Le 29 oct. 2012 à 13:12, Andy Ruhl a écrit : > On Mon, Oct 29, 2012 at 12:41 AM, Rémi Zara <remi_zara%mac.com@localhost> > wrote: >> Hi, >> >> After some years running quite well, my Qube2 (NetBSD 5.1) started to lock >> up after a few days, with the serial console unresponsive. >> Usage is regular postgresql building and testing, which is quite processor >> and memory intensive, backup via rsync. >> I changed the power supply, but that did not solve the problem. >> >> So I upgraded to NetBSD 6.0, and the machine is now really unstable: >> lots of core dumps until the machine is unusable, tar telling that headers >> are invalid, then succeeding on the same file, >> >> then errors like this: >> sendmail: panic: myfree: corrupt or unallocated memory block >> [1] Done /bin/sh /etc/dai... | >> Done tee /var/log/dai... | >> Abort trap (core dumped) sendmail -t >> >> How do I go about diagnosing what is the problem ? >> Are there memory tests, disk tests that I could run ? >> >> Thanks for your help, I would be sad to have to decommission this little >> machine :-) >> >> Rémi Zara > > This seems very familiar to me, but I searched and couldn't find what > I was looking for. I seem to remember doing checksums on the same file > repeatedly and getting different results. > > I know there were some issues related to disconnecting the fan, and > the theory was that the fan added some stability to the power supply. > > What you are describing could be hardware instability, but if it's > really related to upgrading to version 6 then maybe not. It is > probably a good idea to take the machine apart and clean it, and > re-seat the riser card and memory if you haven't done it in a while. > Hi, The machine would lock up before upgrading to 6.0. The upgrade just made the instability so much more pronounced. I've ordered new RAM, and will clean the machine when I install it... Rémi
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