I was able to observe the crash on a Ubuntu Xenial Xen host which produced the following text on the host console:
(XEN) domain_crash called from hpet.c:387 (XEN) Domain 2 (vcpu#1) crashed on cpu#4: (XEN) ----[ Xen-4.6.5 x86_64 debug=n Not tainted ]---- (XEN) CPU: 4 (XEN) RIP: 0010:[<ffffffff81532dc1>] (XEN) RFLAGS: 0000000000010002 CONTEXT: hvm guest (d2v1) (XEN) rax: 0000000000000032 rbx: ffff880034e41a00 rcx: 0000000000000000 (XEN) rdx: 0000000000000001 rsi: 0000000000000032 rdi: ffffffff821fdfb0 (XEN) rbp: ffff8800e90afc10 rsp: ffff8800e90afbd8 r8: 0000000000000003 (XEN) r9: 0000000000000000 r10: 000000000000000a r11: 0000000000000000 (XEN) r12: ffff880107a4a8f8 r13: ffffffff821fdfb0 r14: ffffc90000002140 (XEN) r15: ffffffff81a7c600 cr0: 0000000080050033 cr4: 0000000000360670 (XEN) cr3: 000000003492c000 cr2: 00007fcc1156a030 (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: 0018 cs: 0010 Will investigate further (whether this persists in newer xen versions) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-aws in Ubuntu. https://bugs.launchpad.net/bugs/1741409 Title: stress smoke test hang with dev test on AWS Xenial kernel Status in linux-aws package in Ubuntu: In Progress Bug description: The test will hang on dev STARTING, and get killed by the timeout setting. DEBUG| [stdout] dccp PASSED DEBUG| [stdout] dentry STARTING DEBUG| [stdout] dentry RETURNED 0 DEBUG| [stdout] dentry PASSED DEBUG| [stdout] dev STARTING No interesting output in dmesg: [ 8.281861] random: nonblocking pool is initialized [ 8.338335] ppdev: user-space parallel port driver [ 11.662848] cgroup: new mount options do not match the existing superblock, will be ignored [ 12.272168] systemd[1]: Started ACPI event daemon. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-1045-aws 4.4.0-1045.54 ProcVersionSignature: User Name 4.4.0-1045.54-aws 4.4.98 Uname: Linux 4.4.0-1045-aws x86_64 ApportVersion: 2.20.1-0ubuntu2.14 Architecture: amd64 Date: Fri Jan 5 06:47:45 2018 Ec2AMI: ami-a2e544da Ec2AMIManifest: (unknown) Ec2AvailabilityZone: us-west-2b Ec2InstanceType: t2.nano Ec2Kernel: unavailable Ec2Ramdisk: unavailable ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-aws UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/1741409/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

