Hello Linux Users!
We are developing a single-board embedded system based around a SPARC architecture processor with 256 MB SRAM. When we cat /proc/meminfo our MemTotal is showing a missing 73 MB. When checking our dmesg, we have the following reported memory: Memory: 172848K/176868K available (3886K kernel code, 136K rwdata, 740K rodata, 14228K init, 152K bss, 4020K reserved, 0K cma-reserved, 0K highmem) Which in all accounts for 22 of the missing 73 MB, but what of the other 51 MB? Can that 51 MB be accounted for somewhere, or are we missing something in our memory tables somehow? We have also had to increase the VMalloc size, and in the SPARC architecture that means changing the pgtable_32.h macros to the following (SPARC isn't responding to setting the vmalloc kernel parameter): #define VMALLOC_START _AC(0xfd600000,UL) #define VMALLOC_END _AC(0xffc00000,UL) Here is the full meminfo report: MemTotal: 187076 kB MemFree: 98196 kB MemAvailable: 138116 kB Buffers: 0 kB Cached: 44248 kB SwapCached: 0 kB Active: 13164 kB Inactive: 39292 kB Active(anon): 8208 kB Inactive(anon): 0 kB Active(file): 4956 kB Inactive(file): 39292 kB Unevictable: 0 kB Mlocked: 0 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 187076 kB LowFree: 98196 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 8220 kB Mapped: 14800 kB Shmem: 0 kB Slab: 4736 kB SReclaimable: 964 kB SUnreclaim: 3772 kB KernelStack: 968 kB PageTables: 376 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 93536 kB Committed_AS: 106592 kB VmallocTotal: 25600 kB VmallocUsed: 0 kB VmallocChunk: 0 kB Thanks! -Travis? _______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
