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From: Ivo R. <iv...@iv...> - 2015-04-05 09:21:44
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I think r15034 (changes adding VG_(am_is_bogus_client_stack_pointer)()) causes some form of regression in stack extending. Please see attached test cases for x86/linux and amd64/linux. On Valgrind r15033 these finish successfully with: ==19090== Process terminating with default action of signal 11 (SIGSEGV) ==19090== Access not within mapped region at address 0x101 Segmentation fault (core dumped) (Which is expected behaviour because they test dumping core.) However on Valgrind r15034 these crash Valgrind with an assertion: --19128:0: aspacem Valgrind: FATAL: aspacem assertion failed: --19128:0: aspacem nsegments[segA].kind == SkAnonC --19128:0: aspacem at m_aspacemgr/aspacemgr-linux.c:2845 (vgPlain_am_extend_into_adjacent_reservation_client) --19128:0: aspacem Exiting now. The attached test cases are simply built with gcc -m32/-m64. Kind regards, I. |