Daniel
2007-Jul-09 05:27 UTC
[Ocfs2-users] Kernel panic with OCFS2 1.2.6 for EL5 (answer to multipath question)
Hello This is a bit off-topic, but here goes: Try installing the "device-mapper-multipath" package and follow the documentation below - residing at the powerlink.emc.com site: "Native Multipath Failover Based on DM-MPIO for v2.6.x Linux Kernel and EMC(r) Storage Arrays" When configured this works just as good as PowerPath. This works great on RHEL / CentOS 5 Daniel On 7/5/07, Luis Freitas <lfreitas34@yahoo.com> wrote:> > > I always get these annoying messages with EMC storages. > > They seem to have a unusable lun that appears for the operating system > and the kernel keeps trying to access it. > > On RH 4.0 these messages appears on dmesg, I remember that RH 3.0showed them on /var/log/messages also: > > SCSI error : <0 0 0 0> return code = 0x20000 > SCSI error : <0 0 0 0> return code = 0x20000 > SCSI error : <1 0 0 1> return code = 0x20000 > SCSI error : <0 0 0 0> return code = 0x20000 > SCSI error : <0 0 0 0> return code = 0x20000 > SCSI error : <1 0 0 0> return code = 0x20000 > Anyone knows how to prevent the kernel from trying to access this lun? > > Regards, > Luis Freitas > > *Daniel <daniel.anderzen@gmail.com>* wrote: > > Hello > > System: Two brand new Dell 1950 servers with dual Intel Quadcore Xeon > connected to an EMC CX3-20 SAN. Running CentOS 5 x86_64 - both with kernel > 2.6.18-8.1.6-el5 x86_64. > > I just noticed a panic on one of the servers: > > Jul 2 04:08:52 megasrv2 kernel: (3568,2):dlm_drop_lockres_ref:2289 ERROR: > while dropping ref on > 87B24E40651A4C7C858EF03ED6F3595F:M00000000000000021af916b7dfbde4 (master=0) > got -22. > Jul 2 04:08:52 megasrv2 kernel: (3568,2):dlm_print_one_lock_resource:294 > lockres: M00000000000000021af916b7dfbde4, owner=0, state=64 > Jul 2 04:08:52 megasrv2 kernel: > (3568,2):__dlm_print_one_lock_resource:309 lockres: > M00000000000000021af916b7dfbde4, owner=0, state=64 > Jul 2 04:08:52 megasrv2 kernel: > (3568,2):__dlm_print_one_lock_resource:311 last used: 4747810336, on purge > list: yes > Jul 2 04:08:52 megasrv2 kernel: (3568,2):dlm_print_lockres_refmap:277 > refmap nodes: [ ], inflight=0 > Jul 2 04:08:52 megasrv2 kernel: > (3568,2):__dlm_print_one_lock_resource:313 granted queue: > Jul 2 04:08:52 megasrv2 kernel: > (3568,2):__dlm_print_one_lock_resource:328 converting queue: > Jul 2 04:08:52 megasrv2 kernel: > (3568,2):__dlm_print_one_lock_resource:343 blocked queue: > Jul 2 04:08:52 megasrv2 kernel: ----------- [cut here ] --------- [please > bite here ] --------- > > After booting the server I'm getting a lot of the following messages: > > Jul 5 11:09:54 megasrv2 kernel: Additional sense: Logical unit not > ready, manual intervention required > Jul 5 11:09:54 megasrv2 kernel: end_request: I/O error, dev sdd, sector 0 > Jul 5 11:09:54 megasrv2 kernel: Buffer I/O error on device sdd, logical > block 0 > Jul 5 11:09:54 megasrv2 kernel: sd 1:0:0:2: Device not ready: <6>: > Current: sense key: Not Ready > > But I guess this one has something to do with EMC PowerPath as sdd is not > a valid device. And there is no PowerPath for use with RHEL5 yet... > > I'm sorry I haven't had the time to investigate this much. But right now I > have no clue what caused this panic, or if it will happen again... > _______________________________________________ > Ocfs2-users mailing list > Ocfs2-users@oss.oracle.com > http://oss.oracle.com/mailman/listinfo/ocfs2-users > > > ------------------------------ > Luggage? GPS? Comic books? > Check out fitting gifts for grads<http://us.rd.yahoo.com/evt=48249/*http://search.yahoo.com/search?fr=oni_on_mail&p=graduation+gifts&cs=bz>at Yahoo! Search. > > > _______________________________________________ > Ocfs2-users mailing list > Ocfs2-users@oss.oracle.com > http://oss.oracle.com/mailman/listinfo/ocfs2-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://oss.oracle.com/pipermail/ocfs2-users/attachments/20070709/9b9ccd99/attachment.html
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