Date: Fri, 16 Mar 2018 05:28:46 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 211713] NVME controller failure: resetting (Samsung SM961 SSD Drives) Message-ID: <bug-211713-8-yzdUJ2beVL@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-211713-8@https.bugs.freebsd.org/bugzilla/> References: <bug-211713-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211713 --- Comment #51 from Warner Losh <imp@FreeBSD.org> --- You might try hw.nvme.enable_aborts=3D1 in loader.conf. This will enable ab= orting the command on timeouts when there's no fatal error indicated. This might h= elp. Also, r331046 has a workaround suggested by Jim Harris. IF there's no fatal error signaled, we'll poll the completion queue. If that works, we move on (with a loud printf that will likely have a performance issue, but we'll see it). If not, and no fatal error signaled and aborts are enabled, we'll abort the command. Otherwise we'll reset the card (the current behavior). I could never recreate this problem, despite buying the exact card (I think) that others have reported as being bad. So, if you can reproduce this probl= em, please try r331046 or later and let me know if that helps or not. --=20 You are receiving this mail because: You are the assignee for the bug.=
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