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SubjectRe: VM : killing process ...

Hello Keith,

thanks for your patch which indeed cured the symptoms.
I now will evaluate under which circumstances such a behaviour can be
avoided. At first I compile the unix domain sockets not as a module.

Mit freundlichen Grüßen / kind regards

Frank Bernard


Frank Bernard Informationstechnik GmbH
vanity +49 700 FIREWALL (0700 FIREWALL) phone : +49 69 477169
Dipl.-Inform. Frank Bernard fax : +49 69 47885616
Wehrheimerstr. 9 email : fb@fbit.de
60389 Frankfurt www : http://www.fbit.de
Germany http://www.linuxwall.de

On Sat, 18 Dec 1999, Keith Owens wrote:

> On Fri, 17 Dec 1999 22:31:00 +0100 (CET),
> Frank Bernard <fb@fbit.de> wrote:
> >Same effect as before : "VM: killing process modprobe" (50 times),
> >then my bash script is executed, goes away and
> >"modprobe: modprobe: Can't locate module net-pf-1" (never ending messages)
> >appears. (I know, net-pf-1 is "Unix domain sockets")
>
> Sounds like modprobe is calling syslog which needs net-pf-1 which calls
> modprobe which calls syslog ... Maciej W. Rozycki found this problem
> earlier today and sent me a patch (below). I am looking for a general
> solution to the "modutils needs a service which is in a module"
> problem, in the meantime try this patch. Current modutils can be found
> in ftp://ftp.ocs.com.au/pub/modutils/v2.3.
>
> diff -u --recursive --new-file modutils-2.3.7.macro/util/logger.c modutils-2.3.7/util/logger.c
> --- modutils-2.3.7.macro/util/logger.c Wed Aug 25 06:26:49 1999
> +++ modutils-2.3.7/util/logger.c Fri Dec 10 01:37:11 1999
> @@ -130,6 +130,8 @@
> void setsyslog(const char *program)
> {
> openlog(program, LOG_CONS, LOG_DAEMON);
> +#ifdef STOREMSG
> atexit(dumpmsg);
> +#endif
> log = 1;
> }
>
>
> diff -u --recursive --new-file modutils-2.3.7.macro/insmod/modprobe.c modutils-2.3.7/insmod/modprobe.c
> --- modutils-2.3.7.macro/insmod/modprobe.c Sun Oct 17 08:47:36 1999
> +++ modutils-2.3.7/insmod/modprobe.c Fri Dec 10 03:39:21 1999
> @@ -1466,7 +1466,16 @@
> break;
>
> case 's':
> - setsyslog("modprobe");
> + /*
> + * If we are asked for net-pf-1 (aka unix) then syslogd
> + * is definitely not running, but calling syslog()
> + * would make Linux call request_module("net-pf-1")
> + * again, resulting in something like a forkbomb. So
> + * we do not enable logging.
> + * Not a very clean solution but it works.
> + */
> + if (strcmp(argv[argc - 1], "net-pf-1"))
> + setsyslog("modprobe");
> break;
>
> case 'C':
>


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