Thanks for your confirmation, Julien. I have asked Ubuntu to import the proper fix from upstream and they responded very promptly. See:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776887 They have posted a test kernel. I don't have a ubuntu install to test it on - only a VM which cannot suspend. It *might* be useful if someone wants to volunteer to try using the test kernel. You could test that your normal suspend still works, and test the command mentioned in the commit. I.e. $ sudo -i # dd if=/dev/sda of=/dev/null iflag=direct & \ while killall -SIGUSR1 dd; do sleep 0.1; done & \ echo mem > /sys/power/state ; \ sleep 5; killall dd # stop after 5 seconds On a "bad" kernel, any time you run this command it should show a message about an IO error. On a "good" kernel, the system will appear to suspend and resume, but there should be no IO error. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1760450 Title: [nvidia] Xorg crashed with signal 7 in _dl_fixup() from _dl_runtime_resolve_xsavec() called from nvidia_drv.so Status in xorg-server package in Ubuntu: Confirmed Status in Fedora: Unknown Bug description: after login session(suspend mode) ProblemType: Crash DistroRelease: Ubuntu 18.04 Package: xserver-xorg-core 2:1.19.6-1ubuntu3 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Uname: Linux 4.15.0-13-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu2 Architecture: amd64 Date: Sun Apr 1 20:34:29 2018 DistroCodename: bionic DistroVariant: ubuntu ExecutablePath: /usr/lib/xorg/Xorg InstallationDate: Installed on 2017-09-02 (211 days ago) InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412) ProcCmdline: /usr/lib/xorg/Xorg vt2 -displayfd 3 -auth /run/user/1000/gdm/Xauthority -background none -noreset -keeptty -verbose 3 ProcEnviron: Signal: 7 SourcePackage: xorg-server StacktraceTop: _dl_fixup (l=0x559c10faa5a0, reloc_arg=<optimized out>) at ../elf/dl-runtime.c:84 _dl_runtime_resolve_xsavec () at ../sysdeps/x86_64/dl-trampoline.h:125 ?? () from /usr/lib/xorg/modules/libwfb.so wfbComposite () from /usr/lib/xorg/modules/libwfb.so ?? () from /usr/lib/x86_64-linux-gnu/nvidia/xorg/nvidia_drv.so Title: Xorg crashed with signal 7 in _dl_fixup() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip libvirt lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1760450/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
