On 2 July 2014 12:34, Noah O'Donoghue <noah.odonoghue@gmail.com> wrote:
I tend to think faulty ram is going to become obvious and not hide beneath the surface, and result in symptoms like the kernel panics that Russell experienced.
I have seen at least one computer where memory errors were resulting in silent corruption of files. This going to be the new file server, but fortunately I noticed random seg faults occurring before deploying. Didn't get any kernel panics. In fact I already had Samba up and running, and it seemed fine. Didn't initially realize files were silently being corrupted until later on in the debugging process (from memory). This was 2007.
From my email, sent internally. I can't remember why I was trying to compile ssh at the time, suspect I may not have noticed the problem otherwise. After this I convinced management to purchase a new computer for the file server.
=== cut === root@apple2:~# aptitude install dpkg-dev Reading package lists... Done Segmentation faulty tree... 50% root@apple2:~# mv /var/cache/apt/*.bin /tmp/ root@apple2:~# aptitude install dpkg-dev Reading package lists... Done Segmentation faulty tree... 50% root@apple2:~# mv /var/cache/apt/*.bin /tmp/ root@apple2:~# mv /var/cache/apt/*.bin /tmp/ mv: cannot stat `/var/cache/apt/*.bin': No such file or directory root@apple2:~# aptitude install dpkg-dev Reading package lists... Done Building dependency tree... Done Reading extended state information Initializing package states... Done Building tag database... Done The following packages have been kept back: linux-image-powerpc linux-restricted-modules-powerpc 0 packages upgraded, 0 newly installed, 0 to remove and 2 not upgraded. Need to get 0B of archives. After unpacking 0B will be used. Writing extended state information... Done /bin/sh: line 1: 10560 Segmentation fault /usr/sbin/dpkg-preconfigure --apt I also get random errors in the initial stages of trying to build a package: dpkg-source: building openssh using existing openssh_4.2p1.orig.tar.gz dpkg-source: building openssh in openssh_4.2p1-7ubuntu3.1.bam.1.diff.gz dpkg-source: internal error: unknown line from diff -u on configure: `' ----- dpkg-source: building openssh using existing openssh_4.2p1.orig.tar.gz dpkg-source: building openssh in openssh_4.2p1-7ubuntu3.1.bam.1.diff.gz /usr/bin/dpkg-buildpackage: line 173: 10917 Segmentation fault "$@" ---- po2debconf debian/openssh-server.templates.master > debian/openssh-server.templates /bin/sh: line 1: 11529 Segmentation fault po2debconf debian/openssh-server.templates.master >debian/openssh-server.templates make: *** [clean] Error 139 ---- po2debconf debian/openssh-server.templates.master > debian/openssh-server.templates execute_command: bad command type: 1073741828 Aborting.../bin/sh: line 1: 11939 Aborted po2debconf debian/openssh-server.templates.master >debian/openssh-server.templates make: *** [clean] Error 134 I get a different error every time! -- Brian May <brian@microcomaustralia.com.au>