Date: Mon, 08 Apr 2019 21:28:43 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 237124] [xen] Crash or freeze during boot with multiple network interfaces in HVM mode with i386 kernel Message-ID: <bug-237124-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237124 Bug ID: 237124 Summary: [xen] Crash or freeze during boot with multiple network interfaces in HVM mode with i386 kernel Product: Base System Version: 12.0-RELEASE Hardware: i386 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: freebsdbugs@linuxhosted.ca While attempting to migrate some virtual machines from a Xen 3.4 host to Xen 4.8 host (both Linux), we discovered that some FreeBSD domU vms were either freezing or crashing during boot, once on the Xen 4.8 host. After a bit of investigation it was determined that the same issue was causing both the crashes and freezes. In each case, the last kernel message seen would be: xn0: backend features: feature-sg feature-gso-tcp4 After some more investigation, it was determined that booting with only 1 network interface worked fine (the problem VMs have 2 interfaces), and that the problem only seems to exist with the i386 kernels. I tried various versions of 11.0, 11.1, 11.2, and 12.0 RELEASE kernels, the only ones that would work with more than 1 network interface are the amd64 kernels. So to summarize, to reproduce the bug: Xen 4.8 host dom0 HVM domU VM with multiple network interfaces Boot FreeBSD i386 kernel (even just booting from a FreeBSD iso encounters the bug) Below is the VM's xen config file: name = "FreeBSD-test" maxmem = "1024" memory = "1024" vcpus = "2" builder = "hvm" kernel = "/usr/lib/xen/boot/hvmloader" device_model_version = "qemu-xen-traditional" device_model_override = "/usr/lib64/xen/bin/qemu-dm" xen_platform_pci = "1" boot = "d" pae = "1" acpi = "1" apic = "1" localtime = "0" on_poweroff = "destroy" on_reboot = "destroy" on_crash = "destroy" sdl = "0" serial = "pty" vnc = 1 vnclisten = "0.0.0.0" vncconsole = 0 vncunused = 0 vncdisplay = 1 shadow_memory = "8" disk = [ "file:/vms/FreeBSD-test.img,hda,w", "file:/iso/FreeBSD-12.0-RELEASE-i386-disc1.iso,hdc,r,devtype=cdrom" ] vif = [ "mac=00:16:3e:00:3d:42,bridge=xenbr0,model=e1000", "mac=00:16:3e:00:3e:42,bridge=xenbr1,model=e1000" ] cpu_weight = "1024" -- You are receiving this mail because: You are the assignee for the bug.home | help
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