Re: cx88 pci_abort messages
On Oct 8, 2007, at 3:44 AM, Gerd Hoffmann wrote: Scott wrote: On Sat, 2007-10-06 at 12:48 -0600, Robert Hancock wrote: Oct 2 21:59:32 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:32 htpc cx88[0]/2-mpeg: general errors: 0x0008000 I assumed it was an interrupt issue based on the 'irq mepg' error, not a DMA issue. It's a DMA issue. The chip raised an irq to signal the error condition to the driver, thats why it is printed by the irq handler. Happened while streamimg mpeg data. Havn't looked at the code for years now, but IIRC the 0x80 is the raw error code from some status register, pci_abort is the error bit in clear text, meaning some PCI DMA transfer was aborted. No idea why though ... I went through and did the basics. Disabled SMP (it's a core 2 duo cpu), tried with noapic, nolapic settings, tried with pci=irqroute, and tried with acpi=off. Poking through the module code I noticd in cx88-mpeg.c the irq_debug option. I think this is the debug switch I want so I'll try to gather more info this week. At the very least it looks like it will help me walk through the code to get a better idea of what's going on. -- Scott - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: cx88 pci_abort messages
Scott wrote: > On Sat, 2007-10-06 at 12:48 -0600, Robert Hancock wrote: Oct 2 21:59:32 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:32 htpc cx88[0]/2-mpeg: general errors: 0x0008000 > I assumed it was an interrupt issue based on the 'irq mepg' error, not a > DMA issue. It's a DMA issue. The chip raised an irq to signal the error condition to the driver, thats why it is printed by the irq handler. Happened while streamimg mpeg data. Havn't looked at the code for years now, but IIRC the 0x80 is the raw error code from some status register, pci_abort is the error bit in clear text, meaning some PCI DMA transfer was aborted. No idea why though ... cheers, Gerd - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: cx88 pci_abort messages
On Sat, 2007-10-06 at 12:48 -0600, Robert Hancock wrote: > > On Oct 4, 2007, at 11:52 AM, Scott wrote: > > > >> I'm having what I think is a PCI bus problem. > >> > >> I have a ASUS P5B Intel 965 motherboard and a DVICO Fusion HDTV5 RT > >> adapter on the PCI bus. When this adapter is recording (anything) I see > >> Oct 2 21:59:12 htpc cx88[0]: irq mpeg [0x8] pci_abort* > >> Oct 2 21:59:12 htpc cx88[0]/2-mpeg: general errors: 0x0008 > >> Oct 2 21:59:20 htpc cx88[0]: irq mpeg [0x8] pci_abort* > >> Oct 2 21:59:20 htpc cx88[0]/2-mpeg: general errors: 0x0008 > >> Oct 2 21:59:32 htpc cx88[0]: irq mpeg [0x8] pci_abort* > >> Oct 2 21:59:32 htpc cx88[0]/2-mpeg: general errors: 0x0008000 > > > PCI aborts won't have anything to do with interrupts. It's a PCI DMA > transfer that either the initiator (here, the TV card) or the target > (the chipset host bridge) decided to puke on for some reason. Possibly > parity errors? I assumed it was an interrupt issue based on the 'irq mepg' error, not a DMA issue. Any suggestions on how to log more information about PCI DMA events on a system wide basis? I've seen this since 2.6.18. -- Scott <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: cx88 pci_abort messages
Scott wrote: On Oct 4, 2007, at 11:52 AM, Scott wrote: I'm having what I think is a PCI bus problem. I have a ASUS P5B Intel 965 motherboard and a DVICO Fusion HDTV5 RT adapter on the PCI bus. When this adapter is recording (anything) I see pci_abort messages repeating in the /var/log/messages file. As a result I see some minor video corruption during playback. I've installed the adapter into a PCI slot that shares an IRQ with the onboard USB. However, I've also disabled all USB support in BIOS, so the adapter is the only thing on the IRQ, and still see the same errors. Any suggestions for further troubleshooting? Is this a PCI bus quirk on this motherboard? A copy of my .config is at http://donpoo.net/kernel_config Oct 2 21:59:12 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:12 htpc cx88[0]/2-mpeg: general errors: 0x0008 Oct 2 21:59:20 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:20 htpc cx88[0]/2-mpeg: general errors: 0x0008 Oct 2 21:59:32 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:32 htpc cx88[0]/2-mpeg: general errors: 0x0008000 I was poking around the PCI bus with setpci/lspci last night and tried adjusting the latency from 64 to 32. This didn't make a difference. I also changed my core2duo speedstep governor from ondemand to performance to prevent the CPUs from changing speed. I eventualy saw the same pci_abort message but I might have seen less of them. Is there a way to log every device pci device that throws an interrupt? I'm thinking if I could find out which pci device was stealing the interrupt that I could disable it or look at the code and see what it was doing. PCI aborts won't have anything to do with interrupts. It's a PCI DMA transfer that either the initiator (here, the TV card) or the target (the chipset host bridge) decided to puke on for some reason. Possibly parity errors? -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: cx88 pci_abort messages
On Oct 4, 2007, at 11:52 AM, Scott wrote: I'm having what I think is a PCI bus problem. I have a ASUS P5B Intel 965 motherboard and a DVICO Fusion HDTV5 RT adapter on the PCI bus. When this adapter is recording (anything) I see pci_abort messages repeating in the /var/log/messages file. As a result I see some minor video corruption during playback. I've installed the adapter into a PCI slot that shares an IRQ with the onboard USB. However, I've also disabled all USB support in BIOS, so the adapter is the only thing on the IRQ, and still see the same errors. Any suggestions for further troubleshooting? Is this a PCI bus quirk on this motherboard? A copy of my .config is at http://donpoo.net/kernel_config Oct 2 21:59:12 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:12 htpc cx88[0]/2-mpeg: general errors: 0x0008 Oct 2 21:59:20 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:20 htpc cx88[0]/2-mpeg: general errors: 0x0008 Oct 2 21:59:32 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:32 htpc cx88[0]/2-mpeg: general errors: 0x0008000 I was poking around the PCI bus with setpci/lspci last night and tried adjusting the latency from 64 to 32. This didn't make a difference. I also changed my core2duo speedstep governor from ondemand to performance to prevent the CPUs from changing speed. I eventualy saw the same pci_abort message but I might have seen less of them. Is there a way to log every device pci device that throws an interrupt? I'm thinking if I could find out which pci device was stealing the interrupt that I could disable it or look at the code and see what it was doing. -- Scott - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
cx88 pci_abort messages
I'm having what I think is a PCI bus problem. I have a ASUS P5B Intel 965 motherboard and a DVICO Fusion HDTV5 RT adapter on the PCI bus. When this adapter is recording (anything) I see pci_abort messages repeating in the /var/log/messages file. As a result I see some minor video corruption during playback. I've installed the adapter into a PCI slot that shares an IRQ with the onboard USB. However, I've also disabled all USB support in BIOS, so the adapter is the only thing on the IRQ, and still see the same errors. Any suggestions for further troubleshooting? Is this a PCI bus quirk on this motherboard? A copy of my .config is at http://donpoo.net/kernel_config Oct 2 21:59:12 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:12 htpc cx88[0]/2-mpeg: general errors: 0x0008 Oct 2 21:59:20 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:20 htpc cx88[0]/2-mpeg: general errors: 0x0008 Oct 2 21:59:32 htpc cx88[0]: irq mpeg [0x8] pci_abort* Oct 2 21:59:32 htpc cx88[0]/2-mpeg: general errors: 0x0008 htpc ~ # uname -a Linux htpc 2.6.22.1 #4 SMP PREEMPT Tue Oct 2 04:15:40 EDT 2007 i686 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz GenuineIntel GNU/Linux htpc ~ # lspci -v 00:00.0 Host bridge: Intel Corporation Memory Controller Hub (rev 02) Subsystem: ASUSTeK Computer Inc. Unknown device 81ea Flags: bus master, fast devsel, latency 0 Capabilities: [e0] Vendor Specific Information 00:01.0 PCI bridge: Intel Corporation PCI Express Root Port (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: b000-bfff Memory behind bridge: f490-f89f Prefetchable memory behind bridge: bfe0-dfdf Capabilities: [88] Subsystem: Intel Corporation Unknown device 277d Capabilities: [80] Power Management version 3 Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable- Capabilities: [a0] Express Root Port (Slot+) IRQ 0 00:1a.0 USB Controller: Intel Corporation USB UHCI Controller #4 (rev 02) (prog-if 00 [UHCI]) Subsystem: ASUSTeK Computer Inc. Unknown device 81ec Flags: bus master, medium devsel, latency 0, IRQ 16 I/O ports at e000 [size=32] 00:1a.1 USB Controller: Intel Corporation USB UHCI Controller #5 (rev 02) (prog-if 00 [UHCI]) Subsystem: ASUSTeK Computer Inc. Unknown device 81ec Flags: bus master, medium devsel, latency 0, IRQ 21 I/O ports at e080 [size=32] 00:1a.7 USB Controller: Intel Corporation USB2 EHCI Controller #2 (rev 02) (prog-if 20 [EHCI]) Subsystem: ASUSTeK Computer Inc. Unknown device 81ec Flags: bus master, medium devsel, latency 0, IRQ 18 Memory at febff400 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port 00:1b.0 Audio device: Intel Corporation HD Audio Controller (rev 02) Subsystem: ASUSTeK Computer Inc. Unknown device 81ec Flags: bus master, fast devsel, latency 0, IRQ 20 Memory at febf8000 (64-bit, non-prefetchable) [size=16K] Capabilities: [50] Power Management version 2 Capabilities: [60] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable- Capabilities: [70] Express Unknown type IRQ 0 00:1c.0 PCI bridge: Intel Corporation PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 Prefetchable memory behind bridge: dfe0-dfef Capabilities: [40] Express Root Port (Slot+) IRQ 0 Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable- Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Unknown device 81ec Capabilities: [a0] Power Management version 2 00:1c.3 PCI bridge: Intel Corporation PCI Express Port 4 (rev 02) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: c000-cfff Memory behind bridge: f8a0-f8af Capabilities: [40] Express Root Port (Slot+) IRQ 0 Capabilities: [80] Message Signalled Interrupts: Mask- 64bit- Queue=0/0 Enable- Capabilities: [90] Subsystem: ASUSTeK Computer Inc. Unknown device 81ec Capabilities: [a0] Power Management version 2 00:1d.0 USB Controller: Intel Corporation USB UHCI Controller #1 (rev 02) (prog-if 00 [UHCI]) Subsystem: ASUSTeK Computer Inc. Unknown device 81ec Flags: bus master, medium devsel, latency 0, IRQ 19 I/O ports at d800 [size=32] 00:1d.1 USB Controller: Intel Corporation USB UHCI Controller #2 (
