This should be a kvm kernel bug. As 'bugzilla.kernel.org' is down, I reported it here just for tracking.
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/912612 Title: rhel5u5 guest panic when booting up Status in QEMU: New Bug description: Environment: ------------ Host OS (ia32/ia32e/IA64): ia32e Guest OS (ia32/ia32e/IA64): ia32e Guest OS Type (Linux/Windows): Linux(rhel5u5) kvm.git Commit:781f306789361d671187d9ddb518eea3ffda786a qemu-kvm Commit:2850e9e3d3119f98ff775a75503b2153836c7475 Host Kernel Version:3.2.0-rc7 Hardware: Westmere-EP Bug detailed description: -------------------------- rhel5u5 guest panic when booting up in the latest kvm upstream. When I tried rhel6u1 as a guest, I didn't met the guest panic issue. This should be a kvm kernel bug. kvm + qemu-kvm = result 781f3067 + 2850e9e3 = bad 08a95a51 + 2850e9e3 = good guest panic serial log is attached. Reproduce steps: ---------------- 1.start up a host with kvm (commit:781f3067) 2.qemu-system-x86_64 -mem 512 -hda /root/rhel5u5.img Current result: ---------------- guest panic Expected result: ---------------- guest boot up correctly Basic root-causing log: ---------------------- SMP alternatives: switching to UP code Freeing SMP alternatives: 32k freed ACPI: Core revision 20060707 general protection fault: 0000 [1] SMP last sysfs file: CPU 0 Modules linked in: Pid: 1, comm: swapper Not tainted 2.6.18-194.el5 #1 RIP: 0010:[<ffffffff8007f1df>] [<ffffffff8007f1df>] setup_p6_watchdog+0x2f/0x7a RSP: 0000:ffff81000114be50 EFLAGS: 00000246 RAX: 0000000000130079 RBX: 0000000000000186 RCX: 0000000000000186 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000003e8 RBP: 0000000000090000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8100010353e8 R13: 00000000000000c1 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffffff803cb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0 Process swapper (pid: 1, threadinfo ffff81000114a000, task ffff81001fd3e7a0) Stack: 00000000000003e8 0000000000000000 00000000000000ff ffffffff8007efcf ffffffff8043e288 ffffffff800795d1 0000000000000800 ffffffff80078e9a 0000000000000800 ffffffff80411712 0000000000090000 0000000000000800 Call Trace: [<ffffffff8007efcf>] lapic_watchdog_init+0x1b/0x3c [<ffffffff800795d1>] setup_apic_nmi_watchdog+0x42/0x8a [<ffffffff80078e9a>] setup_local_APIC+0x17b/0x187 [<ffffffff80411712>] smp_prepare_cpus+0x34a/0x360 [<ffffffff804078c5>] init+0x62/0x2f7 [<ffffffff8005efb1>] child_rip+0xa/0x11 [<ffffffff801824cc>] acpi_ds_init_one_object+0x0/0x80 [<ffffffff80407863>] init+0x0/0x2f7 [<ffffffff8005efa7>] child_rip+0x0/0x11 To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/912612/+subscriptions
