I think something got dropped by accident when you redid your patchset. 
There is a missing memset(hdr, 0, sizeof(*hdr)); for iscsi_eh_device_reset.



On 08/13/2009 02:58 AM, Hannes Reinecke wrote:
> @@ -2050,6 +2135,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
>               spin_lock_bh(&session->lock);
>               fail_scsi_task(task, DID_ABORT);
>               conn->tmf_state = TMF_INITIAL;
> +             memset(hdr, 0, sizeof(*hdr));
>               spin_unlock_bh(&session->lock);
>               iscsi_start_tx(conn);
>               goto success_unlocked;
> @@ -2060,6 +2146,7 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
>       case TMF_NOT_FOUND:
>               if (!sc->SCp.ptr) {
>                       conn->tmf_state = TMF_INITIAL;
> +                     memset(hdr, 0, sizeof(*hdr));
>                       /* task completed before tmf abort response */
>                       ISCSI_DBG_EH(session, "sc completed while abort in "
>                                             "progress\n");
> @@ -2796,6 +2883,7 @@ static void iscsi_start_session_recovery(struct 
> iscsi_session *session,
>       spin_lock_bh(&session->lock);
>       fail_scsi_tasks(conn, -1, DID_TRANSPORT_DISRUPTED);
>       fail_mgmt_tasks(session, conn);
> +     memset(&conn->tmhdr, 0, sizeof(conn->tmhdr));
>       spin_unlock_bh(&session->lock);
>       mutex_unlock(&session->eh_mutex);
>   }
> diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h
> index f2a2c11..dd0a52c 100644
> --- a/include/scsi/iscsi_proto.h
> +++ b/include/scsi/iscsi_proto.h
> @@ -279,6 +279,8 @@ struct iscsi_tm {
>   #define ISCSI_TM_FUNC_TARGET_COLD_RESET             7
>   #define ISCSI_TM_FUNC_TASK_REASSIGN         8
>
> +#define ISCSI_TM_FUNC_VALUE(hdr) ((hdr)->flags&  ISCSI_FLAG_TM_FUNC_MASK)
> +
>   /* SCSI Task Management Response Header */
>   struct iscsi_tm_rsp {
>       uint8_t opcode;


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