Re: target crashes with vSphere 6 hosts

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> I have tried a large number of other hosts and they all act the same
> way regardless of hardware.  ESXi <6 is no problem, but 6 and newer
> crash the filer very quickly.

You're crashing because of

Jan 24 10:02:09 dracofiler kernel: kernel BUG at
drivers/scsi/qla2xxx/qla_target.c:3105!

which is the BUG_ON in

void qlt_free_cmd(struct qla_tgt_cmd *cmd)
{
        struct qla_tgt_sess *sess = cmd->sess;

        ql_dbg(ql_dbg_tgt, cmd->vha, 0xe074,
            "%s: se_cmd[%p] ox_id %04x\n",
            __func__, &cmd->se_cmd,
            be16_to_cpu(cmd->atio.u.isp24.fcp_hdr.ox_id));

        BUG_ON(cmd->cmd_in_wq);

It seems we're freeing a command before we process it.

what logging do you have from target or qla2xxx before you hit the
crash?  I'm wondering why the initiator is aborting commands (although
we still shouldn't crash even if it does abort commands).

You could try applying upstream commit 193b50b9d54a ("qla2xxx: Replace
QLA_TGT_STATE_ABORTED with a bit.") which seems like it might be
related, though I'm not sure whether it really will help.

 - R.
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