Does it happen all the time? I have very similar build setups and I've never seen this happen.

Can you build with debug symbols present and see if you can list some local variable contents that reveal some clues on how it ended up like this?

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** [bugs:#1383] Segmentation fault in dprintf_formatf: Lot of the curl tests are crashing with SIGSEGV.**
**Status:** open
**Created:** Wed Jun 25, 2014 07:36 AM UTC by VVPrasad
**Last Updated:** Fri Jun 27, 2014 06:33 AM UTC
**Owner:** Daniel Stenberg
Segmentation fault in dprintf_formatf: Lot of the curl tests are crashing with SIGSEGV.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 4156541232 (LWP 13301)]
0xf7d4f722 in dprintf_formatf (data=0xf7d19580, stream=0xf7c59300 <fputc>, format=0xf7d80504 "\r%3ld %s  %3ld %s  %3ld %s  %s  %s %s %s %s %s",
    ap_save=0xff9be1c8 "d") at mprintf.c:808
808     mprintf.c: No such file or directory.
        in mprintf.c
Please have a look at the stack back trace attached for more details.
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