To Bart's earlier question ... we apologize for not being able to come up with a time and date when the initiators lost contact with the target. We have not been able to test with an initiator from a vanilla kernel. We only tested with the initiator that ships with RedHat 5.3. We built the module against a slightly modified RedHat kernel that includes process management patches that allow for a unified process space for our cluster management software Scyld clusterware. Our patches do not affect any storage components.
[r...@head0 ~]# bpsh 1 modinfo ib_srp filename: /lib/modules/2.6.18-128.1.1.el5.530g0000/kernel/drivers/infiniband/ulp/srp/ib_srp.ko license: Dual BSD/GPL description: InfiniBand SCSI RDMA Protocol initiator v0.2 (November 1, 2005) author: Roland Dreier srcversion: 23B2629641E1A475BF72F44 depends: ib_core,scsi_mod,ib_cm,ib_sa vermagic: 2.6.18-128.1.1.el5.530g0000 SMP mod_unload gcc-4.1 parm: srp_sg_tablesize:Max number of gather/scatter entries per I/O (default is 12) (int) parm: topspin_workarounds:Enable workarounds for Topspin/Cisco SRP target bugs if != 0 (in t) parm: mellanox_workarounds:Enable workarounds for Mellanox SRP target bugs if != 0 (int) parm: srp_dev_loss_tmo:Default number of seconds that srp transport should in sulate the lost of a remote port (default is 60 secs (int) module_sig: 883f35049c0555e56ccec1c0ba19c3112f87b09e2872185017b618b6026be92291a62b5446018e009d1e 3299cd274ad8e31c3d0b03081b112959d4d84 Also ... we ran with only a single thread. Thanks Arend -----Original Message----- From: Chris Worley [mailto:[email protected]] Sent: Mon 11/9/2009 3:43 PM To: Vladislav Bolkhovitin Cc: Bart Van Assche; Arend Dittmer; Philip Pokorny; [email protected]; [email protected]; Vu Pham Subject: Re: SRPT and SCST On Mon, Nov 9, 2009 at 1:26 PM, Vladislav Bolkhovitin <[email protected]> wrote: > Bart Van Assche, on 11/08/2009 12:49 PM wrote: >> >> On Fri, Nov 6, 2009 at 6:28 PM, Arend Dittmer >> <[email protected]> wrote: >>> >>> Please find attached the gzip'ed /var/log/messages. >> >> This log clearly show the login and logout actions from the different >> initiators. I couldn't find anything unusual in the posted log file >> however. Around which time did the initiator start complaining about >> aborted SCSI commands ? Does this issue also happen when using the SRP >> initiator included in a vanilla (non-OFED) Linux kernel ? > > It looks painfully similar to what Chris Worley experienced some time ago > and somehow fixed/workarounded. > > Chris, can you comment on this? The "thread=1" fixed the problem mostly, but I am working with another group that says they still get an abort, but haven't gotten around to providing me with the info I need to look at it. Chris > >> Bart. >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in >> the body of a message to [email protected] >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
