On 2 July 2014 12:34, Noah O'Donoghue <[email protected]> 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 <[email protected]>
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