2.0.30 lock-up with pcmcia-eth interface.

Joerg Mertin (smurphy@stardust.bln.sub.org)
Sat, 12 Apr 1997 09:46:36 +0200 (MET DST)


Hi Folks,

First, sorry to tell you I only get this list over newsgroup
linux.dev.kernel, and so I have to send this to the klist, since
new-postings seem to not reach this group. For any reply, please snd
it to smurphy@linux.de, or to this list, as I get the groups :)

OKi. Here to my problem.

I recently upgrade the pcmcia-package toe 2.9.1 and the kernel to
2.0.30. First i thought, it was a bug in the pcmcia-package, but after
downgrading it to 2.9.0 again, it showed up exactly the same
beheaviour. Total Lock. Nothing to do, not over ethernet, serial line,
parallel line or the keyboard. However the kernel wasn't halted. It
continued working, since mostly I started a ping to a remote computer
and I got the error message, even if I couldn't do a thing:

eth0 network cable problem ? (Well, very similar ;) ).

But, the Lock came at ethernet card initalisation, since as soon as a
packet weent out, I got the first ping response, and then it locked.

I activated all the syn-flood protections in the kernel. Maybe it has
something to do with it ? I'll try it out later when I find some time
and Battery-power to recompile the kernel :)

So, it looks like the kernel is still able to do some thing, but all IO
from the outside world seems to be locked out.

Maybe you folks have a clue on this.

System & Hardware:

Siemens Nixdorf Subnotebook PCD-4NL, 486DX2-50MHz, 20MBRam, 540MB
Harddisk, 3Com 3c589 pcmcia Network card.

RedHat 4.1 Vanderbilt (Only system on it with news & mail and
everything configured in :)), APM Bios version 1.0, apmd-2.4,
pcmcia-tools 2.9.1. Standard libraries for redhat-4.1 System.

Here the .config file part for the networking:
----------------------------8<-----------------------------
#
# Networking options
#
CONFIG_FIREWALL=y
CONFIG_NET_ALIAS=y
CONFIG_INET=y
CONFIG_IP_FORWARD=y
CONFIG_IP_MULTICAST=y
CONFIG_SYN_COOKIES=y
CONFIG_RST_COOKIES=y
CONFIG_IP_FIREWALL=y
CONFIG_IP_FIREWALL_VERBOSE=y
CONFIG_IP_MASQUERADE=y
CONFIG_IP_MASQUERADE_IPAUTOFW=y
CONFIG_IP_MASQUERADE_ICMP=y
CONFIG_IP_TRANSPARENT_PROXY=y
CONFIG_IP_ALWAYS_DEFRAG=y
CONFIG_IP_ACCT=y
# CONFIG_IP_ROUTER is not set
CONFIG_NET_IPIP=m
# CONFIG_IP_MROUTE is not set
CONFIG_IP_ALIAS=y
# CONFIG_INET_PCTCP is not set
CONFIG_INET_RARP=y
# CONFIG_NO_PATH_MTU_DISCOVERY is not set
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y
CONFIG_IPX=m
CONFIG_IPX_INTERN=y
# CONFIG_ATALK is not set
# CONFIG_AX25 is not set
CONFIG_BRIDGE=y
# CONFIG_NETLINK is not set
----------------------------8<-----------------------------

Everything Works nice with 2.0.29 though.

Thanx in advance, and if I can do anything for you, just let me
know. I can activate this total lock by only activating the ethernet
card and sending out a ping, but it's not necessarly a ping that
blocks it.

Thanx in advance and happy Hacking ;)

-- 
`*** Fatal Error: Found [MS-Windows] -> Repartitioning Disk for LiNUX...'
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