Bug 993463

Created attachment 783106 [details]
File: backtrace

Created attachment 783107 [details]
File: cgroup

Created attachment 783108 [details]
File: core_backtrace

Created attachment 783109 [details]
File: dso_list

Created attachment 783110 [details]
File: environ

Created attachment 783111 [details]
File: limits

Created attachment 783112 [details]
File: maps

Created attachment 783113 [details]
File: open_fds

Created attachment 783114 [details]
File: proc_pid_status

Created attachment 783115 [details]
File: var_log_messages

This is an automated bug report processing. If you're able to reproduce the crash, please reopen it and remove the [abrt] string from the topics. And attach the reproduction steps.

Thanks!

Why was this closed? The backtrace clearly shows that "version" is a NULL pointer.

Program terminated with signal 11, Segmentation fault.
#0  do_winsys_init (ws=0xb7570520) at radeon_drm_winsys.c:212
212	    if (version->version_major != 2 ||

Thread 1 (Thread 0xb774c700 (LWP 2197)):
#0  do_winsys_init (ws=0xb7570520) at radeon_drm_winsys.c:212
        gem_info = {gart_size = 0, vram_size = 0, vram_visible = 0}
        retval = <optimized out>
        version = 0x0


Fred: Do you have any non-Fedora extensions installed?

#4  0xb4c50617 in driCreateNewScreen (scrn=0, extensions=0x4d838340 <loader_extensions>, driver_configs=0xbff10b2c, data=0xb7511940) at ../../../../src/mesa/drivers/dri/common/drisw_util.c:70

Hit this in rawhide today in firefox 23, abrt does not want to show problem info since it has already been reported (but not fixed)

{   "signal": 11
,   "executable": "/usr/lib64/firefox/firefox"
,   "stacktrace":
      [ {   "crash_thread": true
        ,   "frames":
              [ {   "address": 140335824555609
                ,   "build_id": "5682d68361dd1cac2a2455a3ffffe71ffdd08622"
                ,   "build_id_offset": 3837529
                ,   "function_name": "radeon_drm_winsys_create"
                ,   "file_name": "/usr/lib64/dri/r600_dri.so"
                ,   "fingerprint": "7d7793b7a755f1bdf0362ebccf982e8c10195e92"
                }
              , {   "address": 140335821220569
                ,   "build_id": "5682d68361dd1cac2a2455a3ffffe71ffdd08622"
                ,   "build_id_offset": 502489
                ,   "function_name": "create_screen"
                ,   "file_name": "/usr/lib64/dri/r600_dri.so"
                ,   "fingerprint": "3dd2da2de8fbd08723e52a8b6366d2348fd5a272"
                }
              , {   "address": 140335824536530
                ,   "build_id": "5682d68361dd1cac2a2455a3ffffe71ffdd08622"
                ,   "build_id_offset": 3818450
                ,   "function_name": "dri2_init_screen"
                ,   "file_name": "/usr/lib64/dri/r600_dri.so"
                ,   "fingerprint": "b19ef2e5e7fad0fa90e722294549e371abf51e9a"
                }
              , {   "address": 140335784444621
                ,   "build_id": "6bb64797f109ae4b42d0ff5cf5081a515034260d"
                ,   "build_id_offset": 295629
                ,   "function_name": "driCreateNewScreen"
                ,   "file_name": "/usr/lib64/dri/swrast_dri.so"
                ,   "fingerprint": "5c820b8a0ad086a06ccdcdccaf8f7ecac0510344"
                }
              , {   "address": 252543509771
                ,   "build_id": "78c76e851a851dbd1c6b296baabd2eda5326af4e"
                ,   "build_id_offset": 271627
                ,   "function_name": "driswCreateScreen"
                ,   "file_name": "/lib64/libGL.so.1"
                ,   "fingerprint": "c2d6f817abc4c3700c2f57a1cd760eb85b6cc5f2"
                }
              , {   "address": 252543355368
                ,   "build_id": "78c76e851a851dbd1c6b296baabd2eda5326af4e"
                ,   "build_id_offset": 117224
                ,   "function_name": "__glXInitialize"
                ,   "file_name": "/lib64/libGL.so.1"
                ,   "fingerprint": "a12b5acd4765d990182a62f2e4f4acc07749153c"
                }
              , {   "address": 252543340635
                ,   "build_id": "78c76e851a851dbd1c6b296baabd2eda5326af4e"
                ,   "build_id_offset": 102491
                ,   "function_name": "GetGLXPrivScreenConfig.part.2"
                ,   "file_name": "/lib64/libGL.so.1"
                ,   "fingerprint": "291b69e35ea35d1a13dff6aa79d59fd673abedb8"
                }
              , {   "address": 252543342787
                ,   "build_id": "78c76e851a851dbd1c6b296baabd2eda5326af4e"
                ,   "build_id_offset": 104643
                ,   "function_name": "glXChooseVisual"
                ,   "file_name": "/lib64/libGL.so.1"
                ,   "fingerprint": "1cdb944e94ccbb8f4539b82d3e6e77825476c21f"
                }
              , {   "address": 272362618664
                ,   "build_id": "b0c6a2a22ef15f958193f7afa1a4bddb73d372d2"
                ,   "build_id_offset": 7585576
                ,   "function_name": "_ZL7glxtestv"
                ,   "file_name": "/usr/lib64/firefox/xulrunner/libxul.so"
                ,   "fingerprint": "7cc08eeac8494332dfb33f421cb047c2dc73059b"
                }
              , {   "address": 272362619294
                ,   "build_id": "b0c6a2a22ef15f958193f7afa1a4bddb73d372d2"
                ,   "build_id_offset": 7586206
                ,   "function_name": "_Z20fire_glxtest_processv"
                ,   "file_name": "/usr/lib64/firefox/xulrunner/libxul.so"
                ,   "fingerprint": "2c1a61d1fcb3ad79e3fdfcbd65e4bcf3ea1528a6"
                }
              , {   "address": 272362583486
                ,   "build_id": "b0c6a2a22ef15f958193f7afa1a4bddb73d372d2"
                ,   "build_id_offset": 7550398
                ,   "function_name": "_ZN7XREMain12XRE_mainInitEPb"
                ,   "file_name": "/usr/lib64/firefox/xulrunner/libxul.so"
                ,   "fingerprint": "daeb42e0dc2f7de418ccc89aa95bf6d8aa38ae6e"
                }
              , {   "address": 272362597570
                ,   "build_id": "b0c6a2a22ef15f958193f7afa1a4bddb73d372d2"
                ,   "build_id_offset": 7564482
                ,   "function_name": "_ZN7XREMain8XRE_mainEiPPcPK12nsXREAppData"
                ,   "file_name": "/usr/lib64/firefox/xulrunner/libxul.so"
                ,   "fingerprint": "9c52dacb5895a30b5b487c2c3e9ba817fe56e451"
                }
              , {   "address": 272362598291
                ,   "build_id": "b0c6a2a22ef15f958193f7afa1a4bddb73d372d2"
                ,   "build_id_offset": 7565203
                ,   "function_name": "XRE_main"
                ,   "file_name": "/usr/lib64/firefox/xulrunner/libxul.so"
                ,   "fingerprint": "3ab02b229609de5ccb7f6977d19ca2320923d967"
                }
              , {   "address": 4209601
                ,   "build_id": "fc89ec1220099b55e0732e394d1bfbf3e90fff57"
                ,   "build_id_offset": 15297
                ,   "function_name": "_ZL7do_mainiPPcP7nsIFile"
                ,   "file_name": "/usr/lib64/firefox/firefox"
                ,   "fingerprint": "27717367fb67a36803d3eda80f61863b612cdfae"
                }
              , {   "address": 4207567
                ,   "build_id": "fc89ec1220099b55e0732e394d1bfbf3e90fff57"
                ,   "build_id_offset": 13263
                ,   "function_name": "main"
                ,   "file_name": "/usr/lib64/firefox/firefox"
                ,   "fingerprint": "0924591e4a1a9bcdb19f72da4b94d6adee783c63"
                } ]
        } ]
}

My experience of this is quite odd.

My machine ("redeye") was in an odd state due to https://bugzilla.redhat.com/show_bug.cgi?id=1003221.  The X server wasn't functional.  I was ssh'ed in from another machine ("redsquare"), with X forwarded to that machine's server.

I ran gnome-abrt through ssh.  I clicked on a URL that it displayed to get to the buzilla entry.  That caused (I think) Firefox to run on redeye before handing off the work to a firefox running on redsquare.  I forget the mechanism of this handoff, but for sure firefox was running on redsquare, not just using its display.

This report is a crash of the firefox that ran on redeye, the one that successfully handed off the URL to the firefox on redsquare.

The X server remained hung on redsquare at this time: until a reboot a few minutes later.  After the reboot, ABRT came up on redeye's console, and here I am.

Interesting; my bug https://bugzilla.redhat.com/show_bug.cgi?id=1029144 seems to have stopped killing the X server, but does reliably generate this firefox seg on the URL given in that bug.

(gdb) bt full
#0  do_winsys_init (ws=0x7f3c0f805000) at radeon_drm_winsys.c:212
        gem_info = {gart_size = 0, vram_size = 0, vram_visible = 0}
        retval = <optimized out>
        version = <optimized out>
#1  radeon_drm_winsys_create (fd=-1) at radeon_drm_winsys.c:617
        ws = 0x7f3c0f805000
#2  0x00007f3c07d5ead9 in create_screen (fd=<optimized out>) at target.c:11
        radeon = <optimized out>
        screen = <optimized out>
#3  0x00007f3c08088302 in dri2_init_screen (sPriv=0x7f3c0f83c860) at dri2.c:877
        configs = <optimized out>
        screen = 0x7f3c0f821200
        pscreen = <optimized out>
        throttle_ret = 0x0
#4  0x00007f3c05a742cd in driCreateNewScreen (scrn=0, extensions=0x3cdca65620 <loader_extensions>, driver_configs=0x7fff8c30b630, data=0x7f3c0f87f8e0) at ../../../../src/mesa/drivers/dri/common/drisw_util.c:70
        emptyExtensionList = {0x0}
        psp = 0x7f3c0f83c860
#5  0x0000003cdc8424db in driswCreateScreen (screen=0, priv=<optimized out>) at drisw_glx.c:686
        psp = <optimized out>
        driver_configs = 0x7fff8c30b728
        extensions = <optimized out>
        psc = 0x7f3c0f87f8e0
        configs = 0x0
        visuals = 0x0
        i = <optimized out>
#6  0x0000003cdc81c9e8 in AllocAndFetchScreenConfigs (priv=0x7f3c0f850400, dpy=0x7f3c0f8c2000) at glxext.c:778
        psc = <optimized out>
        i = 0
        screens = 1
#7  __glXInitialize (dpy=dpy@entry=0x7f3c0f8c2000) at glxext.c:879
        i = <optimized out>
        dpyPriv = 0x7f3c0f850400
        d = <optimized out>
        glx_direct = <optimized out>
        glx_accel = <optimized out>
        dpy = 0x7f3c0f8c2000
        dpyPriv = <optimized out>
#8  0x0000003cdc81905b in GetGLXPrivScreenConfig (dpy=dpy@entry=0x7f3c0f8c2000, scrn=scrn@entry=0, ppriv=ppriv@entry=0x7fff8c30b720, ppsc=ppsc@entry=0x7fff8c30b728) at glxcmds.c:174
No locals.
#9  0x0000003cdc8198c3 in GetGLXPrivScreenConfig (ppsc=0x7fff8c30b728, ppriv=0x7fff8c30b720, scrn=0, dpy=0x7f3c0f8c2000) at glxcmds.c:170
No locals.
#10 glXChooseVisual (dpy=dpy@entry=0x7f3c0f8c2000, screen=0, attribList=attribList@entry=0x7fff8c30b8f8) at glxcmds.c:1251
        visualList = 0x0
        priv = 0x0
        psc = 0x410116 <arena_dalloc+89>
        test_config = {next = 0x7f3c0f8c2000, rgbMode = 175 '\257', floatMode = 50 '2', colorIndexMode = 36 '$', doubleBufferMode = 50, stereoMode = 2352003056, redBits = 32767, greenBits = 0, blueBits = 1, alphaBits = 0, redMask = 0, 
          greenMask = 748069632, blueMask = 2172585559, alphaMask = 3699488304, rgbBits = 60, indexBits = 260841472, accumRedBits = 32572, accumGreenBits = 260882432, accumBlueBits = 32572, accumAlphaBits = -595262581, depthBits = 60, 
          stencilBits = -1942964112, numAuxBuffers = 32767, level = -438105392, pixmapMode = 60, visualID = 0, visualType = 0, visualRating = -31411808, transparentPixel = 51, transparentRed = -595478992, transparentGreen = 60, 
          transparentBlue = -595490224, transparentAlpha = 60, transparentIndex = -595487376, sampleBuffers = 60, samples = 673245014, drawableType = 50, renderType = 5, xRenderable = 0, fbconfigID = 0, maxPbufferWidth = 0, 
          maxPbufferHeight = -1942964116, maxPbufferPixels = 32767, optimalPbufferWidth = 757095928, optimalPbufferHeight = 50, visualSelectGroup = 260841472, swapMethod = 32572, screen = -595487376, bindToTextureRgb = 60, 
          bindToTextureRgba = 260429824, bindToMipmapTexture = 32572, bindToTextureTargets = 673272261, yInverted = 50, sRGBCapable = 1}
        config = 0x0
        best_config = 0x0
#11 0x0000003ce3b84dbe in glxtest () at /usr/src/debug/xulrunner-25.0/mozilla-release/toolkit/xre/glxtest.cpp:159
        buf = "\b\273\060\214\377\177\000\000\340\272\060\214\377\177\000\000\001\000\000\000\000\000\000\000\b2\210\017<\177\000\000X#\204\017<\177\000\000\000 \204\017<\177\000\000ϝ (2", '\000' <repeats 11 times>, "\244\223 (2\000\000\000\005\000\000\000\000\000\000\000\244\223 (2\000\000\000\006\000\000\000\000\000\000\000\020\017 )2\000\000\000\001\000\000\000\000\000\000\000U\000\000\000\000\000\000\000P\265\250\020\000\000\000\000\353\232 (2\000\000\000\324'\240(2\000\000\000P\272\060\214\377\177\000\000(\v )2\000\000\000\070\027 )2\000\000\000`\273\060\214\377\177\000\000P\273\060\214\377\177\000\000\020\000\000\000\000\000\000\000\b2\210\017<\177\000\000\000\000\000\000\000\000\000\000"...
        window = <optimized out>
        glXBindTexImageEXT = <optimized out>
        vInfo = <optimized out>
        context = <optimized out>
        rendererString = <optimized out>

        dpy = 0x7f3c0f8c2000
---Type <return> to continue, or q <return> to quit---
        attribs = {4, 8, 1, 9, 1, 10, 1, 0}
        versionString = <optimized out>
        swa = {background_pixmap = 4198344, background_pixel = 140735545391696, border_pixmap = 140735545391680, border_pixel = 7, bit_gravity = 0, win_gravity = 0, backing_store = 0, backing_planes = 139895935349256, 
          backing_pixel = 215423783272, save_under = -77517174, event_mask = 6391464, do_not_propagate_mask = 223260717992, override_redirect = 0, colormap = 4294967404, cursor = 0}
        vendorString = <optimized out>
        libgl = 0x7f3c0f85d800
#12 0x0000003ce3b85034 in fire_glxtest_process () at /usr/src/debug/xulrunner-25.0/mozilla-release/toolkit/xre/glxtest.cpp:234
        pfd = {3, 4}
        pid = 0
#13 0x0000003ce3b7d516 in XREMain::XRE_mainInit (this=this@entry=0x7fff8c30bf70, aExitFlag=aExitFlag@entry=0x7fff8c30bf1f) at /usr/src/debug/xulrunner-25.0/mozilla-release/toolkit/xre/nsAppRunner.cpp:2836
        rv = <optimized out>
        override = 0x7f3c0f838a80 "\020X\340\345<"
        i = <optimized out>
        ar = <optimized out>
        home = <optimized out>
        gtkModules = <optimized out>
#14 0x0000003ce3b80c3d in XREMain::XRE_main (this=this@entry=0x7fff8c30bf70, argc=argc@entry=2, argv=argv@entry=0x7fff8c30d478, aAppData=aAppData@entry=0x7fff8c30c170)
    at /usr/src/debug/xulrunner-25.0/mozilla-release/toolkit/xre/nsAppRunner.cpp:3906
        aLocal = 0 '\000'
        sampler_raii3876 = {mHandle = 0x7f3c0f8b7000}
        rv = NS_OK
        exit = false
        appInitiatedRestart = <optimized out>
        result = <optimized out>
#15 0x0000003ce3b80f0e in XRE_main (argc=2, argv=0x7fff8c30d478, aAppData=0x7fff8c30c170, aFlags=<optimized out>) at /usr/src/debug/xulrunner-25.0/mozilla-release/toolkit/xre/nsAppRunner.cpp:4128
        main = {mNativeApp = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, mProfileSvc = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, mProfD = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, 
          mProfLD = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, mProfileLock = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, mRemoteService = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, 
          mScopedXPCom = 0x0, mAppData = 0x7f3c0f820b80, mDirProvider = {<nsIDirectoryServiceProvider2> = {<nsIDirectoryServiceProvider> = {<nsISupports> = {
                  _vptr.nsISupports = 0x3ce5bfd650 <vtable for nsXREDirProvider+16>}, <No data fields>}, <No data fields>}, <nsIProfileStartup> = {<nsISupports> = {
                _vptr.nsISupports = 0x3ce5bfd698 <vtable for nsXREDirProvider+88>}, <No data fields>}, mAppProvider = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, mGREDir = {<nsCOMPtr_base> = {
                mRawPtr = 0x0}, <No data fields>}, mXULAppDir = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, mProfileDir = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}, mProfileLocalDir = {<nsCOMPtr_base> = {
                mRawPtr = 0x0}, <No data fields>}, mProfileNotified = false, mAppBundleDirectories = {<nsCOMArray_base> = {
                mArray = {<nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator>> = {<nsTArray_base<nsTArrayInfallibleAllocator, nsTArray_CopyElements<nsISupports*> >> = {
                      mHdr = 0x3ce5f624c0 <nsTArrayHeader::sEmptyHdr>}, <nsTArray_TypedBase<nsISupports*, nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator> >> = {<nsTArray_SafeElementAtHelper<nsISupports*, nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}}, <No data fields>}, mExtensionDirectories = {<nsCOMArray_base> = {
                mArray = {<nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator>> = {<nsTArray_base<nsTArrayInfallibleAllocator, nsTArray_CopyElements<nsISupports*> >> = {
                      mHdr = 0x3ce5f624c0 <nsTArrayHeader::sEmptyHdr>}, <nsTArray_TypedBase<nsISupports*, nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator> >> = {<nsTArray_SafeElementAtHelper<nsISupports*, nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}}, <No data fields>}, mThemeDirectories = {<nsCOMArray_base> = {
                mArray = {<nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator>> = {<nsTArray_base<nsTArrayInfallibleAllocator, nsTArray_CopyElements<nsISupports*> >> = {
                      mHdr = 0x3ce5f624c0 <nsTArrayHeader::sEmptyHdr>}, <nsTArray_TypedBase<nsISupports*, nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator> >> = {<nsTArray_SafeElementAtHelper<nsISupports*, nsTArray_Impl<nsISupports*, nsTArrayInfallibleAllocator> >> = {<No data fields>}, <No data fields>}, <No data fields>}, <No data fields>}}, <No data fields>}}, mProfileName = {<nsFixedCString> = {<nsCString> = {<nsACString_internal> = {
                  mData = 0x7fff8c30c028 "", mLength = 0, mFlags = 65553}, <No data fields>}, mFixedCapacity = 63, mFixedBuf = 0x7fff8c30c028 ""}, 
            mStorage = "\000\300\060\214\377\177\000\000\250\300\060\214\377\177\000\000\257\300\060\214\377\177\000\000\257\300\060\214\377\177\000\000\000\243\226,W\006\177\201@\301\060\214\377\177\000\000\210\300\060\214\377\177\000\000\200\212\203\017<\177\000"}, mDesktopStartupID = {<nsFixedCString> = {<nsCString> = {<nsACString_internal> = {mData = 0x7fff8c30c088 "", mLength = 0, mFlags = 65553}, <No data fields>}, mFixedCapacity = 63, 
              mFixedBuf = 0x7fff8c30c088 ""}, 
            mStorage = "\000\300\060\214\377\177\000\000\a\000\000\000\021\000\001\000?\000\000\000<\000\000\000\250\300\060\214\377\177\000\000browser\000\300\200\203\017<\177\000\000\200\212\203\017<\177\000\000\300\211\203\017<\177\000"}, mStartOffline = false, mShuttingDown = false, mDisableRemote = false, mGdkDisplay = 0x0}
        result = <optimized out>
#16 0x0000000000403e61 in do_main (argc=argc@entry=2, argv=argv@entry=0x7fff8c30d478, xreDirectory=0x7f3c0f8380c0) at /usr/src/debug/firefox-25.0/mozilla-release/browser/app/nsBrowserApp.cpp:275
        appData = {<nsXREAppData> = {size = 120, directory = 0x7f3c0f838a80, vendor = 0x7f3c0f82d2d0 "Mozilla", name = 0x7f3c0f82d2d8 "Firefox", version = 0x7f3c0f82d2e0 "25.0", buildID = 0x7f3c0f83b630 "20131030203622", 
            ID = 0x7f3c0f8a62e0 "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}", copyright = 0x0, flags = 14, xreDirectory = 0x7f3c0f8380c0, minVersion = 0x7f3c0f82d2e8 "25.0", maxVersion = 0x7f3c0f82d2f0 "25.0", 
            crashReporterURL = 0x7f3c0f820900 "https://crash-reports.mozilla.com/submit?id={ec8030f7-c20a-464f-9b0e-13a3a9e97384}&version=25.0&buildid=20131030203622", profile = 0x0, UAName = 0x0}, <No data fields>}
        exeFile = {<nsCOMPtr_base> = {mRawPtr = 0x7f3c0f838900}, <No data fields>}
        greDir = {<nsCOMPtr_base> = {mRawPtr = 0x7f3c0f8389c0}, <No data fields>}
        appSubdir = {<nsCOMPtr_base> = {mRawPtr = 0x7f3c0f838a80}, <No data fields>}
        rv = <optimized out>
        appDataFile = <optimized out>
        metroOnDesktop = false
        appini = {<nsCOMPtr_base> = {mRawPtr = 0x0}, <No data fields>}
#17 0x00000000004035ff in main (argc=2, argv=0x7fff8c30d478) at /usr/src/debug/firefox-25.0/mozilla-release/browser/app/nsBrowserApp.cpp:635
        gotCounters = 1
        initialRUsage = {ru_utime = {tv_sec = 0, tv_usec = 3000}, ru_stime = {tv_sec = 0, tv_usec = 5000}, {ru_maxrss = 2052, __ru_maxrss_word = 2052}, {ru_ixrss = 0, __ru_ixrss_word = 0}, {ru_idrss = 0, __ru_idrss_word = 0}, {
            ru_isrss = 0, __ru_isrss_word = 0}, {ru_minflt = 1352, __ru_minflt_word = 1352}, {ru_majflt = 0, __ru_majflt_word = 0}, {ru_nswap = 0, __ru_nswap_word = 0}, {ru_inblock = 0, __ru_inblock_word = 0}, {ru_oublock = 8, 
---Type <return> to continue, or q <return> to quit---
            __ru_oublock_word = 8}, {ru_msgsnd = 0, __ru_msgsnd_word = 0}, {ru_msgrcv = 0, __ru_msgrcv_word = 0}, {ru_nsignals = 0, __ru_nsignals_word = 0}, {ru_nvcsw = 19, __ru_nvcsw_word = 19}, {ru_nivcsw = 3, __ru_nivcsw_word = 3}}
        xreDirectory = 0x7f3c0f8380c0
        rv = <optimized out>
        result = <optimized out>
(gdb)

The easy part of stopping this crash is a trivial check that's missing in:

Mesa's

src/gallium/winsys/radeon/drm/radeon_drm_winsys.c:~212

in static boolean do_winsys_init(struct radeon_drm_winsys *ws)

    version = drmGetVersion(ws->fd);

it doesn't guard the version to check if it got a result back; other users of drmGetVersion in various places check it; so adding a

if (!version) {
  return FALSE;
}

there seems to stop the seg; so I think that's a no-brainer addition.


However, the harder question is why it's returning NULL, and I think from the debug it's because fd=-1
Why fd is -1 I've not figured out.

I've filed the missing NULL check as:
https://bugs.freedesktop.org/show_bug.cgi?id=72732

The process that's segging is a thing called 'glxtest.cpp' in xulrunner.
It runs as a separate process that's intent is just to see if GL works (which I guess in this case it doesn't).
Not obvious to me yet when it's triggered, and the gotcha is it closes every fd - including stderr before it does anything interesting.

The backtrace looks like it's failing at:
   int attribs[] = {
      GLX_RGBA,
      GLX_RED_SIZE, 1,
      GLX_GREEN_SIZE, 1,
      GLX_BLUE_SIZE, 1,
      None };
  XVisualInfo *vInfo = glXChooseVisual(dpy, DefaultScreen(dpy), attribs);


Full path:
xulrunner-26.0/mozilla-release/toolkit/xre/glxtest.cpp

(Last week it was 25, still fails with 26 - although not had an X crash yet).

(As I've just put on the upstream bug)

OK, I believe the case that's causing it to go down this route is a perms screw up somewhere; I was running this test in a separate X session (just logging as a normal user on the console and running X :2 )

But with a bit of debug I'm seeing:

libGL: OpenDriver: trying /usr/lib64/dri/tls/r600_dri.so
libGL: OpenDriver: trying /usr/lib64/dri/r600_dri.so
libGL error: failed to open drm device: Permission denied
libGL error: failed to load driver: r600

[dg@major ~]$ ls -lZ /dev/dri/card0
crw-rw----+ root video system_u:object_r:dri_device_t:s0 /dev/dri/card0
[dg@major ~]$ id -Z
unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023

So I'm not quite sure what the perm screw up is, but that's separate - this will seg in glxgears or anything if the drm device won't open.

Dave

and as I've said on the upstream; I understand the perms - since I was starting X with :2  it was displaying on vt3 from starting on vt2, and when I changed to vt3 it dropped the acl off /dev/dri/card0 which is why we got the permission denied.

Still, still shows the missing NULL.

See my findings in bug https://bugzilla.redhat.com/show_bug.cgi?id=1008916 , with an *UGLY* workaround (do NOT do it if you don't know what it implies) that does not imply to rebuild the package. In my case, it fixes my broken multiseat install.

Goulou

This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle.
Changing version to '22'.

More information and reason for this action is here:
https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora22

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days