linux-kernel - Re: [PATCH 0/4] Rework NVMe abort handling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20180719134203.GA15212@lst.de>
Date:   Thu, 19 Jul 2018 15:42:03 +0200
From:   Christoph Hellwig <hch@....de>
To:     Johannes Thumshirn <jthumshirn@...e.de>
Cc:     Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>,
        Keith Busch <keith.busch@...el.com>,
        James Smart <james.smart@...adcom.com>,
        Hannes Reinecke <hare@...e.de>, Ewan Milne <emilne@...hat.com>,
        Max Gurtovoy <maxg@...lanox.com>,
        Linux NVMe Mailinglist <linux-nvme@...ts.infradead.org>,
        Linux Kernel Mailinglist <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/4] Rework NVMe abort handling

On Thu, Jul 19, 2018 at 03:28:34PM +0200, Johannes Thumshirn wrote:
> PCI currently is the only transport we have which is doing more than
> queueing a transport reset but trying to abort the command first.
> 
> This series brings the other transports we currently have up to the
> same level.

Without even looking at the code yet:  why?  The nvme abort isn't
very useful, and due to the lack of ordering between different
queues almost harmful on fabrics.  What problem do you try to
solve?