v2.6.24-rc3-19-g2ffbb83 fails very early in the boot procedure.
2.6.23 compiled with similar config boots fine.

System is running Debian unstable; kernel was compiled using gcc 4.1.2.

Cheers,
Frans Pop

Boot messages for 2.6.24
------------------------
Command line for kernel: 'root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel='
Selected kernel: /vmlinuz-2.6.24-rc3 from partition 2
Selected ramdisk: /initrd.img-2.6.24-rc3 from partition 2
ELF64 executable
Entry 00100000 first 00100000 n 2
Segment 0 load 00100000 size 4648960 mediaptr 0x1000
Segment 1 load 005c4000 size 689216 mediaptr 0x470000
Loading ramdisk 3078237 bytes @ 3fcff000...
Branching to kernel entry point 0x00100000.  If this is the last
message you see, you may need to switch your console.  This is
a common symptom -- search the FAQ and mailing list at parisc-linux.org

Linux version 2.6.24-rc3 (root@treebeard) (gcc version 4.1.3 20071019 (prerelease) (D7
FP[0] enabled: Rev 1 Model 16
The 64-bit Kernel has started...
console [ttyB0] enabled
Initialized PDC Console for debugging.
Determining PDC firmware type: System Map.
model 00005d10 00000491 00000000 00000002 778fe5fc 100000f0 00000008 000000b2 000000b2
vers  00000300
CPUID vers 17 rev 10 (0x0000022a)
capabilities 0x3
model 9000/785/J5600
Total Memory: 2048 MB
initrd: 7fcff000-7ffee85d
initrd: reserving 3fcff000-3ffee85d (mem_max 80000000)
LCD display at fffffff0f05d0008,fffffff0f05d0000 registered
SMP: bootstrap CPU ID is 0
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 517120
Kernel command line: root=/dev/sda5 HOME=/ console=ttyS0 TERM=vt102 palo_kernel=2/vml3
PID hash table entries: 4096 (order: 12, 32768 bytes)
Console: colour dummy device 160x64
Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
Memory: 2051840k/2097152k available (3103k kernel code, 44736k reserved, 1388k data, )
virtual kernel memory layout:
    vmalloc : 0x0000000000008000 - 0x000000003f000000   (1007 MB)
    memory  : 0x0000000040000000 - 0x00000000c0000000   (2048 MB)
      .init : 0x0000000040624000 - 0x000000004066d000   ( 292 kB)
      .data : 0x0000000040407fb0 - 0x0000000040563000   (1388 kB)
      .text : 0x0000000040100000 - 0x0000000040407fb0   (3103 kB)
<system hangs and needs power cycle>


Diff between 2.6.23 and 2.6.24 config
-------------------------------------
$ diff -u /boot/config-2.6.23 /boot/config-2.6.24-rc3 | grep "^[+-][^#]"
--- /boot/config-2.6.23 2007-11-27 08:01:51.000000000 +0000
+++ /boot/config-2.6.24-rc3     2007-11-27 08:50:10.000000000 +0000
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAIR_USER_SCHED=y
+CONFIG_BLOCK_COMPAT=y
+CONFIG_PCI_LEGACY=y
+CONFIG_INET_LRO=m
+CONFIG_NETFILTER_XT_MATCH_TIME=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_IDE_ARCH_OBSOLETE_INIT=y
+CONFIG_SCSI_SRP_ATTRS=m
+CONFIG_FIXED_MII_AMNT=1
+CONFIG_SSB_POSSIBLE=y
+CONFIG_SSB=m
+CONFIG_SSB_PCIHOST_POSSIBLE=y
+CONFIG_SSB_PCIHOST=y
+CONFIG_SSB_DRIVER_PCICORE_POSSIBLE=y
+CONFIG_SSB_DRIVER_PCICORE=y
+CONFIG_SND_AC97_POWER_SAVE_DEFAULT=0
+CONFIG_PRINT_QUOTA_WARNING=y
-CONFIG_RAMFS=y
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_INSTRUMENTATION=y
+CONFIG_ENABLE_WARN_DEPRECATED=y


Full 2.6.24 config
------------------