Hello. After merge cavium board boots fail, boot log messages are as follows. I enabled initcall_debug for debugging. [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.9.0+ (ebsong@ubi) (gcc version 4.4.1 (MontaVista Linux G++ 4.4-1302012138) ) #23 SMP PREEMPT Wed May 1 13:47:25 KST 2013 [ 0.000000] octeon_bootinfo->dram_size: 4000 [ 0.000000] Enabling tad1 error interrupt [ 0.000000] Enabling tad2 error interrupt [ 0.000000] Enabling tad3 error interrupt [ 0.000000] CVMSEG size: 2 cache lines (256 bytes) [ 0.000000] Cavium Networks SDK-2.1.0-p7 build 442 [ 0.000000] bootconsole [early0] enabled [ 0.000000] CPU revision is: 000d9101 (Cavium Octeon II) [ 0.000000] Checking for the multiply/shift bug... no. [ 0.000000] Checking for the daddiu bug... no. [ 0.000000] Determined physical RAM map: [ 0.000000] memory: 0000000006c00000 @ 0000000001100000 (usable) [ 0.000000] memory: 0000000007c00000 @ 0000000008200000 (usable) [ 0.000000] memory: 0000000011800000 @ 0000000030000000 (usable) [ 0.000000] memory: 0000000000f85740 @ 0000000000100000 (usable) [ 0.000000] Wasting 14336 bytes for tracking 256 unused pages [ 0.000000] Initrd not found or empty - disabling initrd [ 0.000000] software IO TLB [mem 0x01b8a000-0x01bca000] (0MB) mapped at [a800000001b8a000-a800000001bc9fff] [ 0.000000] Zone ranges: [ 0.000000] DMA32 [mem 0x00100000-0xefffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00100000-0x01084fff] [ 0.000000] node 0: [mem 0x01100000-0x07cfffff] [ 0.000000] node 0: [mem 0x08200000-0x0fdfffff] [ 0.000000] node 0: [mem 0x30000000-0x417fffff] [ 0.000000] Cavium Hotplug: Available coremask 0xffffff00 [ 0.000000] Primary instruction cache 37kB, virtually tagged, 37 way, 8 sets, linesize 128 bytes. [ 0.000000] Primary data cache 32kB, 32-way, 8 sets, linesize 128 bytes. [ 0.000000] PERCPU: Embedded 11 pages/cpu @a800000001beb000 s12800 r8192 d24064 u45056 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 133198 [ 0.000000] Kernel command line: root=/dev/nfs rw nfsroot=165.213.176.145:/home/ebsong/project/presmb/apc/Pkg/nfsroot/wec8500 ip=165.213.176.108:165.213.176.145:165.213.176.1:255.255.255.0::mgmt0 console=ttyS0,115200 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) [ 0.000000] Memory: 510160k/540180k available (5811k kernel code, 30020k reserved, 8933k data, 292k init, 0k highmem) [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] NR_IRQS:453 [ 0.000000] Console: colour dummy device 80x25 [ 26.701167] Calibrating delay loop (skipped) preset value.. 2400.00 BogoMIPS (lpj=12000000) [ 26.709507] pid_max: default: 32768 minimum: 301 [ 26.714162] Security Framework initialized [ 26.718218] Mount-cache hash table entries: 256 [ 26.723398] Initializing cgroup subsys devices [ 26.727669] Initializing cgroup subsys freezer [ 26.732131] Checking for the daddi bug... no. [ 26.736607] calling cnmips_cu2_setup+0x0/0xc @ 1 [ 26.741139] initcall cnmips_cu2_setup+0x0/0xc returned 0 after 0 usecs [ 26.747659] calling spawn_ksoftirqd+0x0/0x34 @ 1 I found this issue after cdbedc61c8d0122ad682815936f0d11df1fe5f57. And i found something strange. I ran the git show for this commit. As below "select GENERIC_IDLE_LOOP" is added for CONFIG_MIPS. but the latest arch/mips/Kconfig file has not this one. I have tried to find when this is gone. but i can't find. Is there any problem with this? commit cdbedc61c8d0122ad682815936f0d11df1fe5f57 Author: Thomas Gleixner Date: Thu Mar 21 22:49:52 2013 +0100 mips: Use generic idle loop Signed-off-by: Thomas Gleixner Cc: Linus Torvalds Cc: Rusty Russell Cc: Paul McKenney Cc: Peter Zijlstra Reviewed-by: Cc: Srivatsa S. Bhat Cc: Magnus Damm Cc: Ralf Baechle Link: http://lkml.kernel.org/r/20130321215234.754954871@linutronix.de Signed-off-by: Thomas Gleixner diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 51244bf..e1a3d02 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -34,6 +34,7 @@ config MIPS select HAVE_MEMBLOCK_NODE_MAP select ARCH_DISCARD_MEMBLOCK select GENERIC_SMP_IDLE_THREAD + select GENERIC_IDLE_LOOP select BUILDTIME_EXTABLE_SORT select GENERIC_CLOCKEVENTS select GENERIC_CMOS_UPDATE {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I