Re: [PATCH] sysctl: Add a feature to drop caches selectively

2014-06-27 Thread Matthias Schniedermeyer
On 26.06.2014 13:57, Luká? Czerner wrote: So if the authors want to sell this new interface (in whatever form) to the kernel community, they should start with providing a solid use-case, with some more details, explore alternatives and show how the alternatives do not work for them.

Re: Partially Privileged Applications

2013-11-11 Thread Matthias Schniedermeyer
On 11.11.2013 14:05, Shahbaz Youssefi wrote: On Sun, Nov 10, 2013 at 8:06 PM, Matthias Schniedermeyer m...@citd.de wrote: I don't see a way around borders (Papers please), otherwise you can't reject things you don't want, you have to check if that something that is to be done is allowed

Re: [RFC][PATCH 4/3] vfs: Allow rmdir to remove mounts in all but the current mount namespace

2013-10-08 Thread Matthias Schniedermeyer
On 06.10.2013 23:55, Eric W. Biederman wrote: Serge E. Hallyn se...@hallyn.com writes: So if we can feel safe just depending on the parent directory permissions (which are not hidden by a mount) protecting our mount points, I feel much better about this patchset. As far as i can tell, the

Build-failure with old files in build-directory (Was: Linux 3.9 released)

2013-04-29 Thread Matthias Schniedermeyer
On 28.04.2013 17:56, Linus Torvalds wrote: I'm not sure if it is supported, but building with a O= -directory that was previously used to build a 3.8.9-kernel that was cleaned (but not mrpropered) before building 3.9 results in a build-failure: make[2]: *** No rule to make target

Re: [regression] external HDD in USB3 enclosure cannot be dynamically removed (Re: Linux 3.7.5)

2013-02-13 Thread Matthias Schniedermeyer
On 13.02.2013 09:28, Holger Hoffstätte wrote: On 12.02.2013 21:42, Sarah Sharp wrote: [..] I think I see the issue. Your host controller reports the Inactive state after a USB disconnect. My host controllers go to the RxDetect state on a disconnect. The patches that went into 3.8

Re: [regression] external HDD in USB3 enclosure cannot be dynamically removed (Re: Linux 3.7.5)

2013-02-13 Thread Matthias Schniedermeyer
On 13.02.2013 11:33, Sarah Sharp wrote: On Wed, Feb 13, 2013 at 06:16:56PM +0100, Matthias Schniedermeyer wrote: On 13.02.2013 09:28, Holger Hoffstätte wrote: On 12.02.2013 21:42, Sarah Sharp wrote: [..] There was a further set of patches queued for 3.9 to deal with connected

Re: Linux 3.6

2012-10-03 Thread Matthias Schniedermeyer
On 03.10.2012 13:05, Kees Cook wrote: Hi Nick, 3.6 introduced link restrictions: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=800179c9b8a1e796e441674776d11cd4c05d61d7 It sounds like you've got symlinks in a world-writable directory, and you're following

Re: The ext3 way of journalling

2008-01-12 Thread Matthias Schniedermeyer
On 12.01.2008 18:10, TimC wrote: Bodo Eggert [EMAIL PROTECTED] said on Sat, 12 Jan 2008 02:41:17 +0100 (CET): On Fri, 11 Jan 2008, Lennart Sorensen wrote: On Fri, Jan 11, 2008 at 05:22:45PM +0100, Bodo Eggert wrote: What can happen if someone does tune2fs -Lroot /dev/usbstick and

Re: The ext3 way of journalling

2008-01-10 Thread Matthias Schniedermeyer
On 10.01.2008 12:30, Helge Hafting wrote: Matthias Schniedermeyer wrote: Don't use udev then. Good old static dev works fine if you have a fixed set of devices. It doesn't, with the unpredictable SCSI mapping insanity. That what LABEL und UUID-Support in mount is for. You

Re: The ext3 way of journalling

2008-01-09 Thread Matthias Schniedermeyer
On 09.01.2008 09:56, Tuomo Valkonen wrote: On 2008-01-09 00:06 +0100, Matthias Schniedermeyer wrote: That what LABEL und UUID-Support in mount is for. That's udev shit. I don't want it. No. Bis denn -- Real Programmers consider what you see is what you get to be just as bad a concept

Re: The ext3 way of journalling

2008-01-09 Thread Matthias Schniedermeyer
On 09.01.2008 11:21, Matthias Schniedermeyer wrote: On 09.01.2008 09:56, Tuomo Valkonen wrote: On 2008-01-09 00:06 +0100, Matthias Schniedermeyer wrote: That what LABEL und UUID-Support in mount is for. That's udev shit. I don't want it. No. To be more verbose. The 'LABEL

Re: The ext3 way of journalling

2008-01-08 Thread Matthias Schniedermeyer
Don't use udev then. Good old static dev works fine if you have a fixed set of devices. It doesn't, with the unpredictable SCSI mapping insanity. That what LABEL und UUID-Support in mount is for. You label the filesystems (e2label for ext2 and ext3) and use that label to mount them -

Re: Why is deleting (or reading) files not counted as IO-Wait in top?

2008-01-05 Thread Matthias Schniedermeyer
On 05.01.2008 01:31, Andrew Morton wrote: On Wed, 2 Jan 2008 20:35:03 +0100 Matthias Schniedermeyer [EMAIL PROTECTED] wrote: Hi Currently i'm deleting about 500.000 files on a XFS-filesystem which takes a few minutes, as i had a top open i saw that 'wa' is shown as 0.0

Re: Why is deleting (or reading) files not counted as IO-Wait in top?

2008-01-03 Thread Matthias Schniedermeyer
On 03.01.2008 02:16, Maxim Levitsky wrote: On Wednesday, 2 January 2008 21:35:03 Matthias Schniedermeyer wrote: Hi Currently i'm deleting about 500.000 files on a XFS-filesystem which takes a few minutes, as i had a top open i saw that 'wa' is shown as 0.0% (Nothing else running

Why is deleting (or reading) files not counted as IO-Wait in top?

2008-01-02 Thread Matthias Schniedermeyer
Hi Currently i'm deleting about 500.000 files on a XFS-filesystem which takes a few minutes, as i had a top open i saw that 'wa' is shown as 0.0% (Nothing else running currently) and everything except 'id' is near the bottom too. Kernel is 2.6.23.11. So, as 'rm -rf' is essentially a IO (or

Re: Strange Memory Corruption Problem with Core2Duo E6700, P965 Chipset MB and =4GB RAM

2007-12-16 Thread Matthias Schniedermeyer
On 16.12.2007 02:39, Matthias Schniedermeyer wrote: Hi It appears i found my culprit. Knocking on wood :-) I have a ISDN-controller which is driven by the HFC-PCI-driver and it appears to not be 64bit-safe. I will test more thorough after i have relocated the card to another computer

Strange Memory Corruption Problem with Core2Duo E6700, P965 Chipset MB and =4GB RAM

2007-12-15 Thread Matthias Schniedermeyer
Hi Yesterday i upgraded an 1 year old System from 4x1GB (32Bit, No Memory-Remap) to 4x2GB (64Bit, Memory-Remap) Today i due to a lucky coincidence i discovered that i have a memory corruption problem. This problem happens only with at least 4GB RAM and Memory-Remap. It happens with any 2

Re: [poll] Is the megafreeze development model broken?

2007-11-12 Thread Matthias Schniedermeyer
On 12.11.2007 17:18, Tuomo Valkonen wrote: On 2007-11-12, Adrian Bunk [EMAIL PROTECTED] wrote: Geeks like you and me want the latest software (I'm using Debian unstable/testing). But most users want a Linux installation that simply works - and this includes all software on the system

Re: [PATCH] Add quirk to set AHCI mode on ICH boards

2007-11-11 Thread Matthias Schniedermeyer
On 11.11.2007 15:05, Thorsten Leemhuis wrote: On 10.11.2007 00:32, Matthias Schniedermeyer wrote: [...] My computer/mainboard @work has such a broken BIOS. Of the 5 SATA-Ports this MB has only 1 (and 1 missing that is reported by linux but i can't find on the MB) is configured as AHCI

Re: [PATCH] Add quirk to set AHCI mode on ICH boards

2007-11-10 Thread Matthias Schniedermeyer
On 09.11.2007 22:08, Jeff Garzik wrote: Matthias Schniedermeyer wrote: And on the topic of broken BIOSes. I have a little empathy for the MB manufactures as non-RAID AHCI royaly screws Windos, so not supporting it reduces their support costs enough to overlook screwing the non-windos

Re: [PATCH] Add quirk to set AHCI mode on ICH boards

2007-11-10 Thread Matthias Schniedermeyer
On 09.11.2007 22:08, Jeff Garzik wrote: Matthias Schniedermeyer wrote: And on the topic of broken BIOSes. I have a little empathy for the MB manufactures as non-RAID AHCI royaly screws Windos, so not supporting it reduces their support costs enough to overlook screwing the non-windos

Re: [PATCH] Add quirk to set AHCI mode on ICH boards

2007-11-10 Thread Matthias Schniedermeyer
On 10.11.2007 13:01, Mark Lord wrote: Matthias Schniedermeyer wrote: .. My computer/mainboard @work has such a broken BIOS. Of the 5 SATA-Ports this MB has only 1 (and 1 missing that is reported by linux but i can't find on the MB) is configured as AHCI which means that with .. I have

Re: [PATCH] Add quirk to set AHCI mode on ICH boards

2007-11-09 Thread Matthias Schniedermeyer
On 09.11.2007 12:04, Alan Cox wrote: On Thu, 8 Nov 2007 22:46:22 -0500 Jeff Garzik [EMAIL PROTECTED] wrote: On Thu, Nov 08, 2007 at 10:29:37PM -0500, Mark Lord wrote: And I might even privately patch my own kernels to map the ACHI BAR in the cases where the BIOS didn't... The

Re: recent nfs change causes autofs regression

2007-08-31 Thread Matthias Schniedermeyer
It's not very conservative to suddenly change default behavior and break autofs mounts. There is not even one kernel message that _tells_ user why it thinks it's wrong. It just silently fails. No it doesn't. It reports an error code to the caller. If autofs is failing silently, then that

Re: /dev/loop* devices not appearing in /dev (at least since 2.6.22-rc3*)

2007-06-14 Thread Matthias Schniedermeyer
markus reichelt wrote: PS: Just wondering: Who came up with this on-demand hype? I don't remember the names, but i remember the root causes. Here we go: The discussion started when someone with a CD-Server ran out of loops as 256 was the fixed maximum. The other root-cause was that the

Re: [RFD] Documentation/HOWTO translated into Japanese

2007-06-11 Thread Matthias Schniedermeyer
Greg KH wrote: On Sun, Jun 10, 2007 at 07:56:52PM +0200, Matthias Schniedermeyer wrote: Greg KH wrote: I could see the point in ONE HOWTO file per language to get people started, but everything else is a pointless exercise. A developer/bug-reporter has to be able to express him-/herself

Re: [RFD] Documentation/HOWTO translated into Japanese

2007-06-10 Thread Matthias Schniedermeyer
Greg KH wrote: On Sun, Jun 10, 2007 at 02:24:51PM +0200, Jesper Juhl wrote: Since the common language of most kernel contributors is english I personally feel that we should stick to just that one language in the tree and then perhaps keep translations on a website somewhere. So the

Re: [ANNOUNCE] DualFS: File System with Meta-data and Data Separation

2007-02-26 Thread Matthias Schniedermeyer
Yakov Lerner wrote: On 2/14/07, sfaibish [EMAIL PROTECTED] wrote: On Sat, 10 Feb 2007 22:06:37 -0500, Sorin Faibish [EMAIL PROTECTED] wrote: Introducing DualFS File System developers played with the idea of separation of meta-data from data in file systems for a while. The idea was

Re: SATA-performance: Linux vs. FreeBSD

2007-02-13 Thread Matthias Schniedermeyer
Martin A. Fink wrote: Am Dienstag, 13. Februar 2007 00:31 schrieben Sie: Martin A. Fink wrote: I have to store big amounts of data coming from 2 digital cameras to disk. Thus I have to write blocks of around 1 MB at 30 to 50 frames per second for a long period of time. So it is important

Re: SATA-performance: Linux vs. FreeBSD

2007-02-13 Thread Matthias Schniedermeyer
Martin A. Fink wrote: Also you have skipped the information how the images arrive on the system (PCI(e) card?), that may be important for an end to end view of the problem. Images arrive via Gigabit Ethernet. GigE Vision standard. (PCIe x4) The the next question is: ChipSet/Used

Re: SATA-performance: Linux vs. FreeBSD

2007-02-13 Thread Matthias Schniedermeyer
Martin A. Fink wrote: The needed total bandwidth may be to high and at least the incoming part via GigE may have serious overhead. 150MB/s in via (at least 2) GigE, without Zero-Copy there is another 150MB/s memory to memory. Then there is the next 150MB/s memory to the discs, without

Re: SATA-performance: Linux vs. FreeBSD

2007-02-12 Thread Matthias Schniedermeyer
Martin A. Fink wrote: I have to store big amounts of data coming from 2 digital cameras to disk. Thus I have to write blocks of around 1 MB at 30 to 50 frames per second for a long period of time. So it is important for me that the harddisk drive is reliable in the sense of if it is capable

Re: [RFC] How to (automatically) find the correct maintainer(s)

2007-01-15 Thread Matthias Schniedermeyer
Richard Knutsson wrote: Stefan Richter wrote: On 15 Jan, Matthias Schniedermeyer wrote: Stefan Richter wrote: On 14 Jan, Richard Knutsson wrote: (Really liked the idea to have a Maintainer-button next to Help in *config) Rhetorical question: What

Re: [RFC] How to (automatically) find the correct maintainer(s)

2007-01-14 Thread Matthias Schniedermeyer
Richard Knutsson wrote: Matthias Schniedermeyer wrote: Richard Knutsson wrote: Matthias Schniedermeyer wrote: Richard Knutsson wrote: Any thoughts on this is very much appreciated (is there any flaws with this?). The thought that crossed my mind

Re: [RFC] How to (automatically) find the correct maintainer(s)

2007-01-14 Thread Matthias Schniedermeyer
Stefan Richter wrote: On 14 Jan, Richard Knutsson wrote: (Really liked the idea to have a Maintainer-button next to Help in *config) Rhetorical question: What will this button be used for? Having all(tm) information of something in one place? Help-Text and Dependencies/Selects are

Re: [RFC] How to (automatically) find the correct maintainer(s)

2007-01-13 Thread Matthias Schniedermeyer
Richard Knutsson wrote: Any thoughts on this is very much appreciated (is there any flaws with this?). The thought that crossed my mind was: Why not do the same thing that was done to the Help-file. (Before it was superseded by Kconfig). Originaly there was a central Help-file, with all the

Re: [RFC] How to (automatically) find the correct maintainer(s)

2007-01-13 Thread Matthias Schniedermeyer
Richard Knutsson wrote: Matthias Schniedermeyer wrote: Richard Knutsson wrote: Any thoughts on this is very much appreciated (is there any flaws with this?). The thought that crossed my mind was: Why not do the same thing that was done to the Help-file. (Before

Re: The Input Layer and the Serial Port

2006-12-28 Thread Matthias Schniedermeyer
Loye Young wrote: Take for example the AT keyboard which is one of the most common keyboards in the world. I have seen and used it attached to a PC via parport, serial port and the standard PS/2 port. So to handle cases like this the input layer created a serio interface. If plain ASCII text

Re: Support 2.4 modules features in 2.6

2006-12-12 Thread Matthias Schniedermeyer
Jaswinder Singh wrote: Hello, I want to support old 2.4 modules features in 2.6 kernel modules:- 1. no kernel source tree is required to build modules. I don't think that is possible. There are a few questions that are quite fundamental when you want to build a module that can be loaded by

Re: single bit errors on files stored on USB-HDDs via USB2/usb_storage

2006-12-08 Thread Matthias Schniedermeyer
Robert Hancock wrote: Matthias Schniedermeyer wrote: Hmmm. That's the only thing that i currently may be doing wrong. I have a 1,5 Meter and a 4,5 Meter cable connected to the USB-Controller and i only use of them depending on where the HDD is placed in my room, the other one is dangling

Re: single bit errors on files stored on USB-HDDs via USB2/usb_storage

2006-12-08 Thread Matthias Schniedermeyer
Pete Zaitcev wrote: On Thu, 07 Dec 2006 20:41:12 +0100, Matthias Schniedermeyer [EMAIL PROTECTED] wrote: I'm using a Bunch auf HDDs in USB-Enclosures for storing files. (currently 38 HDD, with a total capacity of 9,5 TB of which 8,5 TB is used) [] This time i kept the defective files

Re: single bit errors on files stored on USB-HDDs via USB2/usb_storage

2006-12-08 Thread Matthias Schniedermeyer
Stefan Richter wrote: Matthias Schniedermeyer wrote: Robert Hancock wrote: Matthias Schniedermeyer wrote: I have a 1,5 Meter and a 4,5 Meter cable connected to the USB-Controller and i only use of them depending on where the HDD is placed in my room, the other one is dangling unconnected

Re: single bit errors on files stored on USB-HDDs via USB2/usb_storage

2006-12-07 Thread Matthias Schniedermeyer
Robert Hancock wrote: Matthias Schniedermeyer wrote: Hi I'm using a Bunch auf HDDs in USB-Enclosures for storing files. (currently 38 HDD, with a total capacity of 9,5 TB of which 8,5 TB is used) All the same enclosure type? 36xFantec (was MaPower) DB-335U2-1 with Genesys-Logic-Chipset

Re: single bit errors on files stored on USB-HDDs via USB2/usb_storage

2006-12-07 Thread Matthias Schniedermeyer
DervishD wrote: Hi Matthias :) * Matthias Schniedermeyer [EMAIL PROTECTED] dixit: My averate file size is about 1GB with files from about 400MB to 5000MB I estimate the average error-rate at about one damaged file in about 10GB of data. I'm not sure and haven't checked if the files

single bit errors on files stored on USB-HDDs via USB2/usb_storage

2006-12-06 Thread Matthias Schniedermeyer
Hi I'm using a Bunch auf HDDs in USB-Enclosures for storing files. (currently 38 HDD, with a total capacity of 9,5 TB of which 8,5 TB is used) After i realised about a year(!) ago that the files copied to the HDDs sometimes aren't identical to the original-files i changed my procedured so that

Re: ahci, SActive flag, and the HD activity LED

2005-08-03 Thread Matthias Schniedermeyer
Martin Wilck wrote: Jens Axboe wrote: If I am reading the specs correctly, that'd mean the ahci driver is wrong in setting the SActive bit. I completely agree, that was my reading of the spec as well and hence my original posts about this in the NCQ thread. Have you (or has anybody else)

Re: SCSI-CD-Writer don't show up

2001-06-04 Thread Matthias Schniedermeyer
On Sun, Jun 03, 2001 at 06:38:27PM +0200, Gérard Roudier wrote: On Sat, 2 Jun 2001, Matthias Schniedermeyer wrote: I have 3 SCSI-CD-Writers. Strange is that the boot-process only finds the first one (1 0 5 0), the other two i have to add with echo scsi add-single-device 2 0 4 0

SCSI-CD-Writer don't show up

2001-06-02 Thread Matthias Schniedermeyer
#Include hallo.h I have 3 SCSI-CD-Writers. Strange is that the boot-process only finds the first one (1 0 5 0), the other two i have to add with echo scsi add-single-device 2 0 4 0 /proc/scsi/scsi echo scsi add-single-device 2 0 6 0 /proc/scsi/scsi to make them useable. Here is the

Promise Ultra 100 TX2

2001-05-29 Thread Matthias Schniedermeyer
#Include hallo.h I just bought one of $subject (PDC 20268) Removed a Ultra 66 from my system and plugged the new one into the 66Mhz PCI-Bus (Intependent from the 33Mhz PCI-Bus (Tyan Thunder HE-SL Mainboard with Serverworks HE-SL-Chipset)) Kernel is 2.4.4 with Promise support compiled in.

Re: Promise Ultra 100 TX2

2001-05-29 Thread Matthias Schniedermeyer
I just bought one of $subject (PDC 20268) Removed a Ultra 66 from my system and plugged the new one into the 66Mhz PCI-Bus (Intependent from the 33Mhz PCI-Bus (Tyan Thunder HE-SL Mainboard with Serverworks HE-SL-Chipset)) Kernel is 2.4.4 with Promise support compiled in. (The Ultra 66

Memory leak in 2.4.2 (+loop-6-patch)???

2001-03-20 Thread Matthias Schniedermeyer
#Include hallo.h After some days of uptime, i just stopped (nearly) all programs, unmounted all unnecessary devices. But top free say that 1/3 of my RAM is still "used" Here is what top means: (Swap is 0K because i don't use Swap at all. Should i use swap?) 9:54pm up 11 days, 23 min,

Bigger rsync hangs with 2.4.0, 2.4.1, 2.4.1ac4

2001-02-07 Thread Matthias Schniedermeyer
#include hallo.h (Relevant) HW is: MB: Serverworks HE-Chipset RAM: 1GB CPU: 2xPIII 933Mhz "System"-HDD: 18GB Ultra 160SCSI "Data"-HDD: 2xIBM DTLA 307045 plugged onto a "Promise Ultra 66" Some "simple" steps to do that. mount /dev/hde1 /x1 mount /dev/hdg1 /x2 (The two DTLAs) rsync -av

Re: Linux 2.4.1-ac5

2001-02-07 Thread Matthias Schniedermeyer
now that -ac grows that huge, could you put out incremental patches? Takes me too much time. But if anyone else wants to, go ahead This is what i use to diff 2 different kernels - snip - diffkernel) mount none /d/kernel -t ramfs cd /d/kernel tar

Re: Mainboard with Serverworks HE Chipset

2001-01-20 Thread Matthias Schniedermeyer
You could try booting with 'nmi_watchdog=0' and see what happens. Since i "append"ed it into the lilo-confi i haven't had a lockup. :-)) Bis denn -- Real Programmers consider "what you see is what you get" to be just as bad a concept in Text Editors as it is in women. No, the Real

Re: Mainboard with Serverworks HE Chipset

2001-01-17 Thread Matthias Schniedermeyer
Now my problem. The Graphic-Card is a Geforce 2, Xfree is 4.02 (compiled under 2.2.17). When i start X, everything is fine. When i go back to text-console and wait "some time" and then switch back to X the computer locks solid and i have to press the Big-Red Button. (Switching

Mainboard with Serverworks HE Chipset

2001-01-16 Thread Matthias Schniedermeyer
#include hallo.h I got a "Tyan Thunder HE-SL"-Mainboard today, which has a "Severworks ServerSet III HE"-Chipset. (2xPIII 933, 2x512MB PC133 ECC-Registered SDRAM) And i have one problem and one question. First the question. I have an uptime of phenomenal 29minutes and "cat /proc/interrupts"

Re: About Celeron processor memory barrier problem

2000-12-23 Thread Matthias Schniedermeyer
I found that when I compiled the 2.4 kernel with the option of Pentium III or Pentium 4 on a Celeron's PC, it could cause the system hang at very beginning boot stage, and I found the problem is cause by the fact that Intel Celeron doesn't have a real memory