重复的 vmxnet3 tx 挂起和重置

Issue

• 升级到 ESXi 6.5 后重复的 tx hang 消息。

• BUG_ON,软锁定挂起、挂起的任务以及 VMware 虚拟机的 WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0x26b/0x280() (Not tainted)

• 重复的 vmxnet3 TX 挂起，在日志中打印了以下消息：

  NETDEV WATCHDOG: eth0 (vmxnet3): transmit queue 1 timed out
  vmxnet3 0000:0b:00.0 eth0: tx hang
  vmxnet3 0000:0b:00.0 eth0: resetting
  vmxnet3 0000:0b:00.0 eth0: tx hang
  

• 驱动程序重置 NIC 过程中的内核 panic：

  kernel BUG at drivers/net/vmxnet3/vmxnet3_drv.c:756!
  RIP: 0010:[<ffffffffa0091869>]  [<ffffffffa0091869>] vmxnet3_xmit_frame+0x9e9/0xe90 [vmxnet3]
  Call Trace:
   <IRQ> 
   [<ffffffff81461934>] dev_hard_start_xmit+0x224/0x480
   [<ffffffff8147e5da>] sch_direct_xmit+0x15a/0x1c0
   [<ffffffff8147e6ab>] __qdisc_run+0x6b/0xe0
   [<ffffffff81459910>] net_tx_action+0x130/0x1c0
   [<ffffffff8107d8b1>] __do_softirq+0xc1/0x1e0
   [<ffffffff810b034a>] ? tick_program_event+0x2a/0x30
   [<ffffffff8100c30c>] call_softirq+0x1c/0x30
   [<ffffffff8100fb55>] do_softirq+0x65/0xa0
   [<ffffffff8107d765>] irq_exit+0x85/0x90
   [<ffffffff81533bca>] smp_apic_timer_interrupt+0x4a/0x60
   [<ffffffff8100bb93>] apic_timer_interrupt+0x13/0x20
   <EOI> 
  RIP  [<ffffffffa0091869>] vmxnet3_xmit_frame+0x9e9/0xe90 [vmxnet3]
  

• VMware 虚拟机上的间歇性网络连接和网络连接丢失