ARM is a 32-bit reduced instruction set computer (RISC) instruction set architecture (ISA) developed by ARM Holdings. It was named the Advanced RISC Machine and, before that, the Acorn RISC Machine. The ARM architecture is the most widely used 32-bit instruction set architecture in numbers produced.

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Adding networking interface to qemu-***-static

I'm chrooting ARMv7 filesystem using qemu-arm-static on my x86_64 PC. and it works fine but I would like to add networking interface to this mode. is this possible?
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63 views

mq_send : bad file descriptor

I have tried executing sample message queue programs on arm (linux) platform and mq_send() throws error number 9 (Bad file descriptor). 1) mq is enabled in kernel i.e CONFIG_POSIX_MQUEUE and ...
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47 views

Using RTC to synchronize ntpd when offline

I need a stable configuration, presumably using ntpd, to keep system clock as precise as possible. Background: I have several embedded devices (arm9) running linux (currently: 3.16.1 / debian 7.2) ...
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178 views

ssh hangs in Ubuntu MaaS heterogeneous cluster

I have the following issue when using ssh on my local network. I have setup a small cluster of Xeon machines using MAAS. I have installed Ubuntu Server 12.04 on all machines and configured local ...
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2answers
397 views

CPU Affinity on ARM processors

I am using some RaspberryPI boards for a data acquisition system. They are nice boards, with plenty of community support around them, but they are really slow. I am thinking of gradually replacing ...
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1answer
509 views

Cannot start OpenVPN on sheevaplug. Any suggestions?

I installed OpenVPN on my arm-based sheevaplug (OS is Debian 7 Wheezy, kernel 3.8.8.) but as soon as i try to start the service i receive the following error: [....] Starting virtual private network ...
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1answer
452 views

Packets do not reach FILTER chain of iptables

I have a problem I cant figure out, I am trying to access webserver on [RPI], but packets never reach iptables FILTER chain I will try to explain it a bit: GW1 has public address and doing DNAT from ...
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1answer
2k views

Any way to recover from Pacman error message — error: failed to commit transaction (conflicting files) [closed]

When trying to update an Arch install I get this error message stating that there is a file conflict. After having a full system update fail, I started to go package by package as shown below. Some ...
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2answers
204 views

I've installed “dash” but still see “bash” when I login via SSH [closed]

I've configured my Raspberry Pi to use "dash" for default shell, as instructed here. I have Dropbear for SSH. When I login via SSH, I still see the "bash" console, and not "dash". How to change ...
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1answer
243 views

ARM Debian (squeeze) USB driver with mismatch 3.3.3 kernel but /lib/modules/2.6.36

Hei guys, my sheevaplug embedded server works fine, but when I wanted to use USB, the device gets not attached to /dev/tty/USB0 lsusb shows correctly: Bus 001 Device 002: ID 067b:2303 Prolific ...
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3answers
12k views

What are the best possible ways to benchmark RAM (no-ECC) under linux / arm?

I want to test integrity and global performances of no-ECC memory chips on a custom board Are there some tools that run under linux so I can monitor system and global temperature in the same time ? ...