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Date: Thu, 15 Jun 2017 23:01:48 +0300
From: Tobias Koch <tobias.koch@...terra.com>
To: musl@...ts.openwall.com
Subject: Re: pthread_getattr_np doing loads of mremaps on ARM, MIPS
under QEMU user-mode
> This is not particularly unusual (it's the best way we could find to
> measure the initial thread's stack size), but it's possible that qemu
> user mode is botching emulation of mremap and thus resulting in a
> wrong stack size being reported. Can you send a full strace (qemu-arm
> -strace, maybe also real strace of the qemu process with the host
> strace utility) log of the crash? That will probably shed some light
> on what's happening.
attached recorded via
strace -o host-strace-qemu.log /usr/bin/qemu-arm-static -strace
/usr/bin/ruby2.4 > qemu-strace-ruby.log 2>&1
View attachment "host-strace-qemu.log" of type "text/plain" (31185 bytes)
View attachment "qemu-strace-ruby.log" of type "text/plain" (2026 bytes)
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