[Bug 1946621] Re: Crash in libegl-mesa0 (eglReleaseThread)
*** This bug is a duplicate of bug 1956915 *** https://bugs.launchpad.net/bugs/1956915 Verified internally with Ubuntu 20.04.4 + libegl-mesa0 version "21.2.6-0ubuntu0.1~20.04.2" and confirmed the crash issue is resolved. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946621 Title: Crash in libegl-mesa0 (eglReleaseThread) To manage notifications about this bug go to: https://bugs.launchpad.net/mesa/+bug/1946621/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1946621] Re: Crash in libegl-mesa0 (eglReleaseThread)
PR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13302 is merged on Mesa master branch: https://gitlab.freedesktop.org/maniraj87/mesa/-/commit/796c9ab3fd6b897ae3b3c069568182178c7661d4 Please include this change in Mesa upgrades in "Focal" series. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946621 Title: Crash in libegl-mesa0 (eglReleaseThread) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1946621/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1940545] Re: Update Mesa to mesa-21.1.7 on Ubuntu 20.04
Will that be updated only on impish (21.10) ? Actually we need the update on focal (20.04). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940545 Title: Update Mesa to mesa-21.1.7 on Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1940545/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1946621] Re: Crash in libegl-mesa0 (eglReleaseThread)
** Bug watch added: gitlab.freedesktop.org/mesa/mesa/-/issues #5466 https://gitlab.freedesktop.org/mesa/mesa/-/issues/5466 ** Also affects: mesa via https://gitlab.freedesktop.org/mesa/mesa/-/issues/5466 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946621 Title: Crash in libegl-mesa0 (eglReleaseThread) To manage notifications about this bug go to: https://bugs.launchpad.net/mesa/+bug/1946621/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1776499] Re: Crash in libegl-mesa0 due to out of bound array access
Hi Timo, A similar crash is observed in mesa-egl and it is resolved in Mesa master branch. Please refer the bug: https://bugs.launchpad.net/mesa/+bug/1946621 Can you help backporting the fix to "Focal" series. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1776499 Title: Crash in libegl-mesa0 due to out of bound array access To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1776499/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1940545] Re: Update Mesa to mesa-21.1.7 on Ubuntu 20.04
*** This bug is a duplicate of bug 1956915 *** https://bugs.launchpad.net/bugs/1956915 Hi Timo, From https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1956915, I understood that Mesa 21.2.6 is backported to ubuntu0.1~20.04.1 and that is currently under 'focal-proposed', when we can expect that to be part of 'focal-updates' ? I tried upgrading it with "sudo add-apt-repository ppa:savoury1/display && sudo apt upgrade" for now as mentioned in https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1956915. But the mesa package is not upgraded in my system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940545 Title: Update Mesa to mesa-21.1.7 on Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1940545/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1956915] Re: New bugfix release 21.2.6
Hi Timo, When we can expect that to be part of 'focal-updates' ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1956915 Title: New bugfix release 21.2.6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1956915/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1940545] [NEW] Update Mesa to mesa-21.1.7 on Ubuntu 20.04
Public bug reported: With the recent MR https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902 to Mesa, we (NVIDIA) have added ability to GBM to dynamically load the backends. So we request to upgrade mesa libs to its latest version (mesa-21.1.7) on Ubuntu 20.04 to use the added feature for our development. ** Affects: mesa (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940545 Title: Update Mesa to mesa-21.1.7 on Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1940545/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1940545] Re: Update Mesa to mesa-21.1.7 on Ubuntu 20.04
** Description changed: With the recent MR https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9902 to Mesa, - we have added ability to GBM to dynamically load the backends. So we - request to upgrade mesa libs to its latest version (mesa-21.1.7) on - Ubuntu 20.04 to use the added feature for our development. + we (NVIDIA) have added ability to GBM to dynamically load the backends. + So we request to upgrade mesa libs to its latest version (mesa-21.1.7) + on Ubuntu 20.04 to use the added feature for our development. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940545 Title: Update Mesa to mesa-21.1.7 on Ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1940545/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1946621] [NEW] Crash in libegl-mesa0 (eglReleaseThread)
Public bug reported: Crash in libegl-mesa0 (in eglReleaseThread API), please find the backtrace: #0 0xf7c86ac4 in __GI___pthread_mutex_lock (mutex=mutex@entry=0x8) at pthread_mutex_lock.c:67 #1 0xf4a7d110 in mtx_lock (mtx=0x8) at ../include/c11/threads_posix.h:223 #2 eglReleaseThread () at ../src/egl/main/eglapi.c:1713 #3 0xf6c115b8 in eglReleaseThread () at /lib/aarch64-linux-gnu/libEGL.so.1 #4 0xf7fdac00 in () at /lib/ld-linux-aarch64.so.1 #5 0xf7b4284c in __run_exit_handlers (status=0, listp=0xf7c76680 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true) at exit.c:108 #6 0xf7b429dc in __GI_exit (status=) at exit.c:139 #7 0xf7b2d094 in __libc_start_main (main= 0x3530 , argc=13, argv=0xf488, init=, fini=, rtld_fini=, stack_end=) at ../csu/libc-start.c:342 #8 0x4014 in _start () It crashes at: https://github.com/mesa3d/mesa/blob/mesa-21.0.3/src/egl/main/eglapi.c#L1713. 'disp' pointer is being NULL in this case. Actually nvidia's EGL backend is being loaded by glvnd in this case. But the eglReleaseThread() implementation of glvnd calls the eglReleaseThread() API of all the vendors, that's how it end-up calling the eglReleaseThread() API of Mesa backend. Refer: https://github.com/NVIDIA/libglvnd/blob/master/src/EGL/libegl.c#L806 lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description:Ubuntu 20.04.3 LTS Release:20.04 Codename: focal apt-cache policy libegl-mesa0 libegl-mesa0: Installed: 21.0.3-0ubuntu0.3~20.04.2 Candidate: 21.0.3-0ubuntu0.3~20.04.2 Version table: *** 21.0.3-0ubuntu0.3~20.04.2 500 500 http://ports.ubuntu.com/ubuntu-ports focal-updates/main arm64 Packages 100 /var/lib/dpkg/status 20.0.4-2ubuntu1 500 500 http://ports.ubuntu.com/ubuntu-ports focal/main arm64 Packages ** Affects: mesa (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946621 Title: Crash in libegl-mesa0 (eglReleaseThread) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1946621/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1946621] Re: Crash in libegl-mesa0 (eglReleaseThread)
The crash happens only when calling eglReleaseThread() from destructor of the process. Please find the attached simple app which can be used to repro the issue. With valgrind, I see there is some invalid memory access during the eglReleaseThread() call. Find the logs below: ==5059== Invalid read of size 8 ==5059==at 0x70480EC: eglReleaseThread (eglapi.c:1706) ==5059==by 0x48825B7: eglReleaseThread (in /usr/lib/aarch64-linux-gnu/libEGL.so.1.1.0) ==5059==by 0x1089FB: deinit (in /home/ubuntu/egl_sample/egl_sample) ==5059==by 0x400EBFF: _dl_fini (dl-fini.c:138) ==5059==by 0x48DC84B: __run_exit_handlers (exit.c:108) ==5059==by 0x48DC9DB: exit (exit.c:139) ==5059==by 0x48C7093: (below main) (libc-start.c:342) ==5059== Address 0x4c6f8c8 is 8 bytes inside a block of size 48 free'd ==5059==at 0x484AF20: free (in /usr/lib/aarch64-linux-gnu/valgrind/vgpreload_memcheck-arm64-linux.so) ==5059==by 0x7051FE3: _eglDestroyThreadInfo (eglcurrent.c:134) ==5059==by 0x7051FE3: _eglFiniTSD (eglcurrent.c:76) ==5059==by 0x70539CF: _eglAtExit (eglglobals.c:112) ==5059==by 0x48DC84B: __run_exit_handlers (exit.c:108) ==5059==by 0x48DC9DB: exit (exit.c:139) ==5059==by 0x48C7093: (below main) (libc-start.c:342) So eglReleaseThread() in this case, tries to access the _EGLThreadInfo memory already freed by _eglFiniTSD() ? But it is expected that a new instance of _EGLThreadInfo has to be created when eglReleaseThread() is called from the app in this case. ** Attachment added: "egl_sample.tar" https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1946621/+attachment/5531907/+files/egl_sample.tar -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946621 Title: Crash in libegl-mesa0 (eglReleaseThread) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1946621/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1946621] Re: Crash in libegl-mesa0 (eglReleaseThread)
Root caused the issue with Mesa-EGL, created a PR for the same: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13302 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946621 Title: Crash in libegl-mesa0 (eglReleaseThread) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1946621/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
