Hi,
I played with root on raid0 on a ppc64 pseries box.
The bootloader yaboot seems to be buggy and it corrupts the initrd.
The kernel itself tries the filesystems compiled into the kernel, of
course, that fails because root=/dev/md0 and raid0.o is not yet loaded.
All other filesystems return with error, jfs seems to oops the kernel.
Well, you are dead anyway in this stage, but ... :)
2.4.19
JFS development version: $Name: v1_0_23 $
TCP: Hash tables configured (established 131072 bind 65536)
IPv4 over IPv4 tunneling driver
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: Couldn't find valid RAM disk image starting at 0.
Freeing initrd memory: 523k freed
EXT3-fs: unable to read superblock
EXT2-fs: unable to read superblock
cramfs: wrong magic
isofs_read_super: bread failed, dev=09:00, iso_blknum=16, block=32
sh-2006: reiserfs read_super_block: bread failed (dev 09:00, block 8, size 1024)
sh-2006: reiserfs read_super_block: bread failed (dev 09:00, block 64, size 1024)
sh-2021: reiserfs_read_super: can not find reiserfs on md(9,0)
NIP: C0000000001911F4 XER: 0000000020000000 LR: C0000000001911A0 REGS:
c0000000076ff350 TRAP: 0300 Not tainted
MSR: a000000000009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
TASK = c0000000076fc000[1] 'swapper' Last syscall: 6
last math 0000000000000000
GPR00: C0000000001911A0 C0000000076FF5D0 C000000000699000 0000000000000000
GPR04: C000000000353800 0000000000000004 0000000000000000 C0000000003DE300
GPR08: C00000003FEBB680 0000000000000000 000000000000011C 0000000000000000
GPR12: 0000000000000008 C0000000076FC000 0000000000000000 0000000000000000
GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR20: 0000000000000000 0000000000000000 0000000000000000 C000000007712F00
GPR24: 0000000000000900 C00000003FEE2000 C00000003FEE4980 0000000000000000
GPR28: 0000000000000000 C00000003FEE4980 C000000000489D68 0000000000000000
smp_call_function on cpu 1: other cpus not responding (0)
kdb: Debugger re-entered on cpu 1, new reason = 1
Not executing a kdb command
No longjmp available for recovery
Cannot recover, allowing event to proceed
Entering kdb (current=0xc0000000076fc000, pid 1) on processor 1 [1]kdb>
Unknown kdb command: '
'
[1]kdb> bt
SP(esp) PC(eip) Function(args)
0xc0000000076ff5d0 0xc0000000001911f4 .chkSuper +0x98
0xc0000000076ff6a0 0xc000000000190e2c .jfs_mount +0x34
0xc0000000076ff740 0xc00000000018ca48 .jfs_read_super +0x198
0xc0000000076ff7f0 0xc0000000000adcf4 .get_sb_bdev +0x2a0
0xc0000000076ff8e0 0xc0000000000ae388 .do_kern_mount +0x1f0
0xc0000000076ff980 0xc0000000000ce77c .do_add_mount +0xf8
0xc0000000076ffa40 0xc0000000000ceee0 .do_mount +0x194
0xc0000000076ffb20 0xc0000000000cf924 .sys_mount +0x14c
0xc0000000076ffbf0 0xc00000000065f498 .mount_block_root +0x7c
0xc0000000076ffc90 0xc000000000660320 .mount_root +0xcc
0xc0000000076ffd10 0xc00000000000c8c4 .prepare_namespace +0xe4
0xc0000000076ffda0 0xc00000000000c41c .init +0x70
0xc0000000076ffe30 0xc000000000019294 .kernel_thread +0x3c
If you need more details, just holler.
Gruss Olaf
--
$ man Notes
BUGS
You need http://www.sauerstoff-laden.de/ soon...
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