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  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]
Date:   Fri, 28 Aug 2020 08:51:55 -0700
From:   Keith Busch <kbusch@...nel.org>
To:     Tong Zhang <ztong0001@...il.com>
Cc:     axboe@...com, hch@....de, sagi@...mberg.me,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] nvme-pci: cancel nvme device request before disabling

On Fri, Aug 28, 2020 at 10:17:08AM -0400, Tong Zhang wrote:
> This patch addresses an irq free warning and null pointer dereference
> error problem when nvme devices got timeout error during initialization.
> This problem happens when nvme_timeout() function is called while
> nvme_reset_work() is still in execution. This patch fixed the problem by
> setting flag of the problematic request to NVME_REQ_CANCELLED before
> calling nvme_dev_disable() to make sure __nvme_submit_sync_cmd() returns
> an error code and let nvme_submit_sync_cmd() fail gracefully.
> The following is console output.

Thanks, this looks good to me.

Reviewed-by: Keith Busch <kbusch@...nel.org>

Powered by blists - more mailing lists