将内核配置成抢占模式，然后出现错误

smilemorning

我将Linux内核配置为抢占模式Preemptible Kernel (Low-Latency Desktop)后，网络测试出现如下错误：


root@ok335x:~# ifconfig eth0 192.168.1.223
root@ok335x:~# ping 192.168.1.13
PING 192.168.1.13 (192.168.1.13): 56 data bytes
[  199.052562] ------------[ cut here ]------------
[  199.057434] WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x2bc/0x2d4()
[  199.064983] NETDEV WATCHDOG: eth0 (cpsw): transmit queue 0 timed out
[  199.071604] Modules linked in:
[  199.074799] Backtrace:
[  199.077373] [<c0018018>] (dump_backtrace+0x0/0x110) from [<c0477220>] (dump_stack+0x18/0x1c)
[  199.086179]  r6:c05e1670 r5:000000ff r4:c0655db8 r3:00000002
[  199.092116] [<c0477208>] (dump_stack+0x0/0x1c) from [<c003fc28>] (warn_slowpath_common+0x5c/0x6c)
[  199.101382] [<c003fbcc>] (warn_slowpath_common+0x0/0x6c) from [<c003fcdc>] (warn_slowpath_fmt+0x38/0x40)
[  199.111274]  r8:c06e4c3c r7:c0677c70 r6:00000000 r5:df2e8800 r4:c0654000
[  199.118108] r3:00000009
[  199.120851] [<c003fca4>] (warn_slowpath_fmt+0x0/0x40) from [<c03dc264>] (dev_watchdog+0x2bc/0x2d4)
[  199.130198]  r3:df2e8800 r2:c05e1688

这是怎么回事？什么原因导致的？

smilemorning

希望能有大侠告诉我，问题出在哪里啊