On Mon, Mar 31, 2014 at 12:28 AM, Tom Gundersen <[email protected]> wrote: > On Sun, Mar 30, 2014 at 10:18 PM, Kai Krakow <[email protected]> wrote: >> Tom Gundersen <[email protected]> schrieb: >> >>> On Sun, Mar 30, 2014 at 6:07 PM, Kai Krakow <[email protected]> wrote: >>>> Tom Gundersen <[email protected]> schrieb: >>>> >>>>>> Starting it from command line shows: >>>>>> >>>>>> # /usr/lib/systemd/systemd-networkd >>>>>> enp4s0: link is up >>>>>> enp4s0: carrier on >>>>>> segmentation fault (core dumped) >>>>> >>>>> If you could reproduce this with debug symbols included, that would be >>>>> very helpful (I cannot reproduce it here). >>>> >>>> I managed to get at least this backtrace. Somehow gdb did not autoload >>>> the symbols for systemd from /usr/lib/debug/usr/lib/systemd... >>>> >>>> It is probably more helpful now (at least I hope). >>>> >>>> #0 0x0000003c49a82a7d in __libc_calloc (n=<optimized out>, >>>> elem_size=<optimized out>) at malloc.c:3172 >>>> av = 0x3c49da9640 <main_arena> >>>> oldtop = 0x6884d0 >>>> p = <optimized out> >>>> bytes = 88 >>>> sz = 88 >>>> csz = <optimized out> >>>> oldtopsize = 23344 >>>> mem = 0x6715f0 >>>> clearsize = <optimized out> >>>> nclears = <optimized out> >>>> d = <optimized out> >>>> hook = <optimized out> >>>> __func__ = "__libc_calloc" >>> >>> Hm, so the segfault happens in glibc... It is triggered by us calling >>> calloc(1, 88), which I think is a supported thing to do ;) At least as >>> far as I can tell this is not a bug on our side... >> >> BTW: It works when running through valgrind: >> >> ==6041== Memcheck, a memory error detector >> ==6041== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al. >> ==6041== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info >> ==6041== Command: /usr/lib/systemd/systemd-networkd >> ==6041== >> ==6041== Conditional jump or move depends on uninitialised value(s) >> ==6041== at 0x3C49617AB6: index (strchr.S:55) >> ==6041== by 0x3C49607A12: expand_dynamic_string_token (dl-load.c:431) >> ==6041== by 0x3C49608304: _dl_map_object (dl-load.c:2299) >> ==6041== by 0x3C4960181D: map_doit (rtld.c:626) >> ==6041== by 0x3C4960E985: _dl_catch_error (dl-error.c:177) >> ==6041== by 0x3C496010EF: do_preload (rtld.c:815) >> ==6041== by 0x3C496039D7: dl_main (rtld.c:1629) >> ==6041== by 0x3C496152B7: _dl_sysdep_start (dl-sysdep.c:241) >> ==6041== by 0x3C49604E94: _dl_start (rtld.c:331) >> ==6041== by 0x3C49601637: ??? (in /lib64/ld-2.17.so) >> ==6041== >> ==6041== Conditional jump or move depends on uninitialised value(s) >> ==6041== at 0x3C49617ABB: index (strchr.S:58) >> ==6041== by 0x3C49607A12: expand_dynamic_string_token (dl-load.c:431) >> ==6041== by 0x3C49608304: _dl_map_object (dl-load.c:2299) >> ==6041== by 0x3C4960181D: map_doit (rtld.c:626) >> ==6041== by 0x3C4960E985: _dl_catch_error (dl-error.c:177) >> ==6041== by 0x3C496010EF: do_preload (rtld.c:815) >> ==6041== by 0x3C496039D7: dl_main (rtld.c:1629) >> ==6041== by 0x3C496152B7: _dl_sysdep_start (dl-sysdep.c:241) >> ==6041== by 0x3C49604E94: _dl_start (rtld.c:331) >> ==6041== by 0x3C49601637: ??? (in /lib64/ld-2.17.so) >> ==6041== >> ==6041== Invalid read of size 8 >> ==6041== at 0x40C617: rtnl_message_parse (rtnl-message.c:1090) >> ==6041== by 0x40CB11: sd_rtnl_message_rewind (rtnl-message.c:1276) >> ==6041== by 0x40CDA4: socket_read_message (rtnl-message.c:1213) >> ==6041== by 0x417DE1: sd_rtnl_process (sd-rtnl.c:274) >> ==6041== by 0x4180C2: io_callback (sd-rtnl.c:764) >> ==6041== by 0x415C9D: source_dispatch (sd-event.c:1943) >> ==6041== by 0x416500: sd_event_run (sd-event.c:2225) >> ==6041== by 0x416A47: sd_event_loop (sd-event.c:2244) >> ==6041== by 0x40401B: main (networkd.c:108) >> ==6041== Address 0x4cd28e8 is 0 bytes after a block of size 264 alloc'd >> ==6041== at 0x4A07462: calloc (vg_replace_malloc.c:593) >> ==6041== by 0x40C59E: rtnl_message_parse (rtnl-message.c:1076) >> ==6041== by 0x40CB11: sd_rtnl_message_rewind (rtnl-message.c:1276) >> ==6041== by 0x40CDA4: socket_read_message (rtnl-message.c:1213) >> ==6041== by 0x417DE1: sd_rtnl_process (sd-rtnl.c:274) >> ==6041== by 0x4180C2: io_callback (sd-rtnl.c:764) >> ==6041== by 0x415C9D: source_dispatch (sd-event.c:1943) >> ==6041== by 0x416500: sd_event_run (sd-event.c:2225) >> ==6041== by 0x416A47: sd_event_loop (sd-event.c:2244) >> ==6041== by 0x40401B: main (networkd.c:108) >> ==6041== >> ==6041== Invalid write of size 8 >> ==6041== at 0x40C62E: rtnl_message_parse (rtnl-message.c:1093) >> ==6041== by 0x40CB11: sd_rtnl_message_rewind (rtnl-message.c:1276) >> ==6041== by 0x40CDA4: socket_read_message (rtnl-message.c:1213) >> ==6041== by 0x417DE1: sd_rtnl_process (sd-rtnl.c:274) >> ==6041== by 0x4180C2: io_callback (sd-rtnl.c:764) >> ==6041== by 0x415C9D: source_dispatch (sd-event.c:1943) >> ==6041== by 0x416500: sd_event_run (sd-event.c:2225) >> ==6041== by 0x416A47: sd_event_loop (sd-event.c:2244) >> ==6041== by 0x40401B: main (networkd.c:108) >> ==6041== Address 0x4cd28e8 is 0 bytes after a block of size 264 alloc'd >> ==6041== at 0x4A07462: calloc (vg_replace_malloc.c:593) >> ==6041== by 0x40C59E: rtnl_message_parse (rtnl-message.c:1076) >> ==6041== by 0x40CB11: sd_rtnl_message_rewind (rtnl-message.c:1276) >> ==6041== by 0x40CDA4: socket_read_message (rtnl-message.c:1213) >> ==6041== by 0x417DE1: sd_rtnl_process (sd-rtnl.c:274) >> ==6041== by 0x4180C2: io_callback (sd-rtnl.c:764) >> ==6041== by 0x415C9D: source_dispatch (sd-event.c:1943) >> ==6041== by 0x416500: sd_event_run (sd-event.c:2225) >> ==6041== by 0x416A47: sd_event_loop (sd-event.c:2244) >> ==6041== by 0x40401B: main (networkd.c:108) >> ==6041== >> enp4s0: link is up >> enp4s0: carrier on >> enp4s0: DHCPv4 address 192.168.4.45/24 via 192.168.4.254 >> enp4s0: link configured > > Thanks, that's useful. I'll have a look.
Steven's patch should have fixed this issue (the invalid read/write, no idea about "Conditional jump or move depends on uninitialised value(s)". Care to try again? Cheers, Tom _______________________________________________ systemd-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/systemd-devel
