Re: HIGHMEM64G Kernel (2.6.23.1) makes system crawl

2007-10-24 Thread Robert Hancock
mark all of RAM as cachable. When the top memory starts being used with the bigmem kernel it causes a major slowdown. Check for a BIOS update from Intel, first. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com

Re: HIGHMEM64G Kernel (2.6.23.1) makes system crawl

2007-10-24 Thread Robert Hancock
Rajkumar S wrote: On 10/24/07, Robert Hancock [EMAIL PROTECTED] wrote: Rajkumar S wrote: Hello, I am using a Core 2 Duo E6750 CPU on an intel DG33FB mother board with 4GB Ram, running Debian Lenny. Since the box has 4 GB ram I compiled a big mem kernel, but the machine is very slow while

Re: Kernel configuration of a two dual core processor - Xeon 5130

2007-10-19 Thread Robert Hancock
ikely you didn't enable whatever driver your system needs to access the hard drive.. -- 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 "unsubs

Re: Kernel configuration of a two dual core processor - Xeon 5130

2007-10-19 Thread Robert Hancock
whatever driver your system needs to access the hard drive.. -- 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

Re: Inquiry data and emulated SG devices

2007-10-17 Thread Robert Hancock
r burn engine is differentiating IDE and read-good-old-SCSI devices and handles them sometimes in a different way, so this differenciation is really important for us. -> How can I detect the real physical device type now? I don't have a great answer off the top of my head.. -- Robert Hancoc

Re: Problem: CPU sleep when calling a function in another object for the first time.

2007-10-17 Thread Robert Hancock
it's quite possible that that part of the executable hasn't been loaded until something calls a function within it. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: sen

Re: Understanding lspci output

2007-10-17 Thread Robert Hancock
t doesn't support 64-bit. -- 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

Re: Understanding lspci output

2007-10-17 Thread Robert Hancock
. -- 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

Re: Problem: CPU sleep when calling a function in another object for the first time.

2007-10-17 Thread Robert Hancock
it's quite possible that that part of the executable hasn't been loaded until something calls a function within it. -- 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

Re: Inquiry data and emulated SG devices

2007-10-17 Thread Robert Hancock
is differentiating IDE and read-good-old-SCSI devices and handles them sometimes in a different way, so this differenciation is really important for us. - How can I detect the real physical device type now? I don't have a great answer off the top of my head.. -- Robert Hancock Saskatoon, SK

Re: Help with rtc to hpet conversion of OSGPS driver

2007-10-11 Thread Robert Hancock
the real-time clock at all? Does the tickless kernel effect this at all? Thanks for any help you can lend, Rick Niles. Am I missing why you can't just use a normal kernel timer for this? You shouldn't have to mess with the RTC or HPET directly.. -- Robert Hancock Saskatoon, SK, Canada

Re: ioremap_nocache and mem= parameter with k 2.6.18

2007-10-11 Thread Robert Hancock
and possibly find a workaround... It doesn't make sense to use ioremap_nocache on RAM. It's only meant for mapping MMIO memory regions on a device. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberth

Re: Invalid PnP ACPI reserved MMIO areas on Supermicro boards

2007-10-11 Thread Robert Hancock
Len Brown wrote: On Tuesday 09 October 2007 20:01, Robert Hancock wrote: Some people with certain Supermicro boards (at least the H8DCE, it seems) have reported that the sata_nv driver fails to attach to some of the controllers due to resource conflicts: https://bugzilla.redhat.com

Re: Invalid PnP ACPI reserved MMIO areas on Supermicro boards

2007-10-11 Thread Robert Hancock
Len Brown wrote: On Tuesday 09 October 2007 20:01, Robert Hancock wrote: Some people with certain Supermicro boards (at least the H8DCE, it seems) have reported that the sata_nv driver fails to attach to some of the controllers due to resource conflicts: https://bugzilla.redhat.com

Re: ioremap_nocache and mem= parameter with k 2.6.18

2007-10-11 Thread Robert Hancock
and possibly find a workaround... It doesn't make sense to use ioremap_nocache on RAM. It's only meant for mapping MMIO memory regions on a device. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe

Re: Help with rtc to hpet conversion of OSGPS driver

2007-10-11 Thread Robert Hancock
use the real-time clock at all? Does the tickless kernel effect this at all? Thanks for any help you can lend, Rick Niles. Am I missing why you can't just use a normal kernel timer for this? You shouldn't have to mess with the RTC or HPET directly.. -- Robert Hancock Saskatoon, SK

Re: Marvell's 88SE6121 SATA driver in Kernel 2.4

2007-10-10 Thread Robert Hancock
now and lacking many bug fixes. It would be far better to upgrade to 2.6 for SATA support. -- 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 "unsubscri

Re: Nvidia SATA - Seagate SATA Drives

2007-10-10 Thread Robert Hancock
Jim Gifford wrote: Robert Hancock wrote: Jim Gifford wrote: Here's the situation. I have a MSI KN8Neo-f motherboard with a Seagate Barracuda 250 GB SATA drive. I have replaced this drive three times in the last two weeks due to it failing. Now the only thing in common is the use

Re: Nvidia SATA - Seagate SATA Drives

2007-10-10 Thread Robert Hancock
Jim Gifford wrote: Robert Hancock wrote: Jim Gifford wrote: Here's the situation. I have a MSI KN8Neo-f motherboard with a Seagate Barracuda 250 GB SATA drive. I have replaced this drive three times in the last two weeks due to it failing. Now the only thing in common is the use

Re: Marvell's 88SE6121 SATA driver in Kernel 2.4

2007-10-10 Thread Robert Hancock
now and lacking many bug fixes. It would be far better to upgrade to 2.6 for SATA support. -- 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

Re: Nvidia SATA - Seagate SATA Drives

2007-10-09 Thread Robert Hancock
computer.com/product/p_spec.asp?model=K8N_Neo4-F=mb It has 2GB of Memory and a Nvidia PCI-E Graphics Adapter I will work with any member of the lkml team to help isolate the issue, the only issue is that when it locks up everything has to be written down or photographed. -- Robert Hancock S

Invalid PnP ACPI reserved MMIO areas on Supermicro boards

2007-10-09 Thread Robert Hancock
e ACPI resource reservations? I wonder how Windows deals with this, if it even does on these boards? -- 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 "unsubsc

Invalid PnP ACPI reserved MMIO areas on Supermicro boards

2007-10-09 Thread Robert Hancock
if they conflict with the ACPI resource reservations? I wonder how Windows deals with this, if it even does on these boards? -- 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

Re: Nvidia SATA - Seagate SATA Drives

2007-10-09 Thread Robert Hancock
/p_spec.asp?model=K8N_Neo4-Fclass=mb It has 2GB of Memory and a Nvidia PCI-E Graphics Adapter I will work with any member of the lkml team to help isolate the issue, the only issue is that when it locks up everything has to be written down or photographed. -- Robert Hancock Saskatoon, SK, Canada

Re: cx88 pci_abort messages

2007-10-06 Thread Robert Hancock
) 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: sen

Re: cx88 pci_abort messages

2007-10-06 Thread Robert Hancock
) 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

Re: File corruption when using kernels 2.6.18+

2007-10-03 Thread Robert Hancock
The performance effects of setting this bit are limited to streaming stores to the write-combining (WC) memory type, a case expected to rarely occur in actual usage. No loss of performance occurs in the general case (WB memory type). This workaround must not be applied to processors prio

Re: Point of gpl-only modules (flame)

2007-10-03 Thread Robert Hancock
ernel gets marked as tainted when you load proprietary modules because with no source code available there is no way to determine what kind of badness the code may have done to break the kernel. Bug reports from tainted kernels are generally given fairly little weight. -- Robert Hancock Sas

Re: Point of gpl-only modules (flame)

2007-10-03 Thread Robert Hancock
marked as tainted when you load proprietary modules because with no source code available there is no way to determine what kind of badness the code may have done to break the kernel. Bug reports from tainted kernels are generally given fairly little weight. -- Robert Hancock Saskatoon, SK

Re: File corruption when using kernels 2.6.18+

2007-10-03 Thread Robert Hancock
are limited to streaming stores to the write-combining (WC) memory type, a case expected to rarely occur in actual usage. No loss of performance occurs in the general case (WB memory type). This workaround must not be applied to processors prior to revision C0. -- Robert Hancock Saskatoon

libata-add-human-readable-error-value-decoding-v3.patch (was: -mm merge plans for 2.6.24)

2007-10-01 Thread Robert Hancock
Andrew Morton wrote: libata-add-human-readable-error-value-decoding-v3.patch I think I own this now. Will send to jgarzik then drop it if it doesn't stick. Another plug for this one, as the author. I really don't think one can object to it, and it definitely seems useful. -- Robert

libata-add-human-readable-error-value-decoding-v3.patch (was: -mm merge plans for 2.6.24)

2007-10-01 Thread Robert Hancock
Andrew Morton wrote: libata-add-human-readable-error-value-decoding-v3.patch I think I own this now. Will send to jgarzik then drop it if it doesn't stick. Another plug for this one, as the author. I really don't think one can object to it, and it definitely seems useful. -- Robert

Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS

2007-09-30 Thread Robert Hancock
D", "K2AOAJ0AHITACHI", ATA_HORKAGE_NONCQ }, /* NCQ hard hangs device under heavier load, needs hard power cycle */ Are you sure this isn't just a bum drive? Looking at the SMART listing that was posted, looks like it's had some uncorrectable sector read erro

Re: [PATCH] blacklist NCQ on Seagate Barracuda ST380817AS

2007-09-30 Thread Robert Hancock
hard power cycle */ Are you sure this isn't just a bum drive? Looking at the SMART listing that was posted, looks like it's had some uncorrectable sector read errors in the event log.. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http

Re: General slowness with using 64Gb HIGHMEM option on 32-bit kernel

2007-09-28 Thread Robert Hancock
didn't set up the MTRRs to mark all RAM as write-back. This results in the last bit of memory being uncacheable and causes a major performance drop. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberth

Re: General slowness with using 64Gb HIGHMEM option on 32-bit kernel

2007-09-28 Thread Robert Hancock
didn't set up the MTRRs to mark all RAM as write-back. This results in the last bit of memory being uncacheable and causes a major performance drop. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com

Re: PCI: Fix boot-time hang on G31/G33 PC

2007-09-26 Thread Robert Hancock
-time problems that we need this patch to fix, I would say it should stay in. -- 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-kern

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-26 Thread Robert Hancock
as this device is concerned? If we are doing BAR sizing and moving the base address around, it's going to cause problems if you try to access the device during this time whether we disable decode or not. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-26 Thread Robert Hancock
as this device is concerned? If we are doing BAR sizing and moving the base address around, it's going to cause problems if you try to access the device during this time whether we disable decode or not. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED

Re: PCI: Fix boot-time hang on G31/G33 PC

2007-09-26 Thread Robert Hancock
-time problems that we need this patch to fix, I would say it should stay in. -- 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

Re: 2.6.23-rc7-mm1 AHCI ATA errors -- won't boot

2007-09-25 Thread Robert Hancock
does not support the Power Management feature set." Whereas TEST UNIT READY is required for SCSI. It seems the SAT authors didn't consider this case. I assume we can tell from the identify data that the device doesn't support power management and just fake success for TEST UNIT READY in

Re: 2.6.23-rc7-mm1 AHCI ATA errors -- won't boot

2007-09-25 Thread Robert Hancock
Management feature set. Whereas TEST UNIT READY is required for SCSI. It seems the SAT authors didn't consider this case. I assume we can tell from the identify data that the device doesn't support power management and just fake success for TEST UNIT READY in this case? -- Robert Hancock

Re: [PATCH] [9/50] i386: validate against ACPI motherboard resources

2007-09-22 Thread Robert Hancock
Yinghai Lu wrote: On 9/22/07, Robert Hancock <[EMAIL PROTECTED]> wrote: Thomas Gleixner wrote: On Sat, 2007-09-22 at 10:28 -0600, Robert Hancock wrote: Yinghai Lu wrote: No! MMCONFIG will not work with acpi=off any more. I don't think this is unreasonable. The ACPI MCFG table is

Re: [PATCH] [9/50] i386: validate against ACPI motherboard resources

2007-09-22 Thread Robert Hancock
Thomas Gleixner wrote: On Sat, 2007-09-22 at 10:28 -0600, Robert Hancock wrote: Yinghai Lu wrote: No! MMCONFIG will not work with acpi=off any more. I don't think this is unreasonable. The ACPI MCFG table is how we are supposed to learn about the area in the first place. If we can't get

Re: [PATCH] [9/50] i386: validate against ACPI motherboard resources

2007-09-22 Thread Robert Hancock
Yinghai Lu wrote: No! MMCONFIG will not work with acpi=off any more. I don't think this is unreasonable. The ACPI MCFG table is how we are supposed to learn about the area in the first place. If we can't get the table location via an approved mechanism, and can't validate it doesn't

Re: [PATCH] [9/50] i386: validate against ACPI motherboard resources

2007-09-22 Thread Robert Hancock
Yinghai Lu wrote: No! MMCONFIG will not work with acpi=off any more. I don't think this is unreasonable. The ACPI MCFG table is how we are supposed to learn about the area in the first place. If we can't get the table location via an approved mechanism, and can't validate it doesn't

Re: [PATCH] [9/50] i386: validate against ACPI motherboard resources

2007-09-22 Thread Robert Hancock
Thomas Gleixner wrote: On Sat, 2007-09-22 at 10:28 -0600, Robert Hancock wrote: Yinghai Lu wrote: No! MMCONFIG will not work with acpi=off any more. I don't think this is unreasonable. The ACPI MCFG table is how we are supposed to learn about the area in the first place. If we can't get

Re: [PATCH] [9/50] i386: validate against ACPI motherboard resources

2007-09-22 Thread Robert Hancock
Yinghai Lu wrote: On 9/22/07, Robert Hancock [EMAIL PROTECTED] wrote: Thomas Gleixner wrote: On Sat, 2007-09-22 at 10:28 -0600, Robert Hancock wrote: Yinghai Lu wrote: No! MMCONFIG will not work with acpi=off any more. I don't think this is unreasonable. The ACPI MCFG table is how we

Re: Out of socket memory

2007-09-19 Thread Robert Hancock
worse, not better, as it allows more memory to be allocated for each socket. I should think you want to adjust those values down, not up.. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubs

Re: Out of socket memory

2007-09-19 Thread Robert Hancock
worse, not better, as it allows more memory to be allocated for each socket. I should think you want to adjust those values down, not up.. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe from

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-17 Thread Robert Hancock
be feasible to delay it further. Nevertheless, I think this is a rather ugly workaround for the underlying problem. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: sen

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-17 Thread Robert Hancock
be feasible to delay it further. Nevertheless, I think this is a rather ugly workaround for the underlying problem. -- 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

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-16 Thread Robert Hancock
Benjamin Herrenschmidt wrote: On Thu, 2007-09-13 at 21:32 -0600, Robert Hancock wrote: If we do encounter other devices that choke on having the BAR disabled during probing then we can add additional quirk logic, but we haven't run into anything like that yet. Well... if the device needs

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-16 Thread Robert Hancock
Ivan Kokshaysky wrote: On Fri, Sep 14, 2007 at 05:53:58PM -0600, Robert Hancock wrote: In the first one, Linus talks about a USB controller whose SMM code chokes on the BAR being disabled. That explanation seems odd to me. If it chokes on the BAR disabled, how doesn't it choke on the BAR being

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-16 Thread Robert Hancock
Ivan Kokshaysky wrote: On Fri, Sep 14, 2007 at 05:53:58PM -0600, Robert Hancock wrote: In the first one, Linus talks about a USB controller whose SMM code chokes on the BAR being disabled. That explanation seems odd to me. If it chokes on the BAR disabled, how doesn't it choke on the BAR being

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-16 Thread Robert Hancock
Benjamin Herrenschmidt wrote: On Thu, 2007-09-13 at 21:32 -0600, Robert Hancock wrote: If we do encounter other devices that choke on having the BAR disabled during probing then we can add additional quirk logic, but we haven't run into anything like that yet. Well... if the device needs

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-15 Thread Robert Hancock
Yinghai Lu wrote: On 9/14/07, Robert Hancock <[EMAIL PROTECTED]> wrote: It's not impossible at all. In fact I'm quite sure (Jesse can confirm) that in the case of the board he was using, it was an add-in graphics card where he saw this problem. The fact is that in the case of MMCONFIG o

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-15 Thread Robert Hancock
Yinghai Lu wrote: On 9/14/07, Robert Hancock [EMAIL PROTECTED] wrote: It's not impossible at all. In fact I'm quite sure (Jesse can confirm) that in the case of the board he was using, it was an add-in graphics card where he saw this problem. The fact is that in the case of MMCONFIG overlap

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-14 Thread Robert Hancock
Ivan Kokshaysky wrote: On Fri, Sep 14, 2007 at 08:30:59AM -0600, Robert Hancock wrote: Do you have an example of specific hardware that exhibits this problem? Well, first two results of google search for "disable bar when sizing": http://lkml.org/lkml/2002/12/21/95 http://lkml.org

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-14 Thread Robert Hancock
Ivan Kokshaysky wrote: On Thu, Sep 13, 2007 at 09:32:42PM -0600, Robert Hancock wrote: Disabling the BAR decoding does not mean disabling the device (aside from the one group of host bridge that apparently disables CPU to RAM access, whose designers were apparently on crack when they read

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-14 Thread Robert Hancock
Ivan Kokshaysky wrote: On Thu, Sep 13, 2007 at 09:32:42PM -0600, Robert Hancock wrote: Disabling the BAR decoding does not mean disabling the device (aside from the one group of host bridge that apparently disables CPU to RAM access, whose designers were apparently on crack when they read

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-14 Thread Robert Hancock
Ivan Kokshaysky wrote: On Fri, Sep 14, 2007 at 08:30:59AM -0600, Robert Hancock wrote: Do you have an example of specific hardware that exhibits this problem? Well, first two results of google search for disable bar when sizing: http://lkml.org/lkml/2002/12/21/95 http://lkml.org/lkml/2002

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-13 Thread Robert Hancock
r devices that choke on having the BAR disabled during probing then we can add additional quirk logic, but we haven't run into anything like that yet. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To un

Re: sata_nv issues with MCP51 SATA controller

2007-09-13 Thread Robert Hancock
the hardware less. If this is an MCP51 chipset, adma=0 will make no difference since that chipset does not support ADMA in the first place. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To u

Re: sata_nv issues with MCP51 SATA controller

2007-09-13 Thread Robert Hancock
the hardware less. If this is an MCP51 chipset, adma=0 will make no difference since that chipset does not support ADMA in the first place. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe

Re: [PATCH]PCI:disable resource decode in PCI BAR detection

2007-09-13 Thread Robert Hancock
the BAR disabled during probing then we can add additional quirk logic, but we haven't run into anything like that yet. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe from this list: send

Re: PCI: Unable to reserve mem region problem

2007-09-10 Thread Robert Hancock
as been reserved Which I very much doubt it should be doing, the BIOS doesn't need to reserve PCI BAR ranges in the ACPI tables. This sounds like a BIOS bug. You might want to check for an update from Supermicro. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" f

Re: tsc timer related problems/questions

2007-09-10 Thread Robert Hancock
lt states.) Theoretically one could track the TSC between different CPUs running at different clock speeds, etc. and across halts, but it doesn't really seem worth the trouble, especially in cases like AMD multi-CPU where the TSC can't be trusted across CPUs anyway. -- Robert Hancock Saskatoon,

Re: ECC and DMA to/from disk controllers

2007-09-10 Thread Robert Hancock
or contradict? I don't know any controller that works in this way. This would greatly increase CPU overhead since the CPU would need to perform this CRC calculation. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http://www.roberth

Re: ECC and DMA to/from disk controllers

2007-09-10 Thread Robert Hancock
or contradict? I don't know any controller that works in this way. This would greatly increase CPU overhead since the CPU would need to perform this CRC calculation. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com

Re: tsc timer related problems/questions

2007-09-10 Thread Robert Hancock
. and across halts, but it doesn't really seem worth the trouble, especially in cases like AMD multi-CPU where the TSC can't be trusted across CPUs anyway. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe

Re: PCI: Unable to reserve mem region problem

2007-09-10 Thread Robert Hancock
Which I very much doubt it should be doing, the BIOS doesn't need to reserve PCI BAR ranges in the ACPI tables. This sounds like a BIOS bug. You might want to check for an update from Supermicro. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page

Re: read-only /sys/block/sda/device/queue_depth

2007-09-01 Thread Robert Hancock
eueing, but it's disabled. ata_piix does not support NCQ. You have to use AHCI mode for that. -- 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 "uns

Re: read-only /sys/block/sda/device/queue_depth

2007-09-01 Thread Robert Hancock
, but it's disabled. ata_piix does not support NCQ. You have to use AHCI mode for that. -- 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

Re: Copy large memory regions from & to userspace

2007-08-31 Thread Robert Hancock
he same checks that access_ok does. I'm not aware of any code in the kernel that does userspace-to-userspace copies directly. Likely because there's rarely a need for it? -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTECTED] Home Page: http

Re: Copy large memory regions from to userspace

2007-08-31 Thread Robert Hancock
does. I'm not aware of any code in the kernel that does userspace-to-userspace copies directly. Likely because there's rarely a need for it? -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com/ - To unsubscribe from

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Robert Hancock
between the motherboard and the drive. I suspect this is something that the system manufacturer has to validate works properly, more than any hard and fast limit. For a normal desktop PC, it would be far better to just use an 80-wire cable. -- Robert Hancock Saskatoon, SK, Canada To email

Re: [PATCH] Override 80-wire cable detection for Toshiba S1800-814

2007-08-30 Thread Robert Hancock
between the motherboard and the drive. I suspect this is something that the system manufacturer has to validate works properly, more than any hard and fast limit. For a normal desktop PC, it would be far better to just use an 80-wire cable. -- Robert Hancock Saskatoon, SK, Canada To email

Re: speeding up swapoff

2007-08-29 Thread Robert Hancock
pplication when there is a lot of memory swapped out. Normally mlockall is what is used in this sort of situation, that way it doesn't force all swapped data in for every app. It's possible that calling this with lots of swapped pages in the app at the time may have the same problem though.

Re: [Bugme-new] [Bug 8957] New: Exported functions and variables should not be reachable by the outside of the module until module_init finishes

2007-08-29 Thread Robert Hancock
circumstances is this actually happening? What are these functions that are being called? Normally things are set up such that this isn't a problem, i.e. if module A depends on module B, module A can't load until module B is finished loading. -- Robert Hancock Saskatoon, SK, Canada To email

Re: Understanding I/O behaviour - next try

2007-08-29 Thread Robert Hancock
sugggested disabling the write-back cache on some Smart Array controllers as a workaround because it reduced performance in applications that did large bulk writes. Presumably they are planning on releasing some updated firmware that fixes this eventually.. -- Robert Hancock Saskatoon, S

Re: Understanding I/O behaviour - next try

2007-08-29 Thread Robert Hancock
it reduced performance in applications that did large bulk writes. Presumably they are planning on releasing some updated firmware that fixes this eventually.. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http://www.roberthancock.com

Re: [Bugme-new] [Bug 8957] New: Exported functions and variables should not be reachable by the outside of the module until module_init finishes

2007-08-29 Thread Robert Hancock
circumstances is this actually happening? What are these functions that are being called? Normally things are set up such that this isn't a problem, i.e. if module A depends on module B, module A can't load until module B is finished loading. -- Robert Hancock Saskatoon, SK, Canada To email

Re: speeding up swapoff

2007-08-29 Thread Robert Hancock
when there is a lot of memory swapped out. Normally mlockall is what is used in this sort of situation, that way it doesn't force all swapped data in for every app. It's possible that calling this with lots of swapped pages in the app at the time may have the same problem though. -- Robert

Re: PROBLEM: Suspend corrupts bios clock since 2.6.21

2007-08-26 Thread Robert Hancock
this intentionally. -- 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 maj

Re: [PATCH] Fix boot-time hang on G31/G33 PC

2007-08-26 Thread Robert Hancock
Matthew Wilcox wrote: On Sun, Aug 26, 2007 at 06:55:42AM -0600, Matthew Wilcox wrote: On Sat, Aug 25, 2007 at 10:24:57PM -0600, Robert Hancock wrote: We've already got a patch for this in Greg's PCI tree, hopefully it should go in for 2.6.24. I haven't seen it. I guess it wasn't sent

Re: [PATCH] Fix boot-time hang on G31/G33 PC

2007-08-26 Thread Robert Hancock
Matthew Wilcox wrote: On Sun, Aug 26, 2007 at 06:55:42AM -0600, Matthew Wilcox wrote: On Sat, Aug 25, 2007 at 10:24:57PM -0600, Robert Hancock wrote: We've already got a patch for this in Greg's PCI tree, hopefully it should go in for 2.6.24. I haven't seen it. I guess it wasn't sent

Re: PROBLEM: Suspend corrupts bios clock since 2.6.21

2007-08-26 Thread Robert Hancock
this intentionally. -- 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

Re: 2.6.22.5 SATA Failure

2007-08-25 Thread Robert Hancock
like you have some CONFIG_IDE options enabled in your kernel configuration that result in drivers/ide trying to drive part or all of that controller, preventing libata from doing so. Likely the easiest thing to do is just set CONFIG_IDE=n entirely.. -- Robert Hancock Saskatoon, SK, Canada

Re: [PATCH] Fix boot-time hang on G31/G33 PC

2007-08-25 Thread Robert Hancock
Matthew Wilcox wrote: This patch, loosely based on a patch from Robert Hancock, which was in turn based on a patch from Jesse Barnes, fixes a boot-time hang on my shiny new PC. The 'conflict' mentioned in the patch in my case happens to be between mmconfig and the graphics card, but it could

Re: [PATCH] Fix boot-time hang on G31/G33 PC

2007-08-25 Thread Robert Hancock
Matthew Wilcox wrote: This patch, loosely based on a patch from Robert Hancock, which was in turn based on a patch from Jesse Barnes, fixes a boot-time hang on my shiny new PC. The 'conflict' mentioned in the patch in my case happens to be between mmconfig and the graphics card, but it could

Re: 2.6.22.5 SATA Failure

2007-08-25 Thread Robert Hancock
in your kernel configuration that result in drivers/ide trying to drive part or all of that controller, preventing libata from doing so. Likely the easiest thing to do is just set CONFIG_IDE=n entirely.. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED

Re: Possible problems reading a DVD-RAM disc

2007-08-24 Thread Robert Hancock
drive is reporting an error on a write to the disc. It's not an error code in the MMC5 standard, though, so presumably it's a vendor-specific error code. Not sure why it would be writing to the disc though.. Maybe if the disc is mounted read-write it is doing last-access-time updates or something? --

Re: [sata_nv] timeout waiting for ADMA IDLE, stat=0x440

2007-08-24 Thread Robert Hancock
drive, bad SATA cable, insufficient power, etc.) or maybe this is another drive with broken NCQ.. -- 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 &q

Re: USB Key light on/off state depending on mount

2007-08-24 Thread Robert Hancock
dware" on it, or something like that. Mount/unmount doesn't really indicate whether the device is in use in Linux, though, since it can still be potentially accessed even when the device isn't mounted. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from [EMAIL PROTEC

Re: USB Key light on/off state depending on mount

2007-08-24 Thread Robert Hancock
on it, or something like that. Mount/unmount doesn't really indicate whether the device is in use in Linux, though, since it can still be potentially accessed even when the device isn't mounted. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from [EMAIL PROTECTED] Home Page: http

Re: [sata_nv] timeout waiting for ADMA IDLE, stat=0x440

2007-08-24 Thread Robert Hancock
drive, bad SATA cable, insufficient power, etc.) or maybe this is another drive with broken NCQ.. -- 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

Re: Possible problems reading a DVD-RAM disc

2007-08-24 Thread Robert Hancock
? -- 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

Re: intel_rng: FWH not detected (and no entropy)

2007-08-23 Thread Robert Hancock
sed to be used to provide entropy, however in later kernels this was taken out as it was thought unsafe, since an attacker could detect or control the timing of these packets and thus determine the contents of the entropy pool. -- Robert Hancock Saskatoon, SK, Canada To email, remove &quo

Re: intel_rng: FWH not detected (and no entropy)

2007-08-23 Thread Robert Hancock
to be used to provide entropy, however in later kernels this was taken out as it was thought unsafe, since an attacker could detect or control the timing of these packets and thus determine the contents of the entropy pool. -- Robert Hancock Saskatoon, SK, Canada To email, remove nospam from

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