public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Mikael Pettersson <mikpe@csd.uu.se>
To: rusty@rustcorp.com.au
Cc: linux-kernel@vger.kernel.org
Subject: two 2.5 modules bugs
Date: Fri, 27 Dec 2002 17:16:35 +0100 (MET)	[thread overview]
Message-ID: <200212271616.RAA03356@harpo.it.uu.se> (raw)

1. With kernel 2.5.53 and module-init-tools-0.9.6, "modprobe tulip"
   fails and goes into an infinite CPU-consuming loop. The problem
   appears to be related to the dependency from tulip to crc32. If I
   manually modprobe crc32 before modprobe tulip, it works. If crc32
   isn't loaded, modprobe tulip first loads crc32 and then loops.

   module-init-tools-0.9.5 did not have this problem.

2. The implementation of old-style MODULE_PARMs with type "1-16s"
   is broken. Instead of splicing the parameter at the commas and
   storing pointers to the substrings in consecutive array elements,
   the whole string is stored in the array instead.

   Consider parport_pc.c, which contains (simplified):

   static const char *irq[16];
   MODULE_PARM(irq, "1-16s");

   "modprobe parport_pc irq=007" should store a pointer to "007" in
   irq[0], but instead (unsigned int)irq[0] == 0x00373030, the ASCII
   representation of "007" in little-endian. (Kernel 2.5.53 on x86,
   with module-init-tools-0.9.[56].)

/Mikael

             reply	other threads:[~2002-12-27 16:09 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-12-27 16:16 Mikael Pettersson [this message]
2002-12-27 23:24 ` two 2.5 modules bugs Petr Vandrovec
2002-12-28 10:37 ` Rusty Russell
2002-12-28 15:40   ` Want a random entropy source? Stephen Satchell
2002-12-28 16:00     ` John Bradford
2002-12-28 16:38       ` Dr. David Alan Gilbert
2002-12-28 16:47       ` Russell King
2002-12-28 17:15         ` John Bradford
2002-12-28 20:28       ` Folkert van Heusden
2002-12-28 20:39         ` John Bradford
2002-12-28 20:53           ` Folkert van Heusden
2002-12-28 23:20         ` Stephen Satchell
2002-12-28 23:41           ` John Bradford
2002-12-28 20:27     ` Folkert van Heusden
  -- strict thread matches above, loose matches on Subject: below --
2002-12-29 20:18 two 2.5 modules bugs Mikael Pettersson
2002-12-30  6:13 ` Rusty Russell
2002-12-30 11:39 Rusty Russell

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200212271616.RAA03356@harpo.it.uu.se \
    --to=mikpe@csd.uu.se \
    --cc=linux-kernel@vger.kernel.org \
    --cc=rusty@rustcorp.com.au \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox