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Hi,
I am having an issue with the signal-composer AGL service.
I can't run it through systemd service or manually because at startup libc somehow detects a buffer overflow.
I am running a custom AGL minimal distribution on a custom Freescale board. AGL version is Guppy 7.0.0. I have not modified any of the included configuration files in /etc directory of the package root dir, nor signal-composer sources.
I would have opened a JIRA issue but I suspect this might be related to my distribution, it being "minimal" and not a full demo platform maybe?
Included is a gdb session log of the crash, with a backtrace.
Any information about this issue would be helpful.
Thanks and best regards,
Théo Bueno.
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agl:/usr/local/lib/systemd/system# gdb /usr/bin/afb-daemon GNU gdb (GDB) 8.0 Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "arm-poky-linux-gnueabi". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/bin/afb-daemon...(no debugging symbols found)...done. (gdb) handle SIGILL nostop noprint Signal Stop Print Pass to program Description SIGILL No No Yes Illegal instruction (gdb) run --name afbd-signal-composer@6.99 --rootdir=/var/local/lib/afm/applications/signal-composer/6.99 --workdir=/home/0/app-data/signal-composer --no-httpd --ws-client=unix:/run/user/0/apis/ws/low-can --ws-client=unix:/run/user/0/apis/ws/gps --binding=/var/local/lib/afm/applications/signal-composer/6.99/lib/afb-signal-composer.so --ws-server=sd:signal-composer Starting program: /usr/bin/afb-daemon --name afbd-signal-composer@6.99 --rootdir=/var/local/lib/afm/applications/signal-composer/6.99 --workdir=/home/0/app-data/signal-composer --no-httpd --ws-client=unix:/run/user/0/apis/ws/low-can --ws-client=unix:/run/user/0/apis/ws/gps --binding=/var/local/lib/afm/applications/signal-composer/6.99/lib/afb-signal-composer.so --ws-server=sd:signal-composer [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/libthread_db.so.1". WARNING: [API signal-composer] Plugin multiple instances in searchpath will use /var/local/lib/afm/applications/signal-composer/6.99/lib/../var/unit-conversion.lua [/usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/ctl-utilities/ctl-lib/ctl-plugin.c:246,LoadFoundPlugins] WARNING: [API signal-composer] Plugin multiple instances in searchpath will use /var/local/lib/afm/applications/signal-composer/6.99/lib/../lib/plugins/gps.ctlso [/usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/ctl-utilities/ctl-lib/ctl-plugin.c:246,LoadFoundPlugins] WARNING: [API signal-composer] Plugin multiple instances in searchpath will use /var/local/lib/afm/applications/signal-composer/6.99/lib/../lib/plugins/builtin.ctlso [/usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/ctl-utilities/ctl-lib/ctl-plugin.c:246,LoadFoundPlugins] *** buffer overflow detected ***: afbd-signal-composer@6.99 terminated Program received signal SIGABRT, Aborted. __GI_raise (sig=sig@entry=6) at /usr/src/debug/glibc/2.26-r0/git/sysdeps/unix/sysv/linux/raise.c:51 51 } (gdb) bt #0 __GI_raise (sig=sig@entry=6) at /usr/src/debug/glibc/2.26-r0/git/sysdeps/unix/sysv/linux/raise.c:51 #1 0x76bcfccc in __GI_abort () at /usr/src/debug/glibc/2.26-r0/git/stdlib/abort.c:90 #2 0x76c07a24 in __libc_message (action=(do_abort | do_backtrace), fmt=<optimized out>) at /usr/src/debug/glibc/2.26-r0/git/sysdeps/posix/libc_fatal.c:181 #3 0x76c82518 in __GI___fortify_fail_abort (need_backtrace=need_backtrace@entry=true, msg=0x76cc2b68 "buffer overflow detected") at /usr/src/debug/glibc/2.26-r0/git/debug/fortify_fail.c:33 #4 0x76c82564 in __GI___fortify_fail (msg=<optimized out>) at /usr/src/debug/glibc/2.26-r0/git/debug/fortify_fail.c:44 #5 0x76c806f4 in __GI___chk_fail () at /usr/src/debug/glibc/2.26-r0/git/debug/chk_fail.c:28 #6 0x76c7fab0 in __strcpy_chk (dest=0x1 <error: Cannot access memory at address 0x1>, src=0x7effed68 "txc-binding/vehicle_speed", destlen=1993091944) at /usr/src/debug/glibc/2.26-r0/git/debug/strcpy_chk.c:30 #7 0x0042eb4c in globset_add () #8 0x00417280 in afb_export_event_handler_add () #9 0x764558a8 in afb_api_event_handler_add (closure=<optimized out>, callback=0x76453cbc <SourceAPI::onSignalEvents(void*, char const*, json_object*, afb_api*)>, pattern=<optimized out>, api=<optimized out>) at /usr/include/afb/afb-api-x3.h:778 #10 SourceAPI::addSignal (this=0x7effeef4, this@entry=0x76ffea58 <__stack_chk_guard>, id=..., event=..., depends=..., retention=retention@entry=30, unit=..., metadata=0x0, frequency=0, onReceived=0x471fa8, onReceived@entry=0x7effeeb0, getSignalsArgs=0x487830) at /usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/signal-composer-binding/source.cpp:148 #11 0x7644fb1c in Composer::loadOneSignal (this=this@entry=0x470778, apihandle=apihandle@entry=0x470598, signalJ=<optimized out>) at /usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/signal-composer-binding/signal-composer.cpp:330 #12 0x764501f4 in Composer::loadSignals (apihandle=0x470598, section=<optimized out>, signalsJ=0x47e680) at /usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/signal-composer-binding/signal-composer.cpp:351 #13 0x7645ced4 in CtlLoadSections (apiHandle=apiHandle@entry=0x470598, ctlHandle=0x470bf8, sections=<optimized out>) at /usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/ctl-utilities/ctl-lib/ctl-config.c:331 #14 0x7644e928 in Composer::loadConfig (this=<optimized out>, api=api@entry=0x470598, filepath=...) at /usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/signal-composer-binding/signal-composer.cpp:447 #15 0x7644d050 in loadConf (api=0x470598) at /usr/src/debug/agl-service-signal-composer/7.90.0-r0/git/signal-composer-binding/signal-composer-binding.cpp:255 #16 0x004102ec in ?? () Backtrace stopped: previous frame identical to this frame (corrupt stack?) (gdb)
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