Re: Problems with compilation on Trisquel 5.5

[Sjoerd van Leent <svanleent@gmail.com>]

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I found out, as a response to myself that the tag guile-2.0.5 does not
share the same issues as the master branch. I will attempt to figure out
where and when the problem is introduced, but it will be helpful if anyone
knows about a change which might involve different/weird GC behavior.

Regards,
Sjoerd

2012/4/23 Sjoerd van Leent <svanleent@gmail.com>

> Dear readers,
>
> Recently I upgraded my machine to Trisquel 5.5 (x86_64).
>
> While I used Trisquel 5, I had no issues compiling guile, however now it
> appears all hell broke losoe.
>
> When compiling I get to the generation stage of GEN guile-procedures.texi.
> The stage ends up with a Segmentation fault. I have been debugging the
> lt_guile process with gdb, and some interesting things happened. The
> process received SIGPWR and SIGXCPU signals (in a loop), and eventually
> ends up with a SIGSEGV message from the procedure: GC_generic_malloc_inner.
>
> I ended up attempting to build the bdw-gc from scratch and link in the 7.1
> stable version, but resulting in the same situation.
>
> I have no idea where the problem initiates, as it appears to be happening
> in a certain time interval (probably thread switching) and there is no way
> to pinpoint the problem in scheme itself. Even just looping around
> generates this error.
>
> Now, when I went through the make output I noticed some interesting things
> while compiling libguile_2.2_la-weak-table.lo:
>
> weak-table.c: In function 'move_disappearing_links':
> weak-table.c:164:7: warning: passing argument 1 of
> 'GC_unregister_disappearing_link' from incompatible pointer type [enabled
> by
> default]
>
> /usr/local/include/gc/gc.h:771:12: note: expected 'void **' but argument
> is of type 'scm_t_bits *'
> weak-table.c:165:7: warning: passing argument 1 of
> 'GC_general_register_disappearing_link' from incompatible pointer type
> [enabled by
> default]
>
> /usr/local/include/gc/gc.h:744:12: note: expected 'void **' but argument
> is of type 'scm_t_bits *'
> weak-table.c:175:7: warning: passing argument 1 of
> 'GC_unregister_disappearing_link' from incompatible pointer type [enabled
> by
> default]
>
> /usr/local/include/gc/gc.h:771:12: note: expected 'void **' but argument
> is of type 'scm_t_bits *'
> weak-table.c:176:7: warning: passing argument 1 of
> 'GC_general_register_disappearing_link' from incompatible pointer type
> [enabled by
> default]
>
> /usr/local/include/gc/gc.h:744:12: note: expected 'void **' but argument
> is of type 'scm_t_bits *'
>
> And although perhaps less important, when compiling libguile_2.2_la-gc.lo:
>
> gc.c:212:1: warning: 'GC_get_free_space_divisor' defined but not used
> [-Wunused-function]
>
> As I can't see anyone (yet) having this problem, I consider it might be
> rather unique, but I really would like to know what possibly could be going
> wrong and where I should start debugging.
>
>
>
>

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