Date: Tue, 7 Mar 2023 23:31:58 +0100 From: Peter <pmc@citylink.dinoex.sub.org> To: Ed Maste <emaste@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: 13.2-STABLE: vlc does not work (SEGV_MAPERR) Message-ID: <ZAe7XhKb33W7noIE@disp.intra.daemon.contact> In-Reply-To: <CAPyFy2AVmNWL_mg3RCF0W=Sx6UtaO2OTwdH4ZwxyqEXFbqTR=g@mail.gmail.com> References: <ZAX1TClTT3oMuoWU@disp.intra.daemon.contact> <CAPyFy2AVmNWL_mg3RCF0W=Sx6UtaO2OTwdH4ZwxyqEXFbqTR=g@mail.gmail.com>
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On Tue, Mar 07, 2023 at 03:43:15PM -0500, Ed Maste wrote:
! On Mon, 6 Mar 2023 at 09:18, Peter <pmc@citylink.dinoex.sub.org> wrote:
! >
! > Problem:
! > Some 1 or 2 minutes into the flight, vlc does continue to play A+V,
! > but the GUI does not react and does not get refreshed anymore. At
! > the same time, coredumps are generated (quite a lot of them).
!
! I think I saw somewhere that you reported turning off ASLR avoids the problem.
Seems that worked ;)
! Can you try tagging the binary to opt out of ASLR and see if it then works:
! # elfctl -e +noaslr /usr/local/bin/vlc
I could, but I prefer to do this instead and have it logged rightaway:
diff --git a/multimedia/vlc/Makefile b/multimedia/vlc/Makefile
index 4529d05caea5..c3df51cd2170 100644
--- a/multimedia/vlc/Makefile
+++ b/multimedia/vlc/Makefile
@@ -27,6 +27,8 @@ RUN_DEPENDS= ffmpeg>=3.4.1,1:multimedia/ffmpeg
USES= compiler:c++17-lang cpe desktop-file-utils gettext-tools gmake gnome \
iconv:wchar_t libtool localbase pathfix pkgconfig tar:xz
+USES+= elfctl
+ELF_FEATURES+= +noaslr:bin/.libs/vlc
CPE_VENDOR= videolan
Looks good so far. The effect happens randomly in about 80% of
invocations (no idea about when and why), so no guarantee, but I don't
see reason why it shouldn't work.
I'm going to do the same now for java + node + libreoffice, and then
engage the allow_wx=0 again.
More interesting question is: what is actually going wrong with the
vlc binary? To get to a clue about what else might be concerned...
cheerio,
PMc
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