[Lustre-discuss] ko2iblnd panics in kiblnd_map_tx_descs

[Chris Worley]

On Wed, Mar 5, 2008 at 7:30 AM, Chris Worley <worleys at gmail.com> wrote:
> On Wed, Mar 5, 2008 at 7:24 AM, Sébastien Buisson
>  <sebastien.buisson at bull.net> wrote:
>  > Hi there,
>  >
>  >  I have the same problem described by Chris, so I am interested in the
>  >  solution. ;-)
>  >  The problem is that I do not understand where to copy the OFED
>  >  Module.symvers.
>
>  It goes in your kernel source directory...i.e.:  /usr/src/linux/.

And don't copy it, append it... and make sure no IB symbols are in
there already.

Chris
>
>  Chris
>
>
> >  I tried to put it in the directory where I build lustre
>  >  (subdirectories are build, ldiskfs, libsysio, lnet, lustre and snmp),
>  >  but I still get the "undefined symbols" messages when building.
>  >
>  >  Any idea?
>  >
>  >  Cheers,
>  >  Sebastien.
>  >
>  >
>  >  Liang Zhen a écrit :
>  >
>  >
>  > > 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
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>  >  >>
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