https://bugzilla.kernel.org/show_bug.cgi?id=198843 --- Comment #3 from Ujwal Setlur (ujwal.setlur@xxxxxxxxx) --- I ended up killing the L2 qemu-kvm process on L1 in the second case. Here is the crash when L1 dies in the second case. It's the same crash as in the first case. It looks like there is a problem in "releasing" the guest. [ 624.974359] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.13.0-1008-gcp #11-Ubuntu [ 624.981865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 624.991188] task: ffffffffb5e12480 task.stack: ffffffffb5e00000 [ 624.997218] RIP: 0010:native_write_cr4+0x4/0x10 [ 625.001852] RSP: 0018:ffff89947fc03f48 EFLAGS: 00010006 [ 625.007577] RAX: 00000000001626f0 RBX: ffff89947fc23c68 RCX: ffff89947fc23c90 [ 625.014827] RDX: ffff89947fc14020 RSI: 0000000000000000 RDI: 00000000001606f0 [ 625.022069] RBP: ffff89947fc03f48 R08: 000000000000000a R09: 0000000000000002 [ 625.029314] R10: 0000000000000015 R11: 0000000100013d4f R12: 0000000000023c90 [ 625.036555] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 625.043806] FS: 0000000000000000(0000) GS:ffff89947fc00000(0000) knlGS:0000000000000000 [ 625.052001] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 625.057849] CR2: 00007f8c3b5dd024 CR3: 00000007e340a004 CR4: 00000000001626f0 [ 625.065091] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 625.072328] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 625.079576] Call Trace: [ 625.082123] <IRQ> [ 625.084265] hardware_disable+0x91/0xa0 [kvm_intel] [ 625.089271] kvm_arch_hardware_disable+0x13/0x40 [kvm] [ 625.094558] hardware_disable_nolock+0x2f/0x40 [kvm] [ 625.099630] flush_smp_call_function_queue+0x72/0x110 [ 625.104783] generic_smp_call_function_single_interrupt+0x13/0x30 [ 625.110988] smp_trace_call_function_single_interrupt+0x27/0x40 [ 625.117012] smp_call_function_interrupt+0xe/0x10 [ 625.121822] call_function_interrupt+0x1af/0x1c0 [ 625.126561] </IRQ> -- You are receiving this mail because: You are watching the assignee of the bug.
