@levente (and maybe @herrtimson), I set up a new Ubuntu MATE system, and in the process realized that your segfault in /lib/ld-linux-armhf.so.3 is a symptom of bug 1576432. That's where gdb fails not only for Firefox but even a simple helloworld program. The workaround there is to install libc6-dbg, which will allow you to see one of the other two crash signatures that we still don't have a solution for.
@Chituc, By waiting a couple days on my Pi 3 I managed to make a gcc-4.9 build of Firefox 59.0.1, which then crashes on strd r2, r3, [r1]. I'm now thinking that this startup crash may be more nuanced than being specific to Ubuntu 16.04 or gcc-5.4. In fact, the Launchpad builds are now showing something odd: While the 59.0.1 14.04 build that we've talked about gets all the way to the Skia SIGILL, the recent 59.0.2 14.04 build from https://launchpad.net/ubuntu/trusty/armhf/firefox/59.0.2+build1-0ubuntu0.14.04.1 segfaults on the strd too. At least with a custom build I'm now able to get accurate debug symbols. With the TUI I inspected the source at each level of this stack trace: #0 0x717c4bc8 in JS::Value::setObjectNoCheck (obj=0x67d62160, this=<optimized out>) at /home/jdonald/firefox-59.0.1+build1/obj-arm-linux-gnueabihf/dist/include/js/Value.h:380 #1 JS::Value::setObject (obj=..., this=<optimized out>) at /home/jdonald/firefox-59.0.1+build1/obj-arm-linux-gnueabihf/dist/include/js/Value.h:375 #2 js::MutableWrappedPtrOperations<JS::Value, JS::MutableHandle<JS::Value> >::setObject (obj=..., this=<synthetic pointer>) at /home/jdonald/firefox-59.0.1+build1/obj-arm-linux-gnueabihf/dist/include/js/Value.h:1362 #3 mozJSComponentLoader::Import (this=this@entry=0x67a08000, registryLocation=..., targetValArg=..., targetValArg@entry=..., cx=cx@entry=0x76a56000, optionalArgc=optionalArgc@entry=0 '\000', retval=retval@entry=...) at /home/jdonald/firefox-59.0.1+build1/js/xpconnect/loader/mozJSComponentLoader.cpp:980 #4 0x717e8c64 in nsXPCComponents_Utils::Import (this=<optimized out>, registryLocation=..., targetObj=..., cx=0x76a56000, optionalArgc=0 '\000', retval=...) at /home/jdonald/firefox-59.0.1+build1/js/xpconnect/src/XPCComponents.cpp:2297 #5 0x7119c544 in NS_InvokeByIndex (that=0x1, methodIndex=0, paramCount=1742086496, params=0x7effb9f8) at /home/jdonald/firefox-59.0.1+build1/xpcom/reflect/xptcall/md/unix/xptcinvoke_arm.cpp:413 #6 0x0000001e in ?? () (and ran disas /r 0x717c4bc8,... to confirm that this symbol-laden debug session was still hitting strd r2, r3, [r1]) The most suspicious code is actually the XPCOM invocation. The armhf- specific assembly in https://hg.mozilla.org/mozilla-central/raw- file/tip/xpcom/reflect/xptcall/md/unix/xptcinvoke_arm.cpp is worrisome. It has no way of knowing whether registers d16 through d31 are available, so may allocate the wrong amount of stack space and clobber extra registers when mixing -mfpu=vfpv3-d16 with -mfpu=neon. The code in xptcinvoke_aarch64.cpp is completely different and looks more robust. Thus, if anyone is trying to set up a build environment on Ubuntu 14.04 Trusty, keep in mind you might still hit the strd r2, r3, [r1] SIGSEGV. On Bionic: the 59.0.1 18.04 build from Launchpad was okay in this regard, while the 59.0.2 18.04 build hasn't been posted yet so fingers crossed that it does not regress in the same way. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1711337 Title: Firefox crashes at start on armv7L after 55.0.1 update Status in Mozilla Firefox: Expired Status in firefox package in Ubuntu: Confirmed Bug description: Firefox always crashes when launched after the 55.0.1 update on an Orange Pi PC Plus (a single-board computer similar to a Raspberry Pi), even in safe mode. I did a fresh install of Armbian (a Ubuntu Xenial 16.04 re-spin for ARM single-board computer) on a similar board (Orange Pi Plus 2e), installed Firefox and experienced the same problem--it won't load without crashing. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: firefox 55.0.1+build2-0ubuntu0.16.04.2 Uname: Linux 3.4.113-sun8i armv7l AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25. ApportVersion: 2.20.1-0ubuntu2.10 Architecture: armhf AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jim 1138 F.... pulseaudio /dev/snd/controlC0: jim 1138 F.... pulseaudio BuildID: 20170814194718 Card0.Amixer.info: Card hw:0 'audiocodec'/'audiocodec' Mixer name : '' Components : '' Controls : 12 Simple ctrls : 12 Card1.Amixer.info: Card hw:1 'sndhdmi'/'sndhdmi' Mixer name : '' Components : '' Controls : 1 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'hdmi audio format Function',0 Capabilities: enum Items: 'null' 'pcm' 'AC3' 'MPEG1' 'MP3' 'MPEG2' 'AAC' 'DTS' 'ATRAC' 'ONE_BIT_AUDIO' 'DOLBY_DIGITAL_PLUS' 'DTS_HD' 'MAT' 'WMAPRO' Item0: 'pcm' Channel: Unavailable CurrentDesktop: XFCE Date: Thu Aug 17 05:37:00 2017 Extensions: extensions.sqlite corrupt or missing ForcedLayersAccel: False IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) IpRoute: default via 192.168.10.1 dev eth0 default via 192.168.10.1 dev wlan0 proto static metric 600 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.10.0/24 dev eth0 proto kernel scope link src 192.168.10.107 192.168.10.0/24 dev wlan0 proto kernel scope link src 192.168.10.108 metric 600 Locales: extensions.sqlite corrupt or missing PciMultimedia: PciNetwork: Profiles: Profile0 (Default) - LastVersion=55.0.1/20170814194718 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/1711337/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
