Activity log for bug #1886115

Date Who What changed Old value New value Message
2020-07-03 00:20:16 guenthert bug added bug
2020-07-03 01:01:25 Alex Murray libseccomp (Ubuntu): assignee Alex Murray (alexmurray)
2020-07-03 02:18:34 Alex Murray bug task added systemd (Ubuntu)
2020-07-03 02:37:23 guenthert tags apport-collected bionic
2020-07-03 02:37:24 guenthert description After applying updates to Ubuntu 18.04 my desktop (apple mini with i5-2415M CPU) failed to complete the boot process. A few seconds into the boot, the last message displayed is "/var mounted". The system then appears to hang indefinitely. Luckily, the 'rescue' boot image allows the boot process to proceed sufficiently far to allow a root shell to be spawned. Unfortunately no log files were written during the unsuccessful attempts to boot. Spawning a 2nd root shell (# nohup getty tty5) on a 2nd virtual terminal (tty5) I was able to observe the message 'systemd freezing execution' after I closed the first root shell and resumed the boot process. Further a core file was created (belonging to /sbin/init) in the root fs --8<-- (gdb) bt #0 0x00007f16807ba187 in kill () at ../sysdeps/unix/syscall-template.S:78 #1 0x0000563b957223b7 in ?? () #2 <signal handler called> #3 __GI___libc_free (mem=0x4a60d140dfd9a5) at malloc.c:3103 #4 0x0000563b9577c22e in ?? () #5 0x0000563b957672d6 in ?? () #6 0x0000563b9576ba22 in ?? () #7 0x0000563b9574f51a in ?? () #8 0x00007f16803a509a in ?? () from /lib/systemd/libsystemd-shared-237.so #9 0x00007f16803a53ea in sd_event_dispatch () from /lib/systemd/libsystemd-shared-237.so #10 0x00007f16803a5579 in sd_event_run () from /lib/systemd/libsystemd-shared-237.so #11 0x0000563b9572a49d in ?? () #12 0x0000563b9571560c in ?? () #13 0x00007f168079cb97 in __libc_start_main (main=0x563b957139c0, argc=3, argv=0x7ffe78153758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe78153748) at ../csu/libc-start.c:310 #14 0x0000563b957164fa in ?? () (gdb) -->8-- and the kernel message buffer lists --8<-- traps: systemd[1] general protection fault ip:7f17ebf6e98d sp:7ffd774d6020 error:0 in libc-2.27.so[7f17ebed7000+1e7000] -->8-- . To me that looked a bit like Bug 669702 of Gentoo (https://bugs.gentoo.org/669702) and indeed one of the (few) updates applied just prior the reboot was the update of libseccomp. I was able to circumvent the problem by disabling (commenting out) the syscall filtering requested by systemd (on my system, only /etc/systemd/system/dbus-org.freedesktop.resolve1.service needed to be modified). After applying updates to Ubuntu 18.04 my desktop (apple mini with i5-2415M CPU) failed to complete the boot process. A few seconds into the boot, the last message displayed is "/var mounted". The system then appears to hang indefinitely. Luckily, the 'rescue' boot image allows the boot process to proceed sufficiently far to allow a root shell to be spawned. Unfortunately no log files were written during the unsuccessful attempts to boot. Spawning a 2nd root shell (# nohup getty tty5) on a 2nd virtual terminal (tty5) I was able to observe the message 'systemd freezing execution' after I closed the first root shell and resumed the boot process. Further a core file was created (belonging to /sbin/init) in the root fs --8<-- (gdb) bt #0 0x00007f16807ba187 in kill () at ../sysdeps/unix/syscall-template.S:78 #1 0x0000563b957223b7 in ?? () #2 <signal handler called> #3 __GI___libc_free (mem=0x4a60d140dfd9a5) at malloc.c:3103 #4 0x0000563b9577c22e in ?? () #5 0x0000563b957672d6 in ?? () #6 0x0000563b9576ba22 in ?? () #7 0x0000563b9574f51a in ?? () #8 0x00007f16803a509a in ?? () from /lib/systemd/libsystemd-shared-237.so #9 0x00007f16803a53ea in sd_event_dispatch () from /lib/systemd/libsystemd-shared-237.so #10 0x00007f16803a5579 in sd_event_run () from /lib/systemd/libsystemd-shared-237.so #11 0x0000563b9572a49d in ?? () #12 0x0000563b9571560c in ?? () #13 0x00007f168079cb97 in __libc_start_main (main=0x563b957139c0, argc=3, argv=0x7ffe78153758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe78153748) at ../csu/libc-start.c:310 #14 0x0000563b957164fa in ?? () (gdb) -->8-- and the kernel message buffer lists --8<-- traps: systemd[1] general protection fault ip:7f17ebf6e98d sp:7ffd774d6020 error:0 in libc-2.27.so[7f17ebed7000+1e7000] -->8-- . To me that looked a bit like Bug 669702 of Gentoo (https://bugs.gentoo.org/669702) and indeed one of the (few) updates applied just prior the reboot was the update of libseccomp. I was able to circumvent the problem by disabling (commenting out) the syscall filtering requested by systemd (on my system, only /etc/systemd/system/dbus-org.freedesktop.resolve1.service needed to be modified). --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CurrentDesktop: MATE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-03-30 (460 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Apple Inc. Macmini5,1 NonfreeKernelModules: wl Package: systemd 237-3ubuntu10.41 [modified: lib/systemd/system/systemd-resolved.service] PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-62-generic root=UUID=891c2e06-2b40-4e79-a57f-6e550be932bb ro recovery nomodeset ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Tags: bionic Uname: Linux 5.3.0-62-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/24/2012 dmi.bios.vendor: Apple Inc. dmi.bios.version: MM51.88Z.0077.B10.1201241549 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-8ED6AF5B48C039E1 dmi.board.vendor: Apple Inc. dmi.board.version: Macmini5,1 dmi.chassis.type: 16 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-8ED6AF5B48C039E1 dmi.modalias: dmi:bvnAppleInc.:bvrMM51.88Z.0077.B10.1201241549:bd01/24/2012:svnAppleInc.:pnMacmini5,1:pvr1.0:rvnAppleInc.:rnMac-8ED6AF5B48C039E1:rvrMacmini5,1:cvnAppleInc.:ct16:cvrMac-8ED6AF5B48C039E1: dmi.product.family: Macmini dmi.product.name: Macmini5,1 dmi.product.sku: System SKU# dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc.
2020-07-03 02:37:26 guenthert attachment added CurrentDmesg.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389195/+files/CurrentDmesg.txt
2020-07-03 02:37:28 guenthert attachment added Dependencies.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389196/+files/Dependencies.txt
2020-07-03 02:37:30 guenthert attachment added Lspci.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389197/+files/Lspci.txt
2020-07-03 02:37:31 guenthert attachment added Lsusb.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389198/+files/Lsusb.txt
2020-07-03 02:37:34 guenthert attachment added ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389199/+files/ProcCpuinfo.txt
2020-07-03 02:37:37 guenthert attachment added ProcCpuinfoMinimal.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389200/+files/ProcCpuinfoMinimal.txt
2020-07-03 02:37:38 guenthert attachment added ProcEnviron.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389201/+files/ProcEnviron.txt
2020-07-03 02:37:41 guenthert attachment added ProcInterrupts.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389202/+files/ProcInterrupts.txt
2020-07-03 02:37:42 guenthert attachment added ProcModules.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389203/+files/ProcModules.txt
2020-07-03 02:37:44 guenthert attachment added SystemdDelta.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389204/+files/SystemdDelta.txt
2020-07-03 02:37:46 guenthert attachment added SystemdFailedUnits.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389205/+files/SystemdFailedUnits.txt
2020-07-03 02:37:49 guenthert attachment added UdevDb.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389206/+files/UdevDb.txt
2020-07-03 02:39:13 guenthert description After applying updates to Ubuntu 18.04 my desktop (apple mini with i5-2415M CPU) failed to complete the boot process. A few seconds into the boot, the last message displayed is "/var mounted". The system then appears to hang indefinitely. Luckily, the 'rescue' boot image allows the boot process to proceed sufficiently far to allow a root shell to be spawned. Unfortunately no log files were written during the unsuccessful attempts to boot. Spawning a 2nd root shell (# nohup getty tty5) on a 2nd virtual terminal (tty5) I was able to observe the message 'systemd freezing execution' after I closed the first root shell and resumed the boot process. Further a core file was created (belonging to /sbin/init) in the root fs --8<-- (gdb) bt #0 0x00007f16807ba187 in kill () at ../sysdeps/unix/syscall-template.S:78 #1 0x0000563b957223b7 in ?? () #2 <signal handler called> #3 __GI___libc_free (mem=0x4a60d140dfd9a5) at malloc.c:3103 #4 0x0000563b9577c22e in ?? () #5 0x0000563b957672d6 in ?? () #6 0x0000563b9576ba22 in ?? () #7 0x0000563b9574f51a in ?? () #8 0x00007f16803a509a in ?? () from /lib/systemd/libsystemd-shared-237.so #9 0x00007f16803a53ea in sd_event_dispatch () from /lib/systemd/libsystemd-shared-237.so #10 0x00007f16803a5579 in sd_event_run () from /lib/systemd/libsystemd-shared-237.so #11 0x0000563b9572a49d in ?? () #12 0x0000563b9571560c in ?? () #13 0x00007f168079cb97 in __libc_start_main (main=0x563b957139c0, argc=3, argv=0x7ffe78153758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe78153748) at ../csu/libc-start.c:310 #14 0x0000563b957164fa in ?? () (gdb) -->8-- and the kernel message buffer lists --8<-- traps: systemd[1] general protection fault ip:7f17ebf6e98d sp:7ffd774d6020 error:0 in libc-2.27.so[7f17ebed7000+1e7000] -->8-- . To me that looked a bit like Bug 669702 of Gentoo (https://bugs.gentoo.org/669702) and indeed one of the (few) updates applied just prior the reboot was the update of libseccomp. I was able to circumvent the problem by disabling (commenting out) the syscall filtering requested by systemd (on my system, only /etc/systemd/system/dbus-org.freedesktop.resolve1.service needed to be modified). --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CurrentDesktop: MATE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-03-30 (460 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Apple Inc. Macmini5,1 NonfreeKernelModules: wl Package: systemd 237-3ubuntu10.41 [modified: lib/systemd/system/systemd-resolved.service] PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-62-generic root=UUID=891c2e06-2b40-4e79-a57f-6e550be932bb ro recovery nomodeset ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Tags: bionic Uname: Linux 5.3.0-62-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/24/2012 dmi.bios.vendor: Apple Inc. dmi.bios.version: MM51.88Z.0077.B10.1201241549 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-8ED6AF5B48C039E1 dmi.board.vendor: Apple Inc. dmi.board.version: Macmini5,1 dmi.chassis.type: 16 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-8ED6AF5B48C039E1 dmi.modalias: dmi:bvnAppleInc.:bvrMM51.88Z.0077.B10.1201241549:bd01/24/2012:svnAppleInc.:pnMacmini5,1:pvr1.0:rvnAppleInc.:rnMac-8ED6AF5B48C039E1:rvrMacmini5,1:cvnAppleInc.:ct16:cvrMac-8ED6AF5B48C039E1: dmi.product.family: Macmini dmi.product.name: Macmini5,1 dmi.product.sku: System SKU# dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. After applying updates to Ubuntu 18.04 my desktop (apple mini with i5-2415M CPU) failed to complete the boot process. A few seconds into the boot, the last message displayed is "/var mounted". The system then appears to hang indefinitely. Luckily, the 'rescue' boot image allows the boot process to proceed sufficiently far to allow a root shell to be spawned. Unfortunately no log files were written during the unsuccessful attempts to boot. Spawning a 2nd root shell (# nohup getty tty5) on a 2nd virtual terminal (tty5) I was able to observe the message 'systemd freezing execution' after I closed the first root shell and resumed the boot process. Further a core file was created (belonging to /sbin/init) in the root fs --8<-- (gdb) bt #0 0x00007f16807ba187 in kill () at ../sysdeps/unix/syscall-template.S:78 #1 0x0000563b957223b7 in ?? () #2 <signal handler called> #3 __GI___libc_free (mem=0x4a60d140dfd9a5) at malloc.c:3103 #4 0x0000563b9577c22e in ?? () #5 0x0000563b957672d6 in ?? () #6 0x0000563b9576ba22 in ?? () #7 0x0000563b9574f51a in ?? () #8 0x00007f16803a509a in ?? () from /lib/systemd/libsystemd-shared-237.so #9 0x00007f16803a53ea in sd_event_dispatch () from /lib/systemd/libsystemd-shared-237.so #10 0x00007f16803a5579 in sd_event_run () from /lib/systemd/libsystemd-shared-237.so #11 0x0000563b9572a49d in ?? () #12 0x0000563b9571560c in ?? () #13 0x00007f168079cb97 in __libc_start_main (main=0x563b957139c0, argc=3, argv=0x7ffe78153758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe78153748) at ../csu/libc-start.c:310 #14 0x0000563b957164fa in ?? () (gdb) -->8-- and the kernel message buffer lists --8<-- traps: systemd[1] general protection fault ip:7f17ebf6e98d sp:7ffd774d6020 error:0 in libc-2.27.so[7f17ebed7000+1e7000] -->8-- . To me that looked a bit like Bug 669702 of Gentoo (https://bugs.gentoo.org/669702) and indeed one of the (few) updates applied just prior the reboot was the update of libseccomp. I was able to circumvent the problem by disabling (commenting out) the syscall filtering requested by systemd (on my system, only /etc/systemd/system/dbus-org.freedesktop.resolve1.service needed to be modified). --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CurrentDesktop: MATE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-03-30 (460 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Apple Inc. Macmini5,1 NonfreeKernelModules: wl Package: systemd 237-3ubuntu10.41 [modified: lib/systemd/system/systemd-resolved.service] PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-62-generic root=UUID=891c2e06-2b40-4e79-a57f-6e550be932bb ro recovery nomodeset ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Tags: bionic Uname: Linux 5.3.0-62-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/24/2012 dmi.bios.vendor: Apple Inc. dmi.bios.version: MM51.88Z.0077.B10.1201241549 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-8ED6AF5B48C039E1 dmi.board.vendor: Apple Inc. dmi.board.version: Macmini5,1 dmi.chassis.type: 16 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-8ED6AF5B48C039E1 dmi.modalias: dmi:bvnAppleInc.:bvrMM51.88Z.0077.B10.1201241549:bd01/24/2012:svnAppleInc.:pnMacmini5,1:pvr1.0:rvnAppleInc.:rnMac-8ED6AF5B48C039E1:rvrMacmini5,1:cvnAppleInc.:ct16:cvrMac-8ED6AF5B48C039E1: dmi.product.family: Macmini dmi.product.name: Macmini5,1 dmi.product.sku: System SKU# dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CurrentDesktop: MATE Dependencies: gcc-8-base 8.4.0-1ubuntu1~18.04 libc6 2.27-3ubuntu1 libgcc1 1:8.4.0-1ubuntu1~18.04 DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-03-30 (460 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) NonfreeKernelModules: wl Package: libseccomp2 2.4.3-1ubuntu3.18.04.2 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Tags: bionic Uname: Linux 5.3.0-62-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True
2020-07-03 02:39:15 guenthert attachment added ProcCpuinfoMinimal.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389207/+files/ProcCpuinfoMinimal.txt
2020-07-03 02:39:19 guenthert attachment added ProcEnviron.txt https://bugs.launchpad.net/bugs/1886115/+attachment/5389208/+files/ProcEnviron.txt
2020-07-06 06:34:36 Alex Murray libseccomp (Ubuntu): status New Incomplete
2020-07-06 06:34:41 Alex Murray systemd (Ubuntu): status New Incomplete
2020-07-06 20:47:00 guenthert attachment added original core dump of systemd-237-3ubuntu10.41 with libseccomp2-2.4.3-1ubuntu3 https://bugs.launchpad.net/ubuntu/+source/libseccomp/+bug/1886115/+attachment/5390306/+files/bug1886115.core
2020-07-07 13:37:53 Dan Streetman bug added subscriber Dan Streetman
2020-07-07 14:43:04 Jamie Strandboge bug watch added https://bugzilla.redhat.com/show_bug.cgi?id=1653068
2020-07-07 16:12:35 Dan Streetman nominated for series Ubuntu Bionic
2020-07-07 16:12:35 Dan Streetman bug task added systemd (Ubuntu Bionic)
2020-07-07 16:12:35 Dan Streetman bug task added libseccomp (Ubuntu Bionic)
2020-07-07 17:18:22 Dan Streetman description After applying updates to Ubuntu 18.04 my desktop (apple mini with i5-2415M CPU) failed to complete the boot process. A few seconds into the boot, the last message displayed is "/var mounted". The system then appears to hang indefinitely. Luckily, the 'rescue' boot image allows the boot process to proceed sufficiently far to allow a root shell to be spawned. Unfortunately no log files were written during the unsuccessful attempts to boot. Spawning a 2nd root shell (# nohup getty tty5) on a 2nd virtual terminal (tty5) I was able to observe the message 'systemd freezing execution' after I closed the first root shell and resumed the boot process. Further a core file was created (belonging to /sbin/init) in the root fs --8<-- (gdb) bt #0 0x00007f16807ba187 in kill () at ../sysdeps/unix/syscall-template.S:78 #1 0x0000563b957223b7 in ?? () #2 <signal handler called> #3 __GI___libc_free (mem=0x4a60d140dfd9a5) at malloc.c:3103 #4 0x0000563b9577c22e in ?? () #5 0x0000563b957672d6 in ?? () #6 0x0000563b9576ba22 in ?? () #7 0x0000563b9574f51a in ?? () #8 0x00007f16803a509a in ?? () from /lib/systemd/libsystemd-shared-237.so #9 0x00007f16803a53ea in sd_event_dispatch () from /lib/systemd/libsystemd-shared-237.so #10 0x00007f16803a5579 in sd_event_run () from /lib/systemd/libsystemd-shared-237.so #11 0x0000563b9572a49d in ?? () #12 0x0000563b9571560c in ?? () #13 0x00007f168079cb97 in __libc_start_main (main=0x563b957139c0, argc=3, argv=0x7ffe78153758, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe78153748) at ../csu/libc-start.c:310 #14 0x0000563b957164fa in ?? () (gdb) -->8-- and the kernel message buffer lists --8<-- traps: systemd[1] general protection fault ip:7f17ebf6e98d sp:7ffd774d6020 error:0 in libc-2.27.so[7f17ebed7000+1e7000] -->8-- . To me that looked a bit like Bug 669702 of Gentoo (https://bugs.gentoo.org/669702) and indeed one of the (few) updates applied just prior the reboot was the update of libseccomp. I was able to circumvent the problem by disabling (commenting out) the syscall filtering requested by systemd (on my system, only /etc/systemd/system/dbus-org.freedesktop.resolve1.service needed to be modified). --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CurrentDesktop: MATE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-03-30 (460 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Apple Inc. Macmini5,1 NonfreeKernelModules: wl Package: systemd 237-3ubuntu10.41 [modified: lib/systemd/system/systemd-resolved.service] PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-62-generic root=UUID=891c2e06-2b40-4e79-a57f-6e550be932bb ro recovery nomodeset ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Tags: bionic Uname: Linux 5.3.0-62-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/24/2012 dmi.bios.vendor: Apple Inc. dmi.bios.version: MM51.88Z.0077.B10.1201241549 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-8ED6AF5B48C039E1 dmi.board.vendor: Apple Inc. dmi.board.version: Macmini5,1 dmi.chassis.type: 16 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-8ED6AF5B48C039E1 dmi.modalias: dmi:bvnAppleInc.:bvrMM51.88Z.0077.B10.1201241549:bd01/24/2012:svnAppleInc.:pnMacmini5,1:pvr1.0:rvnAppleInc.:rnMac-8ED6AF5B48C039E1:rvrMacmini5,1:cvnAppleInc.:ct16:cvrMac-8ED6AF5B48C039E1: dmi.product.family: Macmini dmi.product.name: Macmini5,1 dmi.product.sku: System SKU# dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CurrentDesktop: MATE Dependencies: gcc-8-base 8.4.0-1ubuntu1~18.04 libc6 2.27-3ubuntu1 libgcc1 1:8.4.0-1ubuntu1~18.04 DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-03-30 (460 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) NonfreeKernelModules: wl Package: libseccomp2 2.4.3-1ubuntu3.18.04.2 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Tags: bionic Uname: Linux 5.3.0-62-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True [impact] systemd sometimes crashes on boot due to free of uninitalized var [test case] a specific system setup is required, see original description [regression potential] any regression would likely involve further crashes on boot. [scope] this is needed in b. this is fixed upstream by commit 58d9d89b4b41189bdcea86c2ad5cf708b7d54aca which is included starting in v240, so this is included already in f and later. this is caused by commit 25cd49647c8 which is included starting in v237, so this bug does not exist in x. [original description] After applying updates to Ubuntu 18.04 my desktop (apple mini with i5-2415M CPU) failed to complete the boot process. A few seconds into the boot, the last message displayed is "/var mounted". The system then appears to hang indefinitely.   Luckily, the 'rescue' boot image allows the boot process to proceed sufficiently far to allow a root shell to be spawned. Unfortunately no log files were written during the unsuccessful attempts to boot. Spawning a 2nd root shell (# nohup getty tty5) on a 2nd virtual terminal (tty5) I was able to observe the message 'systemd freezing execution' after I closed the first root shell and resumed the boot process. Further a core file was created (belonging to /sbin/init) in the root fs --8<-- (gdb) bt #0 0x00007f16807ba187 in kill () at ../sysdeps/unix/syscall-template.S:78 #1 0x0000563b957223b7 in ?? () #2 <signal handler called> #3 __GI___libc_free (mem=0x4a60d140dfd9a5) at malloc.c:3103 #4 0x0000563b9577c22e in ?? () #5 0x0000563b957672d6 in ?? () #6 0x0000563b9576ba22 in ?? () #7 0x0000563b9574f51a in ?? () #8 0x00007f16803a509a in ?? () from /lib/systemd/libsystemd-shared-237.so #9 0x00007f16803a53ea in sd_event_dispatch () from /lib/systemd/libsystemd-shared-237.so #10 0x00007f16803a5579 in sd_event_run () from /lib/systemd/libsystemd-shared-237.so #11 0x0000563b9572a49d in ?? () #12 0x0000563b9571560c in ?? () #13 0x00007f168079cb97 in __libc_start_main (main=0x563b957139c0, argc=3, argv=0x7ffe78153758,     init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>,     stack_end=0x7ffe78153748) at ../csu/libc-start.c:310 #14 0x0000563b957164fa in ?? () (gdb) -->8--  and the kernel message buffer lists --8<-- traps: systemd[1] general protection fault ip:7f17ebf6e98d sp:7ffd774d6020 error:0 in libc-2.27.so[7f17ebed7000+1e7000] -->8-- .   To me that looked a bit like Bug 669702 of Gentoo (https://bugs.gentoo.org/669702) and indeed one of the (few) updates applied just prior the reboot was the update of libseccomp.   I was able to circumvent the problem by disabling (commenting out) the syscall filtering requested by systemd (on my system, only /etc/systemd/system/dbus-org.freedesktop.resolve1.service needed to be modified). --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CurrentDesktop: MATE DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-03-30 (460 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) MachineType: Apple Inc. Macmini5,1 NonfreeKernelModules: wl Package: systemd 237-3ubuntu10.41 [modified: lib/systemd/system/systemd-resolved.service] PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.3.0-62-generic root=UUID=891c2e06-2b40-4e79-a57f-6e550be932bb ro recovery nomodeset ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Tags: bionic Uname: Linux 5.3.0-62-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/24/2012 dmi.bios.vendor: Apple Inc. dmi.bios.version: MM51.88Z.0077.B10.1201241549 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-8ED6AF5B48C039E1 dmi.board.vendor: Apple Inc. dmi.board.version: Macmini5,1 dmi.chassis.type: 16 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-8ED6AF5B48C039E1 dmi.modalias: dmi:bvnAppleInc.:bvrMM51.88Z.0077.B10.1201241549:bd01/24/2012:svnAppleInc.:pnMacmini5,1:pvr1.0:rvnAppleInc.:rnMac-8ED6AF5B48C039E1:rvrMacmini5,1:cvnAppleInc.:ct16:cvrMac-8ED6AF5B48C039E1: dmi.product.family: Macmini dmi.product.name: Macmini5,1 dmi.product.sku: System SKU# dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. --- ProblemType: Bug ApportVersion: 2.20.9-0ubuntu7.15 Architecture: amd64 CurrentDesktop: MATE Dependencies:  gcc-8-base 8.4.0-1ubuntu1~18.04  libc6 2.27-3ubuntu1  libgcc1 1:8.4.0-1ubuntu1~18.04 DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2019-03-30 (460 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) NonfreeKernelModules: wl Package: libseccomp2 2.4.3-1ubuntu3.18.04.2 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.3.0-62.56~18.04.1-generic 5.3.18 Tags: bionic Uname: Linux 5.3.0-62-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo _MarkForUpload: True
2020-07-07 17:18:26 Dan Streetman systemd (Ubuntu): status Incomplete Fix Released
2020-07-07 17:18:27 Dan Streetman systemd (Ubuntu Bionic): status New In Progress
2020-07-07 17:18:29 Dan Streetman systemd (Ubuntu Bionic): importance Undecided Medium
2020-07-07 17:18:30 Dan Streetman systemd (Ubuntu Bionic): assignee Dan Streetman (ddstreet)
2020-07-30 13:04:53 Łukasz Zemczak systemd (Ubuntu Bionic): status In Progress Fix Committed
2020-07-30 13:04:55 Łukasz Zemczak bug added subscriber Ubuntu Stable Release Updates Team
2020-07-30 13:04:58 Łukasz Zemczak bug added subscriber SRU Verification
2020-07-30 13:05:01 Łukasz Zemczak tags apport-collected bionic apport-collected bionic verification-needed verification-needed-bionic
2020-07-30 20:27:54 Dan Streetman tags apport-collected bionic verification-needed verification-needed-bionic apport-collected bionic verification-done verification-done-bionic
2020-08-05 12:34:39 Launchpad Janitor systemd (Ubuntu Bionic): status Fix Committed Fix Released
2020-08-05 12:34:57 Łukasz Zemczak removed subscriber Ubuntu Stable Release Updates Team