Date: Thu, 1 Jun 2017 03:07:36 -0700 From: Mehmet Erol Sanliturk <m.e.sanliturk@gmail.com> To: FreeBSD Questions Mailing List <freebsd-questions@freebsd.org> Subject: Re: Advice on kernel panics Message-ID: <CAOgwaMvse3h7Kn%2BeZW_mz2EDR8PqG_x5=F0nGZ=JHk=ap7Dz%2BQ@mail.gmail.com> In-Reply-To: <20170601082749.GA80543@erix.ericsson.se> References: <20170529092043.GA89682@erix.ericsson.se> <20170601051030.GA39861@geeks.org> <20170601082749.GA80543@erix.ericsson.se>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Jun 1, 2017 at 1:27 AM, Raimo Niskanen < raimo+freebsd@erix.ericsson.se> wrote: > On Thu, Jun 01, 2017 at 12:10:30AM -0500, Doug McIntyre wrote: > > On Mon, May 29, 2017 at 11:20:43AM +0200, Raimo Niskanen wrote: > > > I have a server that panics about every 3 days and need some advice on > how > > > to handle that. > > > > I'd expect it is some sort of hardware failure, as I would expect > > kernel panics more on the order of once a decade with FreeBSD. Ie. > > I've seen one or two on my hundred or so servers, but its pretty rare. > > > > Check and recheck your hardware items. > > I have removed one of four memory capsules - panicked again. Will rotate > through all of them... > > > > > Runup memtest86+. Check your drive hardware, turn on SMART checking. > > I have run memtest86+ over night - no errors found. > > I have installed smartmontools - no errors found, short and long self tests > on both disks run fine. zpool scrub repaired 0 errors and has no known > data > errors. > > > Any further hints on how to "Check your drive hardware"? > > > Thank you for your advice. > -- > > / Raimo Niskanen, Erlang/OTP, Ericsson AB > _______________________________________________ > f <freebsd-questions@freebsd.org> > Also check cables , because , sometimes , some connector parts are not transmitting data properly . Another possibility may be a faulty executable binary because some bits may be changed in place . Another possibility may be power level ( Watts ) of power supply : Adding some new hardware part(s) may exceed capacity of existing power supply : When executed programs require more power , due to insufficient power level , circuits may be corrupted . If it is possible , by removing connectors of existing HDDs and installing a new OS on a spare disk may show possibility of modified binary existence . If the new install is not panicking , then existing installed parts may have defective parts . If the new install is also panicking , then your hardware ( for example , main board , circuits in main board ) has some trouble points . Mehmet Erol Sanliturk
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAOgwaMvse3h7Kn%2BeZW_mz2EDR8PqG_x5=F0nGZ=JHk=ap7Dz%2BQ>