[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Is: graphics corruption with 'xen: Support Xen pv-domains using PAT." Was:Re: [BUG] Characters on the screen are broken on Linux >= 3.19 with VT-d enabled
æ äï2015-06-15 æ 14:55 -0400ïKonrad Rzeszutek Wilk æåï > On Sat, Jun 13, 2015 at 12:43:14AM +0800, Ting-Wei Lan wrote: > > When using Linux >= 3.19 as the dom0 kernel, characters on the > > screen become > > broken after the graphic driver is loaded. The commit that breaks > > it is > > (found by git bisect): > > > > > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/com > > mit/?id=47591df > > Lets CC Juergen > > > > > > Screenshot when the system run in single user mode: > > > > https://bugs.freedesktop.org/attachment.cgi?id=115079 > > > > > > If it continues booting, the dom0 can crash after GDM tries to > > start Xorg. > > Some messages are showed when Xorg is running: > > > > [ 80.636446] [drm] stuck on render ring > > [ 80.640041] [drm] GPU HANG: ecode 5:0:0x7fbfff08, in Xwayland > > [2112], > > reason: Ring hung, action: reset > > > > > > I cannot run 'dmesg' and 'xl dmesg' because the dom0 is unusable > > after Xorg > > runs, so I attach the serial console log instead. It was tested on > > Xen > > 4.5.1-rc2 and Linux 4.1-rc7: > > > > https://gist.github.com/lantw44/715160f1a53967a1627b > > > > > > This problem was reported to DRM/Intel, but they think it is not > > their bug. > > I also reported it to kernel bugzilla, but there is no response: > > > > https://bugs.freedesktop.org/show_bug.cgi?id=90037 > > https://bugzilla.kernel.org/show_bug.cgi?id=97421 > > > > > > This problem only happens when VT-d is enabled. If I add > > 'iommu=off' to Xen > > boot arguments, there will be no problem. It seems it only happens > > on > > specific hardware. Two machines are listed below, one with the > > problem and > > one without the problem. > > Could you also include your .config file please? > My .config for Linux 4.0.4 https://gist.github.com/lantw44/5cbfc6e6052423bec910 It should be the same as the kernel provided by Fedora 22 except for CONFIG_XEN_PVH=y. > > > > > > The machine that has this problem: > > > > (Software) > > Xen 4.4.2, 4.5.0, 4.5.1-rc2 > > Linux 3.19.2, 3.19.3, 3.19.4, 4.0, 4.0.3, 4.0.4, 4.1-rc7 > > > > (CPU and GPU) > > Intel Core i5 CPU 650 @ 3.20GHz > > Intel Ironlake Desktop > > > > (Motherboard) > > ASUSTeK Computer INC. P7H55D-M EVO > > > > (lspci output) > > 00:00.0 Host bridge: Intel Corporation Core Processor DRAM > > Controller (rev > > 12) > > 00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express > > x16 Root > > Port (rev 12) > > 00:02.0 VGA compatible controller: Intel Corporation Core Processor > > Integrated Graphics Controller (rev 12) > > 00:16.0 Communication controller: Intel Corporation 5 Series/3400 > > Series > > Chipset HECI Controller (rev 06) > > 00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series > > Chipset USB2 > > Enhanced Host Controller (rev 06) > > 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series > > Chipset High > > Definition Audio (rev 06) > > 00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset > > PCI > > Express Root Port 1 (rev 06) > > 00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset > > PCI > > Express Root Port 2 (rev 06) > > 00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset > > PCI > > Express Root Port 3 (rev 06) > > 00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset > > PCI > > Express Root Port 4 (rev 06) > > 00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset > > PCI > > Express Root Port 5 (rev 06) > > 00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset > > PCI > > Express Root Port 6 (rev 06) > > 00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series > > Chipset USB2 > > Enhanced Host Controller (rev 06) > > 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev a6) > > 00:1f.0 ISA bridge: Intel Corporation 5 Series Chipset LPC > > Interface > > Controller (rev 06) > > 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series > > Chipset 6 > > port SATA AHCI Controller (rev 06) > > 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus > > Controller (rev 06) > > 01:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host > > Controller > > (rev 03) > > 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. > > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 03) > > 03:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA > > II / PATA > > Controller (rev b2) > > 05:00.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6315 Series > > Firewire > > Controller > > 06:00.0 USB controller: Renesas Technology Corp. uPD720202 USB 3.0 > > Host > > Controller (rev 02) > > 3f:00.0 Host bridge: Intel Corporation Core Processor QuickPath > > Architecture > > Generic Non-core Registers (rev 02) > > 3f:00.1 Host bridge: Intel Corporation Core Processor QuickPath > > Architecture > > System Address Decoder (rev 02) > > 3f:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 > > (rev 02) > > 3f:02.1 Host bridge: Intel Corporation 1st Generation Core i3/5/7 > > Processor > > QPI Physical 0 (rev 02) > > 3f:02.2 Host bridge: Intel Corporation 1st Generation Core i3/5/7 > > Processor > > Reserved (rev 02) > > 3f:02.3 Host bridge: Intel Corporation 1st Generation Core i3/5/7 > > Processor > > Reserved (rev 02) > > > > > > The machine that works fine: > > > > (Software) > > Xen 4.4.1, 4.4.2 > > Linux 3.19.1, 3.19.2, 3.19.3, 3.19.7, 4.0.4 > > > > (CPU and GPU) > > Intel Core i7-2600 CPU @ 3.40GHz > > Intel Sandybridge Desktop > > > > (Motherboard) > > ASUSTeK Computer INC. P8Z68-M PRO > > > > (lspci output) > > 00:00.0 Host bridge: Intel Corporation 2nd Generation Core > > Processor Family > > DRAM Controller (rev 09) > > 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation > > Core > > Processor Family PCI Express Root Port (rev 09) > > 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation > > Core > > Processor Family Integrated Graphics Controller (rev 09) > > 00:16.0 Communication controller: Intel Corporation 6 Series/C200 > > Series > > Chipset Family MEI Controller #1 (rev 04) > > 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series > > Chipset > > Family USB Enhanced Host Controller #2 (rev 05) > > 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series > > Chipset Family > > High Definition Audio Controller (rev 05) > > 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset > > Family > > PCI Express Root Port 1 (rev b5) > > 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset > > Family > > PCI Express Root Port 5 (rev b5) > > 00:1c.5 PCI bridge: Intel Corporation 82801 PCI Bridge (rev b5) > > 00:1c.6 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset > > Family > > PCI Express Root Port 7 (rev b5) > > 00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset > > Family > > PCI Express Root Port 8 (rev b5) > > 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series > > Chipset > > Family USB Enhanced Host Controller #1 (rev 05) > > 00:1f.0 ISA bridge: Intel Corporation Z68 Express Chipset Family > > LPC > > Controller (rev 05) > > 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series > > Chipset > > Family SATA AHCI Controller (rev 05) > > 00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset > > Family SMBus > > Controller (rev 05) > > 01:00.0 VGA compatible controller: NVIDIA Corporation G96 [GeForce > > 9400 GT] > > (rev a1) > > 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. > > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06) > > 04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to > > PCI Bridge > > (rev 01) > > 06:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA > > Controller (rev 01) > > 07:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed > > USB Host > > Controller > > > > > > I still remember that there was a similar problem found two years > > ago on the > > same hardware with similar broken screen output and it also crashed > > after > > Xorg was started, but I cannot confirm that they are the same > > problems. I > > don't know whether error messages are simliar. > > > > The old problem happens on Linux 3.7 ~ 3.10 with VT-d enabled. It > > only > > happened when not using Xen, so I added 'intel_iommu=off' to Linux > > boot > > arguments to workaround it. > > > > The problem I report here happens on Linux >= 3.19 with VT-d > > enabled. It > > only happens when using Xen, so I add 'iommu=off' to Xen boot > > arguments to > > workaround it. > > > > _______________________________________________ > > Xen-devel mailing list > > Xen-devel@xxxxxxxxxxxxx > > http://lists.xen.org/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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