Bug#1016811: libwebkit2gtk-4.0-37: bullseye backport crashes a lot on arm64

[Dominique MARTINET]

Alberto Garcia wrote on Mon, Sep 26, 2022 at 12:00:04AM +0000:
> I just uploaded the packages built for bullseye, same URL, the patched
> ones are available already, the unpatched ones soon.

Thanks!

I've tried the patched variant, it seems to fail in the same place?

Here's the new trace with adjusted lines:
----
/usr/lib/aarch64-linux-gnu/webkit2gtk-4.0/WebKitNetworkProcess
#0  __GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x0000ffff817b3aa0 in __GI_abort () at abort.c:79
#2  0x0000ffff8427958c in WTFCrashWithInfo(int, char const*, char const*, int) () at WTF/Headers/wtf/Assertions.h:754
#3  0x0000ffff8525db20 in captureStackTrace () at ../Source/WTF/wtf/StackTrace.cpp:79
#4  0x0000ffff85232d18 in WTFReleaseLogStackTrace () at ../Source/WTF/wtf/Assertions.cpp:602
#5  0x0000ffff884e8934 in internalError () at ../Source/WebCore/platform/network/ResourceErrorBase.cpp:97
#6  0x0000ffff869e6c14 in preconnectTo () at ../Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp:733
#7  0x0000ffff8689baf8 in callMemberFunctionImpl<WebKit::NetworkConnectionToWebProcess, void (WebKit::NetworkConnectionToWebProcess::*)(std::optional<WTF::ObjectIdentifier<WebCore::ResourceLoader> >, WebKit::NetworkResourceLoadParameters&&), std::tuple<std::optional<WTF::ObjectIdentifier<WebCore::ResourceLoader> >, WebKit::NetworkResourceLoadParameters>, 0, 1> () at ../Source/WebKit/Platform/IPC/HandleMessage.h:131
#8  callMemberFunction<WebKit::NetworkConnectionToWebProcess, void (WebKit::NetworkConnectionToWebProcess::*)(std::optional<WTF::ObjectIdentifier<WebCore::ResourceLoader> >, WebKit::NetworkResourceLoadParameters&&), std::tuple<std::optional<WTF::ObjectIdentifier<WebCore::ResourceLoader> >, WebKit::NetworkResourceLoadParameters>, std::integer_sequence<unsigned long, 0, 1> > () at ../Source/WebKit/Platform/IPC/HandleMessage.h:137
#9  handleMessage<Messages::NetworkConnectionToWebProcess::PreconnectTo, WebKit::NetworkConnectionToWebProcess, void (WebKit::NetworkConnectionToWebProcess::*)(std::optional<WTF::ObjectIdentifier<WebCore::ResourceLoader> >, WebKit::NetworkResourceLoadParameters&&)> () at ../Source/WebKit/Platform/IPC/HandleMessage.h:259
#10 didReceiveNetworkConnectionToWebProcessMessage () at DerivedSources/WebKit/NetworkConnectionToWebProcessMessageReceiver.cpp:357
#11 0x0000ffff86b3ff1c in dispatchMessage () at ../Source/WebKit/Platform/IPC/Connection.cpp:1150
#12 0x0000ffff86b402b4 in dispatchOneIncomingMessage () at ../Source/WebKit/Platform/IPC/Connection.cpp:1219
#13 0x0000ffff8525c4b0 in operator() () at ../Source/WTF/wtf/Function.h:82
#14 performWork () at ../Source/WTF/wtf/RunLoop.cpp:133
#15 0x0000ffff852b5570 in operator() () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:80
#16 __invoke () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:79
#17 0x0000ffff852b48f4 in operator() () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:53
#18 __invoke () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:45
#19 0x0000ffff81d25ab4 in g_main_context_dispatch () from /usr/lib/aarch64-linux-gnu/libglib-2.0.so.0
#20 0x0000ffff81d25e5c in ?? () from /usr/lib/aarch64-linux-gnu/libglib-2.0.so.0
#21 0x0000ffff81d261b0 in g_main_loop_run () from /usr/lib/aarch64-linux-gnu/libglib-2.0.so.0
#22 0x0000ffff852b4ef8 in run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:108
#23 0x0000ffff86b11004 in run () at ../Source/WebKit/Shared/AuxiliaryProcessMain.h:71
#24 AuxiliaryProcessMain<WebKit::NetworkProcessMainSoup> () at ../Source/WebKit/Shared/AuxiliaryProcessMain.h:97
#25 0x0000ffff817b3e18 in __libc_start_main (main=0x400878 <__wrap_main>, argc=3, argv=0xffffcfa17918, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=<optimized out>) at ../csu/libc-start.c:308
#26 0x0000000000400874 in _start ()



/usr/lib/aarch64-linux-gnu/webkit2gtk-4.0/WebKitWebProcess
#0  __GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x0000ffffa0afdaa0 in __GI_abort () at abort.c:79
#2  0x0000ffffa35c358c in WTFCrashWithInfo(int, char const*, char const*, int) () at WTF/Headers/wtf/Assertions.h:754
#3  0x0000ffffa45a7b20 in captureStackTrace () at ../Source/WTF/wtf/StackTrace.cpp:79
#4  0x0000ffffa457cd18 in WTFReleaseLogStackTrace () at ../Source/WTF/wtf/Assertions.cpp:602
#5  0x0000ffffa7832934 in internalError () at ../Source/WebCore/platform/network/ResourceErrorBase.cpp:97
#6  0x0000ffffa61e6f6c in internallyFailedLoadTimerFired () at ../Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp:503
#7  0x0000ffffa45ff61c in operator() () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:177
#8  __invoke () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:169
#9  0x0000ffffa45fe8f4 in operator() () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:53
#10 __invoke () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:45
#11 0x0000ffffa106fab4 in g_main_context_dispatch () from /usr/lib/aarch64-linux-gnu/libglib-2.0.so.0
#12 0x0000ffffa106fe5c in ?? () from /usr/lib/aarch64-linux-gnu/libglib-2.0.so.0
#13 0x0000ffffa10701b0 in g_main_loop_run () from /usr/lib/aarch64-linux-gnu/libglib-2.0.so.0
#14 0x0000ffffa45feef8 in run () at ../Source/WTF/wtf/glib/RunLoopGLib.cpp:108
#15 0x0000ffffa62a1aac in run () at ../Source/WebKit/Shared/AuxiliaryProcessMain.h:71
#16 AuxiliaryProcessMain<WebKit::WebProcessMainGtk> () at ../Source/WebKit/Shared/AuxiliaryProcessMain.h:97
#17 0x0000ffffa0afde18 in __libc_start_main (main=0x400878 <__wrap_main>, argc=3, argv=0xffffc73c1cc8, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=<optimized out>) at ../csu/libc-start.c:308
#18 0x0000000000400874 in _start ()
----

Since the patched variant does not resolve the problem I'm not going to
bother with the unpatched -- please ask if you'd like me to try anyway.


Meanwhile I'm continuing my quest to build webkit, pdebuild failed on an
intermediate ldd command because of improper argument escaping, I'll
retry out of the debian build chroot this time so I can iterate
faster...


Thanks!
-- 
Dominique