Lustre discuss - Sep 2011 - OSS crashing on LVM mirrored volume with other then default regionsize

Hello,

When we create OST on LVM mirrored volume with 4MB regionsize then OSS server
crashes;

Sep  3 03:11:53 sklusp03b kernel: Oops: 0000 [1] SMP
Sep  3 03:11:53 sklusp03b kernel: last sysfs file:
/devices/pci0000:00/0000:00:07.0/0000:06:00.1/host1/rport-1:0-1/target1:0:1/1:0:1:2/timeout
Sep  3 03:11:53 sklusp03b kernel: CPU 2
Sep  3 03:11:53 sklusp03b kernel: Modules linked in: mptctl(U) mptbase(U)
ipmi_si(U) ipmi_devintf(U) ipmi_msghandler(U) obdfilter(U) fsfilt_ld
iskfs(U) ost(U) mgc(U) ldiskfs(U) crc16(U) lustre(U) lov(U) mdc(U) lquota(U)
osc(U) ksocklnd(U) ptlrpc(U) obdclass(U) lnet(U) lvfs(U) libcfs(U
) dm_log_clustered(U) lock_dlm(U) gfs2(U) dlm(U) configfs(U) i2c_dev(U)
i2c_core(U) lockd(U) sunrpc(U) bonding(U) ipv6(U) xfrm_nalgo(U) crypto
_api(U) dm_round_robin(U) dm_multipath(U) scsi_dh(U) parport_pc(U) lp(U)
parport(U) pcspkr(U) shpchp(U) bnx2x(U) serio_raw(U) hpilo(U) sg(U) d
m_raid45(U) dm_message(U) dm_region_hash(U) dm_mem_cache(U) dm_snapshot(U)
dm_zero(U) dm_mirror(U) dm_log(U) dm_mod(U) usb_storage(U) qla2xxx(
U) scsi_transport_fc(U) cciss(U) sd_mod(U) scsi_mod(U) ext3(U) jbd(U)
uhci_hcd(U) ohci_hcd(U) ehci_hcd(U)
Sep  3 03:11:53 sklusp03b kernel: Pid: 11410, comm: kmirrord Tainted: G     
2.6.18-194.17.1.el5_lustre.1.8.5 #1
Sep  3 03:11:53 sklusp03b kernel: RIP: 0010:[<ffffffff8822b2fd>] 
[<ffffffff8822b2fd>] :dm_mod:dispatch_io+0xb9/0x19b
Sep  3 03:11:53 sklusp03b kernel: RSP: 0018:ffff8111cf72fb60  EFLAGS: 00010206
Sep  3 03:11:53 sklusp03b kernel: RAX: 0000000019204800 RBX: 0000000000000000
RCX: ffffffff8008cf93
Sep  3 03:11:53 sklusp03b kernel: RDX: 000000000000004e RSI: ffff8111c64efc40
RDI: 0000000000000001
Sep  3 03:11:53 sklusp03b kernel: RBP: 0000000000000800 R08: 0000000000000000
R09: ffff8111e32040c0
Sep  3 03:11:53 sklusp03b kernel: R10: 0000000000000040 R11: ffffffff80044fcd
R12: ffff8111cf72fc40
Sep  3 03:11:53 sklusp03b kernel: R13: ffff8111cf72fdc0 R14: ffff8111e65579c0
R15: 0000000000000000
Sep  3 03:11:53 sklusp03b kernel: FS:  0000000000000000(0000)
GS:ffff81121ffb0140(0000) knlGS:0000000000000000
Sep  3 03:11:53 sklusp03b kernel: CS:  0010 DS: 0018 ES: 0018 CR0:
000000008005003b
Sep  3 03:11:53 sklusp03b kernel: CR2: 0000000000000040 CR3: 0000000000201000
CR4: 00000000000006e0
Sep  3 03:11:53 sklusp03b kernel: Process kmirrord (pid: 11410, threadinfo
ffff8111cf72e000, task ffff8111e32040c0)
Sep  3 03:11:53 sklusp03b kernel: Stack:  ffff8111cf72fdc0 0000000000000001
ffffffff8822b0b0 ffffffff8822b0c8
Sep  3 03:11:53 sklusp03b kernel:  000000000000c902 ffff8111c64cf000
000000000000808c ffff8111cf72fc60
Sep  3 03:11:53 sklusp03b kernel:  ffff8111cf72fc64 000000001f44d600
ffff8111deb555c0 ffff8111cf68e5c0
Sep  3 03:17:09 sklusp03b syslogd 1.4.1: restart.

Had anyone similar experience.
Thanks,
Akos
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