Re: [Xen-users] xen host kernel panic

[Margusja <margus@xxxxxx>]

I found, if I use newer kernel there is no that bug anymore. So I can 
wait newer xen-kernel form Centos-5.6 or I can compile it my own.
Tervitades, Margus (Margusja) Roo
+372 51 48 780
http://margus.roo.ee
msn: margusja@xxxxxxxxx
skype: margusja


On 5/3/11 8:29 PM, Joseph Glanville wrote:
> Hi Margus,
>
> Have you tried upgrading to a more recent version of OFED/OpenIB?
> Also which initiator are you using? I suspect open-iscsi?
>
> Kind regards,
> Joseph.
>
> On 1 May 2011 20:25, Margusja<margus@xxxxxx>  wrote:
> > I set up xen server again. Mounted iscsi target without iser suport and the
> > system is stable. No more kernel panics.
> > But without iser supert iscsi target access much slower :(
> >
> > Tervitades, Margus (Margusja) Roo
> > +372 51 48 780
> > http://margus.roo.ee
> > msn: margusja@xxxxxxxxx
> > skype: margusja
> >
> >
> > On 4/30/11 9:47 PM, Margus Roo wrote:
> > > CentOS 5.6
> > > Linux 2.6.18-238.9.1.el5xen xen.x86_64
> > > xen 3.0.3-120.el5_6.1
> > >
> > > I have storage server connected to the xen host server via infini band
> > > iscsi iser.
> > > InfiniBand: Mellanox Technologies MT26428 [ConnectX VPI PCIe 2.0 5GT/s -
> > > IB QDR / 10GigE] (rev b0)
> > >
> > > I use openib.noarch 1.4.1-5.el5
> > >
> > > line from lsmod:
> > > ib_core               105157  15
> > > ib_iser,ib_srp,rds,ib_sdp,ib_ipoib,rdma_ucm,rdma_cm,ib_ucm,ib_uverbs,ib_umad,ib_cm,iw_cm,ib_sa,mlx4_ib,ib_mad
> > >
> > > some lines from dmsg:
> > > ib_srp: ASYNC event= 17 on device= mlx4_0
> > > ib_srp: ASYNC event= 11 on device= mlx4_0
> > > ib_srp: ASYNC event= 9 on device= mlx4_0
> > > scsi4 : iSCSI Initiator over TCP/IP
> > >   Vendor: IET       Model: Controller        Rev: 0001
> > >   Type:   RAID                               ANSI SCSI revision: 05
> > > scsi 4:0:0:0: Attached scsi generic sg2 type 12
> > >   Vendor: IET       Model: VIRTUAL-DISK      Rev: 0001
> > >   Type:   Direct-Access                      ANSI SCSI revision: 05
> > > SCSI device sdc: 20971520 512-byte hdwr sectors (10737 MB)
> > > sdc: Write Protect is off
> > > sdc: Mode Sense: 49 00 00 08
> > > SCSI device sdc: drive cache: write back
> > > SCSI device sdc: 20971520 512-byte hdwr sectors (10737 MB)
> > > sdc: Write Protect is off
> > > sdc: Mode Sense: 49 00 00 08
> > > SCSI device sdc: drive cache: write back
> > >   sdc: sdc1 sdc2
> > > sd 4:0:0:1: Attached scsi disk sdc
> > > sd 4:0:0:1: Attached scsi generic sg3 type 0
> > >   Vendor: IET       Model: VIRTUAL-DISK      Rev: 0001
> > >   Type:   Direct-Access                      ANSI SCSI revision: 05
> > > SCSI device sdd: 1048576000 512-byte hdwr sectors (536871 MB)
> > > sdd: Write Protect is off
> > > sdd: Mode Sense: 49 00 00 08
> > > SCSI device sdd: drive cache: write back
> > > SCSI device sdd: 1048576000 512-byte hdwr sectors (536871 MB)
> > > sdd: Write Protect is off
> > > sdd: Mode Sense: 49 00 00 08
> > > SCSI device sdd: drive cache: write back
> > >   sdd: sdd1 sdd2 sdd3 sdd4<  sdd5>
> > > sd 4:0:0:2: Attached scsi disk sdd
> > > sd 4:0:0:2: Attached scsi generic sg4 type 0
> > >
> > > sdc and sdd are devices from storage server.
> > >
> > > I got several times xen host server pernel panic.
> > > RIP [<ffff885d5f04>] :ib_ser: iser_reg_rdma_mem+0x111/0x77a
> > > ...
> > > Kernel panic - no syncing: Fatal exception
> > >
> > > Here is a screen shot I took:
> > > http://margus.roo.ee/wp-content/uploads/2011/04/xen_host_crash.png
> > >
> > > -- with
> > > Margus Roo
> > > http://www.okia.ee
> > >
> > >
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> > > Xen-users mailing list
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