Date: Sun, 21 Apr 2013 21:34:02 +0200 From: Tom Vijlbrief <tvijlbrief@gmail.com> To: freebsd-arm@freebsd.org Subject: ARM VM issue on Raspberry Pi (was Re: C++ broken on Raspberry Pi? (Sean Eric Fagan)) Message-ID: <CAOQrpVe-pyZy8DmXjXC_jPxq8i-_rhP%2Bg4niY7VcyOQw5N_AvA@mail.gmail.com>
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Although gcc fixes all compilation issues for me, I still get random terminated processes, dmesg shows: pid 43911 (ruby18), uid 0: exited on signal 6 (core dumped) pid 49291 (ruby18), uid 0: exited on signal 6 (core dumped) pid 50469 (ruby18), uid 0: exited on signal 6 (core dumped) pid 44969 (bash), uid 1000: exited on signal 11 (core dumped) pid 73913 (bash), uid 1000: exited on signal 11 (core dumped) pid 85048 (ruby18), uid 0: exited on signal 6 (core dumped) pid 85058 (ruby18), uid 0: exited on signal 6 (core dumped) Ruby/bash are gcc compiled on the Pi, but i have also terminated sshd server processes from base, which are originally clang cross compiled on my 64bit Intel freebsd (virtual) machine. In general the current freebsd kernel is rock solid on the Pi, except for these terminated process. I'll see if things get better if i use the Pi/gcc world/kernel builds, but these native compiles will take a while. I noticed that the processes are always terminated when the Pi is low on memory, eg a compile has a 150MB VM size and 130MB RSS, on my 256MB Pi. At these moments another proces is terminated at random. In those situations the system is not thrashing and CPU utilization is close to 100%, which is good. I have a 1024 megabyte swap partion so there should be no issue. I suspect an ARM VM issue on the Pi here.
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