Harmless? "oops" on MCA, 3c523

Raul Miller (rdm@test.legislate.com)
Fri, 4 Dec 1998 22:56:55 -0500


Short form:
eth0: strange ... timeout with CU active?!?
eth0: X0: a040 N0: a000 N1: a000 0
eth0: oops! CU has left active state. stat: a000/0240.

This happens about the time that I send the first tcp packets out on
the ethernet. Until I create a client tcp session, I can't get the
linux box to receive anything via ethernet. [This isn't new to 2.1.131,
I've been dealing with this forever it seems like.]

Long form
---------
Dmesg:
Linux version 2.1.131 (rdm@rdm) (gcc version 2.7.2.3) #2 SMP Fri Dec 4 20:01:15 EST 1998
mapped APIC to ffffe000 (002ac000)
mapped IOAPIC to ffffd000 (002ad000)
Console: colour VGA+ 80x25
Calibrating delay loop... 24.88 BogoMIPS
Memory: 30256k/32768k available (1396k kernel code, 412k reserved, 660k data, 44k init)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
VFS: Diskquotas version dquot_6.4.0 initialized
Checking 386/387 coupling... OK, FPU using exception 16 error reporting.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
CPU0: 486
SMP motherboard not detected. Using dummy APIC emulation.
Micro Channel bus detected.
Swansea University Computer Society NET3.039 for Linux 2.1
NET3: Unix domain sockets 0.16 for Linux NET3.038.
Swansea University Computer Society TCP/IP for NET3.037
IP Protocols: ICMP, UDP, TCP
IPv4 over IPv4 tunneling driver
early initialization of device tunl0 is deferred
GRE over IPv4 tunneling driver
early initialization of device gre0 is deferred
IPv6 v0.2 for NET3.037
IPv6 over IPv4 tunneling driver
early initialization of device sit0 is deferred
Swansea University Computer Society IPX 0.38 for NET3.037
IPX Portions Copyright (c) 1995 Caldera, Inc.
Initializing RT netlink socket
Starting kswapd v 1.5
parport0: PC-style at 0x3bc [SPP,PS2]
Serial driver version 4.26 with no serial options enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
lp0: using parport0 (polling).
Software Watchdog Timer: 0.05, timer margin: 60 sec
Real Time Clock Driver v1.09
Non-volatile memory driver v1.0
tpqic02: Runtime config, $Revision: 1.10 $, $Date: 1997/01/26 07:13:20 $
tpqic02: DMA buffers: 20 blocks
RAM disk driver initialized: 16 RAM disks of 4096K size
loop: registered device at major 7
Floppy drive(s): fd0 is 2.88M
FDC 0 is a post-1991 82077
IBM MCA SCSI: IBM SCSI Adapter w/Cache found in slot 1, io=0x3540, scsi id=7.
IBM MCA SCSI: Removing current logical SCSI-device mapping.
IBM MCA SCSI: Probing SCSI-devices.
IBM MCA SCSI: Mapping SCSI-devices.
IBM MCA SCSI: SCSI-access-order: IBM/ANSI.
scsi0 : IBMMCA
scsi : 1 host.
Vendor: IBM Model: 0663L12 !H Rev: s z
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Vendor: EXABYTE Model: EXB-8200 Rev: 2680
Type: Sequential-Access ANSI SCSI revision: 01 CCS
Detected scsi tape st0 at scsi0, channel 0, id 1, lun 0
Vendor: IBM Model: 0663L12 !H Rev: s z
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 2, lun 0
scsi : detected 1 SCSI tape 2 SCSI disks total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 1955886 [955 MB] [1.0 GB]
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 1962030 [958 MB] [1.0 GB]
early initialization of device teql0 is deferred
PPP: version 2.3.3 (demand dialling)
TCP compression code copyright 1989 Regents of the University of California
PPP line discipline registered.
SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256).
CSLIP: code copyright 1989 Regents of the University of California.
eth0: 3c523 adapter found in slot 8
eth0: 3Com 3c523 Rev 0x1 at 0x300
eth0: IRQ 3, internal xcvr, memory 0xd8000-0xdbfff.
eth0: hardware address 02 60 8c 8c ef bd
Partition check:
sda: sda1 sda2 sda3 sda4
sdb: sdb1
Coda Kernel/Venus communications, v4.6.0, braam@cs.cmu.edu
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 44k freed
Adding Swap: 122876k swap-space (priority -1)
diald uses obsolete (PF_INET,SOCK_PACKET)
eth0: strange ... timeout with CU active?!?
eth0: X0: a040 N0: a000 N1: a000 0
eth0: oops! CU has left active state. stat: a000/a240.
eth0: no IPv6 routers present
registered device ppp0

Config:
CONFIG_EXPERIMENTAL=y
CONFIG_M486=y
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y
CONFIG_NET=y
CONFIG_MCA=y
CONFIG_SYSVIPC=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_SYSCTL=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=y
CONFIG_BINFMT_JAVA=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_PARIDE_PARPORT=y
CONFIG_PACKET=y
CONFIG_FIREWALL=y
CONFIG_NET_ALIAS=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_TOS=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_NAT=y
CONFIG_IP_FIREWALL=y
CONFIG_IP_FIREWALL_NETLINK=y
CONFIG_NETLINK_DEV=y
CONFIG_NET_IPIP=y
CONFIG_NET_IPGRE=y
CONFIG_IP_ALIAS=y
CONFIG_SYN_COOKIES=y
CONFIG_INET_RARP=y
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y
CONFIG_IPV6=y
CONFIG_IPV6_EUI64=y
CONFIG_IPV6_NO_PB=y
CONFIG_IPX=y
CONFIG_CPU_IS_SLOW=y
CONFIG_NET_SCHED=y
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y
CONFIG_NET_SCH_CBQ=y
CONFIG_NET_SCH_CSZ=y
CONFIG_NET_SCH_PRIO=y
CONFIG_NET_SCH_RED=y
CONFIG_NET_SCH_SFQ=y
CONFIG_NET_SCH_TEQL=y
CONFIG_NET_SCH_TBF=y
CONFIG_NET_QOS=y
CONFIG_NET_ESTIMATOR=y
CONFIG_NET_CLS=y
CONFIG_NET_CLS_ROUTE=y
CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_U32=y
CONFIG_NET_CLS_RSVP=y
CONFIG_NET_CLS_RSVP6=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_IBMMCA=y
CONFIG_IBMMCA_SCSI_ORDER_STANDARD=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_ELMC=y
CONFIG_PPP=y
CONFIG_SLIP=y
CONFIG_SLIP_COMPRESSED=y
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_PRINTER=y
CONFIG_PRINTER_READBACK=y
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
CONFIG_QIC02_TAPE=y
CONFIG_QIC02_DYNCONF=y
CONFIG_WATCHDOG=y
CONFIG_SOFT_WATCHDOG=y
CONFIG_RTC=y
CONFIG_NVRAM=y
CONFIG_QUOTA=y
CONFIG_MINIX_FS=y
CONFIG_EXT2_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_UMSDOS_FS=y
CONFIG_PROC_FS=y
CONFIG_NFS_FS=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_CODA_FS=y
CONFIG_SMB_FS=y
CONFIG_NCP_FS=y
CONFIG_SYSV_FS=y
CONFIG_NLS=y
CONFIG_VGA_CONSOLE=y
CONFIG_MAGIC_SYSRQ=y

==> /proc/mca/machine <==
Model Id: 0xf8
Submodel Id: 0x28
BIOS Revision: 0x2

==> /proc/mca/pos <==
Slot 1: ff 8e f1 fc a0 ff ff ff IBM SCSI Adapter w/Cache
Slot 2: ff ff ff ff ff ff ff ff
Slot 3: 1f 0f 01 2b ff b5 ff ff
Slot 4: ff ff ff ff ff ff ff ff
Slot 5: da 8f 1d 6e fd c0 00 00
Slot 6: ff ff ff ff ff ff ff ff
Slot 7: ff ff ff ff ff ff ff ff
Slot 8: 42 60 99 04 ff ff ff ff 3Com 3c523 Etherlink/MC
Video : ff ff ff ff ff ff ff ff
SCSI : ff ff ff ff ff ff ff ff

==> /proc/mca/slot1 <==
Slot: 1
Adapter Name: IBM SCSI Adapter w/Cache
Id: 8eff
Enabled: Yes
POS: Driver Installed: No
ff 8e f1 fc a0 ff ff ff
Subsystem PUN: 7
I/O base address: 0x3540

==> /proc/mca/slot3 <==
Slot: 3
Adapter Name: Unknown
Id: 0f1f
Enabled: Yes
POS: Driver Installed: No
1f 0f 01 2b ff b5 ff ff

==> /proc/mca/slot5 <==
Slot: 5
Adapter Name: Unknown
Id: 8fda
Enabled: Yes
POS: Driver Installed: No
da 8f 1d 6e fd c0 00 00

==> /proc/mca/slot8 <==
Slot: 8
Adapter Name: 3Com 3c523 Etherlink/MC
Id: 6042
Enabled: Yes
POS: Driver Installed: No
42 60 99 04 ff ff ff ff
Revision: 0xe
IRQ: 3
IO Address: 0x300-0x308
Memory: 0xc00d8000-0xc00dbfff
Transceiver: Internal
Device: eth0
Hardware Address: 02 60 8c 8c ef bd

-- 
Raul

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