Date: Mon, 30 Jan 2017 12:13:34 +0200 From: Andriy Gapon <avg@FreeBSD.org> To: freebsd-gecko@FreeBSD.org Cc: FreeBSD Hackers <freebsd-hackers@FreeBSD.org> Subject: Re: firefox crashes during pkg upgrade Message-ID: <2a4cad57-ddbf-6ef0-13e6-c2d24280fd24@FreeBSD.org> In-Reply-To: <567BF197.10908@FreeBSD.org> References: <567BF197.10908@FreeBSD.org>
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On 24/12/2015 15:22, Andriy Gapon wrote: > I've got a strange problem: sometime when I do pkg upgrade a firefox process > crashes with SIGBUS. And that happens rather often. I am still seeing this problem. Sometimes it's firefox, sometimes thunderbird, sometimes none, sometimes both. In all cases the crashes involve libgio. Here is the latest example. Thunderbird aborted after hitting an assertion: GLib-GIO:ERROR:glocalfilemonitor.c:344:g_file_monitor_source_handle_event: assertion failed: (!child || is_basename (child)) Redirecting call to abort() to mozalloc_abort (gdb) bt #0 0x0000000802093d7a in thr_kill () from /lib/libc.so.7 #1 0x0000000802093d4b in __raise (s=11) at /usr/src/lib/libc/gen/raise.c:52 #2 0x0000000805e5ab13 in nsProfileLock::FatalSignalHandler(int, __siginfo*, void*) () from /usr/local/lib/thunderbird/libxul.so #3 0x0000000801db863a in handle_signal (actp=0x7fffffffd248, sig=11, info=0x7fffffffd620, ucp=0x7fffffffd2b0) at /usr/src/lib/libthr/thread/thr_sig.c:244 #4 0x0000000801db7d1f in thr_sighandler (sig=11, info=0x7fffffffd620, _ucp=0x7fffffffd2b0) at /usr/src/lib/libthr/thread/thr_sig.c:189 #5 <signal handler called> #6 0x0000000001029a3d in mozalloc_abort(char const*) () #7 0x0000000001029a5d in abort () #8 0x000000080d22f08c in g_assertion_message () from /usr/local/lib/libglib-2.0.so.0 #9 0x000000080d22f0ee in g_assertion_message_expr () from /usr/local/lib/libglib-2.0.so.0 #10 0x000000080df5ea9b in g_file_monitor_source_handle_event () from /usr/local/lib/libgio-2.0.so.0 #11 0x000000080df65a3d in ?? () from /usr/local/lib/libgio-2.0.so.0 #12 0x000000080df63c3e in ?? () from /usr/local/lib/libgio-2.0.so.0 #13 0x000000080df644af in ?? () from /usr/local/lib/libgio-2.0.so.0 #14 0x000000080d20ab75 in g_main_context_dispatch () from /usr/local/lib/libglib-2.0.so.0 #15 0x000000080d20aea4 in ?? () from /usr/local/lib/libglib-2.0.so.0 #16 0x000000080d20af34 in g_main_context_iteration () from /usr/local/lib/libglib-2.0.so.0 #17 0x0000000805619ecc in nsAppShell::ProcessNextNativeEvent(bool) () from /usr/local/lib/thunderbird/libxul.so #18 0x00000008055eda96 in nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool) () from /usr/local/lib/thunderbird/libxul.so #19 0x00000008055edb5d in non-virtual thunk to nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool) () from /usr/local/lib/thunderbird/libxul.so #20 0x0000000803ce7ec0 in nsThread::ProcessNextEvent(bool, bool*) () from /usr/local/lib/thunderbird/libxul.so #21 0x0000000803d0d143 in NS_ProcessNextEvent(nsIThread*, bool) () from /usr/local/lib/thunderbird/libxul.so #22 0x0000000803f930de in mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) () from /usr/local/lib/thunderbird/libxul.so #23 0x0000000803f76618 in MessageLoop::Run() () from /usr/local/lib/thunderbird/libxul.so #24 0x00000008055ed7ab in nsBaseAppShell::Run() () from /usr/local/lib/thunderbird/libxul.so #25 0x0000000805e1f2ce in nsAppStartup::Run() () from /usr/local/lib/thunderbird/libxul.so #26 0x0000000805e64c22 in XREMain::XRE_mainRun() () from /usr/local/lib/thunderbird/libxul.so #27 0x0000000805e64f0d in XREMain::XRE_main(int, char**, nsXREAppData const*) () from /usr/local/lib/thunderbird/libxul.so #28 0x0000000805e652d1 in XRE_main () from /usr/local/lib/thunderbird/libxul.so #29 0x00000000010294c0 in main () (gdb) fr 10 #10 0x000000080df5ea9b in g_file_monitor_source_handle_event () from /usr/local/lib/libgio-2.0.so.0 (gdb) x/s $r15 0x82032ae40: 'Z' <repeats 11104 times>, "/usr/local/share/gnome" The above string is the value of 'child' parameter. It seems like it points to some invalid memory. Given that 'Z' is 0x5a it seems like freed memory. -- Andriy Gapon
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