==17680== Memcheck, a memory error detector
==17680== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==17680== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info
==17680== Command: ./sed/sed N;s/abcdefg.*\\n// in
==17680== 
Error relocating /usr/lib/valgrind/vgpreload_core-amd64-linux.so: __libc_freeres: symbol not found
==17680== Jump to the invalid address stated on the next line
==17680==    at 0x5A6: ???
==17680==    by 0x4059AC8: _exit (_exit.c:6)
==17680==    by 0x405CBDB: __dls3 (dynlink.c:1499)
==17680==    by 0x405C7BB: __dls2 (dynlink.c:1384)
==17680==    by 0x405A77E: ??? (in /usr/local/musl/lib/libc.so)
==17680==    by 0x2: ???
==17680==    by 0xFFF000172: ???
==17680==    by 0xFFF00017C: ???
==17680==    by 0xFFF00018E: ???
==17680==  Address 0x5a6 is not stack'd, malloc'd or (recently) free'd
==17680== 
==17680== 
==17680== Process terminating with default action of signal 11 (SIGSEGV)
==17680==  Bad permissions for mapped region at address 0x5A6
==17680==    at 0x5A6: ???
==17680==    by 0x4059AC8: _exit (_exit.c:6)
==17680==    by 0x405CBDB: __dls3 (dynlink.c:1499)
==17680==    by 0x405C7BB: __dls2 (dynlink.c:1384)
==17680==    by 0x405A77E: ??? (in /usr/local/musl/lib/libc.so)
==17680==    by 0x2: ???
==17680==    by 0xFFF000172: ???
==17680==    by 0xFFF00017C: ???
==17680==    by 0xFFF00018E: ???
==17680== 
==17680== HEAP SUMMARY:
==17680==     in use at exit: 0 bytes in 0 blocks
==17680==   total heap usage: 0 allocs, 0 frees, 0 bytes allocated
==17680== 
==17680== All heap blocks were freed -- no leaks are possible
==17680== 
==17680== For counts of detected and suppressed errors, rerun with: -v
==17680== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)