책보고 따라하고 있는데


qemu-system-arm -M realview-pb-a8 -kernel navilos.axf -S -gdb tcp:1234,ipv4 이 명령어 치고

gdb

target remote:1234


이렇게 하면 연결이 되야하는데 타임아웃이 걸리네요

아마 첫줄 qemu-system-arm -M realview-pb-a8 -kernel navilos.axf -S -gdb tcp:1234,ipv4 부터 책이랑 좀 다르게 출력되는거 같은데


xcb_connection_has_error() returned true

shared memfd open() failed: Function not implemented

이런 에러가 나오는데 혹시 어떻게 해결하는지 아시나여 영어로 쳐봐도 뭘 모르겠네요;;;


navilos.axf 는 잘 있고 우분투 18.04 버전 쓰고 있습니다.



에러전문


xcb_connection_has_error() returned true

shared memfd open() failed: Function not implemented

pulseaudio: pa_context_connect() failed

pulseaudio: Reason: Connection refused

pulseaudio: Failed to initialize PA contextaudio: Could not init `pa' audio driver

xcb_connection_has_error() returned true

shared memfd open() failed: Function not implemented

ALSA lib confmisc.c:767:(parse_card) cannot find card '0'

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory

ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory

ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory

ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or directory

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM default

alsa: Could not initialize DAC

alsa: Failed to open `default':

alsa: Reason: No such file or directory

ALSA lib confmisc.c:767:(parse_card) cannot find card '0'

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory

ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory

ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name

ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory

ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or directory

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM default

alsa: Could not initialize DAC

alsa: Failed to open `default':

alsa: Reason: No such file or directory

audio: Failed to create voice `lm4549.out'

Could not initialize SDL(No available video device) - exiting


근데 pulseaudio~~ 에러는 나오는게 정상이라고 책에 쓰여있어요


책에선 

pulseaudio: set_sink_input_volume() failed

pulseaudio: Reason: Invalid argument

pulseaudio: set_sink_mute() failed

pulseaudio: Reason: Invalid argument

에러 나오는건 정상이니까 이후에 있는게 생략인건지 없는건지 모르겠지만 저 에러는 걱정하지 말라고 하는데 저랑 에러부터가 다르네요;;