This looks like a continuation of bug 1497593. Nouveau not being thread safe.
The solution is to install a proprietary Nvidia driver instead. ** Summary changed: - /usr/bin/gnome-shell:11:pushbuf_dump:pushbuf_submit:pushbuf_flush:pushbuf_refn:nouveau_pushbuf_refn + gnome-shell crashed with SIGSEGV in pushbuf_dump() from pushbuf_submit() from pushbuf_flush() from pushbuf_refn() from nouveau_pushbuf_refn() ** Tags added: nouveau ** Summary changed: - gnome-shell crashed with SIGSEGV in pushbuf_dump() from pushbuf_submit() from pushbuf_flush() from pushbuf_refn() from nouveau_pushbuf_refn() + [nouveau] gnome-shell crashed with SIGSEGV in pushbuf_dump() from pushbuf_submit() from pushbuf_flush() from pushbuf_refn() from nouveau_pushbuf_refn() ** Package changed: gnome-shell (Ubuntu) => mesa (Ubuntu) ** Bug watch added: gitlab.freedesktop.org/mesa/mesa/-/issues #12319 https://gitlab.freedesktop.org/mesa/mesa/-/issues/12319 ** Also affects: mesa via https://gitlab.freedesktop.org/mesa/mesa/-/issues/12319 Importance: Unknown Status: Unknown ** Summary changed: - [nouveau] gnome-shell crashed with SIGSEGV in pushbuf_dump() from pushbuf_submit() from pushbuf_flush() from pushbuf_refn() from nouveau_pushbuf_refn() + [nouveau] Crash with SIGSEGV in pushbuf_dump() from pushbuf_submit() from pushbuf_flush() from pushbuf_refn() from nouveau_pushbuf_refn() ** Changed in: mesa (Ubuntu) Status: New => Confirmed -- 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/2099654 Title: [nouveau] Crash with SIGSEGV in pushbuf_dump() from pushbuf_submit() from pushbuf_flush() from pushbuf_refn() from nouveau_pushbuf_refn() Status in Mesa: Unknown Status in mesa package in Ubuntu: Confirmed Bug description: The Ubuntu Error Tracker has been receiving reports about a problem regarding gnome-shell. This problem was most recently seen with package version 48~beta-1ubuntu1, the problem page at https://errors.ubuntu.com/problem/54c4b329efcf6d8cd5edadaa3ce247c2af67c31b contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports. If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/. To manage notifications about this bug go to: https://bugs.launchpad.net/mesa/+bug/2099654/+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
