Segfaults when using readline ...

Segfaults when using readline ...

[rm]

Hello,

my latest compile of guile (checked out from CVS
on Tuseday) segfaults when used with readline activated.
Has anybody experienced this too?
Top of the backtrace is below (any output will trigger
segmentation violation).

 Ralf Mattes


ralf@calvin:~$ gdb -q guile
(gdb) r
Starting program: /usr/local/bin/guile
#<directory (guile-user) 8051f30>
guile> (version)guile> (version)^M

Program received signal SIGSEGV, Segmentation fault.
0x4007c049 in sf_fill_input (port=0x40245620) at vports.c:121
121         *pt->read_buf = SCM_CHAR (ans);
(gdb) bt
#0  0x4007c049 in sf_fill_input (port=0x40245620) at vports.c:121
#1  0x40065f14 in scm_fill_input (port=0x40245620) at ports.c:892
#2  0x40065f7a in scm_getc (port=0x40245620) at ports.c:912
#3  0x4006c829 in scm_flush_ws (port=0x40245620, eoferr=0x0) at read.c:188
#4  0x4006c761 in scm_read (port=0x2574) at read.c:155
#5  0x40044703 in scm_deval (x=0x40289688, env=0x40289690) at eval.c:3174
#6  0x4004519d in scm_dapply (proc=0x4028a190, arg1=0x2974, args=0x40289690)
    at eval.c:3678
#7  0x4003f984 in scm_apply (proc=0x4028a190, arg1=0x2974, args=0x2974)
    at eval.c:3475
#8  0x4003f69c in scm_call_0 (proc=0x4028a190) at eval.c:3329
#9  0x4003516f in scm_dynamic_wind (in_guard=0x4028a1d0, thunk=0x4028a190,
    out_guard=0x4028a148) at dynwind.c:128
#10 0x40044703 in scm_deval (x=0x40293568, env=0x4028a228) at eval.c:3174
#11 0x40041f6e in scm_deval (x=0x4028a2e0, env=0x4028a328) at eval.c:2253
#12 0x400436dd in scm_deval (x=0x40250600, env=0x4028a390) at eval.c:2882
#13 0x4004519d in scm_dapply (proc=0x4028a438, arg1=0x2974, args=0x4028a390)
    at eval.c:3678
#14 0x40042e82 in scm_deval (x=0x4028a438, env=0x4028a3c8) at eval.c:2637
#15 0x400436dd in scm_deval (x=0x4028a528, env=0x4028a580) at eval.c:2882
#16 0x40045115 in scm_dapply (proc=0x4028a5a8, arg1=0x2974, args=0x4028a580)
    at eval.c:3675
#17 0x4003f984 in scm_apply (proc=0x4028a5a8, arg1=0x2974, args=0x2974)
...
                                                                       




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Segfaults when using readline ...

[Han-Wen Nienhuys]

rm@fabula.de writes:
> Hello,
> 
> my latest compile of guile (checked out from CVS
> on Tuseday) segfaults when used with readline activated.
> Has anybody experienced this too?
> Top of the backtrace is below (any output will trigger
> segmentation violation).

Dunno, but it seems related to the port code, and I have been toying
with those. I'll have a look over the bugs this weekend to see if
they're "mine".

-- 

Han-Wen Nienhuys   |   hanwen@cs.uu.nl   |   http://www.cs.uu.nl/~hanwen 


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Re: Segfaults when using readline ...

[Mikael Djurfeldt]

Han-Wen Nienhuys <hanwen@cs.uu.nl> writes:

> rm@fabula.de writes:
> > Hello,
> > 
> > my latest compile of guile (checked out from CVS
> > on Tuseday) segfaults when used with readline activated.
> > Has anybody experienced this too?
> > Top of the backtrace is below (any output will trigger
> > segmentation violation).
> 
> Dunno, but it seems related to the port code, and I have been toying
> with those. I'll have a look over the bugs this weekend to see if
> they're "mine".

It seems like a line in vports.c was missing after the
scm_new_port_table_entry change.

I fixed it yesterday:

2002-08-15  Mikael Djurfeldt  <mdj@linnaeus>

	* vports.c (scm_make_soft_port): Initialize pt variable.

Best regards,
Mikael


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