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Date: Thu, 17 Nov 2016 17:53:31 -0800 From: Dan Williams <dan.j.williams@...el.com> To: John Garry <john.garry@...wei.com> Cc: jejb@...ux.vnet.ibm.com, "Martin K. Petersen" <martin.petersen@...cle.com>, wangyijing <wangyijing@...wei.com>, linux-scsi <linux-scsi@...r.kernel.org>, John Garry <john.garry2@...l.dcu.ie>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, linuxarm@...wei.com, lindar_liu@...sh.com, Tejun Heo <tj@...nel.org>, Jinpu Wang <jinpu.wang@...fitbricks.com> Subject: Re: [RFC PATCH] scsi: libsas: fix WARN on device removal On Thu, Nov 17, 2016 at 7:23 AM, John Garry <john.garry@...wei.com> wrote: > On 11/11/2016 08:49, wangyijing wrote: >>>>> >>>>> I have not seen the flutter issue. I am just trying to solve the >>>>> horrible WARN dump. >>>>> However I do understand that there may be a issue related to how we >>>>> queue the events; there was a recent attempt to fix this, but it came to >>>>> nothing: >>>>> https://www.spinics.net/lists/linux-scsi/msg99991.html >>>> >>>> >>>> We found libsas hotplug several problems: >>>> 1. sysfs warning calltrace(like the case you found); >>> >>> >>> Maybe you can then review my patch. >> >> >> I did it, I think your solution to fix the sysfs calltrace issue is ok, >> and what I worried about is we still need to fix >> the rest issues. So it's better if we could fix all issues one time. >> > > @Maintainers, would you be willing to accept this patch as an interim fix > for the dastardly WARN while we try to fix the flutter issue? To me this adds a bug to quiet a benign, albeit noisy, warning.
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