Problems with agpgart on MVP3
On a RedHat 7.0 stock kernel, agpgart finds the AGP aperture the first time it's loaded, but if it's unloaded and reloaded, it gets confused and seems to think the aperture is located at 0. At this point, starting the Xserver (3.x or 4.x) or loading DRM drivers manually freezes the system. SysRq doesn't work. This is on an Epox MVPG3-M board (VIA MVP3 chipset) running an AMD K6-2/400 and a Matrox G200 accelerator. I've tried this on RedHat 6.2's most recent kernel as well as a few 2.4.0-testX kernels, and the result is readily reproducible on all versions of the kernel. matroxfb/vesafb don't seem to affect this problem either way. relevant dmesg output and lspci -v are attached. Please cc: me, as I'm not subscribed to this list. -ed 00:00.0 Host bridge: VIA Technologies, Inc. VT82C597 [Apollo VP3] (rev 04) Flags: bus master, medium devsel, latency 16 Memory at e000 (32-bit, prefetchable) Capabilities: [a0] AGP version 1.0 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3 AGP] (prog-if 00 [Normal decode]) Flags: bus master, 66Mhz, medium devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: c000-cfff Memory behind bridge: e400-e7ff Prefetchable memory behind bridge: e800-e8ff 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C596 ISA [Apollo PRO] (rev 06) Subsystem: VIA Technologies, Inc. VT82C596/A/B PCI to ISA Bridge Flags: bus master, stepping, medium devsel, latency 0 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 06) (prog-if 8a [Master SecP PriP]) Flags: bus master, medium devsel, latency 64 I/O ports at d000 00:07.2 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 02) (prog-if 00 [UHCI]) Subsystem: Unknown device 0925:1234 Flags: bus master, medium devsel, latency 64, IRQ 10 I/O ports at d400 00:07.3 Host bridge: VIA Technologies, Inc.: Unknown device 3050 Flags: medium devsel 00:08.0 SCSI storage controller: Initio Corporation 360P (rev 02) Subsystem: Unknown device 9292:0202 Flags: bus master, medium devsel, latency 64, IRQ 11 I/O ports at d800 Memory at ea00 (32-bit, non-prefetchable) Expansion ROM at e900 [disabled] 00:0a.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 06) Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128 Flags: bus master, slow devsel, latency 64, IRQ 12 I/O ports at dc00 Capabilities: [dc] Power Management version 1 00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS) Subsystem: Realtek Semiconductor Co., Ltd. RT8029(AS) Flags: medium devsel, IRQ 5 I/O ports at e000 01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP (rev 01) (prog-if 00 [VGA]) Subsystem: Matrox Graphics, Inc. Millennium G200 AGP Flags: bus master, medium devsel, latency 64, IRQ 11 Memory at e800 (32-bit, prefetchable) Memory at e400 (32-bit, non-prefetchable) Memory at e500 (32-bit, non-prefetchable) Capabilities: [dc] Power Management version 1 Capabilities: [f0] AGP version 1.0 Linux version 2.2.16-22 ([EMAIL PROTECTED]) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #1 Tue Aug 22 16:16:55 EDT 2000 Detected 400913 kHz processor. ide_setup: ide0=dma ide_setup: ide1=dma Console: colour VGA+ 80x25 Calibrating delay loop... 799.54 BogoMIPS Memory: 127376k/131072k available (1048k kernel code, 408k reserved, 1728k data, 64k init, 0k bigmem) Dentry hash table entries: 262144 (order 9, 2048k) Buffer cache hash table entries: 131072 (order 7, 512k) Page cache hash table entries: 32768 (order 5, 128k) VFS: Diskquotas version dquot_6.4.0 initialized CPU: L1 I Cache: 32K L1 D Cache: 32K CPU: AMD AMD-K6(tm) 3D processor stepping 0c Checking 386/387 coupling... OK, FPU using exception 16 error reporting. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.35a (19990819) Richard Gooch ([EMAIL PROTECTED]) PCI: PCI BIOS revision 2.10 entry at 0xfb4d0 PCI: Using configuration type 1 PCI: Probing PCI hardware PCI: 00:38 [1106/0596]: Work around ISA DMA hangs (00) Activating ISA DMA hang workarounds. Linux NET4.0 for Linux 2.2 Based upon Swansea University Computer Society NET3.039 NET4: Unix domain sockets 1.0 for Linux NET4.0. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP TCP: Hash tables configured (ehash 131072 bhash 65536) Linux IP multicast router 0.06 plus PIM-SM Initializing RT netlink socket Starting kswapd v 1.5 Detected PS/2 Mouse Port. Serial driver version 4.27 with MANY_PORTS MULTIPORT SHARE_IRQ enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A pty: 256 Unix98 ptys configured apm: BIOS version 1.2
Problems with agpgart on MVP3
On a RedHat 7.0 stock kernel, agpgart finds the AGP aperture the first time it's loaded, but if it's unloaded and reloaded, it gets confused and seems to think the aperture is located at 0. At this point, starting the Xserver (3.x or 4.x) or loading DRM drivers manually freezes the system. SysRq doesn't work. This is on an Epox MVPG3-M board (VIA MVP3 chipset) running an AMD K6-2/400 and a Matrox G200 accelerator. I've tried this on RedHat 6.2's most recent kernel as well as a few 2.4.0-testX kernels, and the result is readily reproducible on all versions of the kernel. matroxfb/vesafb don't seem to affect this problem either way. relevant dmesg output and lspci -v are attached. Please cc: me, as I'm not subscribed to this list. -ed 00:00.0 Host bridge: VIA Technologies, Inc. VT82C597 [Apollo VP3] (rev 04) Flags: bus master, medium devsel, latency 16 Memory at e000 (32-bit, prefetchable) Capabilities: [a0] AGP version 1.0 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598 [Apollo MVP3 AGP] (prog-if 00 [Normal decode]) Flags: bus master, 66Mhz, medium devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: c000-cfff Memory behind bridge: e400-e7ff Prefetchable memory behind bridge: e800-e8ff 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C596 ISA [Apollo PRO] (rev 06) Subsystem: VIA Technologies, Inc. VT82C596/A/B PCI to ISA Bridge Flags: bus master, stepping, medium devsel, latency 0 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586 IDE [Apollo] (rev 06) (prog-if 8a [Master SecP PriP]) Flags: bus master, medium devsel, latency 64 I/O ports at d000 00:07.2 USB Controller: VIA Technologies, Inc. VT82C586B USB (rev 02) (prog-if 00 [UHCI]) Subsystem: Unknown device 0925:1234 Flags: bus master, medium devsel, latency 64, IRQ 10 I/O ports at d400 00:07.3 Host bridge: VIA Technologies, Inc.: Unknown device 3050 Flags: medium devsel 00:08.0 SCSI storage controller: Initio Corporation 360P (rev 02) Subsystem: Unknown device 9292:0202 Flags: bus master, medium devsel, latency 64, IRQ 11 I/O ports at d800 Memory at ea00 (32-bit, non-prefetchable) Expansion ROM at e900 [disabled] 00:0a.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 06) Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128 Flags: bus master, slow devsel, latency 64, IRQ 12 I/O ports at dc00 Capabilities: [dc] Power Management version 1 00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS) Subsystem: Realtek Semiconductor Co., Ltd. RT8029(AS) Flags: medium devsel, IRQ 5 I/O ports at e000 01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP (rev 01) (prog-if 00 [VGA]) Subsystem: Matrox Graphics, Inc. Millennium G200 AGP Flags: bus master, medium devsel, latency 64, IRQ 11 Memory at e800 (32-bit, prefetchable) Memory at e400 (32-bit, non-prefetchable) Memory at e500 (32-bit, non-prefetchable) Capabilities: [dc] Power Management version 1 Capabilities: [f0] AGP version 1.0 Linux version 2.2.16-22 ([EMAIL PROTECTED]) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #1 Tue Aug 22 16:16:55 EDT 2000 Detected 400913 kHz processor. ide_setup: ide0=dma ide_setup: ide1=dma Console: colour VGA+ 80x25 Calibrating delay loop... 799.54 BogoMIPS Memory: 127376k/131072k available (1048k kernel code, 408k reserved, 1728k data, 64k init, 0k bigmem) Dentry hash table entries: 262144 (order 9, 2048k) Buffer cache hash table entries: 131072 (order 7, 512k) Page cache hash table entries: 32768 (order 5, 128k) VFS: Diskquotas version dquot_6.4.0 initialized CPU: L1 I Cache: 32K L1 D Cache: 32K CPU: AMD AMD-K6(tm) 3D processor stepping 0c Checking 386/387 coupling... OK, FPU using exception 16 error reporting. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.35a (19990819) Richard Gooch ([EMAIL PROTECTED]) PCI: PCI BIOS revision 2.10 entry at 0xfb4d0 PCI: Using configuration type 1 PCI: Probing PCI hardware PCI: 00:38 [1106/0596]: Work around ISA DMA hangs (00) Activating ISA DMA hang workarounds. Linux NET4.0 for Linux 2.2 Based upon Swansea University Computer Society NET3.039 NET4: Unix domain sockets 1.0 for Linux NET4.0. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP TCP: Hash tables configured (ehash 131072 bhash 65536) Linux IP multicast router 0.06 plus PIM-SM Initializing RT netlink socket Starting kswapd v 1.5 Detected PS/2 Mouse Port. Serial driver version 4.27 with MANY_PORTS MULTIPORT SHARE_IRQ enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A pty: 256 Unix98 ptys configured apm: BIOS version 1.2
