Date: Thu, 15 Jun 2017 16:08:03 +0300 From: Tobias Koch <tobias.koch@...terra.com> To: musl@...ts.openwall.com Subject: pthread_getattr_np doing loads of mremaps on ARM, MIPS under QEMU user-mode Hi, running under QEMU user mode, Ruby 2.4 (and it seems also Guile) ARM and MIPS binaries take a long time to start and eventually crash. The long startup seems to come from this loop while (mremap(p-l-PAGE_SIZE, PAGE_SIZE, 2*PAGE_SIZE, 0)==MAP_FAILED && errno==ENOMEM) l += PAGE_SIZE; being executed hundreds of times in pthread_getattr_np. Any idea what this could be about except from maybe being a QEMU bug? The subsequent crash then occurs after memory set aside by alloca is accessed. I think this may be unrelated. Tobias
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