Date: Fri, 17 Mar 2017 20:47:58 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 211713] NVME controller failure: resetting Message-ID: <bug-211713-8-tOz8kKk1Sc@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=211713 --- Comment #25 from Terry Kennedy <terry-freebsd@glaver.org> --- (In reply to Warner Losh from comment #24) I think there may be multiple bugs all getting lumped into this PR. On my Dell R710 (same exact CPUs, memory modules, and system chipset as the Supermicro X8DTH-iF where I get the hangs) with FreeBSD 10.3-STABLE, I get: (0:4) pool20:/sysprog/terry# dd if=/dev/nvd0 of=/dev/null bs=16m 7631+1 records in 7631+1 records out 128035676160 bytes transferred in 86.524463 secs (1479762738 bytes/sec) (0:5) pool20:/sysprog/terry# dd if=/dev/zero of=/dev/nvd0 bs=16m dd: /dev/nvd0: short write on character device dd: /dev/nvd0: end of device 7632+0 records in 7631+1 records out 128035676160 bytes transferred in 164.568004 secs (778010750 bytes/sec) (1:6) pool20:/sysprog/terry# pciconf -lbace nvme0 nvme0@pci0:5:0:0: class=0x010802 card=0xa801144d chip=0xa804144d rev=0x00 hdr=0x00 bar [10] = type Memory, range 64, base 0xdf2fc000, size 16384, enabled cap 01[40] = powerspec 3 supports D0 D3 current D0 cap 05[50] = MSI supports 32 messages, 64 bit cap 10[70] = PCI-Express 2 endpoint max data 256(256) FLR RO NS link x4(x4) speed 5.0(8.0) ASPM disabled(L1) cap 11[b0] = MSI-X supports 33 messages, enabled Table in map 0x10[0x3000], PBA in map 0x10[0x2000] ecap 0001[100] = AER 2 0 fatal 0 non-fatal 0 corrected ecap 0003[148] = Serial 1 0000000000000000 ecap 0004[158] = Power Budgeting 1 ecap 0019[168] = PCIe Sec 1 lane errors 0 ecap 0018[188] = LTR 1 ecap 001e[190] = unknown 1 This is in a PCIe 2 x4 slot, but the write speed matches the SM961 datasheet for the 128GB version - "700MB/Sec sequential write". Sequential read is probably being limited by PCIe 2 speeds, as the datasheet specifies "Up to 3100MB/Sec". These numbers are from "Samsung Rev 1.0, June 2016". I can't post the whole thing as it is marked Company Confidential. On the Supermicro X8DTH-iF where FreeBSD gets the controller resets, Arch Linux 2016.11.01 reads and writes the SM961 at approximately the same speeds as on the Dell R710, with no resets. -- You are receiving this mail because: You are the assignee for the bug.help
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