[mpich-discuss] "the supplied buffer contains invalid memory"

[Edric Ellis]

Hi all,

A user recently spotted an error like this:

3: node07: -2: Fatal error in MPI_Barrier: Other MPI error, error stack:
MPI_Barrier(406)..........................: MPI_Barrier(comm=0xc4000000) failed
MPIR_Barrier(76)..........................: 
MPIC_Sendrecv(161)........................: 
MPIC_Wait(321)............................: 
MPIDI_CH3_Progress_wait(199)..............: an error occurred while handling an event returned by MPIDU_Sock_Wait()
MPIDI_CH3I_Progress_handle_sock_event(422): 
MPIDU_Socki_handle_read(649)..............: the supplied buffer contains invalid memory (set=1,sock=16777221,errno=14:Bad address)

Running on 32 processes, 64-bit Linux, MPICH2-1.0.3. I realise this is a pretty old build of MPICH2 - does anyone have any clues as to what might cause this?

Cheers,

Edric.