+++ This bug was initially created as a clone of Bug #1523166 +++ Description of problem: guest kernel panic when boot with 9 e1000 nics that with io-server=0 Version-Release number of selected component (if applicable): [root@localhost test]# uname -r 3.10.0-807.el7.x86_64 [root@localhost test]# rpm -qa |grep qemu-kvm-rhev qemu-kvm-rhev-debuginfo-2.10.0-11.el7.x86_64 qemu-kvm-rhev-2.10.0-11.el7.x86_64 [root@localhost test]# rpm -qa |grep seabios seabios-bin-1.11.0-1.el7.noarch seabios-1.11.0-1.el7.x86_64 How reproducible: 3/3 Steps to Reproduce: 1. Boot up 9 e1000 nics with [1] 2. Check guest status Actual results: guest kernel panic [ 0.842671] BUG: unable to handle kernel paging request at fffffffd49d872f0 [ 0.843405] IP: [<ffffffffb2ce168d>] cpuacct_charge+0x2d/0x50 [ 0.843918] PGD 53e11067 PUD 0 [ 0.844281] Thread overran stack, or stack corrupted [ 0.844690] Oops: 0000 [#1] SMP [ 0.845058] Modules linked in: [ 0.845369] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.10.0-768.el7.x86_64 #1 [ 0.845948] Hardware name: Red Hat KVM, BIOS 1.11.0-1.el7 04/01/2014 [ 0.847178] task: ffff938f7c7b8000 ti: ffff938f7c7ac000 task.ti: ffff938f7c7ac000 [ 0.847790] RIP: 0010:[<ffffffffb2ce168d>] [<ffffffffb2ce168d>] cpuacct_charge+0x2d/0x50 [ 0.848583] RSP: 0000:ffff938f7fd83e40 EFLAGS: 00010046 [ 0.849063] RAX: 000000000000fba8 RBX: ffff938f7c7b8068 RCX: ffffffffb2c8b14a [ 0.849689] RDX: ffffffffb38555c0 RSI: 0000000000114ef4 RDI: ffff938f7c7b8000 [ 0.850288] RBP: ffff938f7fd83e40 R08: 0000000000000400 R09: 0000000000000400 [ 0.850859] R10: 0000000000000004 R11: 0000000000000005 R12: 0000000000114ef4 [ 0.851433] R13: ffff938f7fd96e00 R14: ffff938f7c7b8000 R15: 0000000000000000 [ 0.852494] FS: 0000000000000000(0000) GS:ffff938f7fd80000(0000) knlGS:0000000000000000 [ 0.853238] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 0.853706] CR2: fffffffd49d872f0 CR3: 0000000053e0e000 CR4: 00000000000006e0 [ 0.854282] Call Trace: [ 0.854505] <IRQ> [ 0.854691] [<ffffffffb2cd06b4>] update_curr+0x104/0x190 [ 0.855734] [<ffffffffb2cd1bbd>] task_tick_fair+0x2bd/0x660 [ 0.856446] [<ffffffffb2c347a9>] ? sched_clock+0x9/0x10 [ 0.857139] [<ffffffffb2cca535>] ? sched_clock_cpu+0x85/0xc0 [ 0.857855] [<ffffffffb2cc5c17>] scheduler_tick+0xc7/0x150 [ 0.858600] [<ffffffffb2c9d085>] update_process_times+0x65/0x80 [ 0.859380] [<ffffffffb2cf438b>] tick_periodic+0x2b/0x90 [ 0.860119] [<ffffffffb2cf4411>] tick_handle_periodic+0x21/0x80 [ 0.860900] [<ffffffffb2c55195>] local_apic_timer_interrupt+0x35/0x60 [ 0.861741] [<ffffffffb32dae7d>] smp_apic_timer_interrupt+0x3d/0x50 [ 0.862566] [<ffffffffb32d935d>] apic_timer_interrupt+0x6d/0x80 [ 0.863335] <EOI> [ 0.863522] [<ffffffffb32cee55>] ? _raw_spin_unlock_irqrestore+0x15/0x20 [ 0.864753] [<ffffffffb2f6db26>] pci_bus_write_config_word+0x66/0x80 [ 0.865568] [<ffffffffb2f725a5>] pci_scan_bridge+0x2b5/0x6a0 [ 0.866330] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.867150] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.867912] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.868674] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.869488] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.870267] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.871021] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.871833] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.872614] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.873364] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.874193] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.874958] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.875707] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.876527] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.877302] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.878084] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.878891] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.879668] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.880418] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.881244] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.882645] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.883367] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.884142] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.884831] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.885572] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.886369] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.887147] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.887907] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.888714] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.889507] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.890262] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.891090] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.891854] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.892573] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.893334] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.894066] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.894784] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.895586] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.896360] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.897125] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.897945] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.898706] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.899450] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.900236] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.901012] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.901770] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.902598] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.903351] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.904115] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.904932] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.905695] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.906488] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.907306] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.908092] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.908843] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.909673] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.910426] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.911189] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.912539] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.913459] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.914187] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.914948] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.915719] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.916458] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.917295] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.918072] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.918853] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.919700] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.920482] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.921248] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.922030] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.922757] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.923527] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.924374] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.925152] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.925934] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.926737] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.927553] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.928333] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.929153] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.929938] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.930686] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.931526] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.932321] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.933039] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.933800] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.934531] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.935248] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.936014] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.936743] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.937461] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.938225] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.938956] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.939672] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.940434] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.941165] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.941881] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.943015] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.943705] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.944396] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.945163] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.945896] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.946619] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.947386] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.948121] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.948841] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.949609] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.950343] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.951066] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.951832] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.952568] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.953295] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.954060] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.954809] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.955529] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.956290] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.957023] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.957739] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.958501] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.959232] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.959950] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.960710] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.961440] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.962156] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.962917] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.963647] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.964365] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.965128] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.965856] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.966574] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.967336] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.968066] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.968781] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.969543] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.970272] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.970990] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.971749] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.973000] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.973679] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.974404] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.975142] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.975857] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.976618] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.977347] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.978064] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.978823] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.979554] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.980270] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.981032] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.981759] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.982475] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.983235] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.983964] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.984681] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.985443] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.986173] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.986887] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.987650] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.988379] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.989097] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.989857] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.990586] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.991302] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 0.992064] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 0.999173] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 0.999893] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.000654] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.001382] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.002605] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.003526] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.004260] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.004978] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.005736] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.006465] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.007182] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.007942] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.008669] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.009416] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.010231] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.010971] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.011690] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.012450] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.013179] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.013894] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.014657] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.015386] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.016103] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.016862] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.017591] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.018308] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.019070] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.019798] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.020514] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.021274] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.022005] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.022719] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.023480] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.024210] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.024925] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.025686] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.026416] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.027134] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.027894] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.028623] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.029344] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.030106] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.030833] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.031551] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.032834] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.033574] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.034254] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.034999] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.035772] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.036536] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.037340] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.038125] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.038876] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.039692] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.040451] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.041240] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.042056] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.042810] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.043586] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.044360] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.045104] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.045828] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.046628] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.047401] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.048162] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.048988] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.049738] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.050514] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.051331] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.052126] [<ffffffffb2f72825>] pci_scan_bridge+0x535/0x6a0 [ 1.052867] [<ffffffffb2f71614>] ? pci_scan_single_device+0x74/0xf0 [ 1.053695] [<ffffffffb2f72a46>] pci_scan_child_bus+0xb6/0x190 [ 1.054447] [<ffffffffb31822a2>] pci_acpi_scan_root+0x322/0x680 [ 1.055237] [<ffffffffb2fbb6e9>] acpi_pci_root_add+0x39a/0x490 [ 1.056014] [<ffffffffb2fbd97a>] ? acpi_pnp_match+0x30/0xa6 [ 1.056756] [<ffffffffb2fb715b>] acpi_bus_attach+0xeb/0x1ef [ 1.057508] [<ffffffffb2fb71d3>] acpi_bus_attach+0x163/0x1ef [ 1.058281] [<ffffffffb2fb71d3>] acpi_bus_attach+0x163/0x1ef [ 1.059012] [<ffffffffb39ab317>] ? acpi_sleep_proc_init+0x2a/0x2a [ 1.059760] [<ffffffffb2fb72c9>] acpi_bus_scan+0x6a/0x90 [ 1.060451] [<ffffffffb39ab785>] acpi_scan_init+0x7f/0x1c2 [ 1.061156] [<ffffffffb39ab5ac>] acpi_init+0x295/0x2af [ 1.061834] [<ffffffffb2c020e8>] do_one_initcall+0xb8/0x230 [ 1.062996] [<ffffffffb39631f5>] kernel_init_freeable+0x17a/0x219 [ 1.063743] [<ffffffffb39629d4>] ? initcall_blacklist+0xb0/0xb0 [ 1.064483] [<ffffffffb32b6a30>] ? rest_init+0x80/0x80 [ 1.065163] [<ffffffffb32b6a3e>] kernel_init+0xe/0xf0 [ 1.065835] [<ffffffffb32d8658>] ret_from_fork+0x58/0x90 [ 1.066528] [<ffffffffb32b6a30>] ? rest_init+0x80/0x80 [ 1.067206] Code: 44 00 00 55 48 8b 47 08 48 89 e5 48 63 48 18 48 8b 87 40 09 00 00 48 8b 50 48 eb 0b 66 90 48 8b 50 68 48 85 d2 74 1b 48 8b 42 40 <48> 03 04 cd a0 e8 92 b3 48 01 30 48 8b 02 48 8b 40 40 48 85 c0 [ 1.072226] RIP [<ffffffffb2ce168d>] cpuacct_charge+0x2d/0x50 [ 1.072998] RSP <ffff938f7fd83e40> [ 1.073548] CR2: fffffffd49d872f0 [ 1.074087] ---[ end trace 57bdeb4fca46b444 ]--- [ 1.074721] Kernel panic - not syncing: Fatal exception in interrupt Expected results: guest can boot up successfully Additional info: guest boot up successfully with 8 e1000 nics (with io-reserve=0) [1] #!/bin/sh MACHINE=q35 SMP=4,cores=2,threads=2,sockets=1 MEM=2G GUEST_IMG=/home/test/rhel75-seabios.qcow2 IMG_FORMAT=qcow2 size=32 CLI="/usr/libexec/qemu-kvm -enable-kvm -M $MACHINE -nodefaults -smp $SMP -m $MEM -name vm1 -drive file=$GUEST_IMG,if=none,id=guest-img,format=$IMG_FORMAT,werror=stop,rerror=stop -device ide-hd,drive=guest-img,bus=ide.0,unit=0,id=os-disk,bootindex=1 -spice port=5931,disable-ticketing -vga qxl -monitor stdio -qmp tcp:0:6666,server,nowait -boot menu=on,reboot-timeout=8,strict=on -chardev file,path=/home/seabios.log,id=seabios -device isa-debugcon,chardev=seabios,iobase=0x402 -serial unix:/tmp/console,server,nowait" while [ ${i:=0} -lt ${1:-0} ] do blkDiskID=$((i)) CLI="$CLI -device pcie-root-port,bus=pcie.0,id=root.$i,slot=$i,io-reserve=0" n=$((50-$i)) CLI="$CLI -device e1000,netdev=tap$i,mac=9a:6a:6b:6c:6d:$n,bus=root.$i -netdev tap,id=tap$i" i=$((i+1)) done $CLI
seabios-1.11.1-1.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-80b606cb29
seabios-1.11.1-1.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-80b606cb29
seabios-1.11.1-1.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.