From mboxrd@z Thu Jan 1 00:00:00 1970 From: hch@infradead.org (Christoph Hellwig) Date: Sat, 15 Jul 2017 01:51:41 -0700 Subject: kernel BUG at nvme/host/pci.c In-Reply-To: <20170714170846.GA24365@localhost.localdomain> References: <28fcb21a-35b6-61c1-29e0-9adcc954c98c@pse-consulting.de> <20170710190818.GA13671@localhost.localdomain> <64da8c4d-2d69-22fa-06a0-aa4f11903e39@pse-consulting.de> <20170711194523.GD4604@localhost.localdomain> <458f2115-4a07-e23c-2f1f-a90a95668f74@pse-consulting.de> <20170712195012.GA8388@localhost.localdomain> <5ac79312-b9e3-7cbb-8a82-382fb99705b5@pse-consulting.de> <20170713134754.GD8388@localhost.localdomain> <39459fb9-ea2c-0718-10a1-a7e96b9ec21f@pse-consulting.de> <20170714170846.GA24365@localhost.localdomain> Message-ID: <20170715085141.GC25753@infradead.org> On Fri, Jul 14, 2017@01:08:47PM -0400, Keith Busch wrote: > > So LVM2 backed by md raid1 isn't compatible with newer hardware... Any > > suggestions? > > It's not that LVM2 or RAID isn't compatible. Either the IOMMU isn't > compatible if can use different page offsets for DMA addresses than the > physical aaddresses, or the driver for it is broken. The DMA addresses > in this mapped SGL look completely broken, at least, since the last 4 > entries are all the same address. That'll corrupt data. Given that this is a Xen system I wonder if swiotlb-xen is involved here, which does some odd chunking of dma translations? > > _______________________________________________ > Linux-nvme mailing list > Linux-nvme at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-nvme ---end quoted text--- From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: kernel BUG at nvme/host/pci.c Date: Sat, 15 Jul 2017 01:51:41 -0700 Message-ID: <20170715085141.GC25753@infradead.org> References: <28fcb21a-35b6-61c1-29e0-9adcc954c98c@pse-consulting.de> <20170710190818.GA13671@localhost.localdomain> <64da8c4d-2d69-22fa-06a0-aa4f11903e39@pse-consulting.de> <20170711194523.GD4604@localhost.localdomain> <458f2115-4a07-e23c-2f1f-a90a95668f74@pse-consulting.de> <20170712195012.GA8388@localhost.localdomain> <5ac79312-b9e3-7cbb-8a82-382fb99705b5@pse-consulting.de> <20170713134754.GD8388@localhost.localdomain> <39459fb9-ea2c-0718-10a1-a7e96b9ec21f@pse-consulting.de> <20170714170846.GA24365@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dWInn-0001vN-3A for xen-devel@lists.xenproject.org; Sat, 15 Jul 2017 08:51:51 +0000 Content-Disposition: inline In-Reply-To: <20170714170846.GA24365@localhost.localdomain> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Keith Busch Cc: xen-devel@lists.xenproject.org, Andreas Pflug , linux-nvme@lists.infradead.org List-Id: xen-devel@lists.xenproject.org T24gRnJpLCBKdWwgMTQsIDIwMTcgYXQgMDE6MDg6NDdQTSAtMDQwMCwgS2VpdGggQnVzY2ggd3Jv dGU6Cj4gPiBTbyBMVk0yIGJhY2tlZCBieSBtZCByYWlkMSBpc24ndCBjb21wYXRpYmxlIHdpdGgg bmV3ZXIgaGFyZHdhcmUuLi4gQW55Cj4gPiBzdWdnZXN0aW9ucz8KPiAKPiBJdCdzIG5vdCB0aGF0 IExWTTIgb3IgUkFJRCBpc24ndCBjb21wYXRpYmxlLiBFaXRoZXIgdGhlIElPTU1VIGlzbid0Cj4g Y29tcGF0aWJsZSBpZiBjYW4gdXNlIGRpZmZlcmVudCBwYWdlIG9mZnNldHMgZm9yIERNQSBhZGRy ZXNzZXMgdGhhbiB0aGUKPiBwaHlzaWNhbCBhYWRkcmVzc2VzLCBvciB0aGUgZHJpdmVyIGZvciBp dCBpcyBicm9rZW4uIFRoZSBETUEgYWRkcmVzc2VzCj4gaW4gdGhpcyBtYXBwZWQgU0dMIGxvb2sg Y29tcGxldGVseSBicm9rZW4sIGF0IGxlYXN0LCBzaW5jZSB0aGUgbGFzdCA0Cj4gZW50cmllcyBh cmUgYWxsIHRoZSBzYW1lIGFkZHJlc3MuIFRoYXQnbGwgY29ycnVwdCBkYXRhLgoKR2l2ZW4gdGhh dCB0aGlzIGlzIGEgWGVuIHN5c3RlbSBJIHdvbmRlciBpZiBzd2lvdGxiLXhlbiBpcyBpbnZvbHZl ZApoZXJlLCB3aGljaCBkb2VzIHNvbWUgb2RkIGNodW5raW5nIG9mIGRtYSB0cmFuc2xhdGlvbnM/ Cgo+IAo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCj4g TGludXgtbnZtZSBtYWlsaW5nIGxpc3QKPiBMaW51eC1udm1lQGxpc3RzLmluZnJhZGVhZC5vcmcK PiBodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW52bWUK LS0tZW5kIHF1b3RlZCB0ZXh0LS0tCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4u b3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK