Hi Joe, On Wed Feb 8 2012 11:27, Joe Gidi wrote: > On Wed, February 8, 2012 3:25 am, Stuart Henderson wrote: > > On 2012-02-07, Joe Gidi <[email protected]> wrote: > >> In every case, when the box hangs, I'm unable to break into ddb. > > > > How long do you leave it when it hangs? There have been occasions > > where a box appears to hang but then recovers. > > > > Are you using softdep? > > I actually resolved this by pulling and reseating all the DIMMs. > > Oddly enough, prior to that, the box went through 3 complete runs of > memtest86+ without error, but continued to hang at random spots during > 'make -j8 build'. > > I pulled and reseated all the memory and then did 5 'make -j8 build' runs > successfully, no more hangs. > > Very strange, but this is why I like to stress-test new builds...
actually, it's the most reliable way to detect faulty hardware. Memory testers, if at all, only find specific issues (mostly by writing and reading bit patterns to RAM). They can't stimulate and stress the hardware as a build process (e.g. of an operating system) does. Memtest and such only have limited use. Yours, Norman

