On Tue, October 24, 2006 16:06, Ralf Baechle wrote: > On Tue, Oct 24, 2006 at 03:53:56PM +0200, Karl-Johan Karlsson wrote: >> This is still on the Gentoo 2.6.17.10 kernel, by the way (which is a >> mips-git snapshot from 2006-06-18 plus extra patches from e.g. >> <URL:http://ftp.du.se/pub/os/gentoo/distfiles/mips-sources-generic_patches-1.25.tar.bz2>). >> I tried a git snapshot from earlier today, but the only thing that >> kernel >> did was print the NUMA-link topology and then hang. > > To use the linux-mips.org git kernel you also need my IP27 patchset > available from /pub/linux/mips/people/ralf/ip27/ on ftp.linux-mips.org. That at least made it boot. Problems: 1. System overhead is still there, still 20-30% per CPU when building a kernel with "make -j4" with 4 CPU:s enabled. 2. Timekeeping is broken. The clock in /proc/driver/rtc seems correct, but the system clock advances at about 1/16 of real time. # zcat /proc/config.gz | grep HZ | grep -v ^# CONFIG_HZ_250=y CONFIG_SYS_SUPPORTS_ARBIT_HZ=y CONFIG_HZ=250 # zcat /proc/config.gz | grep RTC | grep -v ^# CONFIG_RTC=y CONFIG_SGI_IP27_RTC=y 3. When booting, the kernel started, did a bit of initialization, restarted, and did everything all over again, this time going all the way. Loading dksc(0,1,8)/vmlinux... Reading 3659336 bytes... OK. Entering kernel. [17179569.184000] Linux version 2.6.19-rc3 (root@viggen) (gcc version 4.1.1 (Gentoo 4.1.1)) #2 SMP Tue Oct 24 16:49:51 CEST 2006 [17179569.184000] ARCH: SGI-IP27 [17179569.184000] PROMLIB: ARC firmware Version 64 Revision 0 [17179569.184000] Discovered 8 cpus on 4 nodes [17179569.184000] ************** Topology ******************** [17179569.184000] 00 01 02 03 [17179569.184000] 00 0 1 2 2 [17179569.184000] 01 1 0 2 2 [17179569.184000] 02 2 2 0 1 [17179569.184000] 03 2 2 1 0 [17179569.184000] Router 0: 1 0 r [17179569.184000] Router 1: 3 2 r [17179569.184000] CPU revision is: 00000e23 [17179569.184000] FPU revision is: 00000900 [17179569.184000] IP27: Running on node 0. [17179569.184000] Node 0 has a primary CPU, CPU is running. [17179569.184000] Node 0 has a secondary CPU, CPU is running. [17179569.184000] Machine is in M mode. [17179569.184000] Cpu 0, Nasid 0x0: partnum 0x0 is is xbow [17179569.184000] Cpu 0, Nasid 0x0, widget 0x8 (partnum 0xc002) is a bridge [17179569.184000] Bridge SSRAM size 1kB [17179569.184000] b_even_resp: 0000ba98 [17179569.184000] b_odd_resp: 0000ba98 [17179569.184000] Cpu 0, Nasid 0x0, widget 0xe (partnum 0xc002) is a bridge [17179569.184000] Bridge SSRAM size 1kB [17179569.184000] b_even_resp: 0000ba98 [17179569.184000] b_odd_resp: 0000ba98 [17179569.184000] CPU 0 clock is 300MHz. [17179569.184000] Determined physical RAM map: [17179569.184000] REPLICATION: ON nasid 0, ktext from nasid 0, kdata from nasid 0 [17179569.184000] REPLICATION: ON nasid 1, ktext from nasid 0, kdata from nasid 0 [17179569.184000] REPLICATION: ON nasid 2, ktext from nasid 0, kdata from nasid 0 [17179569.184000] REPLICATION: ON nasid 3, ktext from nasid 0, kdata from nasid 0 [17179569.184000] Built 4 zonelists. Total pages: 1551360 [17179569.184000] Kernel command line: root=/dev/md2 append console=ttyS0 [17179569.184000] Primary instruction cache 32kB, physically tagged, 2-way, linesize 64 bytes. [17179569.184000] Primary data cache 32kB, 2-way, linesize 32 bytes. [17179569.184000] Unified secondary cache 8192kB 2-way, linesize 128 bytes. [17179569.184000] Virtual address space probed at 44 bits [17179569.184000] Physical address space probed at 40 bits [17179569.184000] Synthesized TLB refill handler (41 instructions). [17179569.184000] Synthesized TLB load handler fastpath (55 instructions). [17179569.184000] Synthesized TLB store handler fastpath (55 instructions). [17179569.184000] Synthesized TLB modify handler fastpath (54 instructions). [17179569.184000] PID hash table entries: 4096 (order: 12, 32768 bytes) [17179569.184000] Using 1.250 MHz high precision timer. [17179569.184000] Linux version 2.6.19-rc3 (root@viggen) (gcc version 4.1.1 (Gentoo 4.1.1)) #2 SMP Tue Oct 24 16:49:51 CEST 2006 [17179569.184000] ARCH: SGI-IP27 [17179569.184000] PROMLIB: ARC firmware Version 64 Revision 0 [17179569.184000] Discovered 8 cpus on 4 nodes [17179569.184000] ************** Topology ******************** [17179569.184000] 00 01 02 03 [17179569.184000] 00 0 1 2 2 [17179569.184000] 01 1 0 2 2 [17179569.184000] 02 2 2 0 1 [17179569.184000] 03 2 2 1 0 [17179569.184000] Router 0: 1 0 r [17179569.184000] Router 1: 3 2 r [17179569.184000] CPU revision is: 00000e23 [17179569.184000] FPU revision is: 00000900 [17179569.184000] IP27: Running on node 0. [17179569.184000] Node 0 has a primary CPU, CPU is running. [17179569.184000] Node 0 has a secondary CPU, CPU is running. [17179569.184000] Machine is in M mode. [17179569.184000] Cpu 0, Nasid 0x0: partnum 0x0 is is xbow [17179569.184000] Cpu 0, Nasid 0x0, widget 0x8 (partnum 0xc002) is a bridge [17179569.184000] Bridge SSRAM size 1kB [17179569.184000] b_even_resp: 0000ba98 [17179569.184000] b_odd_resp: 0000ba98 [17179569.184000] Cpu 0, Nasid 0x0, widget 0xe (partnum 0xc002) is a bridge [17179569.184000] Bridge SSRAM size 1kB [17179569.184000] b_even_resp: 0000ba98 [17179569.184000] b_odd_resp: 0000ba98 [17179569.184000] CPU 0 clock is 300MHz. [17179569.184000] Determined physical RAM map: [17179569.184000] REPLICATION: ON nasid 0, ktext from nasid 0, kdata from nasid 0 [17179569.184000] REPLICATION: ON nasid 1, ktext from nasid 0, kdata from nasid 0 [17179569.184000] REPLICATION: ON nasid 2, ktext from nasid 0, kdata from nasid 0 [17179569.184000] REPLICATION: ON nasid 3, ktext from nasid 0, kdata from nasid 0 [17179569.184000] Built 4 zonelists. Total pages: 1551360 [17179569.184000] Kernel command line: root=/dev/md2 append console=ttyS0 [17179569.184000] Primary instruction cache 32kB, physically tagged, 2-way, linesize 64 bytes. [17179569.184000] Primary data cache 32kB, 2-way, linesize 32 bytes. [17179569.184000] Unified secondary cache 8192kB 2-way, linesize 128 bytes. [17179569.184000] Virtual address space probed at 44 bits [17179569.184000] Physical address space probed at 40 bits [17179569.184000] Synthesized TLB refill handler (41 instructions). [17179569.184000] Synthesized TLB load handler fastpath (55 instructions). [17179569.184000] Synthesized TLB store handler fastpath (55 instructions). [17179569.184000] Synthesized TLB modify handler fastpath (54 instructions). [17179569.184000] PID hash table entries: 4096 (order: 12, 32768 bytes) [17179569.184000] Using 1.250 MHz high precision timer. [17179569.260000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes) [17179569.332000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) [17179571.216000] Memory: 4091192k/4194304k available (2492k kernel code, 103112k reserved, 850k data, 232k init, 0k highmem) [...] # zcat /proc/config.gz | grep -v ^# | grep . CONFIG_MIPS=y CONFIG_SGI_IP27=y CONFIG_SGI_SN_M_MODE=y CONFIG_EARLY_PRINTK=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_HWEIGHT=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_GENERIC_TIME=y CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y CONFIG_ARC=y CONFIG_DMA_IP27=y CONFIG_CPU_BIG_ENDIAN=y CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y CONFIG_MIPS_L1_CACHE_SHIFT=7 CONFIG_ARC64=y CONFIG_BOOT_ELF64=y CONFIG_CPU_R10000=y CONFIG_SYS_HAS_CPU_R10000=y CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y CONFIG_64BIT=y CONFIG_PAGE_SIZE_4KB=y CONFIG_CPU_HAS_PREFETCH=y CONFIG_MIPS_MT_DISABLED=y CONFIG_CPU_HAS_LLSC=y CONFIG_CPU_HAS_SYNC=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y CONFIG_IRQ_PER_CPU=y CONFIG_CPU_SUPPORTS_HIGHMEM=y CONFIG_ARCH_DISCONTIGMEM_ENABLE=y CONFIG_NUMA=y CONFIG_SYS_SUPPORTS_NUMA=y CONFIG_NODES_SHIFT=6 CONFIG_SELECT_MEMORY_MODEL=y CONFIG_DISCONTIGMEM_MANUAL=y CONFIG_DISCONTIGMEM=y CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_NEED_MULTIPLE_NODES=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_MIGRATION=y CONFIG_RESOURCES_64BIT=y CONFIG_SMP=y CONFIG_SYS_SUPPORTS_SMP=y CONFIG_NR_CPUS=4 CONFIG_HZ_250=y CONFIG_SYS_SUPPORTS_ARBIT_HZ=y CONFIG_HZ=250 CONFIG_PREEMPT_NONE=y CONFIG_LOCKDEP_SUPPORT=y CONFIG_STACKTRACE_SUPPORT=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" CONFIG_EXPERIMENTAL=y CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32 CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_CPUSETS=y CONFIG_INITRAMFS_SOURCE="" CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_SYSCTL=y CONFIG_EMBEDDED=y CONFIG_KALLSYMS=y CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_SLAB=y CONFIG_VM_EVENT_COUNTERS=y CONFIG_RT_MUTEXES=y CONFIG_BASE_SMALL=0 CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_KMOD=y CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y CONFIG_IOSCHED_NOOP=y CONFIG_IOSCHED_AS=y CONFIG_DEFAULT_AS=y CONFIG_DEFAULT_IOSCHED="anticipatory" CONFIG_HW_HAS_PCI=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y CONFIG_MMU=y CONFIG_BINFMT_ELF=y CONFIG_BUILD_ELF64=y CONFIG_MIPS32_COMPAT=y CONFIG_COMPAT=y CONFIG_MIPS32_O32=y CONFIG_BINFMT_ELF32=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_PACKET_MMAP=y CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_FIB_HASH=y CONFIG_SYN_COOKIES=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y CONFIG_TCP_CONG_CUBIC=y CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_BLK_DEV_LOOP=y CONFIG_RAID_ATTRS=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SR=y CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_QLOGIC_1280=y CONFIG_MD=y CONFIG_BLK_DEV_MD=y CONFIG_MD_RAID1=y CONFIG_NETDEVICES=y CONFIG_PHYLIB=y CONFIG_MARVELL_PHY=y CONFIG_DAVICOM_PHY=y CONFIG_QSEMI_PHY=y CONFIG_LXT_PHY=y CONFIG_CICADA_PHY=y CONFIG_VITESSE_PHY=y CONFIG_SMSC_PHY=y CONFIG_NET_ETHERNET=y CONFIG_MII=y CONFIG_SGI_IOC3_ETH=y CONFIG_SERIO=y CONFIG_SERIO_SERPORT=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_PCI=y CONFIG_SERIAL_8250_NR_UARTS=4 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 CONFIG_SERIAL_8250_EXTENDED=y CONFIG_SERIAL_8250_MANY_PORTS=y CONFIG_SERIAL_8250_SHARE_IRQ=y CONFIG_SERIAL_CORE=y CONFIG_SERIAL_CORE_CONSOLE=y CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 CONFIG_HW_RANDOM=y CONFIG_RTC=y CONFIG_SGI_IP27_RTC=y CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y CONFIG_USB_ARCH_HAS_EHCI=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y CONFIG_EXT3_FS=y CONFIG_EXT3_FS_XATTR=y CONFIG_EXT3_FS_POSIX_ACL=y CONFIG_EXT3_FS_SECURITY=y CONFIG_JBD=y CONFIG_FS_MBCACHE=y CONFIG_FS_POSIX_ACL=y CONFIG_INOTIFY=y CONFIG_INOTIFY_USER=y CONFIG_AUTOFS4_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_PROC_SYSCTL=y CONFIG_SYSFS=y CONFIG_TMPFS=y CONFIG_RAMFS=y CONFIG_NFS_FS=y CONFIG_NFS_V3=y CONFIG_LOCKD=y CONFIG_LOCKD_V4=y CONFIG_NFS_COMMON=y CONFIG_SUNRPC=y CONFIG_PARTITION_ADVANCED=y CONFIG_MSDOS_PARTITION=y CONFIG_SGI_PARTITION=y CONFIG_NLS=y CONFIG_NLS_DEFAULT="iso8859-1" CONFIG_NLS_ASCII=y CONFIG_NLS_ISO8859_1=y CONFIG_NLS_ISO8859_15=y CONFIG_NLS_UTF8=y CONFIG_PROFILING=y CONFIG_OPROFILE=y CONFIG_TRACE_IRQFLAGS_SUPPORT=y CONFIG_PRINTK_TIME=y CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_KERNEL=y CONFIG_LOG_BUF_SHIFT=17 CONFIG_DEBUG_INFO=y CONFIG_CMDLINE="" CONFIG_CRC32=y CONFIG_PLIST=y -- Karl-Johan Karlsson
