[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
*** This bug is a duplicate of bug 1497593 *** https://bugs.launchpad.net/bugs/1497593 ** This bug has been marked a duplicate of bug 1497593 [nouveau] Programs crash with SIGABRT in nouveau_pushbuf_data: Assertion `kref' failed. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mesa: New Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Triaged Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Changed in: mesa Status: Unknown => New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mesa: New Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Triaged Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
This should probably be tracked in bug 1497593 now. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mesa: Unknown Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Triaged Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Bug watch added: gitlab.freedesktop.org/mesa/mesa/-/issues #1087 https://gitlab.freedesktop.org/mesa/mesa/-/issues/1087 ** Also affects: mesa via https://gitlab.freedesktop.org/mesa/mesa/-/issues/1087 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mesa: Unknown Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Triaged Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Changed in: nouveau Status: In Progress => Unknown -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Triaged Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
Launchpad has imported 42 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=92438. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2015-10-12T12:59:46+00:00 crystall wrote: Created attachment 118838 kernel log I've encountered an easily reproducible segfault using the Firefox OS emulator while I was hacking the said operating. The Firefox OS emulator [1] is a fork of the Android emulator which is in turn a fork of qemu. In both cases the graphics part is untouched so it might be possible to reproduce the same issue in qemu even though I didn't have the time to try it. Here's my full STR: 1) Build the Firefox OS emulator using the emulator-x86-kk target device ( git clone https://github.com/mozilla-b2g/B2G.git ; cd B2G ; ./config.sh emulator-x86-kk ; ./build.sh ) 2) Launch it from the tree using the run-emulator.sh script 3) Once Firefox OS has started quickly click on any application and keep clicking on buttons / input boxes / etc... The segfault will normally happen in a matter of seconds I've reproduced the bug both on Fedora 22 and Gentoo so it doesn't look like distro-specific, these are the versions number taken from my Gentoo installation: xf86-video-nouveau 1.0.11 libdrm 2.4.59 mesa 10.3.7 xorg-server 1.16.4 kernel 4.0.5 I've captured a stack trace of the segfault with gdb: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xc3dfeb40 (LWP 9387)] 0xf689a323 in pushbuf_kref () from /usr/lib32/libdrm_nouveau.so.2 (gdb) bt #0 0xf689a323 in pushbuf_kref () from /usr/lib32/libdrm_nouveau.so.2 #1 0xf689ab9f in pushbuf_validate () from /usr/lib32/libdrm_nouveau.so.2 #2 0xf6ce47e8 in nv50_state_validate () from /usr/lib32/dri/nouveau_dri.so #3 0xf6cf0a49 in nv50_draw_vbo () from /usr/lib32/dri/nouveau_dri.so #4 0xf6b3846d in cso_draw_vbo () from /usr/lib32/dri/nouveau_dri.so #5 0xf6a5f29e in st_draw_vbo () from /usr/lib32/dri/nouveau_dri.so #6 0xf6a30cd3 in vbo_draw_arrays () from /usr/lib32/dri/nouveau_dri.so #7 0xf6a30f37 in vbo_exec_DrawArrays () from /usr/lib32/dri/nouveau_dri.so #8 0xf72ca52b in glDrawArrays (mode=4, first=0, count=6) at sdk/emulator/opengl/host/libs/Translator/GLES_V2/GLESv2Imp.cpp:576 #9 0xf74b9965 in gl2_decoder_context_t::decode (this=0xc3dfdfd4, buf=0xc47ff008, len=5452, stream=0xc6400768) at out/host/linux-x86/obj/STATIC_LIBRARIES/libGLESv2_dec_intermediates/gl2_dec.cpp:565 #10 0xf74b662c in RenderThread::Main (this=0xc6400788) at sdk/emulator/opengl/host/libs/libOpenglRender/RenderThread.cpp:128 #11 0xf74cdc3d in osUtils::Thread::thread_main (p_arg=0xc6400788) at sdk/emulator/opengl/shared/OpenglOsUtils/osThreadUnix.cpp:83 #12 0xf7f9711f in start_thread () from /lib32/libpthread.so.0 #13 0xf7d5f79e in clone () from /lib32/libc.so.6 I'm attaching the kernel log and the X log. Those may be "polluted" by other stuff as my machine has been running for some time since I've hit the bug. I'll try to provide cleaner ones right after I hit the bug. If more detailed information is needed (e.g. a backtrace with finer-grained debug information, etc...) I can provide it given some time to gather it. [1] https://developer.mozilla.org/en- US/docs/Mozilla/Firefox_OS/Using_the_B2G_emulators Reply at: https://bugs.launchpad.net/ubuntu/+source/qtmir/+bug/1553328/comments/0 On 2015-10-12T13:00:11+00:00 crystall wrote: Created attachment 118839 X log Reply at: https://bugs.launchpad.net/ubuntu/+source/qtmir/+bug/1553328/comments/1 On 2015-10-12T17:35:19+00:00 Ilia Mirkin wrote: Does this still happen with recent mesa (and libdrm)? Reply at: https://bugs.launchpad.net/ubuntu/+source/qtmir/+bug/1553328/comments/2 On 2015-10-12T20:41:21+00:00 crystall wrote: I can test it, which version of mesa and libdrm do you suggest? The portage tree seems to have all recent versions. Reply at: https://bugs.launchpad.net/ubuntu/+source/qtmir/+bug/1553328/comments/3 On 2015-10-13T06:41:57+00:00 crystall wrote: I've started testing with different versions of mesa and libdrm. On my first try I could still repro with mesa 10.4.6 and libdrm 2.4.59. Reply at: https://bugs.launchpad.net/ubuntu/+source/qtmir/+bug/1553328/comments/4 On 2015-10-13T07:22:07+00:00 crystall wrote: Still repros on mesa 10.4.6 and libdrm 2.4.65. Reply at: https://bugs.launchpad.net/ubuntu/+source/qtmir/+bug/1553328/comments/5
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Changed in: mesa (Ubuntu) Status: Invalid => Triaged ** Changed in: mesa (Ubuntu) Importance: Critical => High ** Changed in: libdrm (Ubuntu) Importance: Critical => High -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Triaged Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
Actually, the snapshotting/screencasting thread could also trigger it. If that's still a thing...? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
I don't think the problem description is clear that both the Mir and Unity8 compositors are affected. (It can be read as applying to the stack including Unity8.) Thanks for clarifying. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
Well, yes. The problem description before that covers the fact that Mir's multi-threaded compositor manifests the problem (assuming you have multiple monitors). And comment #20 states that avoiding multiple threads (a single headed or cloned config) avoids the instability. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
Daniel, you are saying comment #20 states that Mir's thread-per-monitor rendering manifests the problem? (I don't have any nouveau based kit to test on.) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
Alan, that question was already answered in comment #20. Single threaded rendering works. ** Changed in: mir Status: Incomplete => Triaged ** Changed in: mir Importance: Undecided => High ** Changed in: mir (Ubuntu) Status: Incomplete => Triaged ** Changed in: mir (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
The nouveau isn't threadsafe and the Qt renderer uses threaded GL by default. We don't know if Mir's default renderer would also exhibit the same issue when running multimonitor. (The Mir renderer uses a thread per monitor, but this is a simpler usage pattern than Qt and may not manifest problems.) ** Changed in: mir Status: Triaged => Incomplete ** Changed in: mir Importance: High => Undecided ** Changed in: mir (Ubuntu) Status: Triaged => Incomplete ** Changed in: mir (Ubuntu) Importance: High => Undecided ** Changed in: canonical-devices-system-image Assignee: Stephen M. Webb (bregma) => (unassigned) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Incomplete Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Incomplete Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Also affects: qtubuntu (Ubuntu) Importance: Undecided Status: New ** Changed in: qtubuntu (Ubuntu) Status: New => In Progress ** Changed in: qtubuntu (Ubuntu) Assignee: (unassigned) => Gerry Boland (gerboland) ** Changed in: qtmir (Ubuntu) Assignee: (unassigned) => Gerry Boland (gerboland) ** Changed in: qtmir (Ubuntu) Status: Confirmed => In Progress ** Changed in: qtubuntu (Ubuntu) Importance: Undecided => High ** Changed in: qtmir (Ubuntu) Importance: Medium => High ** Changed in: mir (Ubuntu) Importance: Critical => High ** Changed in: mir (Ubuntu) Status: Invalid => Triaged ** Changed in: unity-system-compositor Importance: Medium => High ** Changed in: unity-system-compositor Status: Confirmed => Triaged ** Changed in: mir Importance: Medium => High ** Changed in: mir Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Triaged Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Triaged Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Triaged Status in qtmir package in Ubuntu: In Progress Status in qtubuntu package in Ubuntu: In Progress Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Branch linked: lp:~gerboland/qtmir/nouveau-workaround -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Confirmed Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Confirmed Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtmir package in Ubuntu: Confirmed Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
I've an ancient NVidia box at home, can try it out. I'm attaching patches for qtubuntu/qtmir to force Qt to use single threaded GL on nouveau. ** Branch linked: lp:~gerboland/qtubuntu/nouveau-workaround -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Confirmed Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Confirmed Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtmir package in Ubuntu: Confirmed Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
I made an attempt at a workaround for nouveau crashes today (and discovered more nouveau bugs). I can confirm with mir-demos that forcing the compositor into single- threaded mode makes it stable. The only problem is the unity-system- compositor option for doing this gets ignored (Unity8 overrides the display config to suit itself when it sees a second display). So you can't apply the workaround yourself. So yes, medium term we could work around some of the nouveau stability issues by hacking Mir/USC/Unity8 to only use single threaded rendering. But that requires code changes in multiple places. I suggest a short-term workaround that should do the trick is: 1. Unplug all but one monitor; and 2. Add to /etc/environment: QSG_RENDER_LOOP=basic Sadly I can't even test that much myself, because of bug 1677125. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Confirmed Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Confirmed Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtmir package in Ubuntu: Confirmed Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Changed in: canonical-devices-system-image Milestone: u8c-1 => u8c-2 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Confirmed Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Confirmed Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtmir package in Ubuntu: Confirmed Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Changed in: canonical-devices-system-image Status: Incomplete => Triaged -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Triaged Status in Mir: Confirmed Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Confirmed Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtmir package in Ubuntu: Confirmed Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
Even easier workaround for Mir/USC: Just default to clone mode instead of side-by-side, which is the problem in today's duplicate bug 1672793. Mir's legacy clone mode will at least ensure there is only one compositor thread, so nouveau should be stable then. ** Also affects: unity-system-compositor Importance: Undecided Status: New ** Changed in: unity-system-compositor Importance: Undecided => Medium ** Changed in: unity-system-compositor Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Incomplete Status in Mir: Confirmed Status in Nouveau Xorg driver: Unknown Status in Unity System Compositor: Confirmed Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtmir package in Ubuntu: Confirmed Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
Per comment #17 it might actually be easiest to build a workaround in Mir for now... Either disable secondary compositor threads, or build a SingleThreadedCompositor to replace MultiThreadedCompositor. In my spare time I'm working on an idea where post() could be made non- blocking. So that would eliminate the need for Mir's compositor to be threaded, and nouveau should then work (as well as it ever did for X). ** Changed in: mir Status: Invalid => Confirmed ** Changed in: mir Importance: Undecided => Medium ** Tags added: multimonitor ** Changed in: qtmir (Ubuntu) Importance: Critical => Medium ** Changed in: qtmir (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Incomplete Status in Mir: Confirmed Status in Nouveau Xorg driver: Unknown Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtmir package in Ubuntu: Confirmed Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1553328] Re: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings
** Summary changed: - Mir/Unity8 crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings + Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings ** Summary changed: - Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings + nouveau (nv50) crashes/freezes in pushbuf_kref() ** Summary changed: - nouveau (nv50) crashes/freezes in pushbuf_kref() + Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to libdrm in Ubuntu. https://bugs.launchpad.net/bugs/1553328 Title: Mir/Unity8/USC crashes/freezes on nouveau (nv50) in pushbuf_kref() especially with multiple monitors, webbrowser-app or system settings Status in Canonical System Image: Incomplete Status in Mir: Confirmed Status in Nouveau Xorg driver: Unknown Status in libdrm package in Ubuntu: Triaged Status in mesa package in Ubuntu: Invalid Status in mir package in Ubuntu: Invalid Status in qtmir package in Ubuntu: Confirmed Bug description: Unit8 froze up while I was trying to open system settings. ProblemType: Crash DistroRelease: Ubuntu 16.04 Package: unity8 8.11+16.04.20160216.1-0ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Fri Mar 4 19:12:54 2016 ExecutablePath: /usr/bin/unity8 InstallationDate: Installed on 2015-05-10 (299 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) ProcCmdline: unity8 SegvAnalysis: Segfault happened at: 0x7f58d568706c:mov0x8(%rsi),%edx PC (0x7f58d568706c) ok source "0x8(%rsi)" (0x0008) not located in a known VMA region (needed readable region)! destination "%edx" ok Stack memory exhausted (SP below stack segment) SegvReason: reading NULL VMA Signal: 11 SourcePackage: unity8 StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/nouveau_dri.so ?? () from /usr/lib/x86_64-linux-gnu/mesa-egl/libEGL.so.1 Title: unity8 crashed with SIGSEGV UpgradeStatus: Upgraded to xenial on 2015-11-07 (118 days ago) UserGroups: adm autopilot cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1553328/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
