + (31 minutes, 45 seconds ago)

On Mon, Sep 18, 2017 at 07:31:41AM +0200, Hermann Meyer wrote:
 
> Am 18.09.2017 um 06:44 schrieb david:
> >Starting Aeolus from command line returns this:
> >
> >Reading '/usr/share/aeolus/stops/Aeolus/definition'
> >Reading '/home/david/.aeolus-presets'
> >Segmentation fault
>
> First shot in such cases is remove/rename config files in home
> '/home/david/.aeolus-presets'

No, this is due to recent versions of the font libs requiring
more stack space. 

In main.cc, line 253, increase the stack size of the interface
thread:

  iface->thr_start (SCHED_OTHER, 0, 0x0002);

This should solve the issue.

Ciao,

-- 
FA

A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)

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[Bug 1708027] Re: aeolus crashed with SIGSEGV in memset()

[David Kastrup]

#6 also would be consistent with me seeing this problem only after
converting my system to 64 bits: it is perfectly conceivable that this
would increase the stack size requirements.

When I started computing, 128kB would have been double the total address
space (let alone local variables).  Sigh.

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  aeolus crashed with SIGSEGV in memset()

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