A new update is available for Fedora Core - Fedora Core 3 Update: kernel-2.6.12-1.1381_FC3. Here the announcement:

Fedora Update Notification
FEDORA-2005-1037
2005-10-27
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Product : Fedora Core 3
Name : kernel
Version : 2.6.12
Release : 1.1381_FC3
Summary : The Linux kernel (the core of the Linux operating system)
Description :
The kernel package contains the Linux kernel (vmlinuz), the core of any
Linux operating system. The kernel handles the basic functions
of the operating system: memory allocation, process allocation, device
input and output, etc.

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Update Information:

This kernel fixes the bug that lots of users saw with
failure to mount RAID devices on startup.

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* Fri Oct 21 2005 Dave Jones <davej@redhat.com>
- Disable the stacked md patch again.


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This update can be downloaded from:
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/3/

1b3e0db4648521370efc07f4d96df33a SRPMS/kernel-2.6.12-1.1381_FC3.src.rpm
00669768cf1a7780534771d9b6b2e481 x86_64/kernel-2.6.12-1.1381_FC3.x86_64.rpm
30c4e03ddcf878d67501bf22dea6e384 x86_64/kernel-smp-2.6.12-1.1381_FC3.x86_64.rpm
023466cf2d622093dbd2c3800af3123e x86_64/debug/kernel-debuginfo-2.6.12-1.1381_FC3.x86_64.rpm
91b7ddc866738e0fed318ea8f0428564 x86_64/kernel-doc-2.6.12-1.1381_FC3.noarch.rpm
42c8fdeb05d1d30595c60441f4b5972e i386/kernel-2.6.12-1.1381_FC3.i586.rpm
eee8a652f0acadb8c721754ba2e36083 i386/kernel-smp-2.6.12-1.1381_FC3.i586.rpm
8c0198b830c128e30641e68e6f76fb20 i386/debug/kernel-debuginfo-2.6.12-1.1381_FC3.i586.rpm
dbe10342003500c86f1d0c9d408df74b i386/kernel-2.6.12-1.1381_FC3.i686.rpm
8e6c1fe7c9d4c57a53d389a35ddd9c6f i386/kernel-smp-2.6.12-1.1381_FC3.i686.rpm
1735828bc51d097d3de8c719c1b94649 i386/debug/kernel-debuginfo-2.6.12-1.1381_FC3.i686.rpm
91b7ddc866738e0fed318ea8f0428564 i386/kernel-doc-2.6.12-1.1381_FC3.noarch.rpm

This update can also be installed with the Update Agent; you can
launch the Update Agent with the 'up2date' command.