[Lustre-discuss] ko2iblnd panics in kiblnd_map_tx_descs

[Liang Zhen]

Hi Chris,
To resolve your problem, please:
1. apply this patch to your lnet:
https://bugzilla.lustre.org/attachment.cgi?id=15733
2. please make sure use this option while configure: 
--with-o2ib=/path/to/ofed
3. Copy /path/to/ofed/Module.symvers to your $LUSTRE before building

Regards
Liang

Chris Worley wrote:
> I'm trying to port Lustre 1.6.4.2 to OFED 1.2.5.5 w/ the RHEL kernel
> 2.6.9.67.0.4.
>
> ksocklnd-based mounts work fine, but when I try to mount over IB, I
> get a panic in ko2iblnd in the transmit descriptor mapping routine:
>
> general protection fault: 0000 [1] SMP
> CPU 1
> Modules linked in: ko2iblnd(U) ptlrpc(U) obdclass(U) lnet(U) lvfs(U)
> libcfs(U) nfs(U) lockd(U) nfs_acl(U) sunrpc(U) rdma_ucm(U) ib_sdp(U)
> rdma_cm(U) iw_cm(U) ib_addr(U) mlx4_ib(U) mlx4_core(U) ib_mthca(U)
> dm_mod(U) ib_ipoib(U) md5(U) ipv6(U) ib_umad(U) ib_ucm(U) ib_uverbs(U)
> ib_cm(U) ib_sa(U) ib_mad(U) ib_core(U) aic79xx(U) e1000(U) ext3(U)
> jbd(U) raid0(U) mptscsih(U) mptsas(U) mptspi(U) mptscsi(U) mptbase(U)
> sd_mod(U) ata_piix(U) libata(U) scsi_mod(U)
> Pid: 5141, comm: modprobe Not tainted 2.6.9-67.0.4.EL-Lustre-1.6.4.2
> RIP: 0010:[<ffffffffa04659d1>]
> <ffffffffa04659d1>{:ko2iblnd:kiblnd_map_tx_descs+225}
> RSP: 0000:00000102105d7cd8  EFLAGS: 00010286
> RAX: ffffffffa01e6b4e RBX: ffffff0010028000 RCX: 0000000000000001
> RDX: 0000000000001000 RSI: 000001020e705000 RDI: 00000102154e2000
> RBP: 00000102102c4200 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 00000000ffffffff R12: 0000000000000000
> R13: 0000000000000000 R14: 0000000000000000 R15: 00000102102c4228
> FS:  0000002a958a0b00(0000) GS:ffffffff8046ac00(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> CR2: 0000002a9598200f CR3: 000000009fa08000 CR4: 00000000000006e0
> Process modprobe (pid: 5141, threadinfo 00000102105d6000, task 00000102175e0030)
> Stack: 0000000000000000 00000102102c4080 00000102102c4100 00000102102c4200
>        00000102179c2b86 00000102177df400 0000010215548ac0 ffffffffa0466fdf
>        00000102179c2b85 0000000000000000
> Call Trace:<ffffffffa0466fdf>{:ko2iblnd:kiblnd_startup+2239}
> <ffffffffa03043dc>{:lnet:lnet_startup_lndnis+332}
>        <ffffffffa02d2f38>{:libcfs:cfs_alloc+40}
> <ffffffffa0305206>{:lnet:LNetNIInit+278}
>        <ffffffffa03fcb0a>{:ptlrpc:ptlrpc_ni_init+106}
> <ffffffff8012f9cd>{default_wake_function+0}
>        <ffffffffa03fcbfa>{:ptlrpc:ptlrpc_init_portals+10}
>        <ffffffff8012f9cd>{default_wake_function+0}
> <ffffffffa045f22b>{:ptlrpc:init_module+267}
>        <ffffffff8014bc0a>{sys_init_module+278}
> <ffffffff8010f23e>{system_call+126}
>
>
> Code: ff 50 08 eb 12 48 8b 3f b9 01 00 00 00 ba 00 10 00 00 e8 30
> RIP <ffffffffa04659d1>{:ko2iblnd:kiblnd_map_tx_descs+225} RSP <00000102105d7cd8>
>
> Does this ring any bells?  Otherwise, any debugging tips?
>
> Shane said that they get an oops if they compile with the "version
> specific OFA tree".  Is this the Oops?
>
> Thanks,
>
> Chris
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>