kmod, fork errors, net-pf-5 -- 2.1.89++

Les Schaffer (godzilla@netmeg.net)
Thu, 23 Jul 1998 09:38:29 -0400 (EDT)


I have had problems upgrading dev. kernels since some time after
2.1.89, due to a problem associated with kmod.

Basically, after i boot a new kernel, after a while (to be defined
shortly), i start getting kmod: fork errors, and the system becomes
unuseable. in the next to latest try (2.1.109), the X display started
getting hosed (hard to describe, looks like sync pulses out of whack,
causing 'mixing' of scan lines).

In the latest test (2.1.110) the X display didnt get hosed, but the
fork errors remained.

Here is what happens:

i boot up, everything is fine, apps work, etc

i start a PPP session (i compiled PPP into kenel rather than module,
thinking that would solve kmod errors :-(

things work okay for a while, i download email, etc.

then i start netscape up, it comes up fine, but then i get the fork
errors

i modified kmod.c to show which module was called at the time; here is
from klog:

...
[boot]
Jul 22 09:57:41 localhost kernel: Linux version 2.1.110 (root@gustav)
... (gcc version 2.7.2.3.f.1) #1 Tue Jul 21 11:06:50 EDT 1998
Jul 22 09:57:41 localhost kernel: Memory: 63468k/65536k available
... (700k kernel code, 392k reserved, 948k data, 28k init)
Jul 22 09:57:41 localhost kernel: Adding Swap: 62492k swap-space
... (priority -1)

[zzzzzzzzzzzzz]

Jul 22 10:04:18 localhost kernel: registered device ppp0
Jul 22 10:05:05 localhost kernel: PPP Deflate Compression module registered

[okay, PPP registered, ppp_deflate.o inserted]

[do some email, etc, no problems]

[start netscape]
Jul 22 10:20:51 localhost kernel: kmod: fork failed (module: net-pf-5), errno 11
Jul 22 10:21:32 localhost kernel: kmod: fork failed (module: net-pf-5), errno 11
Jul 22 10:21:32 localhost kernel: kmod: fork failed (module: net-pf-5), errno 11

[followed by lots of fork errors from various processes]
[sayonara]
...

now first off, why is net-pf-5 (appletalk) even getting called?
second, i have in conf.modules:

## Network stuff
alias net-pf-1 unix
alias net-pf-2 ipv4
...
alias net-pf-5 off # forget appletalk

yet kmod still gives a fork error.

so my question is, what gives with kmod?????? all other modules seem
to work fine. and kerneld has worked flawlessly forever...

all other modules working fine:
(gustav)~/: lsmod
Module Size Used by
ppp_deflate 38952 0 (autoclean)
serial 16568 1 (autoclean)
aha152x 25072 1 (autoclean)
sd_mod 15440 1 (autoclean)
scsi_mod 52892 2 (autoclean) [aha152x sd_mod]
unix 9548 32 (autoclean)
vfat 13572 4 (autoclean)
fat 24016 4 (autoclean) [vfat]

-- 
____ Les Schaffer godzilla@netmeg.net ___| --->> Engineering R&D <<---
Theoretical & Applied Mechanics          |  Designspring, Inc. 
Center for Radiophysics & Space Research |  Westport, CT USA
Cornell Univ.  schaffer@tam.cornell.edu  |  les@designspring.com

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html