** Description changed: - lxd 0.12-0ubuntu2 - libgo7/5.1.1-12ubuntu1 + [Impact] + Various go-based packages crash on startup on arm64 when booted with a kernel where CONFIG_ARM64_PGTABLE_LEVELS=4. LXD, docker and juju are examples. - Jul 08 00:11:16 vital-beggar systemd[1]: Starting Container hypervisor based on LXC... - -- Subject: Unit lxd.service has begun start-up - -- Defined-By: systemd - -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel - -- - -- Unit lxd.service has begun starting up. - Jul 08 00:11:16 vital-beggar lxd[1712]: p=0xffff98d18000 - Jul 08 00:11:16 vital-beggar lxd[1712]: fatal error: runtime_lfstackpush: invalid pointer - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime stack: - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime_dopanic - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/panic.c:135 - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime_throw - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/panic.c:193 - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime.lfstackpush - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/lfstack.goc:40 - Jul 08 00:11:16 vital-beggar lxd[1712]: getempty - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/mgc0.c:1377 - Jul 08 00:11:16 vital-beggar lxd[1712]: enqueue1 - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/mgc0.c:1255 - Jul 08 00:11:16 vital-beggar lxd[1712]: markroot - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/mgc0.c:1285 - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime_parfordo - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/parfor.c:88 - Jul 08 00:11:16 vital-beggar lxd[1712]: gc - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/mgc0.c:2266 - Jul 08 00:11:16 vital-beggar lxd[1712]: mgc - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/mgc0.c:2211 - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime_mstart - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/proc.c:1076 - Jul 08 00:11:16 vital-beggar lxd[1712]: goroutine 16 [garbage collection]: - Jul 08 00:11:16 vital-beggar systemd[1]: lxd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT - Jul 08 00:11:16 vital-beggar systemd[1]: lxd.service: Unit entered failed state. - Jul 08 00:11:16 vital-beggar systemd[1]: lxd.service: Failed with result 'exit-code'. - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime_mcall - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/proc.c:295 - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime_gc - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/mgc0.c:2187 - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime_mallocgc - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/malloc.goc:259 - Jul 08 00:11:16 vital-beggar lxd[1712]: :0 - Jul 08 00:11:16 vital-beggar lxd[1712]: :0 - Jul 08 00:11:16 vital-beggar lxd[1712]: runtime_main - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/proc.c:626 - Jul 08 00:11:16 vital-beggar lxd[1712]: goroutine 17 [runnable]: - Jul 08 00:11:16 vital-beggar lxd[1712]: kickoff - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/proc.c:232 - Jul 08 00:11:16 vital-beggar lxd[1712]: created by runtime_main - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/proc.c:598 - Jul 08 00:11:16 vital-beggar lxd[1712]: goroutine 18 [runnable]: - Jul 08 00:11:16 vital-beggar lxd[1712]: kickoff - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/proc.c:232 - Jul 08 00:11:16 vital-beggar lxd[1712]: created by runtime_createfing - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/mgc0.c:2572 - Jul 08 00:11:16 vital-beggar lxd[1712]: goroutine 19 [runnable]: - Jul 08 00:11:16 vital-beggar lxd[1712]: kickoff - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/runtime/proc.c:232 - Jul 08 00:11:16 vital-beggar lxd[1712]: created by os_signal..import - Jul 08 00:11:16 vital-beggar lxd[1712]: ../../../src/libgo/go/os/signal/signal_unix.go:25 - Jul 08 00:11:16 vital-beggar systemd[1]: lxd.service: Service hold-off time over, scheduling restart. - Jul 08 00:11:16 vital-beggar systemd[1]: lxd.service: Start request repeated too quickly. - Jul 08 00:11:16 vital-beggar systemd[1]: Failed to start Container hypervisor based on LXC. - -- Subject: Unit lxd.service has failed - -- Defined-By: systemd - -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel - -- - -- Unit lxd.service has failed. - -- - -- The result is failed. - Jul 08 00:11:16 vital-beggar systemd[1]: lxd.service: Unit entered failed state. - Jul 08 00:11:16 vital-beggar systemd[1]: lxd.service: Failed with result 'start-limit'. + Ubuntu does not ship with this config, so it is currently not impacted. + However, we would like to enable this config to add new hardware support + in 15.10. The 15.10 kernel will eventually be provided in trusty as an + lts backport, at which point this will begin to break users. + + [Test Case] + Boot an arm64 system with CONFIG_ARM64_PGTABLE_LEVELS=4 enabled in the kernel. Install docker.io and run "docker help". If it fails, you'll see "fatal error: runtime_lfstackpush" followed by a stack trace. If it succeeds, you'll get normal help output. + + [Regression Risk] + The risk of regression is lessened by testing this release on existing Ubuntu kernels w/ 3 level page tables.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1472650 Title: [arm64] gccgo runtime crashes with CONFIG_ARM64_PGTABLE_LEVELS=4 To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/1472650/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
