Control: tag -1 + confirmed Control: retitle -1 all qemu guests with nec-usb-xhci crash during startup (assertion falure)
28.07.2017 00:42, Ulrich Baum wrote: > Package: qemu-system-x86 > Version: 1:2.8+dfsg-6+deb9u1 > > When I try to start any kvm guest via virsh start <guest>, the guest > crashes during startup. See log extract below. > Downgrading to qemu-system-x86=1:2.8+dfsg-6 solves the problem. > > Extract from /var/log/libvirt/qemu/guest.log : > /usr/bin/qemu-system-x86_64 -name guest=a,debug-threads=on -S -object ... > strict=on -device nec-usb-xhci,id ... > warning: host doesn't support requested feature: CPUID.01H:EDX.ds [bit 21] > warning: host doesn't support requested feature: CPUID.01H:EDX.acpi [bit 22] > warning: host doesn't support requested feature: CPUID.01H:EDX.ht [bit 28] > warning: host doesn't support requested feature: CPUID.01H:EDX.tm [bit 29] > warning: host doesn't support requested feature: CPUID.01H:EDX.pbe [bit 31] > warning: host doesn't support requested feature: CPUID.01H:ECX.dtes64 [bit 2] > warning: host doesn't support requested feature: CPUID.01H:ECX.monitor [bit 3] > warning: host doesn't support requested feature: CPUID.01H:ECX.ds-cpl [bit 4] > warning: host doesn't support requested feature: CPUID.01H:ECX.vmx [bit 5] > warning: host doesn't support requested feature: CPUID.01H:ECX.est [bit 7] > warning: host doesn't support requested feature: CPUID.01H:ECX.tm2 [bit 8] > warning: host doesn't support requested feature: CPUID.01H:ECX.xtpr [bit 14] > warning: host doesn't support requested feature: CPUID.01H:ECX.pdcm [bit 15] > warning: host doesn't support requested feature: CPUID.01H:ECX.osxsave [bit > 27] I'm not sure what this means, it'd be interesting to know, but it is unrelated. > qemu-system-x86_64: > /build/qemu-0Yb2kr/qemu-2.8+dfsg/hw/usb/hcd-xhci.c:2169: > xhci_kick_epctx: A > ssertion `!epctx->kick_active' failed. And here we go. This is due to (apparently wrong) security fix in 1:2.8+dfsg-6+deb9u1, "xhci: guard xhci_kick_epctx against recursive calls". I'll investigate further. Thanks! /mjt
