[openib-general] ib_local_sa workqueue creation crash with ofed 1.2 + sles9sp3

[Sean Hefty]

Can you see if the call to create_singlethread_workqueue() passes in a string
longer than 8 characters?  If so, try reducing the size of the string.

I've committed a change to the local_sa.c file this morning to avoid this sort
of backport issue, if this is indeed what it is.

- Sean

>Loading ib_local_sa crashes on sles9sp3 with a BUG() trap.  Is this a
>known issue?
>
>----------- [cut here ] --------- [please bite here ] ---------
>Kernel BUG at workqueue:308
>invalid operand: 0000 [1] SMP
>CPU 0
>Pid: 7309, comm: modprobe Tainted: GF  U   (2.6.5-7.244-smp SLES9_SP3_BRANCH-
>200512121832250000)
>RIP: 0010:[<ffffffff8014f9c1>] <ffffffff8014f9c1>{__create_workqueue+33}
>RSP: 0000:000001003f4f7d38  EFLAGS: 00010202
>RAX: 000000000000000b RBX: ffffffffa02b4e69 RCX: 0000000000000bb8
>RDX: 0000000000000bb8 RSI: 0000000000000001 RDI: ffffffffa02b4e69
>RBP: 0000000000000001 R08: 000000000000003d R09: 0000000000000000
>R10: 00000000000493e0 R11: 0000000000000001 R12: ffffffff803e3fc0
>R13: 000000000000000a R14: ffffffff803e3fc0 R15: 0000000000000000
>FS:  0000002a95894b00(0000) GS:ffffffff8057cc00(0000) knlGS:0000000000000000
>CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>CR2: 0000000000539ccf CR3: 0000000000101000 CR4: 00000000000006e0
>Process modprobe (pid: 7309, threadinfo 000001003f4f6000, task
>000001001fcdc9e0)
>Stack: 000001003fe3f350 ffffffff803e4020 ffffffffa02b7180 ffffffff803e3fc0
>       000000000000000a ffffffff803e3fc0 ffffffffa02b2300 ffffffffa02bd08f
>       ffffffff803e4020 ffffffff8015d4dd
>Call Trace:<ffffffffa02bd08f>{:ib_local_sa:sa_db_init+143}
><ffffffff8015d4dd>{sys_init_module+6589}
>       <ffffffff80166d5b>{generic_file_read+187}
><ffffffffa02bd000>{:ib_local_sa:sa_db_init+0}
>       <ffffffff8018da34>{vfs_read+244} <ffffffff8018dc8d>{sys_read+157}
>       <ffffffff80110694>{system_call+124}
>
>Code: 0f 0b 17 66 38 80 ff ff ff ff 34 01 66 66 90 48 8b 3d 61 50
>RIP <ffffffff8014f9c1>{__create_workqueue+33} RSP <000001003f4f7d38>
>
>
>
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