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From: Andrew Friedley (afriedle_at_[hidden])
Date: 2005-11-23 19:46:41

I'm running the intel test suite against ompi revision r8247 (v1.0
branch), and the MPI_Probe_tag_c test is hanging on IU's thor cluster.
This only happens with using mvapi, and not with gm or tcp. The hang
happens whether or not I use sm with mvapi.

The processes appear to be spinning on the CPU, and a backtrace of one
of them looks like the following:

(gdb) bt
#0 0x40341754 in ioctl () from /lib/
#1 0x404bbe99 in vip_ioctl_wrapper (ops=VIPKL_OPEN_HCA, pi=0x0, pi_sz=0,
     po=0x0, po_sz=0) at vipkl_sys_user.c:54
#2 0x404bb886 in VIPKL_EQ_poll (usr_ctx=0x0, hca_hndl=0, vipkl_eq=0,
     eqe_p=0x40de3eb4) at vipkl_wrap_user.c:1676
#3 0x404bc0e1 in eq_poll_thread (eq_pollt_ptr=0x81377f8) at hobul.c:320
#4 0x4024aef6 in pthread_start_thread () from /lib/
#5 0x4034823a in clone () from /lib/

I'm not sure this is useful - can someone else reproduce this? If more
information is needed, let me know.