Hi... I have install CentOS 5.4 with Xen 3.0.3... I get this message from kernel: Apr 5 09:59:14 zebra kernel: BUG: warning at lib/kref.c:32/kref_get() (Not tainted) Apr 5 09:59:14 zebra kernel: Apr 5 09:59:14 zebra kernel: Call Trace: Apr 5 09:59:14 zebra kernel: [<ffffffff8023824d>] kref_get+0x38/0x3d Apr 5 09:59:14 zebra kernel: [<ffffffff8025a440>] kobject_get+0x12/0x17 Apr 5 09:59:14 zebra kernel: [<ffffffff8024b57f>] blk_get_queue+0x1f/0x26 Apr 5 09:59:14 zebra kernel: [<ffffffff887198f7>] :blkbk:dispatch_rw_block_io+0x4db/0x5a2 Apr 5 09:59:14 zebra kernel: [<ffffffff80340368>] __next_cpu+0x19/0x28 Apr 5 09:59:14 zebra kernel: [<ffffffff8028792a>] find_busiest_group+0x1db/0x44d Apr 5 09:59:14 zebra kernel: [<ffffffff802883c0>] dequeue_task+0x18/0x37 Apr 5 09:59:14 zebra kernel: [<ffffffff80288407>] deactivate_task+0x28/0x5f Apr 5 09:59:14 zebra kernel: [<ffffffff8026ef47>] monotonic_clock+0x35/0x7b Apr 5 09:59:14 zebra kernel: [<ffffffff80262dd3>] thread_return+0x6c/0x113 Apr 5 09:59:14 zebra kernel: [<ffffffff80340af5>] kobject_cleanup+0x39/0x7e Apr 5 09:59:14 zebra kernel: [<ffffffff88719d2c>] :blkbk:blkif_schedule+0x36e/0x456 Apr 5 09:59:14 zebra kernel: [<ffffffff887199be>] :blkbk:blkif_schedule+0x0/0x456 Apr 5 09:59:14 zebra kernel: [<ffffffff8029bdab>] keventd_create_kthread+0x0/0xc4 Apr 5 09:59:14 zebra kernel: [<ffffffff80233bef>] kthread+0xfe/0x132 Apr 5 09:59:14 zebra kernel: [<ffffffff80260b2c>] child_rip+0xa/0x12 Apr 5 09:59:14 zebra kernel: [<ffffffff8029bdab>] keventd_create_kthread+0x0/0xc4 Apr 5 09:59:14 zebra kernel: [<ffffffff80233af1>] kthread+0x0/0x132 Apr 5 09:59:14 zebra kernel: [<ffffffff80260b22>] child_rip+0x0/0x12 Apr 5 09:59:14 zebra kernel: I do not know if this is a Xen Bug or CentOS or a Kernel BUG... I use this kernel: 2.6.18-164.15.1.el5.centos.plusxen #1 SMP Wed Mar 17 20:32:20 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux But doesn''t matter what kernel I use come from CentOS mirror with xen support... I allways get that kernel message.... Somebody already have thi problem too??? Thanks for any advice... -- Gilberto Nunes Ferreira *Suporte T.I.* *Selbetti Gestão de Documentos* *(47) 3441-6004 / (47) 8861-6672* *Fax (47) 3441-6021* /*gilberto.nunes@selbetti.com.br*/ _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Olá Gilberto, Not going to help much ... just to give some feedback. I never saw that error, and I just installed a CentOS 54 x86_64 on a Quad AMD server (it installs xen 3.0.3, aka xen 3.1.2 or something) but I do not remember to have that error. I''m now with xen 3.4.2, and from xend.log I cannot see that BUG error. The only think I notice different from what I''m used to see is your kernel : I have 2.6.18-164.15.1.el5xen, you have 2.6.18-164.15.1.el5.*centos.plusxen* I expect that if you install a from a CentOS repo you will get the same kernel as me, but I''m wrong then. Cheers, N. Gilberto Nunes wrote:> Hi... > > I have install CentOS 5.4 with Xen 3.0.3... > > I get this message from kernel: > > Apr 5 09:59:14 zebra kernel: BUG: warning at lib/kref.c:32/kref_get() > (Not tainted) > Apr 5 09:59:14 zebra kernel: > Apr 5 09:59:14 zebra kernel: Call Trace: > Apr 5 09:59:14 zebra kernel: [<ffffffff8023824d>] kref_get+0x38/0x3d > Apr 5 09:59:14 zebra kernel: [<ffffffff8025a440>] kobject_get+0x12/0x17 > Apr 5 09:59:14 zebra kernel: [<ffffffff8024b57f>] > blk_get_queue+0x1f/0x26 > Apr 5 09:59:14 zebra kernel: [<ffffffff887198f7>] > :blkbk:dispatch_rw_block_io+0x4db/0x5a2 > Apr 5 09:59:14 zebra kernel: [<ffffffff80340368>] __next_cpu+0x19/0x28 > Apr 5 09:59:14 zebra kernel: [<ffffffff8028792a>] > find_busiest_group+0x1db/0x44d > Apr 5 09:59:14 zebra kernel: [<ffffffff802883c0>] > dequeue_task+0x18/0x37 > Apr 5 09:59:14 zebra kernel: [<ffffffff80288407>] > deactivate_task+0x28/0x5f > Apr 5 09:59:14 zebra kernel: [<ffffffff8026ef47>] > monotonic_clock+0x35/0x7b > Apr 5 09:59:14 zebra kernel: [<ffffffff80262dd3>] > thread_return+0x6c/0x113 > Apr 5 09:59:14 zebra kernel: [<ffffffff80340af5>] > kobject_cleanup+0x39/0x7e > Apr 5 09:59:14 zebra kernel: [<ffffffff88719d2c>] > :blkbk:blkif_schedule+0x36e/0x456 > Apr 5 09:59:14 zebra kernel: [<ffffffff887199be>] > :blkbk:blkif_schedule+0x0/0x456 > Apr 5 09:59:14 zebra kernel: [<ffffffff8029bdab>] > keventd_create_kthread+0x0/0xc4 > Apr 5 09:59:14 zebra kernel: [<ffffffff80233bef>] kthread+0xfe/0x132 > Apr 5 09:59:14 zebra kernel: [<ffffffff80260b2c>] child_rip+0xa/0x12 > Apr 5 09:59:14 zebra kernel: [<ffffffff8029bdab>] > keventd_create_kthread+0x0/0xc4 > Apr 5 09:59:14 zebra kernel: [<ffffffff80233af1>] kthread+0x0/0x132 > Apr 5 09:59:14 zebra kernel: [<ffffffff80260b22>] child_rip+0x0/0x12 > Apr 5 09:59:14 zebra kernel: > > I do not know if this is a Xen Bug or CentOS or a Kernel BUG... > > I use this kernel: 2.6.18-164.15.1.el5.centos.plusxen #1 SMP Wed Mar > 17 20:32:20 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux > > But doesn''t matter what kernel I use come from CentOS mirror with xen > support... > I allways get that kernel message.... > > Somebody already have thi problem too??? > > Thanks for any advice...-- =============================================Nuno Ricardo Santos Loureiro da Silva Ferreira NMR Spectroscopy Research Group Bijvoet Center for Biomolecular Research Utrecht University Bloembergen gebouw Padualaan 8, 3584 CH Utrecht The Netherlands P: +31.(0)30.253 9932 F: +31.(0)30.253 2652 E: n.l.ferreira@uu.nl W: http://nmr.chem.uu.nl ============================================= _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi... First of all, I make a mistake when I mentioned the Xen version.... The correct is xen 3.1.2... And yes, the kernel version I used here is centos.plusxen, come from CentOS Plus Mirror: http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus I just enable this on yum repo and upgrade system... My system is already up of date.... I search from information on irc roons and google... So, I notice that this issue perhaps happen because I use a very recent version of Aoe-tools with old module kernels... (Yeah! I have aoe here.... I NAS Server with gigalan crossover cable between Dell PowerEdge 1950 and NAS server.... So, I have three or four vm with aoe partitions...) I do not know if this true or not... By the way, I''ll continue with my research and try fix this problem.. Thanks for help Nuno L. Ferreira escreveu: Olá Gilberto, Not going to help much ... just to give some feedback. I never saw that error, and I just installed a CentOS 54 x86_64 on a Quad AMD server (it installs xen 3.0.3, aka xen 3.1.2 or something) but I do not remember to have that error. I''m now with xen 3.4.2, and from xend.log I cannot see that BUG error. The only think I notice different from what I''m used to see is your kernel : I have 2.6.18-164.15.1.el5xen, you have 2.6.18-164.15.1.el5.*centos.plusxen* I expect that if you install a from a CentOS repo you will get the same kernel as me, but I''m wrong then. Cheers, N. Gilberto Nunes wrote: Hi... I have install CentOS 5.4 with Xen 3.0.3... I get this message from kernel: Apr 5 09:59:14 zebra kernel: BUG: warning at lib/kref.c:32/kref_get() (Not tainted) Apr 5 09:59:14 zebra kernel: Apr 5 09:59:14 zebra kernel: Call Trace: Apr 5 09:59:14 zebra kernel: [] kref_get+0x38/0x3d Apr 5 09:59:14 zebra kernel: [] kobject_get+0x12/0x17 Apr 5 09:59:14 zebra kernel: [] blk_get_queue+0x1f/0x26 Apr 5 09:59:14 zebra kernel: [] :blkbk:dispatch_rw_block_io+0x4db/0x5a2 Apr 5 09:59:14 zebra kernel: [] __next_cpu+0x19/0x28 Apr 5 09:59:14 zebra kernel: [] find_busiest_group+0x1db/0x44d Apr 5 09:59:14 zebra kernel: [] dequeue_task+0x18/0x37 Apr 5 09:59:14 zebra kernel: [] deactivate_task+0x28/0x5f Apr 5 09:59:14 zebra kernel: [] monotonic_clock+0x35/0x7b Apr 5 09:59:14 zebra kernel: [] thread_return+0x6c/0x113 Apr 5 09:59:14 zebra kernel: [] kobject_cleanup+0x39/0x7e Apr 5 09:59:14 zebra kernel: [] :blkbk:blkif_schedule+0x36e/0x456 Apr 5 09:59:14 zebra kernel: [] :blkbk:blkif_schedule+0x0/0x456 Apr 5 09:59:14 zebra kernel: [] keventd_create_kthread+0x0/0xc4 Apr 5 09:59:14 zebra kernel: [] kthread+0xfe/0x132 Apr 5 09:59:14 zebra kernel: [] child_rip+0xa/0x12 Apr 5 09:59:14 zebra kernel: [] keventd_create_kthread+0x0/0xc4 Apr 5 09:59:14 zebra kernel: [] kthread+0x0/0x132 Apr 5 09:59:14 zebra kernel: [] child_rip+0x0/0x12 Apr 5 09:59:14 zebra kernel: I do not know if this is a Xen Bug or CentOS or a Kernel BUG... I use this kernel: 2.6.18-164.15.1.el5.centos.plusxen #1 SMP Wed Mar 17 20:32:20 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux But doesn''t matter what kernel I use come from CentOS mirror with xen support... I allways get that kernel message.... Somebody already have thi problem too??? Thanks for any advice... -- Gilberto Nunes Ferreira Suporte T.I. Selbetti Gestão de Documentos (47) 3441-6004 / (47) 8861-6672 Fax (47) 3441-6021 gilberto.nunes@selbetti.com.br _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users