[BUG] [2.4.21] 8139too 'too much work at interrupt'...

Daniel Blueman
2003-10-09T10:08:33Z

eth0 stopped receiving and sending packets. Please CC me for more
information.

---

# dmesg
[snip]
8139too Fast Ethernet driver 0.9.26
eth0: SMC1211TX EZCard 10/100 (RealTek RTL8139) at 0xfffffd0009442000,
00:e0:29:1c:7c:50, IRQ 23
eth0: Setting 100mbps full-duplex based on auto-negotiated partner ability
45e1.
[snip, some time later]
eth0: Too much work at interrupt, IntrStatus=0x0010.
[eth0 not rx/txing packets]

# ethtool -i eth0
driver: 8139too
version: 0.9.26
firmware-version:
bus-info: 00:09.0

# ethtool eth0
Settings for eth0:

Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full

Supports auto-negotiation? Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 32
Transceiver: internal
Auto-negotiation: on

# lspci -s 00:09.0 -vxxx
00:09.0 Ethernet controller: Accton Technology Corporation SMC2-1211TX (rev
10)
Subsystem: Accton Technology Corporation EN-1207D Fast Ethernet
Adapter
Flags: bus master, medium devsel, latency 32, IRQ 23
I/O ports at 8400 [size=128]
Memory at 0000000009442000 (32-bit, non-prefetchable) [size=128]
00: 13 11 11 12 07 00 00 02 10 00 00 02 00 20 00 00
10: 01 84 00 00 00 20 44 09 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 13 11 11 12
30: 00 00 00 00 00 00 00 00 00 00 00 00 17 01 20 40
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

# cat /proc/interrupts
CPU0 CPU1
1: 2 0 XT-PIC keyboard
2: 0 0 XT-PIC cascade
4: 4102 0 XT-PIC serial
8: 65836187 65835236 RTC +timer
14: 5 0 XT-PIC +ide0
19: 0 32045 DP264 aic7xxx
23: 0 2225944 DP264 eth0
27: 363080 0 DP264 elan
IPI: 3238154 3303111
ERR: 0

# cat /proc/cpuinfo
cpu : Alpha
cpu model : EV67
cpu variation : 7
cpu revision : 0
cpu serial number :
system type : Tsunami
system variation : DP264
system revision : 0
system serial number : 007
cycle frequency [Hz] : 666666666
timer frequency [Hz] : 1024.00
page size [bytes] : 8192
phys. address bits : 44
max. addr. space # : 255
BogoMIPS : 1330.04
kernel unaligned acc : 0 (pc=0,va=0)
user unaligned acc : 0 (pc=0,va=0)
platform string : UP2000 666 MHz
cpus detected : 2
cpus active : 2
cpu active mask : 0000000000000003

[restarted of eth0 interface here]

# ./rtl8139-diag -mmaaavvveef
rtl8139-diag.c:v2.01 1/8/2001 Donald Becker (becker@scyld.com)
http://www.scyld.com/diag/index.html
Index #1: Found a SMC1211TX EZCard 10/100 (RealTek RTL8139) adapter at
0x8400.
RealTek chip registers at 0x8400
0x000: 1c29e000 0000507c 80000000 00000000 0008a0ba 0008a0b6 0008a0ba
0008a0ba
0x020: 94c20000 94c20600 94c20c00 94c21200 9e8d0000 0d0a0000 b308b2f8
0000807f
0x040: 60000600 0000f78e c4367d6d 00000000 000c10c6 00000000 00000080
00100000
0x060: 1100f00f 05e1782d 000145e1 00000000 00000024 000007c8 00000000
00000000.
No interrupt sources are pending.
The chip configuration is 0x10 0x0c, MII half-duplex mode.
EEPROM size test returned 6, 0x204a7 / 0x29697.
Parsing the EEPROM of a RealTek chip:
PCI IDs -- Vendor 0x1113, Device 0x1211, Subsystem 0x1113.
PCI timer settings -- minimum grant 32, maximum latency 64.
General purpose pins -- direction 0xf3 value 0x10.
Station Address 00:E0:29:1C:7C:50.
Configuration register 0/1 -- 0x2c / 0x00.
EEPROM active region checksum is 04c8.
EEPROM contents:
8129 1113 1211 1113 1211 4020 f310 e000
1c29 507c 2c10 0000 a5a5 a5a5 a5a5 a5a5
a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5
a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5
a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5
a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5
a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5
a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5 a5a5
The word-wide EEPROM checksum is 0x18da.

# ./rtl8139-diag-parse.pl /tmp/diag.txt
ID registers: 00:E0:29:1C:7C:50
Reserved (06) = 0x00
Reserved (07) = 0x00
MAR0-7: 00:00:00:80:00:00:00:00
TSD0: SIZE=186 ERTXTH=256 NCC=0 OWN TOK
TSD1: SIZE=82 ERTXTH=256 NCC=0 OWN TOK
TSD2: SIZE=134 ERTXTH=256 NCC=0 OWN TOK
TSD3: SIZE=186 ERTXTH=256 NCC=0 OWN TOK
TSAD0 = 0x94C20000
TSAD1 = 0x94C20600
TSAD2 = 0x94C20C00
TSAD3 = 0x94C21200
RBSTART = 0x9E8D0000
ERBCR = 0x0D0A
ERSR: ERGood EROVW
CR: RE TE BUFE
CAPR = 20720
CBR = 20736
IMR1: SERR FOVW PUN/LinkChg RXOVW TER TOK RER ROK
ISR1: 0
TCR: CHIP=RTL-8139 TXRR=0 MAXDMA=1024 LOOP=normal
RCR: MAXDMA=unlimited RBLEN=32K+16 RXFTH=none ERTH=none
RCR (cont): WRAP AB AM APM
TCTR = 3226309911
MPC = 0x00000000
9346CR: Config register write enable
Config0: PL1
Config1: MEMMAP IOMAP
Reserved (53) = 0x00
TimerInt = 0x00000000
MSR: TXFCE
Config3: 0
Config4: 0
Reserved (5B) = 0x00
MISR: 0
RERID = 0x10
Reserved (5F) = 0x00
TSAD: TOK3 TOK2 TOK1 TOK0 OWN3 OWN2 OWN1 OWN0
BMCR: ANE FDX
BMSR: 100baseT-HD 100baseT-HD 10baseT-FD 10baseT-HD ANC AutoNeg LinkStatus
ExtCap
ANAR: Pause TXFD TX 10FD 10 Sel0
ANLPAR: ACK Pause TXFD TX 10FD 10 Sel0
ANER: LP_NW_ABLE
DIS = 0
FCSC = 0
NWAYTR: BIT5 FLAGABD
Rx Err Count = 0
CSCR: BIT10 LD HEART_BEAT JBEN F_LINK_100
Reserved(76) = 0x0000
PHY1_PARM = 0x00000000
TW_PARM = 0x00000000

--
Daniel J Blueman

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