Date: Wed, 06 Mar 2013 07:55:12 -0300 From: Marcelo Gondim <gondim@bsdinfo.com.br> To: freebsd-stable@freebsd.org Subject: Re: Strange reboot since 9.1 Message-ID: <51372090.3050009@bsdinfo.com.br> In-Reply-To: <CAJ-UWtTA2P26PUa=6%2B3xR4idC5RqeXnK2s-jw3815Y6Dif-Sng@mail.gmail.com> References: <1362560123.16808.4.camel@iMac-LBlot.domain.iogs> <CAJ-UWtTA2P26PUa=6%2B3xR4idC5RqeXnK2s-jw3815Y6Dif-Sng@mail.gmail.com>
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Em 06/03/13 06:18, Marin Atanasov Nikolov escreveu: > On Wed, Mar 6, 2013 at 10:55 AM, Loïc Blot <loic.blot@unix-experience.fr>wrote: > >> Hello, >> > Hi, > > >> Since FreeBSD 9.1 I have strange problems with the distribution. Some >> servers are rebooting without any kernel panic, instanly. First i >> thought it's a problem with my KVM system, but one of my FreeBSD under a >> Dell R210 have the same problem. >> The servers concerned are now: >> - Monitoring server >> - LDAP test server >> - Some other servers, randomly (not in production). >> First i thought it's a problem with my FreeBSD install, then i download >> another time the ISO but the problem was already here. After i try >> another thing, install 9.0 and upgrade to 9.1 but same problem. >> How can i get informations about this problem ? >> >> > I've had similar issues with one of my FreeBSD systems. My system had > spontaneous reboots without any kernel panic, without any clear evidence of > why it happened. > > After a lot of trials and tests the root cause appeared to be the amount of > ZFS snapshots I had, which were more than 1K on a 8G system. > > Upgrading from 9.0 to 9.1 didn't solve the issue, as clearly I had to do > some cleanup of the ZFS snapshots and since then it's more than a month > without any reboots. > > Few pointers that you could use -- get these systems monitored and keep an > eye on the monitoring system -- CPU usage, memory, processes, network > traffic, etc.. I've noticed that my system was running low on free memory > and that later led me to the ZFS snapshots clue. > > So, my advise is to get first these systems monitored and watch for > anything unusual happening. Then further investigate. > > Good luck. > > Regards, > Marin > > >> Thanks for advance. >> -- >> Best regards, >> >> Loïc BLOT, Engineering >> UNIX Systems, Security and Networks >> http://www.unix-experience.fr >> I have same problem but I'm using UFS and FreeBSD 9.1-STABLE with dumdev enabled (dumpdev="AUTO"). After spontaneous reboots, nothing in /var/crash. Spontaneous reboots always happen between 00:00 am and 09:00 am. FreeBSD rt01.xxx.com 9.1-STABLE FreeBSD 9.1-STABLE #14 r247497: Thu Feb 28 21:32:09 BRT 2013 root@rt01.xxx.com:/usr/obj/usr/src/sys/INTNET amd64 hw.machine: amd64 hw.model: Intel(R) Xeon(R) CPU E5606 @ 2.13GHz hw.ncpu: 8 hw.byteorder: 1234 hw.physmem: 8509702144 hw.usermem: 7911686144 Handle 0x0003, DMI type 2, 16 bytes Base Board Information Manufacturer: Intel Corporation Product Name: S5500BC Version: E25124-453 Serial Number: BZBZ04800361 Asset Tag: .................... Features: Board is a hosting board Board is replaceable Location In Chassis: Not Specified Chassis Handle: 0x0004 Type: Motherboard Contained Object Handles: 0 This motherboard have 2 CPU processors. []'s Gondim
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