Dear Juan, Bitmaps are dense byte vectors. You’re asking clib_bitmap_set to create a bitmap that’s 290,984,198,272 bytes (290gb) in size. The main heap is likely 3gb, and cannot exceed 4gb unless you build an image with CLIB_VEC64 > 1. Please don’t go there.
If you need a sparse structure, try using a hash table. #6 clib_bitmap_set (value=1, i=2327873586176, ai=0x0) at /usr/include/vppinfra/bitmap.h:177 Thanks… Dave From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] On Behalf Of Juan Salmon Sent: Monday, February 6, 2017 8:09 AM To: vpp-dev@lists.fd.io Subject: [vpp-dev] memory allocation fail in clib_bitmap Hi, I want to use VPP clib_bitmap but when the "i" value is more than 32 bit, it fails to allocate memory. There is my code: uword i; clib_bitmap_set ( base_ptr->bitmap_block_map, i , 1); and the back trace report: The target endianness is set automatically (currently little endian) [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7ffdc0231700 (LWP 44436)] [New Thread 0x7ffdbfa30700 (LWP 44437)] [New Thread 0x7ffdbf22f700 (LWP 44438)] bt #0 0x00007ffff5804c37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #1 0x00007ffff5808028 in __GI_abort () at abort.c:89 #2 0x000000000059f3fe in os_panic () at /root/src/build-data/../vpp/vnet/main.c:330 #3 0x00007ffff66f6ea5 in clib_mem_alloc_aligned_at_offset (os_out_of_memory_on_failure=1, align_offset=<optimized out>, align=8, size=<optimized out>) at /root/src/build-data/../vppinfra/vppinfra/mem.h:102 #4 vec_resize_allocate_memory (v=v@entry=0x0, length_increment=36373024785, data_bytes=<optimized out>, header_bytes=<optimized out>, header_bytes@entry=0, data_align=data_align@entry=8) at /root/src/build-data/../vppinfra/vppinfra/vec.c:59 #5 0x00007ffdf53b105a in _vec_resize (data_align=8, header_bytes=0, data_bytes=<optimized out>, length_increment=<optimized out>, v=<optimized out>) at /usr/include/vppinfra/vec.h:142 #6 clib_bitmap_set (value=1, i=2327873586176, ai=0x0) at /usr/include/vppinfra/bitmap.h:177 Best Regards, Juan Salmon.
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