On 04/09/18 09:45, Wei Liu wrote: > On Tue, Sep 04, 2018 at 07:55:04AM +0000, osstest service owner wrote: >> flight 127247 xen-unstable-smoke real [real] >> http://logs.test-lab.xenproject.org/osstest/logs/127247/ >> >> Regressions :-( >> >> Tests which did not succeed and are blocking, >> including tests which could not be run: >> test-amd64-amd64-xl-qemuu-debianhvm-i386 10 debian-hvm-install fail REGR. >> vs. 127212 > Sep 4 06:49:12.366727 (XEN) MMIO emulation failed (1): d107v0 32bit @ > 0000:00100000 -> 55 89 e5 53 83 ec 10 8b 55 0c b8 20 02 08 00 8b > Sep 4 06:49:12.378690 (XEN) d107v0 Triple fault - invoking HVM shutdown > action 1 > Sep 4 06:49:12.378727 (XEN) *** Dumping Dom107 vcpu#0 state: *** > Sep 4 06:49:12.378755 (XEN) ----[ Xen-4.12-unstable x86_64 debug=y Not > tainted ]---- > Sep 4 06:49:12.390738 (XEN) CPU: 0 > Sep 4 06:49:12.390796 (XEN) RIP: 0000:[<0000000000100000>] > Sep 4 06:49:12.390846 (XEN) RFLAGS: 0000000000010002 CONTEXT: hvm guest > (d107v0) > Sep 4 06:49:12.402729 (XEN) rax: 0000000000000000 rbx: 00000000001a8000 > rcx: 0000000000000000 > Sep 4 06:49:12.402796 (XEN) rdx: 0000000000000000 rsi: 0000000000000000 > rdi: 0000000000000000 > Sep 4 06:49:12.414742 (XEN) rbp: 0000000000000000 rsp: 0000000000000000 > r8: 0000000000000000 > Sep 4 06:49:12.426728 (XEN) r9: 0000000000000000 r10: 0000000000000000 > r11: 0000000000000000 > Sep 4 06:49:12.426795 (XEN) r12: 0000000000000000 r13: 0000000000000000 > r14: 0000000000000000 > Sep 4 06:49:12.438672 (XEN) r15: 0000000000000000 cr0: 0000000000000011 > cr4: 0000000000000000 > Sep 4 06:49:12.450724 (XEN) cr3: 0000000000000000 cr2: 0000000000000000 > Sep 4 06:49:12.450787 (XEN) fsb: 0000000000000000 gsb: 0000000000000000 > gss: 0000000000000000 > Sep 4 06:49:12.462739 (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: > 0000 cs: 0000 > Sep 4 06:49:12.462805 [ 647.449914] xenbr0: port 3(vif107.0-emu) entered > disabled state > > Looking at the range of changeset there is one potential culprit: > > x86/hvm: Fix mapping corner case during task switching
You've already R-by the patch which fixes this bug. HVMLoader doesn't work too well when it tries to execute hypercall_xen_version first, without a working stack. There is a separate bug here which is xl/libxl's approach to crashing guests. If you notice, it reboots ad-infinitum until OSSTest times out. It is nigh on impossible to stop a runaway domain like this with libxl. The best I've come up with is to mv the kernel binary sideways so the next reboot gets ESRCH. ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
