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
next 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
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