Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 26 Feb 2002 21:28:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 26 Feb 2002 21:27:59 -0500 Received: from [209.250.58.215] ([209.250.58.215]:35333 "EHLO hapablap.dyn.dhs.org") by vger.kernel.org with ESMTP id ; Tue, 26 Feb 2002 21:27:37 -0500 Date: Tue, 26 Feb 2002 20:27:17 -0600 From: Steven Walter To: Tom Eastep Cc: linux-kernel@vger.kernel.org Subject: Re: VIA Northbridge Workaround in 2.4.18 Causing Video Problems Message-ID: <20020226202717.A30609@hapablap.dyn.dhs.org> Mail-Followup-To: Steven Walter , Tom Eastep , linux-kernel@vger.kernel.org In-Reply-To: <20020226195730.BD7691B93C@mail.shorewall.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20020226195730.BD7691B93C@mail.shorewall.net>; from teastep@shorewall.net on Tue, Feb 26, 2002 at 11:57:30AM -0800 X-Uptime: 3:56pm up 17:20, 1 user, load average: 1.23, 1.04, 1.01 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I second this. Experienced almost exactly the same thing with a 2.4.18-pre2 kernel. Removing my board from the arch/i386/kernel/pci-pc.c file (I believe) fixed the problem. On Tue, Feb 26, 2002 at 11:57:30AM -0800, Tom Eastep wrote: > > > [1.] One line summary of the problem: > > The VIA Northbridge workaround in 2.4.18 (arch/i386/kernel/pci-pc.c:pci_fixup_via_northbridge_bug) > is causing Video Problems on one of my systems. > > [2.] Full description of the problem/report: > > System is an Athlon 1.2GZ with VIA KT133 Northbridge and VT82C686 Southbridge. This is a > Compaq Presario with onboard S3 Savage Video that uses 8 or 16mb of system RAM as Video > RAM. Prior to my installing 2.4.18, I have experienced none of the Athlon/VIA problems > that have plagued other users (including the one addressed by the workaround). > > With 2.4.18: > > a) VGA console goes berserk during boot (random fixed pattern appears and console is unusable). > b) Vesafb console and X (XF86_FBDEV) -- Heavy memory access (either from CPU or disk activity) > produces flicker and horizontal white "noise" on the Display. The amount of flicker and > noise is proportional to memory activity. > > I have definitely determined that the problem is with the VIA Workaround as > the symptoms are eliminated when I disable the workaround (see hack below). > > [3.] Keywords (i.e., modules, networking, kernel): > Video VIA Workaround > [4.] Kernel version (from /proc/version): > Linux version 2.4.18 (teastep@ursa.shorewall.net) (gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98)) #2 Tue Feb 26 07:24:29 PST 2002 > > [5.] Output of Oops.. message (if applicable) with symbolic information > resolved (see Documentation/oops-tracing.txt) > N/A > [6.] A small shell script or example program which triggers the > problem (if possible) > N/A > [7.] Environment > [7.1.] Software (add the output of the ver_linux script here) > > Linux ursa.shorewall.net 2.4.18 #2 Tue Feb 26 07:24:29 PST 2002 i686 unknown > > Gnu C 2.96 > Gnu make 3.79.1 > util-linux 2.11f > mount 2.11g > modutils 2.4.13 > e2fsprogs 1.23 > PPP 2.4.1 > isdn4k-utils 3.1pre1 > Linux C Library 2.2.4 > Dynamic linker (ldd) 2.2.4 > Procps 2.0.7 > Net-tools 1.60 > Console-tools 0.3.3 > Sh-utils 2.0.11 > Modules Loaded via82cxxx_audio ac97_codec uart401 sound parport_pc lp parport tulip usb-storage nls_iso8859-1 nls_cp437 vfat fat mousedev keybdev hid input usb-uhci usbcore > > [7.2.] Processor information (from /proc/cpuinfo): > processor : 0 > vendor_id : AuthenticAMD > cpu family : 6 > model : 4 > model name : AMD Athlon(tm) Processor > stepping : 2 > cpu MHz : 1202.134 > cache size : 256 KB > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 1 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov > pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow > bogomips : 2398.61 > [7.3.] Module information (from /proc/modules): > via82cxxx_audio 18048 8 (autoclean) > ac97_codec 9440 0 (autoclean) [via82cxxx_audio] > uart401 6368 0 (autoclean) [via82cxxx_audio] > sound 55884 0 (autoclean) [via82cxxx_audio uart401] > parport_pc 25896 1 (autoclean) > lp 6240 0 (autoclean) > parport 24576 1 (autoclean) [parport_pc lp] > tulip 39680 1 > usb-storage 22140 0 > nls_iso8859-1 2816 1 (autoclean) > nls_cp437 4320 1 (autoclean) > vfat 9852 1 (autoclean) > fat 31096 0 (autoclean) [vfat] > mousedev 4128 1 > keybdev 1856 0 (unused) > hid 12992 0 (unused) > input 3264 0 [mousedev keybdev hid] > usb-uhci 21316 0 (unused) > usbcore 49472 1 [usb-storage hid usb-uhci] > [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem) > 0000-001f : dma1 > 0020-003f : pic1 > 0040-005f : timer > 0060-006f : keyboard > 0070-007f : rtc > 0080-008f : dma page reg > 00a0-00bf : pic2 > 00c0-00df : dma2 > 00f0-00ff : fpu > 0170-0177 : ide1 > 01f0-01f7 : ide0 > 0376-0376 : ide1 > 0378-037a : parport0 > 03c0-03df : vesafb > 03f6-03f6 : ide0 > 03f8-03ff : serial(auto) > 0cf8-0cff : PCI conf1 > 1000-10ff : Lite-On Communications Inc LNE100TX > 1000-10ff : tulip > 1400-14ff : VIA Technologies, Inc. AC97 Audio Controller > 1400-14ff : via82cxxx_audio > 1800-183f : PCTel Inc HSP MicroModem 56 > 1840-185f : VIA Technologies, Inc. UHCI USB > 1840-185f : usb-uhci > 1860-187f : VIA Technologies, Inc. UHCI USB (#2) > 1860-187f : usb-uhci > 1880-188f : VIA Technologies, Inc. Bus Master IDE > 1880-1887 : ide0 > 1888-188f : ide1 > 1890-1893 : VIA Technologies, Inc. AC97 Audio Controller > 1890-1893 : via82cxxx_audio > 1894-1897 : VIA Technologies, Inc. AC97 Audio Controller > 1894-1897 : via82cxxx_audio > ec00-ec0f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] > ee00-eeff : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] > CPU0 > 0: 120510 XT-PIC timer > 1: 6 XT-PIC keyboard > 2: 0 XT-PIC cascade > 5: 4826 XT-PIC eth0 > 8: 1 XT-PIC rtc > 9: 2 XT-PIC acpi > 10: 8473 XT-PIC via82cxxx > 11: 10879 XT-PIC usb-uhci, usb-uhci > 14: 12635 XT-PIC ide0 > 15: 10 XT-PIC ide1 > NMI: 0 > ERR: > [7.5.] PCI information ('lspci -vvv' as root) > 00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 81) > Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 0 > Region 0: Memory at 90000000 (32-bit, prefetchable) [size=64M] > Capabilities: [a0] AGP version 2.0 > Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2 > Command: RQ=0 SBA- AGP- 64bit- FW- Rate= > Capabilities: [c0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (prog-if 00 [Normal decode]) > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 0 > Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 > Memory behind bridge: 80000000-800fffff > Prefetchable memory behind bridge: 88000000-8fffffff > BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B- > Capabilities: [80] Power Management version 2 > Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:04.0 Modem: PCTel Inc HSP MicroModem 56 (rev 02) (prog-if 01 [Hayes/16450]) > Subsystem: PCTel Inc: Unknown device 0001 > Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Interrupt: pin A routed to IRQ 10 > Region 0: I/O ports at 1800 [size=64] > Capabilities: [40] Power Management version 2 > Flags: PMEClk- DSI+ D1- D2+ AuxCurrent=55mA PME(D0+,D1-,D2+,D3hot+,D3cold+) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:05.0 Ethernet controller: Lite-On Communications Inc LNE100TX (rev 20) > Subsystem: Netgear FA310TX > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- Latency: 66 > Interrupt: pin A routed to IRQ 5 > Region 0: I/O ports at 1000 [size=256] > Region 1: Memory at a0000000 (32-bit, non-prefetchable) [size=256] > Expansion ROM at [disabled] [size=256K] > > 00:14.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22) > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 0 > > 00:14.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 10) (prog-if 8a [Master SecP PriP]) > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- Latency: 64 > Region 4: I/O ports at 1880 [size=16] > Capabilities: [c0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:14.2 USB Controller: VIA Technologies, Inc. UHCI USB (rev 10) (prog-if 00 [UHCI]) > Subsystem: Unknown device 0925:1234 > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 66, cache line size 08 > Interrupt: pin D routed to IRQ 11 > Region 4: I/O ports at 1840 [size=32] > Capabilities: [80] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:14.3 USB Controller: VIA Technologies, Inc. UHCI USB (rev 10) (prog-if 00 [UHCI]) > Subsystem: Unknown device 0925:1234 > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 66, cache line size 08 > Interrupt: pin D routed to IRQ 11 > Region 4: I/O ports at 1860 [size=32] > Capabilities: [80] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:14.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30) > Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- Capabilities: [68] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 00:14.5 Multimedia audio controller: VIA Technologies, Inc. AC97 Audio Controller (rev 20) > Subsystem: Compaq Computer Corporation: Unknown device 003d > Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Interrupt: pin C routed to IRQ 10 > Region 0: I/O ports at 1400 [size=256] > Region 1: I/O ports at 1890 [size=4] > Region 2: I/O ports at 1894 [size=4] > Capabilities: [c0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > > 01:00.0 VGA compatible controller: S3 Inc.: Unknown device 8a26 (prog-if 00 [VGA]) > Subsystem: Compaq Computer Corporation: Unknown device 005b > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- > Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Latency: 64 (1000ns min, 63750ns max), cache line size 08 > Interrupt: pin A routed to IRQ 3 > Region 0: Memory at 80000000 (32-bit, non-prefetchable) [size=512K] > Region 1: Memory at 88000000 (32-bit, prefetchable) [size=128M] > Expansion ROM at [disabled] [size=64K] > Capabilities: [dc] Power Management version 2 > Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [80] AGP version 2.0 > Status: RQ=31 SBA- 64bit- FW- Rate=x1,x2 > Command: RQ=0 SBA- AGP- 64bit- FW- Rate= > > [7.6.] SCSI information (from /proc/scsi/scsi) > Attached devices: > Host: scsi0 Channel: 00 Id: 00 Lun: 00 > Vendor: COMPAQ Model: DVD-ROM DRD8120B Rev: 1.10 > Type: CD-ROM ANSI SCSI revision: 02 > Host: scsi0 Channel: 00 Id: 01 Lun: 00 > Vendor: LG Model: CD-RW CED-8120B Rev: 1.09 > Type: CD-ROM ANSI SCSI revision: 02 > Host: scsi1 Channel: 00 Id: 00 Lun: 00 > Vendor: Photo Po Model: rt 7700# Rev: > Type: Direct-Access ANSI SCSI revision: 02 > Host: scsi1 Channel: 00 Id: 00 Lun: 01 > Vendor: Photo Po Model: rt 7700# Rev: > Type: Direct-Access ANSI SCSI revision: 02 > [7.7.] Other information that might be relevant to the problem > (please look in /proc and include all information that you > think to be relevant): > [X.] Other notes, patches, fixes, workarounds: > I'm currently getting around the problem with the following hack: > > diff -u arch/i386/kernel/pci-pc.orig arch/i386/kernel/pci-pc.c > --- arch/i386/kernel/pci-pc.orig Tue Feb 26 07:12:50 2002 > +++ arch/i386/kernel/pci-pc.c Tue Feb 26 07:24:23 2002 > @@ -1144,7 +1144,7 @@ > { PCI_FIXUP_HEADER, PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, pci_fixup_latency }, > { PCI_FIXUP_HEADER, PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5598, pci_fixup_latency }, > { PCI_FIXUP_HEADER, PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, pci_fixup_piix4_acpi }, > - { PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, pci_fixup_via_northbridge_bug }, > +/* { PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, pci_fixup_via_northbridge_bug }, */ > { PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8622, pci_fixup_via_northbridge_bug }, > { PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, pci_fixup_via_northbridge_bug }, > { PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8367_0, pci_fixup_via_northbridge_bug }, > > -Tom > -- > Tom Eastep \ Shorewall - iptables made easy > AIM: tmeastep \ http://www.shorewall.net > ICQ: #60745924 \ teastep@shorewall.net > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- -Steven In a time of universal deceit, telling the truth is a revolutionary act. -- George Orwell He's alive. He's alive! Oh, that fellow at RadioShack said I was mad! Well, who's mad now? -- Montgomery C. Burns - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/