[Bug 66955] New: Running the game "FTL" causes the Xserver to crash inside the r600 dri code

[Bug 66955] New: Running the game "FTL" causes the Xserver to crash inside the r600 dri code

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1779 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=66955

          Priority: medium
            Bug ID: 66955
          Assignee: dri-devel@lists.freedesktop.org
           Summary: Running the game "FTL" causes the Xserver to crash
                    inside the r600 dri code
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: phil@kantaka.co.uk
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Radeon
           Product: DRI

System: Radeon HD 5770, AMD Phenom II. Debian Linux kernel 3.9.8, mesa 9.1.4
libdrm-radeon 2.4.45 xserver-xorg-video-radeon 6.14.4

Running the Linux version of the game FTL causes the Xserver to segfault.

The backtrace I get is:

Backtrace:
0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7fba2ad6dd06]
1: /usr/bin/Xorg (0x7fba2abef000+0x182859) [0x7fba2ad71859]
2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fba29f14000+0xf210)
[0x7fba29f23210]
3: /usr/lib/x86_64-linux-gnu/dri/r600_dri.so (0x7fba256e5000+0x10c7a7)
[0x7fba257f17a7]
4: /usr/lib/xorg/modules/extensions/libglx.so (0x7fba273a2000+0xddb1)
[0x7fba273afdb1]
5: /usr/lib/xorg/modules/extensions/libglx.so (0x7fba273a2000+0x3c223)
[0x7fba273de223]
6: /usr/bin/Xorg (0x7fba2abef000+0x52e61) [0x7fba2ac41e61]
7: /usr/bin/Xorg (0x7fba2abef000+0x41ec5) [0x7fba2ac30ec5]
8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x7fba28b9f995]
9: /usr/bin/Xorg (0x7fba2abef000+0x4219d) [0x7fba2ac3119d]

Segmentation fault at address 0x2d6a83b0

I'll see if I can get a better backtrace by installing the dbg packages.

No errors appear in the dmesg output - this appears to be a userspace crash.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 3110 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 66955] Running the game "FTL" causes the Xserver to crash inside the r600 dri code

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 2972 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=66955

--- Comment #1 from Phil Armstrong <phil@kantaka.co.uk> ---
Turns out the real problem is that FTL bundles a version of libstdc++ that the
DRI drivers won't link against.

It looks like the net result is that *no* DRI drivers (not even swrast) can be
loaded, and the Xserver dies when trying to invoke the first GLX call.

Here's the output of the program with LIBGL_DEBUG=verbose :

$ cat libgl_debug-output2.txt 
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/r600_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
libGL error: dlopen /usr/lib/x86_64-linux-gnu/dri/r600_dri.so failed
(/home/phil/games/FTL/data/amd64/lib/libstdc++.so.6: version `GLIBCXX_3.4.15'
not found (required by /usr/lib/x86_64-linux-gnu/libLLVM-3.2.so.1))
libGL: OpenDriver: trying ${ORIGIN}/dri/tls/r600_dri.so
libGL: OpenDriver: trying ${ORIGIN}/dri/r600_dri.so
libGL error: dlopen ${ORIGIN}/dri/r600_dri.so failed
(/home/phil/games/FTL/data/amd64/lib/libstdc++.so.6: version `GLIBCXX_3.4.15'
not found (required by /usr/lib/x86_64-linux-gnu/libLLVM-3.2.so.1))
libGL: OpenDriver: trying /usr/lib/dri/tls/r600_dri.so
libGL: OpenDriver: trying /usr/lib/dri/r600_dri.so
libGL error: dlopen /usr/lib/dri/r600_dri.so failed (/usr/lib/dri/r600_dri.so:
cannot open shared object file: No such file or directory)
libGL error: unable to load driver: r600_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: r600
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
libGL error: dlopen /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so failed
(/home/phil/games/FTL/data/amd64/lib/libstdc++.so.6: version `GLIBCXX_3.4.15'
not found (required by /usr/lib/x86_64-linux-gnu/libLLVM-3.2.so.1))
libGL: OpenDriver: trying ${ORIGIN}/dri/tls/swrast_dri.so
libGL: OpenDriver: trying ${ORIGIN}/dri/swrast_dri.so
libGL error: dlopen ${ORIGIN}/dri/swrast_dri.so failed
(/home/phil/games/FTL/data/amd64/lib/libstdc++.so.6: version `GLIBCXX_3.4.15'
not found (required by /usr/lib/x86_64-linux-gnu/libLLVM-3.2.so.1))
libGL: OpenDriver: trying /usr/lib/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/dri/swrast_dri.so
libGL error: dlopen /usr/lib/dri/swrast_dri.so failed
(/usr/lib/dri/swrast_dri.so: cannot open shared object file: No such file or
directory)
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":3"
      after 10305 requests (10305 known processed) with 0 events remaining.


If I remove the bundled libstdc++.so & use the system one then everything works
as expected.

Obviously this is still an Xorg crash bug though: the server ought not to crash
if a userspace program fails to load a glx driver!

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 3832 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 66955] Running the game "FTL" causes the Xserver to crash inside the r600 dri code

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 324 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=66955

--- Comment #2 from Phil Armstrong <phil@kantaka.co.uk> ---
Created attachment 82474
  --> https://bugs.freedesktop.org/attachment.cgi?id=82474&action=edit
gdb backtrace of all threads

Backtrace

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1317 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 66955] Running the game "FTL" causes the Xserver to crash inside the r600 dri code

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 311 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=66955

--- Comment #3 from Phil Armstrong <phil@kantaka.co.uk> ---
Created attachment 82475
  --> https://bugs.freedesktop.org/attachment.cgi?id=82475&action=edit
Backtrace with dri symbols

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1300 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 66955] Substituting an older libstdc++ when running a GL program causes a segfault in the Xserver.

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 594 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=66955

Phil Armstrong <phil@kantaka.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Running the game "FTL"      |Substituting an older
                   |causes the Xserver to crash |libstdc++ when running a GL
                   |inside the r600 dri code    |program causes a segfault
                   |                            |in the Xserver.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1246 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 66955] Substituting an older libstdc++ when running a GL program causes a segfault in the Xserver.

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 394 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=66955

--- Comment #4 from Phil Armstrong <phil@kantaka.co.uk> ---
Changed title to reflect underlying bug: I don't believe that the user should
be able to make the XServer process segfault by substituting the wrong
libstdc++ library when running an ordinary user process.

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1252 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Bug 66955] Substituting an older libstdc++ when running a GL program causes a segfault in the Xserver.

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 544 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=66955

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|dri-devel@lists.freedesktop |mesa-dev@lists.freedesktop.
                   |.org                        |org
            Product|DRI                         |Mesa
          Component|DRM/Radeon                  |Mesa core

-- 
You are receiving this mail because:
You are the assignee for the bug.

[-- Attachment #1.2: Type: text/html, Size: 1458 bytes --]

[-- Attachment #2: Type: text/plain, Size: 159 bytes --]

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel