Date: Thu, 7 Nov 2019 04:36:55 -0800 From: David Wolfskill <david@catwhisker.org> To: current@freebsd.org Subject: Segmentation fault in netstat after r354373 -> r354373 update Message-ID: <20191107123655.GQ1194@albert.catwhisker.org>
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--IjidByZJ9GyRdto8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable (I haven't started to look for a culprit yet; thought I'd let folks know about it first. -- dhw) g1-49(13.0-C)[1] uname -a FreeBSD g1-49.catwhisker.org 13.0-CURRENT FreeBSD 13.0-CURRENT #514 r354436= M/354436: Thu Nov 7 04:15:23 PST 2019 root@g1-49.catwhisker.org:/commo= n/S4/obj/usr/src/amd64.amd64/sys/CANARY amd64 g1-49(13.0-C)[2] which netstat /usr/bin/netstat g1-49(13.0-C)[3] ls -lT `!!` ls -lT `which netstat` -r-xr-sr-x 1 root kmem 160192 Nov 7 04:17:46 2019 /usr/bin/netstat g1-49(13.0-C)[4] netstat -nr Segmentation fault g1-49(13.0-C)[5] sudo netstat -nr Segmentation fault g1-49(13.0-C)[6] sudo gdb `which netstat` Password: GNU gdb (GDB) 8.3.1 [GDB v8.3.1 for FreeBSD] Copyright (C) 2019 Free Software Foundation, Inc. =2E.. Reading symbols from /usr/bin/netstat... (No debugging symbols found in /usr/bin/netstat) (gdb) run -nr Starting program: /usr/bin/netstat -nr Routing tables Internet: Destination Gateway Flags Netif Expire default 172.17.0.1 UGS wlan0 127.0.0.1 link#2 UH lo0 172.17.0.0/16 link#3 U wlan0 172.17.1.49 link#3 UHS lo0 Internet6: Destination Gateway Flags N= etif Expire ::/96 ::1 UGRS = lo0 ::1 link#2 UH = lo0 ::ffff:0.0.0.0/96 ::1 UGRS = lo0 fe80::/10 ::1 UGRS = lo0 fe80::%lo0/64 link#2 U = lo0 fe80::1%lo0 link#2 UHS = lo0 ff02::/16 ::1 UGRS = lo0 [Inferior 1 (process 1993) exited normally] So... Heisenbug? No changes directly to netstat sources (in the r354373 - r354373 interval). Looks as if libxo got a bit of an overhaul, though. Peace, david --=20 David H. Wolfskill david@catwhisker.org It's ... rich ... for Trump to accuse someone else of being a liar. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --IjidByZJ9GyRdto8 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEE4owz2QxMJyaxAefyQLJg+bY2PckFAl3ED+dfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEUy OEMzM0Q5MEM0QzI3MjZCMTAxRTdGMjQwQjI2MEY5QjYzNjNEQzkACgkQQLJg+bY2 PcnTtQgAl7OFsD+wRBiaElaLuJqBweChmFv6kgZJrU5Qvze9hji0/FVgvY/NBi3P Rhg13OaK+/KIR8JHsMPtl1G7kGtG9m30gzZrEEdC89X+IXdI3pHWO3u9p8Y3mh8m AG99FUK/l6dfmCK+y7s4IlUDRBWk1hj4FEDy+z08uTv/o4FpOHvsonAT34WUXd5L tI6ehZYPPeqZNpxusct7hN3/OwYwLIo+rnHLEF81qfMOCXQ7MFmxAu2LP4VM6Biv ePkWcerkc7GV37KvcwaCmwa3NdBzKC/ytoXUh91FQdRPfjO8512XRMYUpCDolTqq 44Ez+s7Jhs7Xdym3Fc9npel7btC8XA== =z5kc -----END PGP SIGNATURE----- --IjidByZJ9GyRdto8--
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