I've just been looking at a colleague's Dell Latitude C610,
using a Radeon Mobility 6 LY.
With Friday's CVS built X got stuck with a blank screen during startup,
hogging the CPU.
I tracked the problem down to pciSetBusAccess, where it got stuck in
a loop. This patch allows the server to detect and abort the loop,
allowing the server to start, although switching back to the console
shows corrupt text fonts (I see other reports of console problems with
this chip, so that may or may not be related).
I've attached the lspci -nv output in case that contributed to the
confusing pci information.
----------------------------------------------------------
Index: xc/programs/Xserver/hw/xfree86/common/xf86pciBus.c
===================================================================
RCS file:
/home/CVS/XFree86/xc/programs/Xserver/hw/xfree86/common/xf86pciBus.c,v
retrieving revision 3.52
diff -u -r3.52 xf86pciBus.c
--- xc/programs/Xserver/hw/xfree86/common/xf86pciBus.c 2002/05/02
15:20:19 3.52
+++ xc/programs/Xserver/hw/xfree86/common/xf86pciBus.c 2002/06/25
11:26:58
@@ -702,6 +702,10 @@
if (ptr->enable_f) ptr->enable_f(ptr);
ptr->primary->current = ptr;
}
+ if (ptr->primary == ptr) {
+ ErrorF("pciSetBusAccess: caught loop, bailing out\n");
+ continue;
+ }
ptr = ptr->primary;
}
}
----------------------------------------------------------
--
Dr. Andrew C. Aitchison Computer Officer, DPMMS, Cambridge
[EMAIL PROTECTED] http://www.dpmms.cam.ac.uk/~werdna
00:00.0 Class 0600: 8086:3575 (rev 04)
Flags: bus master, fast devsel, latency 0
Memory at d0000000 (32-bit, prefetchable)
Capabilities: [40] #09 [1105]
Capabilities: [a0] AGP version 2.0
00:01.0 Class 0604: 8086:3576 (rev 04)
Flags: bus master, 66Mhz, fast devsel, latency 32
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Memory behind bridge: fc000000-fdffffff
Prefetchable memory behind bridge: e0000000-e7ffffff
00:1d.0 Class 0c03: 8086:2482 (rev 02)
Subsystem: 8086:4541
Flags: bus master, medium devsel, latency 0, IRQ 11
I/O ports at bf80
00:1e.0 Class 0604: 8086:2448 (rev 42)
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=10, sec-latency=32
I/O behind bridge: 0000e000-0000ffff
Memory behind bridge: f4000000-fbffffff
00:1f.0 Class 0601: 8086:248c (rev 02)
Flags: bus master, medium devsel, latency 0
00:1f.1 Class 0101: 8086:248a (rev 02) (prog-if 8a [Master SecP PriP])
Subsystem: 8086:4541
Flags: bus master, medium devsel, latency 0
I/O ports at 01f0
I/O ports at 03f4
I/O ports at 0170
I/O ports at 0374
I/O ports at bfa0
00:1f.5 Class 0401: 8086:2485 (rev 02)
Subsystem: 1013:5959
Flags: bus master, medium devsel, latency 0, IRQ 11
I/O ports at d800
I/O ports at dc80
00:1f.6 Class 0703: 8086:2486 (rev 02)
Subsystem: 134d:4c21
Flags: bus master, medium devsel, latency 0, IRQ 11
I/O ports at d400
I/O ports at dc00
01:00.0 Class 0300: 1002:4c59
Subsystem: 1028:00e3
Flags: bus master, VGA palette snoop, stepping, 66Mhz, medium devsel,
latency 32, IRQ 11
Memory at e0000000 (32-bit, prefetchable)
I/O ports at c000
Memory at fcff0000 (32-bit, non-prefetchable)
Capabilities: [58] AGP version 2.0
Capabilities: [50] Power Management version 2
02:00.0 Class 0200: 10b7:9200 (rev 78)
Subsystem: 1028:00e3
Flags: bus master, medium devsel, latency 32, IRQ 11
I/O ports at ec80
Memory at f8fffc00 (32-bit, non-prefetchable)
Expansion ROM at f9000000 [disabled]
Capabilities: [dc] Power Management version 2
02:01.0 Class 0607: 104c:ac51
Subsystem: 104c:ac51
Flags: bus master, medium devsel, latency 32
Bus: primary=00, secondary=00, subordinate=00, sec-latency=32
I/O window 0: 00000000-00000003
I/O window 1: 00000000-00000003
16-bit legacy interface ports at 0007
02:01.1 Class 0607: 104c:ac51
Subsystem: 104c:ac51
Flags: bus master, medium devsel, latency 32
Bus: primary=00, secondary=00, subordinate=00, sec-latency=32
I/O window 0: 00000000-00000003
I/O window 1: 00000000-00000003
16-bit legacy interface ports at 0007
