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Subjectkernel 2.6.0-test9 does not boot
From
Date
Hi,

Kernel 2.6.0-test9 was compiled as following

make allmodconfig
make bzImage
make modules

Attempt at booting with this kernel resulted in following message
and machine freeze.

-------------------------------------------------------------------
ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=xx
pnp: the driver 'ide' has been registered
Using anticipatory io scheduler
hda: 8032MB, CHS=1024/255/63
devfs_mk_dir: invalid argument. <6> hda:
-------------------------------------------------------------------

Kernel was booted with
foll-------------------------------------------------------------------
owing commandline in grub

kernel /boot/vmlinuz-2.6.0-test9 ro root=/dev/hda1 debug

The actual hard disk parameters as reported by kernel 2.4.20 are

-------------------------------------------------------------------
hda: WDC WD200EB-11BHF0, ATA DISK drive
blk: queue c03c9f40, I/O limit 4095Mb (mask 0xffffffff)
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: host protected area => 1
hda: 39102336 sectors (20020 MB) w/2048KiB Cache, CHS=2434/255/63,
UDMA(100)
-------------------------------------------------------------------

After manual tracing the kernel source, found following call tree

idedisk_attach (drivers/ide/ide-disk.c:1840)
add_disk (drivers/genhd/genhd.c:193)
register_disk (fs/partitions/check.c:335)
devfs_add_partitioned (fs/partitions/devfs.c:80)
devfs_mk_dir()

printk revealed that devfs_mk_dir() is getting called with a
0-byte string. What is going wrong?


Amitay.
--
I have always wished that my computer would be as easy to use
as my telephone. My wish has come true. I no longer know how
to use my telephone. - Bjarne Stroustrup

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