I am a newbie here.
I compiled my first UML
When booting it using root_fs.md-8.2-server.pristine.20020324, I got

  Kernel panic: write of switch_pipe failed, err = 0

My host is Mandrake 10.2 with Linux kernel 2.6.11.
My gcc is 3.4.3

I saw other people posted similar errors, but didn't see a solution for
Could someone please show me what I did wrong?


Boot log is attached:

Checking for the skas3 patch in the host...not found
Checking for /proc/mm...not found
Linux version (root@acer) (gcc version 3.4.3 (Mandrakelinux 10.2 3.4.3-7mdk)) #3 Wed Jul 20 14:24:05 MDT 2005

Built 1 zonelists
Kernel command line: ubd0=root_fs.md-8.2-server.pristine.20020324 root=98:0
PID hash table entries: 16 (order 4: 128 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 29224k available
Calibrating delay loop... 652.08 BogoMIPS
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Checking for host processor cmov support...Yes
Checking for host processor xmm support...No
Checking that ptrace can change system call numbers...OK
Checking that host ptys support output SIGIO...Yes
Checking that host ptys support SIGIO on close...No, enabling workaround
Checking for /dev/anon on the host...Not available (open failed with errno 2)
NET: Registered protocol family 16
audit: initializing netlink socket (disabled)
audit(0.270:0): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
RAMDISK driver initialized: 16 RAM disks of 32000K size 1024 blocksize
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
NET: Registered protocol family 1
Initializing stdio console driver
Kernel panic: write of switch_pipe failed, err = 0



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