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SubjectRe: 2.6.0-test5-mm4 boot crash
test5-mm4 crashed during RAID-1 autodetection and setup.
It got as far as:
md: created md0
md: bind<hda1>
md: bind<hdb1>
md: running: <hdb1><hda1>

After this, I usually get this (from test5-mm3 dmesg):
raid1: raid set md0 active with 2 out of 2 mirrors
md: ... autorun DONE.
VFS: Mounted root (ext2 filesystem) readonly.

Instead, I got the dump at the end of this message.
I'm using devfs and Viro's compile fix for devfs in mm4.
The root fs is on raid-1, the raid-1 gets autodetected.

The kernel has no module support, and no initrd.

Here's the dump:

Unable to handle null pointer deref at virtual address 00000000
eip c02b7d1e eip at md_probe
PREEMPT process swapper pid:1
Trace:
invalidate_inode_pages
do_md_run
printk
autorun_array
autorun_devices
mddev_put
autostart_arrays
igrab
md_ioctl
devfs_open
dentry_open
filp_open
blkdev_ioctl
sys_ioctl
md_run_setup
prepare_namespace
init
init
kernel_thread_helper
Attempted to kill init!

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