WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

Re: [Xen-users] xen host kernel panic

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] xen host kernel panic
From: Margusja <margus@xxxxxx>
Date: Sun, 01 May 2011 13:25:38 +0300
Delivery-date: Sun, 01 May 2011 03:27:03 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <4DBC595A.7040701@xxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <4DBC595A.7040701@xxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10
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


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

<Prev in Thread] Current Thread [Next in Thread>