Now that 2.6.26-rc1 boots on my Ultra5, I noticed that it reports having only 128MB RAM, while earlier kernels reported the correct amount: 256MB. A diff of the dmesg output from 2.6.25 and 2.6.26-rc1 shows: --- dmesg-2.6.25 2008-05-07 19:41:26.000000000 +0200 +++ dmesg-2.6.26-rc1 2008-05-07 19:41:26.000000000 +0200 @@ -1,24 +1,36 @@ PROMLIB: Sun IEEE Boot Prom 'OBP 3.25.3 2000/06/29 14:12' PROMLIB: Root node compatible: -Linux version 2.6.25 (mikpe@sparge) (gcc version 4.2.3) #1 Thu Apr 17 19:53:16 CEST 2008 +Linux version 2.6.26-rc1 (mikpe@sparge) (gcc version 4.2.3) #1 Wed May 7 17:41:33 CEST 2008 console [earlyprom0] enabled ARCH: SUN4U Ethernet address: 08:00:20:fd:ec:1f Kernel: Using 1 locked TLB entries for main kernel image. Remapping the kernel... done. -[0000000200000000-fffff80000400000] page_structs=262144 node=0 entry=0/0 -[0000000200000000-fffff80000800000] page_structs=262144 node=0 entry=1/0 -[0000000200000000-fffff80000c00000] page_structs=262144 node=0 entry=2/0 -[0000000200000000-fffff80001000000] page_structs=262144 node=0 entry=3/0 OF stdout device is: /pci@1f,0/pci@1,1/SUNW,m64B@2 -PROM: Built device tree with 46848 bytes of memory. -On node 0 totalpages: 32298 +PROM: Built device tree with 46641 bytes of memory. +Top of RAM: 0x17f46000, Total RAM: 0xff40000 +Memory hole size: 128MB +Entering add_active_range(0, 0, 16384) 0 entries of 256 used +Entering add_active_range(0, 32768, 49023) 1 entries of 256 used +Entering add_active_range(0, 49024, 49053) 2 entries of 256 used +Entering add_active_range(0, 49055, 49059) 3 entries of 256 used +[0000000200000000-fffff80000400000] page_structs=131072 node=0 entry=0/0 +[0000000200000000-fffff80000800000] page_structs=131072 node=0 entry=1/0 +Zone PFN ranges: + Normal 0 -> 49059 +Movable zone start PFN for each node +early_node_map[4] active PFN ranges + 0: 0 -> 16384 + 0: 32768 -> 49023 + 0: 49024 -> 49053 + 0: 49055 -> 49059 +On node 0 totalpages: 32672 Normal zone: 335 pages used for memmap Normal zone: 0 pages reserved - Normal zone: 31963 pages, LIFO batch:7 + Normal zone: 32337 pages, LIFO batch:7 Movable zone: 0 pages used for memmap Booting Linux... -Built 1 zonelists in Zone order, mobility grouping on. Total pages: 31963 +Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32337 Kernel command line: ro root=/dev/sda5 PID hash table entries: 1024 (order: 10, 8192 bytes) clocksource: mult[28000] shift[16] @@ -27,11 +39,11 @@ console handover: boot [earlyprom0] -> real [tty0] Dentry cache hash table entries: 32768 (order: 5, 262144 bytes) Inode-cache hash table entries: 16384 (order: 4, 131072 bytes) -Memory: 237256k available (1928k kernel code, 744k data, 144k init) [fffff80000000000,0000000017f46000] -SLUB: Genslabs=13, HWalign=32, Order=0-2, MinObjects=8, CPUs=1, Nodes=1 -Calibrating delay using timer specific routine.. 800.81 BogoMIPS (lpj=4004065) +Memory: 127016k available (1920k kernel code, 744k data, 152k init) [fffff80000000000,0000000017f46000] +SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 +Calibrating delay using timer specific routine.. 800.99 BogoMIPS (lpj=4004959) Mount-cache hash table entries: 512 -net_namespace: 280 bytes +net_namespace: 344 bytes NET: Registered protocol family 16 PCI: Probing for controllers. /pci@1f,0: SABRE PCI Bus Module This was with my 2.6.25 .config + make oldconfig. I also built 2.6.26-rc1 with arch/sparc64/defconfig + minor tweaks to suit my machine, but that one also only found 128MB RAM. dmesg logs and .configs are in <http://user.it.uu.se/~mikpe/linux/sparge/> /Mikael -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
