Re: [libgpiod] segfault with function gpiod_chip_get_all_lines(chip, &bulk);

[Bartosz Golaszewski <brgl@xxxxxxxx>]

pt., 27 gru 2019 o 22:44 John Rose <ohimg801@xxxxxxxxx> napisał(a):
>
> SBC:    HardKernel Odroid N2 4Gb.
> OS:     Ubuntu 18.04.3 Mate' DE.
>         Linux odroid_N2 4.9.196-63 #1 SMP PREEMPT Thu Oct 17 00:44:03
> -03 2019 aarch64 aarch64 aarch64 GNU/Linux
> ------------------------------------------------------
> A basic test of the gpiod_chip_get_all_lines function.
> ------------------------------------------------------
> /*--+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+
>  * libgpio_test_03
>  *
>  *
>  *
>  */
> /*******gdb debugger
> error********************************************************************************************************
> t3st3r1@odroid_N2:~$ sudo gdb c_projects/libgpio_test_03/main
> GNU gdb (Ubuntu 8.1-0ubuntu3.2) 8.1.0.20180409-git
> Copyright (C) 2018 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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> Reading symbols from c_projects/libgpio_test_03/main...done.
> (gdb) run
> Starting program: /home/t3st3r1/c_projects/libgpio_test_03/main
> OdroidN2 -- Ubuntu 18.04.3 LTS
> libgpio_test_03
>
> gpiod_chip_open() OK.
>
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x0000007fb7fa48d0 in gpiod_line_bulk_add (line=0x555556a910,
> bulk=0x7ffffff2a0) at ../include/gpiod.h:578
> 578 bulk->lines[bulk->num_lines++] = line;
> (gdb)

The problem seems to be gone in current master. I get the following output:

---
OdroidN2 -- Ubuntu 18.04.3 LTS
libgpio_test_03

gpiod_chip_open() OK.

Exiting.
---

Bartosz