在我的 DSL 路由器中传输大量 udp 数据时发生错误。
我的环境:
pc1 ----(ethernet)--->DSLAM--(PPPoEoA)-->DSL router--(ethernet)--pc2,
pc1发送udp数据给pc2,udp数据大小:1460字节。速度:20Mbps,
cpu:mips,内存:16M
DSL路由器有eth0、wl0和ATM,它们在br0中。
要点:
1. TCP在类似测试中是ok的。
2. ppp mtu 为 1492。
3. 当 udp 数据大小小于 (1452) ppp mtu 时,没有错误。
4.禁用wl0时,UDP测试正常,没有错误。
任何想法表示赞赏!
错误信息:
sirq-net-rx/0:页面分配失败。顺序:0,模式:0x20 调用跟踪:[<80017010>][<80017010>][<8005559c>][<800685a4>][<80068948>][<8006ad00>][<8006af44>][<8006896c>] [<80164130>][<80011a40>][<80142a08>][<801429e8>][<80143db4>][<8006af44>][<80141e68>][<80165808>][<80165758>][<80164130>] [<80131d2c>][<80164130>][][<8015dd1c>][<8014adcc>][<80164130>][<80164130>][<8015df5c>][<801698a0>][<80164130>][<80164a44 >][<80164130>][<80148930>][<8014a794>][<8014a950>][<80029778>][<80033238>][<80033100>][<80043f28>][<80013898>][<80013888 >]
Mem-info:
DMA per-cpu:
CPU 0: Hot: hi: 0, btch: 1 usd:
DMA free:140kB min:368kB low:400kB high:432kB active:4712kB inactive:2884kB present:15876kB pages_scanned:0 all_unreclaimable? 没有
lowmem_reserve[]: 0 0
DMA: 1*4kB 1*8kB 0*16kB 0*32kB 0*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 140kB
自由交换: 0kB
4000 页RAM
0 页 HIGHMEM
700 保留页
1958 页共享
0 页交换缓存
CPU 0 无法在虚拟地址 00000074 处处理内核分页请求,epc == 8016582c,ra == 80165814
糟糕[#1]:
Cpu 0
$ 0:00000000 1000fc00 00000000 00000068
$ 4:80cec490 80cd5410 00000002 fffe2080
$ 8:00000056 00000055 00000800 0000000a
$12 : 00000002 00000000 8028fcf4 00000000
$16 : 00000000 807dcf80 807dcf80 00000000
$20 : 00000019 0a6e3365 000089af 00000000
$24 : 00000000 80131d2c
$28 : 80f8e000 80f8fd88 00000002 80165814
Hi : 00000056
Lo : 00000000
epc : 8016582c Tainted: P
ra : 80165814 Status: 1000fc03 KERNEL EXL IE
Cause : 00800008
BadVA : 00000074
PrId : 00029010
链接的模块:
nf_nat_tftp init_addr(00000000 - 00000000), core_addr(c00cc000 - c00cc064)
nf_nat_irc init_addr(00000000 - 00000000), core_addr(c00ca000 - c00ca184)
nf_nat_rtsp init_addr(00000000 - 00000000), core_addr(c00c8000 - c00c8884)
nf_nat_sip init_addr(00000000 - 00000000), core_addr(c00c6000 - c00c6b9c)
nf_nat_h323 init_addr(00000000 - 00000000), core_addr(c00ab000 - c00ac27c)
nf_nat_ftp init_addr(00000000 - 00000000), core_addr(c00b6000 - c00b6444)
nf_conntrack_tftp init_addr(00000000 - 00000000), core_addr(c00b4000 - c00b4200)
nf_conntrack_irc init_addr (00000000 - 00000000), core_addr(c00ae000 - c00ae590)
nf_conntrack_rtsp init_addr(00000000 - 00000000), core_addr(c0079000 - c007a140)
nf_conntrack_sip init_addr(00000000 - 00000000), core_addr(c00b0000 - c00b1930)
nf_conntrack_ftp init_addr(00000000 - 00000000), core_addr(c006b000 - c006bce0)
nf_conntrack_h323 init_addr(00000000 - 00000000), core_addr(c00b8000 - c00bc534)
nf_nat_pptp init_addr(00000000 - 00000000), core_addr(c0077000 - c00773fc)
nf_conntrack_pptp init_addr(00000000 - 00000000), core_addr(c0075000 - c0075a30)
nf_nat_proto_gre init_addr(00000000 - 00000000), core_addr(c0073000 - c0073204)
nf_conntrack_proto_gre init_addr(00000000 - 00000000), core_addr(c006e000 - c006e700)
ip_queue init_addr (00000000 - 00000000), core_addr(c0070000 - c0070fec)
iptable_mangle init_addr(00000000 - 00000000), core_addr(c0048000 - c004819c)
XT_MARK INIT_ADDR(00000000 -00000000),core_addr(C0066000 -C00660E8)
XT_Mark Init_Addr(00000000-0000000000000000000000000000000000000000000000000000来体),Core_Addr(C0064000 -C0064000 -C0064048)
IPT_LOG INT_LOG INT_LOG INIT_0000000000000000000000-000000-00000000DR. 0000000000-000000DR. 000000000000DREMET_0000000000来-000000.00.8.8.8
点大core_addr(c0062000 - c0062228)
xt_state init_addr(00000000 - 00000000), core_addr(c0055000 - c00550e8)
ipt_REDIRECT init_addr(00000000 - 00000000), core_addr(c004a000 - c004a0f4)
ipt_MASQUERADE init_addr(00000000 - 00000000), core_addr(c0053000 - c0053660)
iptable_nat init_addr (00000000 - 00000000), core_addr(c0050000 - c0050b44)
nf_nat init_addr(00000000 - 00000000), core_addr(c004c000 - c004e1cc)
nf_conntrack_ipv4 init_addr(00000000 - 00000000), core_addr(c001f000 - c00204d4)
nf_conntrack init_addr(00000000 - 00000000), core_addr(c0057000 - c005dd94)
nfnetlink init_addr(00000000 - 00000000), core_addr(c002e000 - c002e9cc)
xt_SKIPLOG init_addr(00000000 - 00000000), core_addr(c002c000 - c002c048)
xt_TCPMSS init_addr(00000000 - 00000000), core_addr(c002a000 - c002a938)
xt_tcpudp init_addr(00000000 - 00000000), core_addr(c0028000 - c0028388)
iptable_filter init_addr(00000000 - 00000000), core_addr(c0022000 - c00220fc)
ip_tables init_addr (00000000 - 00000000), core_addr(c0024000 - c0025d40)
x_tables init_addr(00000000 - 00000000), core_addr(c0008000 - c0009794)
wl(p)init_addr(00000000- 00000000),core_addr(c01a1000 -c01a1000 -c021a6fc)
bcm_enet(p)init_addr(0000000000-00000000-000000000000000000000000000000000000000000000000000000000000000000来方面),core_addr(C003C000 -C003C000
-C00440E ) )
bcmxtmcfg(P) init_addr(00000000 - 00000000), core_addr(c0031000 - c00393bc)
pktflow(P) init_addr(00000000 - 00000000), core_addr(c0015000 - c00182c0)
Process sirq-net-rx/0 (pid: 5, threadinfo=80f8e000, task=80f8dbf8)
Stack : 80f8fec8 80f8fec8 802a3af0 80000000 80164130 00000000 00000000 80131d2c
00000068 80ddcfa0 80cec490 00000002 80f8fec8 80f8fec8 802a3af0 80000000
80164130 00000000 80000000 c001f530 c00221c8 807d7740 80ccb800 fffffff4
80f8fe58 80ddcfa0 00000000 8015DD1C 80CB800 8014ACCCC 807D77A8 80DDCFA0
80164130 FFFC5923 80F8FEC8 000000000000000000000000000000000000000000000000DDCFA0 80164130 000000000000000000000000000000000000000000000000000000000000号call trace
: ][<80164130>][<8015df5c>][<801698a0>][<80164130>][<80164a44>][<80164130>][<80148930>][<8014a794>][<8014a950>][<80029778> ][< 80033238>][<80033100>][<80043f28>][<80013898>][<80013888>]
代码:1440013e 26630068 afa30020 <9062000c> 30420008 1440003b 3c028027 8e430058 10600038
内核恐慌 - 不同步:中断中的致命异常