Bug#700015: libx11-6: crashes on systems using Mali graphics
if you get me link to you libMali.so i can make bsdiff 2013/3/4 Michal Suchanek : > On 4 March 2013 14:24, Сергей И. Королев wrote: >> I think we can have libMali different version or target. My target >> Samsung Exynos and version R3P2. > > Yes, I am running r3p0 which is the version available for A10 at this > time. Still r3p2 diff is useful at least for users of that version. > > Thanks > > Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CALeNWNWTc9NuBQxDz3t7HdT8=4_dkfuqnj5q_soqu7uhscc...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
On 4 March 2013 14:24, Сергей И. Королев wrote: > I think we can have libMali different version or target. My target > Samsung Exynos and version R3P2. Yes, I am running r3p0 which is the version available for A10 at this time. Still r3p2 diff is useful at least for users of that version. Thanks Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/caomqcttyvz2ubtwhsqwg_z4br9qkalexq6dvk0pppc1zkw5...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
I think we can have libMali different version or target. My target Samsung Exynos and version R3P2. 2013/3/4 Michal Suchanek : > Hello, > > On 4 March 2013 13:46, Сергей И. Королев wrote: >> good news! i make quick and dirty hacks and this work system wide. > > That's cool but not exactly easily reproducible. > > Could you prehaps attach a bsdiff? > > Thanks > > Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CALeNWNXFi85g_mi_VYRZqxo+7PWgtu+mw=h7ofajcxnx95d...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
Hello, On 4 March 2013 13:46, Сергей И. Королев wrote: > good news! i make quick and dirty hacks and this work system wide. That's cool but not exactly easily reproducible. Could you prehaps attach a bsdiff? Thanks Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/caomqctredmtz8q3a2jaufpm0tsbafbaxsrhfb72x3dkhxxs...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
good news! i make quick and dirty hacks and this work system wide. details: my libMali.so have one nop instruction in function _init and two unused bytes in section .init; i disassemble libMali.so to find addresses of XInitThreads thunk and function called from _init; i increase section .init lenght to +2; i make simple dummy asm code: .thumb /* fake _init */ .org 0x02476c nop blx XInitThread bl sub_x nop /* fake XInitThreads thunk */ .org 0x024d14 XInitThread: nop /* fake subfunction for _init */ .org 0x0268e0 sub_x: nop i compile this code and make objdump -d of result and have: a.out: file format elf32-littlearm Disassembly of section .text: : ... 2476c: 46c0nop ; (mov r8, r8) 2476e: f000 ead2 blx 24d14 24772: f002 f8b5 bl 268e0 24776: 46c0nop ; (mov r8, r8) ... 00024d14 : 24d14: 46c0nop ; (mov r8, r8) ... 000268e0 : 268e0: 46c0nop ; (mov r8, r8) i replace call to subfunction and nop in _init to generated code; and in result i have needed - XInitThreads call after libMali.so load; 2013/3/4 Michal Suchanek : > On 4 March 2013 09:17, Сергей И. Королев wrote: >> in my instalation gnome-shell, empathy, evolution, emerillon and some >> other application affected to this bug. i think about system way >> workaround. how about patch libMali.so to call XInitThreads in init >> after library loaded? >> > > That's presumably possible but you will have to binary-patch the > library. There is no source. > > Also it's good idea to try the workaround with gdb to make sure you > really have the same problem. > > Thanks > > Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CALeNWNUrS3dQifjj1Hu2oVAw7ntw_Rj-4wBP=nx1n4tvzj_...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
I have idea use objcopy to rename original _init symbol, make new init function with call XInitThreads and original init and change entry point of library. How to do it I'll write about the results. 2013/3/4 Michal Suchanek : > On 4 March 2013 09:17, Сергей И. Королев wrote: >> in my instalation gnome-shell, empathy, evolution, emerillon and some >> other application affected to this bug. i think about system way >> workaround. how about patch libMali.so to call XInitThreads in init >> after library loaded? >> > > That's presumably possible but you will have to binary-patch the > library. There is no source. > > Also it's good idea to try the workaround with gdb to make sure you > really have the same problem. > > Thanks > > Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/calenwnvboqlf+puyk6f-w8sqnrtcxiunhwypzc7p9-+tnu+...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
On 4 March 2013 09:17, Сергей И. Королев wrote: > in my instalation gnome-shell, empathy, evolution, emerillon and some > other application affected to this bug. i think about system way > workaround. how about patch libMali.so to call XInitThreads in init > after library loaded? > That's presumably possible but you will have to binary-patch the library. There is no source. Also it's good idea to try the workaround with gdb to make sure you really have the same problem. Thanks Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAOMqctQwQQzGjxNfYWQoPN=stpyhhhca0pzqmn0r7xodgo8...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
in my instalation gnome-shell, empathy, evolution, emerillon and some other application affected to this bug. i think about system way workaround. how about patch libMali.so to call XInitThreads in init after library loaded? 2013/3/4 Michal Suchanek : > Hello > > I moved gnome-shell to /usr/local/bin and use this script instead: > > #!/bin/sh > gdb -ex 'break main' -ex 'r' -ex 'call XInitThreads()' -ex 'c' -ex > 'bt full' -ex 'quit' --args /usr/local/bin/gnome-shell.distrib "$@" > > > HTH > > Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CALeNWNVMUdLYDL7-B0Ej=dlnjbd1mcy6jvw5mkfk5darnv-...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
Hello I moved gnome-shell to /usr/local/bin and use this script instead: #!/bin/sh gdb -ex 'break main' -ex 'r' -ex 'call XInitThreads()' -ex 'c' -ex 'bt full' -ex 'quit' --args /usr/local/bin/gnome-shell.distrib "$@" HTH Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/caomqctqyhw+bn73ds-e_dg8u5y7md75h934dqvp4_-mhz+m...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
четверг, 7 февраля 2013 г., 16:40:02 UTC+4 пользователь Michal Suchanek написал: > Package: libx11-6 > > Version: 2:1.5.0-1 > > Severity: important > > > > Hello, > > > > the Mali gles library uses threads internally. > > > > The interface to the user program should be single-threaded, however. > > > > Programs linked to libx11 and libgles seem to crash due to locking some > > non-existent mutex. Hello. I have same trouble. Any ideas how to fix it or workaround? -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/0172bed6-edb8-478a-917e-56e5e35b0...@googlegroups.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
On 8 February 2013 11:20, Julien Cristau wrote: > On Fri, Feb 8, 2013 at 11:17:11 +0100, Michal Suchanek wrote: >> >> The GLES library is not in position to call XInitThreads because it's >> passed a X11 window id which was obtained by the application by a Xlib >> call already. >> >> gnome-shell is not interested in threading so does not call XInitThreads. >> > Sounds like you're screwed then. > > Cheers, > Julien Actually, the GLES library tries to initialize the X threading after the fact which leads to the uninitialized mutex. Since the mutex allocation does nothing when threading is not initialized there are no mutexes in objects created before. This is probably a bug in the library. Breakpoint 2, XInitThreads () at ../../src/locking.c:573 573 ../../src/locking.c: No such file or directory. (gdb) bt full #0 XInitThreads () at ../../src/locking.c:573 No locals. #1 0xb6455f5e in __egl_platform_initialize () from /usr/lib/arm-linux-gnueabihf/libEGL.so.1 No symbol table info available. #2 0xb645143a in __egl_main_open_mali () from /usr/lib/arm-linux-gnueabihf/libEGL.so.1 No symbol table info available. #3 0xb6450440 in _egl_initialize () from /usr/lib/arm-linux-gnueabihf/libEGL.so.1 No symbol table info available. #4 0xb6450be8 in eglInitialize () from /usr/lib/arm-linux-gnueabihf/libEGL.so.1 No symbol table info available. #5 0xb64f6a9e in ?? () from /usr/lib/arm-linux-gnueabihf/libcogl.so.9 No symbol table info available. #6 0xb64f6a9e in ?? () from /usr/lib/arm-linux-gnueabihf/libcogl.so.9 No symbol table info available. Backtrace stopped: previous frame identical to this frame (corrupt stack?) So yes, you are screwed. Given the X and GLES interfaces it's not possible for threading libraries to work unless applications go out of their way to be compatible and call XInitThreads on their own. Thanks Michal -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/caomqctspojniksrcdkwst6dmxd_pobhesw3usr+kz8tvezw...@mail.gmail.com
Bug#700015: libx11-6: crashes on systems using Mali graphics
On Fri, Feb 8, 2013 at 11:17:11 +0100, Michal Suchanek wrote: > On 7 February 2013 20:01, Julien Cristau wrote: > > On Thu, Feb 7, 2013 at 14:37:08 +, Michal Suchanek wrote: > > > >> Package: libx11-6 > >> Version: 2:1.5.0-1 > >> Followup-For: Bug #700015 > >> > >> Hello, > >> > >> it seems this problem is fixed by calling XInitThreads(). > >> > > Not a bug then. You don't get to use xlib in threaded programs without > > calling that. > > Except I am not sure who should call that. It's supposed to be the > first Xlib funcion called (as the gdb script does). > > Replacing gnome-shell with the gdb script allows running gnome as normal. > > Presumably gnome-shell runs on platforms with single-threaded GLES > implementation. > > The GLES library is not in position to call XInitThreads because it's > passed a X11 window id which was obtained by the application by a Xlib > call already. > > gnome-shell is not interested in threading so does not call XInitThreads. > Sounds like you're screwed then. Cheers, Julien -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20130208102044.ga23...@coloquinte.cristau.org
Bug#700015: libx11-6: crashes on systems using Mali graphics
Package: libx11-6 Version: 2:1.5.0-1 Followup-For: Bug #700015 Hello, it seems this problem is fixed by calling XInitThreads(). This is probably very platfrom specific problem, however. Drivers for this platform not available in Debian. Starting program: /usr/bin/gnome-shell [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/arm-linux-gnueabihf/libthread_db.so.1". Breakpoint 1, 0x9704 in main () (gdb) XInitThreads() Undefined command: "XInitThreads". Try "help". (gdb) call XInitThreads() $1 = 1 (gdb) c Continuing. -- System Information: Debian Release: 7.0 APT prefers unstable APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental') Architecture: armhf (armv7l) Kernel: Linux 3.4.24+ (PREEMPT) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/dash Versions of packages libx11-6 depends on: ii libc6 2.13-37 ii libx11-data2:1.5.0-1 ii libxcb11.8.1-2 ii multiarch-support 2.13-37 libx11-6 recommends no packages. libx11-6 suggests no packages. -- no debconf information -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20130207143708.11755.15816.report...@a10.burning-in.hell
