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Message-ID: <587A988A.50105@Wilcox-Tech.com>
Date: Sat, 14 Jan 2017 15:30:50 -0600
From: "A. Wilcox" <AWilcox@...cox-Tech.com>
To: musl@...ts.openwall.com
Subject: Re: Reviving planned ldso changes
On 04/01/17 13:36, Rich Felker wrote:
> Here's a v2 of the patch with the above issues fixed, and some
> comments that hopefully make it make sense. I still think there's more
> logic needed to allow concurrent ctors from unrelated dlopen in
> multiple threads, though.
>
> Rich
>
Applied to this to Adélie's musl package in a dev overlay and rebooted a
box with this patch applied.
What a fantastic little show!
iv_tls_user_ptr: called on unregistered iv_tls_user
/etc/init.d/syslog-ng: line 34: 2560 Aborted syslog-ng
-s -f "${SYSLOG_NG_CONFIGFILE}"
* ERROR: syslog-ng failed to start
When X tried to start up, further fireworks:
/usr/bin/startkde: line 384: 2638 Segmentation fault kwrapper5
/usr/bin/ksmserver $KDEWM $KSMSERVEROPTIONS
Starting program: /usr/bin/kwrapper5 /usr/bin/ksmserver
process 3281 is executing new program: /usr/bin/ksmserver
[New LWP 3287]
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff009938b in operator== (s1=..., s2=...) at tools/qstring.cpp:2686
2686 tools/qstring.cpp: No such file or directory.
(gdb) bt
#0 0x00007ffff009938b in operator== (s1=..., s2=...) at
tools/qstring.cpp:2686
#1 0x00007fffe2af2ae4 in operator!= (s2=..., s1=...) at
/usr/include/qt5/QtCore/qstring.h:632
#2 KHintsSettings::KHintsSettings (this=0x7fffe65829c0, kdeglobals=...)
at
/usr/src/kde-plasma/plasma-integration-5.7.5/work/plasma-integration-5.7.5/src/platformtheme/khintssettings.cpp:70
Where khintssettings.cpp contains:
68 const QString looknfeel = cg.readEntry("LookAndFeelPackage",
defaultLookAndFeelPackage);
70 if (looknfeel != defaultLookAndFeelPackage) {
And defaultLookAndFeelPackage is defined earlier in the source file as a
constant:
static const QString defaultLookAndFeelPackage =
QStringLiteral("org.kde.breeze.desktop");
We can see that defaultLookAndFeelPackage was not initialised correctly:
(gdb) printqs5static looknfeel
$9 = (Qt5 QString)0xffffdde0 length=22: "org.kde.breeze.desktop"
(gdb) printqs5static defaultLookAndFeelPackage
$10 = (Qt5 QString)0xe2d0be90 length=Cannot access memory at address 0x4
It therefore seems to me that this patch still needs some refining.
--arw
--
A. Wilcox (awilfox)
Open-source programmer (C, C++, Python)
https://code.foxkit.us/u/awilfox/
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