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Date:      Wed, 17 Oct 2018 05:12:39 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 211713] NVME controller failure: resetting (Samsung SM961 SSD Drives)
Message-ID:  <bug-211713-227-xzkW0lRTpP@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-211713-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-211713-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211713

--- Comment #64 from Warner Losh <imp@FreeBSD.org> ---
'sync' will force all the dirty buffers to be scheduled in the nvme control=
ler
and won't return until they are complete. There are no other 'flush' operat=
ions
needed as the errors are that we suspend while we have pending I/O in the n=
vme
controller. That might need to be attended to, but it isn't currently.

But a suspend / resume bug is very different than this bug. Please file a n=
ew
bug to track that. This bug is, during normal operations, something bad
happens, and we stop being able to talk to the NVMe drive and error recover=
y is
insufficient to cope.

--=20
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