Olha, nao sei se as memórias são hot-swap... teoricamente deveria ser, mas é um servidor de banco de dados, nao é beeemmmm assim chegar, abrir e arrancar algumas memórias... rsrs. Até porque elas estão em bancos que são placas cheio de pentes de memória, teria de tirar uns 4GB por vez... #medo hehehe.--Eduardo SchoedlerEnviado via iPhoneSe ele não puder ficar com o servidor desligado, acho que seria legal retirar os pentes seletivamente como você disse e testar eles com o memtest em outro computador que suporte ECC, só pra ter certeza :)
On Dec 6, 2011 12:33 PM, "Daniel da Veiga" <danieldaveiga@gmail.com> wrote:Sem analisar mais completamente, eu diria que existe algum problema físico na memória, mas testar (memtest) esses GBs num server é praticamente inviável (demora e o server fica off)...
Talvez retirar pentes seletivamente?
2011/12/6 Eduardo Schoedler <listas@esds.com.br>Notei que não acontece somente no mysqld, vejam o "swapper" (pid 0):
[2317646.822785] swapper: page allocation failure. order:1, mode:0x20
[2317646.822792] Pid: 0, comm: swapper Not tainted 2.6.39-gentoo-r3 #1
[2317646.822796] Call Trace:
[2317646.822799] <IRQ> [<ffffffff8109f349>] 0xffffffff8109f349
[2317646.822807] [<ffffffff810ce49d>] 0xffffffff810ce49d
[2317646.822810] [<ffffffff810cf61b>] 0xffffffff810cf61b
[2317646.822813] [<ffffffff810cf3fd>] 0xffffffff810cf3fd
[2317646.822816] [<ffffffff810cf973>] 0xffffffff810cf973
[2317646.822819] [<ffffffff814cedbf>] 0xffffffff814cedbf
[2317646.822822] [<ffffffff814cef7d>] 0xffffffff814cef7d
[2317646.822825] [<ffffffff815481c3>] 0xffffffff815481c3
[2317646.822828] [<ffffffff81561a44>] 0xffffffff81561a44
[2317646.822831] [<ffffffff81560768>] 0xffffffff81560768
[2317646.822834] [<ffffffff81561792>] 0xffffffff81561792
[2317646.822837] [<ffffffff8155f964>] 0xffffffff8155f964
[2317646.822840] [<ffffffff81528dee>] ? 0xffffffff81528dee
[2317646.822843] [<ffffffff81560013>] 0xffffffff81560013
[2317646.822846] [<ffffffff8151b456>] ? 0xffffffff8151b456
[2317646.822849] [<ffffffff8153e3c0>] ? 0xffffffff8153e3c0
[2317646.822852] [<ffffffff8153e41f>] 0xffffffff8153e41f
[2317646.822855] [<ffffffff8153e5c8>] 0xffffffff8153e5c8
[2317646.822858] [<ffffffff8153dec1>] 0xffffffff8153dec1
[2317646.822860] [<ffffffff8153e2fd>] 0xffffffff8153e2fd
[2317646.822864] [<ffffffff814dbb4a>] 0xffffffff814dbb4a
[2317646.822866] [<ffffffff81009479>] ? 0xffffffff81009479
[2317646.822870] [<ffffffff814dbf68>] 0xffffffff814dbf68
[2317646.822873] [<ffffffff814dc098>] 0xffffffff814dc098
[2317646.822875] [<ffffffff814dc5c5>] 0xffffffff814dc5c5
[2317646.822878] [<ffffffff81416555>] 0xffffffff81416555
[2317646.822881] [<ffffffff81418d54>] ? 0xffffffff81418d54
[2317646.822884] [<ffffffff812af390>] ? 0xffffffff812af390
[2317646.822888] [<ffffffff81417414>] 0xffffffff81417414
[2317646.822891] [<ffffffff814dc741>] 0xffffffff814dc741
[2317646.822894] [<ffffffff81047849>] 0xffffffff81047849
[2317646.822897] [<ffffffff8163ee1c>] 0xffffffff8163ee1c
[2317646.822899] [<ffffffff810049f5>] 0xffffffff810049f5
[2317646.822902] [<ffffffff810476e6>] 0xffffffff810476e6
[2317646.822905] [<ffffffff810041c1>] 0xffffffff810041c1
[2317646.822908] [<ffffffff8163d553>] 0xffffffff8163d553
[2317646.822910] <EOI> [<ffffffff810628a8>] ? 0xffffffff810628a8
[2317646.822915] [<ffffffff8100a77e>] ? 0xffffffff8100a77e
[2317646.822918] [<ffffffff81001f50>] ? 0xffffffff81001f50
[2317646.822921] [<ffffffff81001fbf>] 0xffffffff81001fbf
[2317646.822924] [<ffffffff816125fd>] 0xffffffff816125fd
[2317646.822926] [<ffffffff81bc8c23>] 0xffffffff81bc8c23
[2317646.822929] [<ffffffff81bc831a>] 0xffffffff81bc831a
[2317646.822932] [<ffffffff81bc841f>] 0xffffffff81bc841f
> -----Mensagem original-----
> De: Thiago Nunes [mailto:thiagonunesrs@gmail.com]
> Enviada em: segunda-feira, 5 de dezembro de 2011 21:22
> Para: gentoo-user-br@lists.gentoo.org
> Assunto: Re: [gentoo-user-br] Problemas no Gentoo
>
> O core dump dá logo que levanta o mysql ou depois de um tempo rodando?
>
> Em 5 de dezembro de 2011 19:53, Eduardo Schoedler <listas@esds.com.br>
> escreveu:
> > São varias placas com vários pentes de memória. Ela usa memória ECC.
> > Já cogitei problema de mal contato, tirei todos os pentes de todos os
> > bancos de memória e limpei, nao resolveu.
> >
> > --
> > Eduardo Schoedler
> > Enviado via iPhone
> >
> > Em 05/12/2011, às 18:50, Daniel da Veiga <danieldaveiga@gmail.com>
> escreveu:
> >
> > Essa máquina roda 64 bits, presumo eu? Passa mais info (quantos bancos
> > de memória, por exemplo).
> >
> > On Mon, Dec 5, 2011 at 18:46, Eduardo Schoedler <listas@esds.com.br>
> wrote:
> >>
> >> Pessoal.
> >>
> >> Alguém já passou por esse problema?
> >> Administro um Dell R900 octa-core com 16GB RAM.
> >> Porém, do nada, aparece um core-dump:
> >>
> >> [2317687.527391] mysqld: page allocation failure. order:1, mode:0x20
> >> [2317687.527399] Pid: 16959, comm: mysqld Not tainted
> >> 2.6.39-gentoo-r3 #1 [2317687.527402] Call Trace:
> >> [2317687.527405] <IRQ> [<ffffffff8109f349>] 0xffffffff8109f349
> >> [2317687.527413] [<ffffffff810ce49d>] 0xffffffff810ce49d
> >> [2317687.527416] [<ffffffff810cf61b>] 0xffffffff810cf61b
> >> [2317687.527420] [<ffffffff810cf3fd>] 0xffffffff810cf3fd
> >> [2317687.527422] [<ffffffff810cf973>] 0xffffffff810cf973
> >> [2317687.527425] [<ffffffff814cedbf>] 0xffffffff814cedbf
> >> [2317687.527428] [<ffffffff814cef7d>] 0xffffffff814cef7d
> >> [2317687.527431] [<ffffffff815481c3>] 0xffffffff815481c3
> >> [2317687.527434] [<ffffffff81561a44>] 0xffffffff81561a44
> >> [2317687.527437] [<ffffffff81560768>] 0xffffffff81560768
> >> [2317687.527440] [<ffffffff81561792>] 0xffffffff81561792
> >> [2317687.527443] [<ffffffff8155f964>] 0xffffffff8155f964
> >> [2317687.527446] [<ffffffff81528dee>] ? 0xffffffff81528dee
> >> [2317687.527449] [<ffffffff81560013>] 0xffffffff81560013
> >> [2317687.527452] [<ffffffff8151b456>] ? 0xffffffff8151b456
> >> [2317687.527455] [<ffffffff8153e3c0>] ? 0xffffffff8153e3c0
> >> [2317687.527458] [<ffffffff8153e41f>] 0xffffffff8153e41f
> >> [2317687.527461] [<ffffffff8153e5c8>] 0xffffffff8153e5c8
> >> [2317687.527464] [<ffffffff8153dec1>] 0xffffffff8153dec1
> >> [2317687.527467] [<ffffffff8153e2fd>] 0xffffffff8153e2fd
> >> [2317687.527470] [<ffffffff814dbb4a>] 0xffffffff814dbb4a
> >> [2317687.527472] [<ffffffff81086bcd>] ? 0xffffffff81086bcd
> >> [2317687.527475] [<ffffffff81009479>] ? 0xffffffff81009479
> >> [2317687.527478] [<ffffffff814dbf68>] 0xffffffff814dbf68
> >> [2317687.527481] [<ffffffff814dc098>] 0xffffffff814dc098
> >> [2317687.527484] [<ffffffff814dc5c5>] 0xffffffff814dc5c5
> >> [2317687.527487] [<ffffffff81416555>] 0xffffffff81416555
> >> [2317687.527490] [<ffffffff81418d54>] ? 0xffffffff81418d54
> >> [2317687.527493] [<ffffffff812af390>] ? 0xffffffff812af390
> >> [2317687.527497] [<ffffffff81417414>] 0xffffffff81417414
> >> [2317687.527500] [<ffffffff814dc741>] 0xffffffff814dc741
> >> [2317687.527503] [<ffffffff81047849>] 0xffffffff81047849
> >> [2317687.527506] [<ffffffff8163ee1c>] 0xffffffff8163ee1c
> >> [2317687.527508] [<ffffffff810049f5>] 0xffffffff810049f5
> >> [2317687.527511] [<ffffffff810476e6>] 0xffffffff810476e6
> >> [2317687.527514] [<ffffffff810041c1>] 0xffffffff810041c1
> >> [2317687.527517] [<ffffffff8163d553>] 0xffffffff8163d553
> >> [2317687.527519] <EOI>
> >>
> >> Fui atrás e não encontrei muita coisa.
> >> O que poderia ser?
> >>
> >> Obrigado.
> >>
> >> --
> >> Eduardo Schoedler
> >>
> >
> >
> >
> > --
> > Daniel da Veiga
--
Daniel da Veiga