[Pkg-xen-devel] Bug#934786: xen-system-amd64: xen host crashes when calling "npm run build" in a vm (reproducible)

[mario]

Package: xen-system-amd64
Version: 4.8.5+shim4.10.2+xsa282-1+deb9u11
Severity: important

hello everyone,

we have a vm with kernel 4.9.0-5-amd64 running dabian oldstable
if we run an "npm run build" on one of the virtual machines, the whole xen-host system will restart (reset)
there is no message, neither in the kernel nor in the syslog.

if we update the kernel of the virtual machine to 4.9.0-9-amd64, the problem is no longer there and the build runs without errors.

the kernel of the hosts system doesn't matter, even the latest 4.9.0-9-amd64 doesn't help.

we have a second server (with different hardware) also here i can crash the complete xen-server from the vm with all vms that are running.

the whole thing works reproducible by starting "npm run build" on this special vm

any idea how we can narrow that down and provide more information???

kind regards
mario



-- System Information:
Debian Release: 9.9
  APT prefers oldstable-updates
  APT policy: (500, 'oldstable-updates'), (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-5-amd64 (SMP w/16 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages xen-system-amd64 depends on:
ii  xen-hypervisor-4.8-amd64  4.8.5+shim4.10.2+xsa282-1+deb9u11
ii  xen-utils-4.8             4.8.5+shim4.10.2+xsa282-1+deb9u11

xen-system-amd64 recommends no packages.

xen-system-amd64 suggests no packages.

-- no debconf information