vmware 10 e1000e e1000e_cyclecounter_read 挂机解法

http://ehc.ac/p/e1000/mailman/message/34100875/
In the e1000e_cyclecounter_read function, if incvalue is 0, causes a divide error.Need to add a check?

                incvalue = er32(TIMINCA) & E1000_TIMINCA_INCVALUE_MASK;
                //2015-05-11.fix by kendo
                if(incvalue){
                        for (i = 0; i < E1000_MAX_82574_SYSTIM_REREADS; i++) {
                                /* latch SYSTIMH on read of SYSTIML */
                                systim_next = (cycle_t)er32(SYSTIML);
                                systim_next |= (cycle_t)er32(SYSTIMH) << 32;

                                time_delta = systim_next - systim;
                                temp = time_delta;

                                rem = do_div(temp, incvalue);

                                systim = systim_next;

                                if ((time_delta < E1000_82574_SYSTIM_EPSILON) &&
                                (rem == 0))
                                        break;
                        }
                }

[    7.317997] e1000e: Intel(R) PRO/1000 Network Driver - 3.1.0.2-NAPI
[    7.317998] e1000e: Copyright(c) 1999 - 2014 Intel Corporation.
[    7.318019] e1000e 0000:0b:00.0: Disabling ASPM L0s L1
[    7.318078] e1000e 0000:0b:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[    7.318139] e1000e 0000:0b:00.0: setting latency timer to 64
[    7.318514] e1000e 0000:0b:00.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[    7.318925] e1000e 0000:0b:00.0: irq 72 for MSI/MSI-X
[    7.318960] e1000e 0000:0b:00.0: irq 73 for MSI/MSI-X
[    7.318992] e1000e 0000:0b:00.0: irq 74 for MSI/MSI-X
[    7.443778] divide error: 0000 [#1] SMP
[    7.446797] CPU 1
[    7.447938] Modules linked in: e1000e(O+) r8169(O) r8168(O) r8101(O)
[    7.451903]
[    7.452731] Pid: 115, comm: modprobe Tainted: G           O 3.2.28 #1159 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform
[    7.459539] RIP: 0010:[<ffffffffa006a4b6>]  [<ffffffffa006a4b6>] e1000e_cyclecounter_read+0xe6/0x100 [e1000e]
[    7.464911] RSP: 0018:ffff88001de5dc18  EFLAGS: 00010246
[    7.467793] RAX: 0000000000000000 RBX: ffff88001df97528 RCX: 0000000000000000
[    7.471605] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000032
[    7.475386] RBP: ffff88001de5dc28 R08: 0000000000000000 R09: 00000007ffffffff
[    7.479164] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[    7.482481] R13: ffff88001df94b10 R14: 0000000001a00000 R15: 0000000000000000
[    7.485792] FS:  000000000237c8a0(0063) GS:ffff88001fd00000(0000) knlGS:0000000000000000
[    7.489448] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[    7.492144] CR2: 00007f87700c200f CR3: 000000001deeb000 CR4: 00000000000006e0
[    7.495437] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    7.498774] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[    7.502052] Process modprobe (pid: 115, threadinfo ffff88001de5c000, task ffff88001e160000)
[    7.506290] Stack:
[    7.507231]  ffff88001df97540 13dd22929d79ceb8 ffff88001de5dc48 ffffffff8107fc8e
[    7.510072]  ffff88001df94600 ffff88001df94b10 ffff88001de5dc88 ffffffffa0070775
[    7.512272]  ffff88001de5dc88 ffff88001df94600 ffff88001df94b10 0000000000008000
[    7.514431] Call Trace:
[    7.515137]  [<ffffffff8107fc8e>] timecounter_init+0x1e/0x30
[    7.516749]  [<ffffffffa0070775>] e1000e_config_hwtstamp+0x1b5/0x430 [e1000e]
[    7.518709]  [<ffffffffa0074375>] e1000e_reset+0x235/0x7a0 [e1000e]
[    7.520435]  [<ffffffffa008d6b6>] e1000_probe+0xa4a/0xc7a [e1000e]
[    7.522148]  [<ffffffff812f8415>] pci_device_probe+0x75/0xa0
[    7.523708]  [<ffffffff813d282a>] ? driver_sysfs_add+0x7a/0xb0
[    7.525482]  [<ffffffff813d2a43>] driver_probe_device+0x73/0x190
[    7.527096]  [<ffffffff813d2bfb>] __driver_attach+0x9b/0xa0
[    7.528654]  [<ffffffff813d2b60>] ? driver_probe_device+0x190/0x190
[    7.530571]  [<ffffffff813d2b60>] ? driver_probe_device+0x190/0x190
[    7.532288]  [<ffffffff813d1ab4>] bus_for_each_dev+0x54/0x90
[    7.533875]  [<ffffffff813d2719>] driver_attach+0x19/0x20
[    7.535322]  [<ffffffff813d23b0>] bus_add_driver+0x1a0/0x270
[    7.536876]  [<ffffffffa009b000>] ? 0xffffffffa009afff
[    7.538292]  [<ffffffff813d2f01>] driver_register+0x71/0x140
[    7.540383]  [<ffffffff8180769a>] ? printk+0x3c/0x3e
[    7.542099]  [<ffffffffa009b000>] ? 0xffffffffa009afff
[    7.543523]  [<ffffffff812f81a0>] __pci_register_driver+0x50/0xd0
[    7.545925]  [<ffffffffa009b041>] e1000_init_module+0x41/0x43 [e1000e]
[    7.548484]  [<ffffffff810001cd>] do_one_initcall+0x3d/0x170
[    7.550440]  [<ffffffff810900dc>] sys_init_module+0x8c/0x200
[    7.552130]  [<ffffffff81816cbb>] system_call_fastpath+0x16/0x1b
[    7.553789] Code: ff 8b 80 00 b6 00 00 89 c0 48 8b 93 f0 d5 ff ff 8b 8a 04 b6 00 00 48 c1 e1 20 31 d2 48 09 c1 48 89 ce 4c 29 e6 49 89 cc 48 89 f0 <49> f7 f0 48 85 d2 75 c2 4c 39 ce 77 bd eb 81 66 66 2e 0f 1f 84
[    7.561457] RIP  [<ffffffffa006a4b6>] e1000e_cyclecounter_read+0xe6/0x100 [e1000e]
[    7.563645]  RSP <ffff88001de5dc18>
[    7.564652] ---[ end trace 2928cfb3f2cf8a22 ]---