Date: Sun, 13 Mar 2016 19:11:44 +0100 From: Jan Beich <jbeich@FreeBSD.org> To: Kurt Jaeger <pi@FreeBSD.org> Cc: gecko@freebsd.org Subject: Re: firefox 45.0 (latest build) hangs, what kind of trace helps ? Message-ID: <shzu-z1r3-wny@vfemail.net> In-Reply-To: <fuvu-2sbc-wny@vfemail.net> (Jan Beich's message of "Sun, 13 Mar 2016 18:36:39 %2B0100") References: <20160313160121.GP991@fc.opsec.eu> <fuvu-2sbc-wny@vfemail.net>
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--=-=-= Content-Type: text/plain Jan Beich <jbeich@FreeBSD.org> writes: >> Is there a trace/debugging hint that helps you and the gecko team >> to debug this ? > > Try > > $ procstat -k $(pgrep firefox) > > $ ktrace firefox -no-remote -profile $(mktemp -d) > <wait for hang> > ^C > $ kdump -R | tail -20 > > $ lldb -p $(pgrep firefox) > (lldb) bt all [...] These steps are actually a wild goose chase. Firefox issues are way easier to track down as regressions by eliminating differences between working and non-working version. The first candidate is always the fragile user environment, so you need to start from a clean slate by populating a jail with X11 pass-through and trying to reproduce there. After that you can start bisecting which should determine if the issue is port-specific or due to upstream update. --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQF8BAEBCgBmBQJW5a1gXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXREQjQ0MzY3NEM3RDIzNTc4NkUxNDkyQ0VF NEM3Nzg4MzQ3OURCRERCAAoJEOTHeINHnb3b8JEH+QFaS4yVDU1PCj1uVOW3nQ+f 1fb9xaLfaIC7xbhMeevnPnz0aTZn2ihMVCRpZ7bWmPpaxrM8skgDNvAT70Vx+K3s Mu4ezT8ioz6lz0m6Kf7GoJEDrrcbuaR4l0jEGoeK0mZgDQzurdV5tS5dF4MxSiLc WcGJx0ofL0xeTTbXDEe9d/uD3Ucmy1TkgXA9RqkeQo385ro89uI8+UN47bH3DDou oFUyC9PGGV5k5RSgHWpwKZ0CpEvaffu2+eftbu/vubJUC8aTV7fnReJ6g7kGRgon 695Q+Z+WZYiV6Pl9FrYS+lFy0t1dgS9E4ImSt3AkRVRBSh/Roa9aIeq7KD2cdao= =ORie -----END PGP SIGNATURE----- --=-=-=--
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