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[Bug libc/12019] memchr overshoots on Alpha


------- Additional Comments From eblake at redhat dot com  2010-09-14 18:30 -------
Stepping through the assembly reveals that the segfault is happening on:

memchr(page-1,0,3)

where page[-1] is '\0' and page is the start of an inaccessible page; when it
should be successfully returning page-1.


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=12019

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