vagrind report of Make 3.82 segmentation fault with realloc invalid next size

[Martin d'Anjou]

Hi,

I had given up on Make 3.82 due to this error, I tried again today because
I desperately want the ONESHELL feature, and I still run into the same
problem as before.

I cannot compile the CVS HEAD, but I ran with valgrind 3.7.0 and the
partial results are pasted below. Note that valgrind exited with a
segmentation fault and exit code 139.

==26495== Memcheck, a memory error detector
==26495== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==26495== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==26495== Command: make test_sanity SEED=1 -n
==26495==
==26495== Invalid write of size 4
==26495==    at 0x8052E71: pattern_search (implicit.c:683)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x8053EF8: try_implicit_rule (implicit.c:47)
==26495==    by 0x806117A: update_file (remake.c:493)
==26495==    by 0x8061B53: update_goal_chain (remake.c:157)
==26495==    by 0x805979B: main (main.c:2282)
==26495==  Address 0x751d098 is 0 bytes after a block of size 32 alloc'd
==26495==    at 0x4AD305E: malloc (vg_replace_malloc.c:263)
==26495==    by 0x805A579: xmalloc (misc.c:374)
==26495==    by 0x8052780: pattern_search (implicit.c:223)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x8053EF8: try_implicit_rule (implicit.c:47)
==26495==    by 0x806117A: update_file (remake.c:493)
==26495==    by 0x8061B53: update_goal_chain (remake.c:157)
==26495==    by 0x805979B: main (main.c:2282)
==26495==
==26495== Invalid read of size 1
==26495==    at 0x8052E83: pattern_search (implicit.c:684)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x8053EF8: try_implicit_rule (implicit.c:47)
==26495==    by 0x806117A: update_file (remake.c:493)
==26495==    by 0x8061B53: update_goal_chain (remake.c:157)
==26495==    by 0x805979B: main (main.c:2282)
==26495==  Address 0x751d0a4 is 12 bytes after a block of size 32 alloc'd
==26495==    at 0x4AD305E: malloc (vg_replace_malloc.c:263)
==26495==    by 0x805A579: xmalloc (misc.c:374)
==26495==    by 0x8052780: pattern_search (implicit.c:223)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x8053EF8: try_implicit_rule (implicit.c:47)
==26495==    by 0x806117A: update_file (remake.c:493)
==26495==    by 0x8061B53: update_goal_chain (remake.c:157)
==26495==    by 0x805979B: main (main.c:2282)
...
==26495== Process terminating with default action of signal 11 (SIGSEGV)
==26495==  Access not within mapped region at address 0x0
==26495==    at 0x4AD3F78: strlen (mc_replace_strmem.c:390)
==26495==    by 0x8062DD1: strcache_add (strcache.c:162)
==26495==    by 0x805308A: pattern_search (implicit.c:878)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x80538D2: pattern_search (implicit.c:750)
==26495==    by 0x8053EF8: try_implicit_rule (implicit.c:47)
==26495==    by 0x806117A: update_file (remake.c:493)
==26495==    by 0x8061B53: update_goal_chain (remake.c:157)
==26495==    by 0x805979B: main (main.c:2282)
...
==26495== LEAK SUMMARY:
==26495==    definitely lost: 45 bytes in 4 blocks
==26495==    indirectly lost: 0 bytes in 0 blocks
==26495==      possibly lost: 3 bytes in 1 blocks
==26495==    still reachable: 572,776 bytes in 3,696 blocks
==26495==         suppressed: 0 bytes in 0 blocks
...

It is a bit long so I am cutting it in a few places. If you want all of it
let me know.

Anyone can help?

Martin