Re: unexplained high load

2001-01-10 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: 91 processes, only 1 running (think top) 1 Running Process - Load 1.0... no? Gruss Bernd - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at

Re: PROBLEM: select() on TCP socket sleeps for 1 tick even if data available

2001-01-20 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: My problem is that if data is NOT available when select() starts, but becomes available immediately afterwards, select() doesn't wake up immediately, but sleeps for 1/100 second. It does not sleep for a 1/100second, it will but the process in the run

the remount problem [2.4.0] kind of solved [patch]

2001-01-21 Thread Bernd Eckenfels
Hello, the following patch against 2.4.0 will allow the kernel to write a message to the kernel log in case files are open for write or delete on a partition which should be remounted. I run my System with Read-Only /usr File System and this works fairly well. I have a script to remount the

Re: [PATCH] - filesystem corruption on soft RAID5 in 2.4.0+

2001-01-21 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: There have been assorted reports of filesystem corruption on raid5 in 2.4.0, and I have finally got a patch - see below. I don't know if it addresses everybody's problems, but it fixed a very really problem that is very reproducable. Do you know if it

Re: the remount problem [2.4.0] kind of solved [patch]

2001-01-22 Thread Bernd Eckenfels
Hello, for Short: I had a mail exchange with Vic Abell, the lsof Author, and in the next Version of lsof the open shared libs will be detected. So my Kernel Patch is no longer needed: # ~root/rw # rm /usr/lib/jabber/jsm/libjsm.so # ~root/ro mount: /usr busy # lsof_4.55A.linux/lsof -a +L1 /usr

Re: Turning off ARP in linux-2.4.0

2001-01-22 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Now for the long version of the problem. I am using the TurboLinux ClusterServer 6.0 product. This product uses what they refer to as an advanced traffic manager that has the ip address of the web site aliased to eth0. Thus this machine arps for the

Re: Turning off ARP in linux-2.4.0

2001-01-23 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: The snippet you posted doesn't describe what ClusterThingy exactly wants to do with ARPs. Andi, it is simple. There are 3 machines on one net with the same IP Address. Two of them run a web server and one of them a packet redirector. The packet

Re: Turning off ARP in linux-2.4.0

2001-01-23 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: So in the setup I have, we have an ATM which gets all incoming requests for the web site. And then we have 7 other machines that get the requests passed onto them by the ATM. You can hardwire the ARP entry of your redirector to your Router. In that

Re: Turning off ARP in linux-2.4.0

2001-01-24 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: The problem is complex and can't be solved with ifconfig -arp why? The needs for clusters with shared addresses include: 1. block ARP replies for such addresses -arp will do that 2. don't announce these addresses in the ARP probes (can

Re: PROBLEM: select() on TCP socket sleeps for 1 tick even if data available

2001-01-24 Thread Bernd Eckenfels
can someone explain what is nagle or pinpoint explanation :) nagel's algorithm is used to "wait" with sending of small packets until more data is available, because sending biger packets has less overhead. greetings Bernd - To unsubscribe from this list: send the line "unsubscribe

Re: Turning off ARP in linux-2.4.0

2001-01-24 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: -arp will do that Not in Linux 2.2+, all addresses are replied. -arp only means "don't talk ARP", in our case we talk through eth0, so we don't want to stop it, right? why not? if you hard wire the MAC Address of your web servers to all other

Re: Turning off ARP in linux-2.4.0

2001-01-25 Thread Bernd Eckenfels
On Thu, Jan 25, 2001 at 01:02:32PM +0200, Julian Anastasov wrote: Hey, the world is not only Linux. Sometimes the people build clusters using different hardware and software. If your solution works for your setup we can't claim it is universal. It is a Linux News Group after all. So

Re: hotmail not dealing with ECN

2001-01-25 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Just curious if others have noticed that hotmail is unable to deal with ECN and wondering if this is a standard that should be encouraged, as in should I tell hotmail that perhaps they should look into supporting it, or should I not waste my breath and

Re: 2.2.19pre6/7: why can't I dump core?

2001-01-25 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: I've done a quick inspection of pre7 patch set and noticed about the same thing. Is this an oversight, did someone intentionally turn off core dumping until some other widget is incorporated into the patches, or none of the above (a conspiracy, maybe?

Re: hotmail not dealing with ECN

2001-01-25 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: RFC793, where is lists the unused flag bits as "reserved". That is pretty clear to me. It just has to say that they are reserved, and that is what it does. Actually I read somehwre "must be 0", but I am afraid dont know where anymore. anyway, it does

Re: hotmail not dealing with ECN

2001-01-27 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Think of yourself as a firewall author now. You come across this, and go, "these bits aren't used now; this means noone should be setting them. I have no guarantee that anything in the future isn't going to use these bits for something that isn't

Re: sendfile+zerocopy: fairly sexy (nothing to do with ECN)

2001-01-30 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: On Tue, Jan 30, 2001 at 02:17:57PM -0800, David S. Miller wrote: 8.5MB/sec sounds like half-duplex 100baseT. No; I'm 100% its FD; HD gives 40k/sec TCP because of collisions and such like. Positive you are running at full duplex all the way

[2.4.1] mkreiserfs on loopdevice freezes kernel

2001-01-30 Thread Bernd Eckenfels
Hello, if I run mkreiserfs on a 32megablocks /dev/loop0 it will lock up while generating the journaling information. Sometimes at 20% sometimes at 60%. Since mkreiserfs is not using the kernel module i guess this is a loop device problem in 2.4.1 kernels. There is no dmesg message at the

Re: reiserfs min size (was: [2.4.1] mkreiserfs on loopdevice freezes kernel)

2001-01-31 Thread Bernd Eckenfels
On Wed, Jan 31, 2001 at 11:15:56PM +, James Sutherland wrote: dd if=/dev/zero of=/var/loop.img count=32768 size=4096 That just creates a 128Mb file of zeros... This sounds a bit small. Why "size=4096"?? because i am too tired to calculate. mkreiserfs wants 32768 (32*1024) blocks with a

Re: missing sysrq

2001-05-31 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: However, if I go to /proc/sys/kernel/sysrq does not exist. It is a compile time option, so the person who compiled your kernel left it out. vm.freepages = 383 766 1149 tat feature is removed in recent VM Systems. Greetings Bernd - To unsubscribe from

Re: [RFC] Wine speedup through kernel module

2000-09-18 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: (1) An in-kernel resident lump, providing very basic services: * file-change notification this is interesting for other stuff too, i think irix has an interface for that, i think its an ioctl? * unicode string handling/conversion

Re: /proc/sys/vm/freepages not writable.

2000-09-18 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: How about taking a decaying average (loadavg style) of the peak allocation-free why? I think it is not a bad thing if you have some kind of setting like "irq heavy system" - "applicaion heavy system" even in NT you hve this slider. The current problem

Re: [patch] net/ipv4/net.c

2000-09-22 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: On a side note, does it/will it be implemented in the future? it was implemented and it is phased out. It is only present to be compatible. One would do that with user space arp daemons or auto_arp. Greetings Bernd - To unsubscribe from this list: send

Re: will ip 6 in ip4 tunnelling be fixed anytime soon ?

2000-10-07 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Is there an ETA on having ip6 in ip4 tunnelling working with the latest net-utils?? what is the problem? Do u have a bug or do u mean general IPv6 Support? There are a lot of unoficial IPv6 Packages, Debian has a good Collection, and we are trying to get

Re: will ip 6 in ip4 tunnelling be fixed anytime soon ?

2000-10-08 Thread Bernd Eckenfels
On Sat, Oct 07, 2000 at 11:07:18PM -0700, Gerhard Mack wrote: [root@innerfire /root]# ifconfig sit0 tunnel ::206.123.31.102 SIOCSIFDSTADDR: No buffer space available what are you trying to do with this command? In case you want to set the IPv4 Endpoint of the Tunnel you should set the IPv4

Re: will ip 6 in ip4 tunnelling be fixed anytime soon ?

2000-10-09 Thread Bernd Eckenfels
On Mon, Oct 09, 2000 at 11:44:34AM +0200, Jorg de Jong wrote: your just a bit off here, I believe Gerhard has posted this bug a number of times, further more I have submitted a fix for this bug, but has still not been accepted. Neither has there been any feedback on why ? the address for

unfair stress on non memory allocating apps while swapout (in 2.4)

2000-10-14 Thread Bernd Eckenfels
Hello, with 2.4.0-test10-pre2 (possibly long before that version) i still can bring the system to a halt while "tail /dev/zero" is running. I don't complain that you can make a DOS by a trshing system, cause I can use ulimit to actually avoid that. But if i use the tail /dev/zero with nice as a

[PATCH] missing \n in printk of oom_kill.c

2000-10-14 Thread Bernd Eckenfels
the oom_kill will output a kernel message without missing \n: --- mm/oom_kill.c.org Sun Oct 15 06:18:24 2000 +++ mm/oom_kill.c Sun Oct 15 06:18:45 2000 @@ -156,7 +156,7 @@ if (p == NULL) panic("Out of memory and no killable processes...\n"); -

Re: unfair stress on non memory allocating apps while swapout (in 2.4)

2000-10-21 Thread Bernd Eckenfels
On Sat, Oct 21, 2000 at 12:22:00PM -0200, Rik van Riel wrote: as the proccess is killed. But still i wonder why the swap out is such unfair to the rest of the system, especially to a process which is not actually allocating memory at all. Look again ... "tail /dev/zero" allocates

Re: unfair stress on non memory allocating apps while swapout (in 2.4)

2000-10-21 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: I know it does thats why i have run that tool- The question is still, why gets my system unusable in the same second my systems starts to page out? To follow up on myself: the question was why are programs which do not allocate memory be delayed while

Re: Topic for discussion: OS Design

2000-10-22 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: A few years ago, there was an intense debate around the question of cooperative vs. preemptive multitasking operating system design. Today, however, cooperative multitasking is a thing of the past, and it is virtual= ly undisputed that the preemptive

Re: unfair stress on non memory allocating apps while swapout (in 2.4)

2000-10-24 Thread Bernd Eckenfels
On Mon, Oct 23, 2000 at 02:21:11PM -0200, Rik van Riel wrote: 1) some process allocates gobs of memory 2) the kernel swaps out memory from all processes 3) some of the other - partly swapped out - processes wake up and need to be swapped in 4) these other processes have to ALLOCATE MEMORY

Re: unfair stress on non memory allocating apps while swapout (in 2.4)

2000-10-24 Thread Bernd Eckenfels
In article 000b01c03bef$17e43c30$0200a8c0@W2K you wrote: PS this is my first post to lkml so please keep that in mind... PPS ... so, was I right? yes welcome, thanks for reminding me of that. And i think exactly that point could be a bit optimized. Greetings Bernd - To unsubscribe from this

Re: reiserfs: still problems with tail conversion

2001-02-24 Thread Bernd Eckenfels
In article 87861.983061717@tiny you wrote: Exactly. The tail conversion code depends heavily on the page up to date bit being set right. It is more than possible that I've screwed up something there, and the code thinks a page is valid when it really isn't. I have seen null byte

Re: ide / usb problem

2001-02-25 Thread Bernd Eckenfels
In article 20010225060326.K127@pervalidus you wrote: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error } hda: dma_intr: error=0x84 { DriveStatusError BadCRC } I think I saw that with broken Drives, too. Greetings Bernd - To unsubscribe from this list: send the line "unsubscribe

Re: Status of posix-ACL's

2001-03-11 Thread Bernd Eckenfels
In article F1457AD86AB6D311A6F200105AD9FB0219E251@EPCNETIN you wrote: What are the biggest problems? (i know that many userland-tools must be changed for this). AFAIK there is no Support in User Land Programs required. You just have additional tools for managing the ACLs . The main problem

Re: Alert on LAN for Linux?

2001-03-14 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Alert on LAN makes the system up from power management type sleep when there are packets to be processed. Why you would ever have sleep mode on a server is beyond me. Most professional UPS with Network Management Cards can go a sever to sleep mode if

Re: kernel 2.4.2 network performances

2001-03-16 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Yesterday I discovered that the load I can throw out to network seems to depend on other activities running on machine. I was able to get throughput of 33M/s with ATM when machine was idle, while I compiled kernel at same time, the throughput was

Re: pivot_root linuxrc problem

2001-03-16 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Aha.. so that's it. I've never been able to get /linuxrc to execute automagically. I wonder why /linuxrc executes on Art's system, but not on mine. I can call it whatever I want and it doesn't run unless I explicitly start it with init=whatever.

Re: beware of dead string constants

2000-11-23 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: This is mostly a heads-up to say that in this regard gcc is not ready for prime time, so we really can't get away with using if() as an ifdef yet, at least not without penalty. Humm.. whats the Advantage of this? Greetings Bernd - To unsubscribe from

Re: beware of dead string constants

2000-11-26 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: If you mean preferring 'if ()' over 'ifdef'... Linus. :) And I agree with him: code looks -much- more clean without ifdefs. And the compiler should be smart enough to completely eliminate code inside an 'if (0)' code block. Oh I see. Well...

Re: ANNOUNCE: Linux Kernel ORB: kORBit

2000-12-08 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: This email is here to announce the availability of a port of ORBit (the GNOME ORB) to the Linux kernel. OMG you guys are so cool :) Hey, this is real craftsmanship (not sure if it useful :) Does this revamp the Micro Kernel Discussin? ONLY KIDDING :)

Re: ANNOUNCE: Linux Kernel ORB: kORBit

2000-12-09 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Why would you *ever* want to write a device driver in perl??? Actually there is kind of device driver in perl, and besides it's performance I think it proofed that a High-Level Language can do good for rapid prototyping. http://www.inter-mezzo.org - a

Re: /dev/random: really secure?

2000-12-19 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: A potential weakness. The entropy estimator can be manipulated by feeding data which looks random to the estimator, but which is in fact not random at all. That's why feeding randomness is a priveledgedoperation. Greetings Bernd - To unsubscribe from

Re: /dev/random: really secure?

2000-12-19 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Even if you were able to predict all entropy sources, to predict the generated random numbers you would need to invert the cryptographic hash used there. If you can predict ALL input in the pool, including the initial boot state you can just rerun the

Re: Presentation Layer in TCP/IP linux implementation

2000-12-19 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Hello Linux World, Is there a way to add a generic and transparent presenation layer in the path of TCP/IP packets. I am speaking about something probably in the path between the user space mechanims (send/recv/read/write) and the actual

Re: 2.4.0 kernels and vpn

2000-12-22 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Hi. Is there a way to support vpn in the 2.4.0 kernels like we had with the patch for the 2.2.x kernels? What kind of VPN, there are all kinds of User mode solutions, some for kernel modules. Are you talking about IPSec? Greetings Bernd - To

Re: TCP keepalive seems to send to only one port

2000-12-26 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Well, consider the scenario of an application which opens a control connection and a data connection, and the data connection remains idle for some hours while you get to the beginning of the queue, and then the transfer starts. The data connection is

Re: test13-pre5 + char-major-145??

2000-12-29 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: What may be calling this? Any advice where to go ferreting? Somebody may try to open the device file. Greetings Bernd - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the

Re: Journaling: Surviving or allowing unclean shutdown?

2001-01-08 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Also thing about cases where powerplant fails, or when electricity in the house fails. I've seen places where electricity failed 5 times a day, because someone put 10A fuse and we were using just about 2kW... Especially evil is a power failure, and then

Re: [BUG?] two swapping processes freeze 2.4.0-test10 (but not 2.2.18pre19)

2000-11-03 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: I simultaneously run "top d1" and two of the test computations. All is well (top updates smoothly) until physical RAM is exhausted. However, as soon as swap is touched, then top freezes and does not update. In this state, I can switch virtual

Re: [PATCH] document ECN in 2.4 Configure.help

2000-11-06 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: I'm still not sure why it's been decided not to do fallback or how this whole situation is any different from path MTU discovery. Because this will add a Fallback (non ECN) packet to every denied target. I think this is bad policy at least. It might

Re: Missing ACKs with Linux 2.2/2.4?

2000-11-11 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: The cobalt machines have now had a kernel upgrade (only to 2.2.14, thats the most recent that Cobalt provide...), and the problem has disappeared. Should we ignore "timestamp 0" if there are systems out there which will break on that. Or is timestamp 0

Re: Advanced Linux Kernel/Enterprise Linux Kernel

2000-11-17 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: But also scalability: 2TB is a problem for me in some cases, 32bit just don't cut it all the time - but I need to circumvent the storage problem even on a 32bit system. And adding disks to the system while running is desireable. Why do you run 32bit

Re: Missing ACKs with Linux 2.2/2.4?

2000-11-17 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Sorry, ignoring some values of timestamp is simply impossible. It is PAWS. One packet is more than enough to kill you. 8) Hmm... Isnt this only important for the first SYN with a Zero Timestamp which is not very critical for PAWS? Greetings Bernd - To

Re: Missing ACKs with Linux 2.2/2.4?

2000-11-17 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Timestamp is not a random number, so that probability of PAWS failure does not depend on restricting it at all. The only thing which can help to reduce probability is dropping all tpacket with ts_val==0 or shutting down your machine while time of your

Re: light weight user level semaphores

2001-04-18 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: So FS_create() starts out by allocating the backing store for the semaphore. This can basically be done in user space, although the kernel does need to get involved for the second part of it, which is to (a) allocate a kernel "backing store"

Re: how to display proxy arp addresses using ip neigh from iproute2

2001-06-20 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: 47.129.82.116 * * MPeth0 the asteriks simply show you, that the new linuix kernel will not be able to remeber any mac address for a proxy arp entry. It will always respond with the device' own MAC address. Can't

Re: harddisk support

2001-06-20 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: How can I access more than 16 harddisks? Create the Device File with: cd /dev ; MAKEDEV sdq -or- cd /dev ; mknod sdq b 65 0 mknod sdq1 b 65 1 ... - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL

Re: Linux and system area networks

2001-06-28 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: We seem to have come full circle. My original question was about providing a better way for sockets applications to take advantage of SAN hardware. W2K Datacenter introduces Winsock Direct, which will bypass the protocol stack when appropriate. The

Re: Kernel executation from ROM

2001-02-19 Thread Bernd Eckenfels
In article 01e701c09a2a$21e789a0$bba6b3d0@Toshiba you wrote: I see . The biggest negative point of running kernel from ROM is that ROM speed is slow :( Well, normally you use the ROM only as a "boot device". You copy the Kernel into RAM and run it. Ram is not more expensive than ROM :) What

Re: ip_conntrack error under 2.4.1-ac18

2001-02-19 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Feb 18 23:05:50 rhino kernel: ip_conntrack: maximum limit of 8184 entries exceed ed while running nessus, with 100 simultaneous connections set, against a company machine. This is the first time I've observed this error. It is not an error, you just

Re: [rfc] Near-constant time directory index for Ext2

2001-02-20 Thread Bernd Eckenfels
In article 01022100361408.18944@gimli you wrote: But actually, rm is not problem, it's open and create. To do a create you have to make sure the file doesn't already exist, and without an index you have to scan on average half the directory file. Unless you use a File System which is better

Re: race condition on looking up inodes

2001-04-08 Thread Bernd Eckenfels
In article 000201c0c0a4$eb5c7b10$321ea8c0@saturn you wrote: rename("/usr/hybrid/cfg/data","/usr/mytemp/data1"); /*for process 1*/ rename("/usr/mytemp/data1","/usr/test");/* for process 2*/ Rename syscall is expected to be atomic on unixoid systems. And I dont know of a case where a problem

Re: [BUG] tmpfs and loop

2001-04-14 Thread Bernd Eckenfels
In article 01041321112600.23961@oscar you wrote: oscar% sudo mount /tmp/disk /snap -oloop -text2 ioctl: LOOP_SET_FD: Invalid argument are you sure you have a working loop device? Try to verify it in a non tmpfs filesystem. stat64("/dev/loop0", {st_mode=S_IFBLK|0660, st_rdev=makedev(7, 0),

Re: fsck, raid reconstruction bad bad 2.4.3

2001-04-15 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: (There is no config file to disable/alter this .. no work-around that I know of ..) You can't be serious. Go sit down and think about what's going on. Well, there are two potential solutions: a) stop rebuild until fsck is fixed b) wait with fsck until

Re: fsck, raid reconstruction bad bad 2.4.3

2001-04-15 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Is this a pathological case because of the way fsck does business, or does the RAID re-sync affect any disk-bound process that severely? i gues the seeks are the problem. fsck will quite heavyly reposition, so does the rebuild, most likely on different

Re: fsck, raid reconstruction bad bad 2.4.3

2001-04-15 Thread Bernd Eckenfels
In article 01041521302600.15046@tabby you wrote: a) stop rebuild until fsck is fixed And let fsck read bad data because the raid doesn't yet recognize the correct one a degraded raid will not deliver broken data. and even if it does, one more reason not to check a degraded raid. There

Re: ARP responses broken!

2001-04-16 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: The second one is the valid one, but both interfaces seem to answer to the broadcasted packet with their own ARP addresses. it is because the kernel does not know if both interfaces are on one subnet, or not. The easisets thing to solve this is t use the

Re: ARP responses broken!

2001-04-17 Thread Bernd Eckenfels
but why would you want it to reply for the IP of the other interface even if it was NOT on the same subnet? Because Linux is always answering to all its local IP addresses, regardless of the Network interface. Even if you tun off the IP Forwarding. This is by Designs, there are situation

Re: ZFS with Linux: An Open Plea

2007-04-16 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: I meant that the central requirement on the design and implementation of audio subsystems is an (ideally guaranteed) bounded maximum of latencies; and that's exactly the major point where I heard that there are problems with ALSA driver components in

Re: ZFS with Linux: An Open Plea

2007-04-16 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Unfortunatelle Latency is critical for a number of critical applications like databases or file based transaction systems (mail, news) - mainly the users of fsync(). Whether you mix audio in userspace or kernel does not impact latency - you still need

Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]

2007-04-19 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Top (VCPU maybe?) User Process Thread The problem with that is, that not all Schedulers might work on the User level. You can think of Batch/Job, Parent, Group, Session or namespace level. That would be IMHO a generic Top, with no

Re: AppArmor FAQ

2007-04-19 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Perhaps -- until your httpd is compromised via a buffer overflow or simply misbehaves due to a software or configuration flaw, then the assumptions being made about its use of pathnames and their security properties are out the window. Hu? Even a

Re: [REPORT] cfs-v4 vs sd-0.44

2007-04-24 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Could you explain for the audience the technical definition of fairness and what sorts of error metrics are commonly used? There seems to be some disagreement, and you're neutral enough of an observer that your statement would help. And while we are at

yes --help (was: [PATCH] Sanitize filesystem NLS handling)

2007-03-19 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: 2) Output of yes --help from the same terminal Question: what do you expect? # yes --version #yes (GNU coreutils) 5.2.1 #Written by David MacKenzie. # #Copyright (C) 2004 Free Software Foundation, Inc. #This is free software; see the source for copying

Re: If not readdir() then what?

2007-04-10 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Otherwise, the client would have to cache _all_ previous READDIR results since the last opendir()/rewinddir() in order to be able to do its own loop detection and that will obviously never scale for large directories or for directories that change

Re: [Announce] [patch] Modular Scheduler Core and Completely Fair Scheduler [CFS]

2007-04-15 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: A development process like this is likely to exclude smart people from wanting to contribute to Linux and folks should be conscious about this issues. Nobody is excluded, you can always have a next iteration. Gruss Bernd - To unsubscribe from this list:

Re: The ext3 way of journalling

2008-01-13 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Just to clarify, I had about 60 days of uptime, and hence at least 60 days since the last FS check/mount/etc., when Linux crashed those few days ago, and wanted to start checking disks with 9192 days since last file system check. This, however sounds

Re: RFC: A revised timerfd API

2007-09-22 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: 1. This design stretches the POSIX timers API in strange ways. Maybe it is possible to reimplement the POSIX API in usermode using the kernel's FD implementation? (and drop the posix support from kernel) Gruss Bernd - To unsubscribe from this list:

Re: memset as memzero

2007-09-22 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: it doesn't add value memset with a constant 0 is just as fast (since the compiler knows it's 0) than any wrapper around it, and the syntax around it is otherwise the same. it would however allow easier changing if you need to add a page cleaning

Re: Out of memory management in embedded systems

2007-10-01 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Make kernel configuration option? (e.g. disable over commit mis-feature :-) # egrep . /proc/sys/vm/overcommit_* /proc/sys/vm/overcommit_memory:0 /proc/sys/vm/overcommit_ratio:50 Gruss Bernd - To unsubscribe from this list: send the line unsubscribe

Re: NFS4 authentification / fsuid

2007-09-07 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: So you can't draw any relationships between Protect the end-user with Protect the device FROM the end-user, the former can be done very reliably to whatever level of risk-reduction you need and the latter can't practically be done at all. Unless

Re: unfamiliar notation

2007-09-09 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: What's the deal with the underscore and the parentheses surrounding the call to menu_get_help? it is a macro from gettext, used to translate the string. Usually this should only be used on string constants. Gruss Bernd - To unsubscribe from this list:

Re: do_coredump and O_NOFOLLOW

2007-08-15 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: I found that O_NOFOLLOW is used for opened core file in Linux 2.6.10. I think that is for security reasons, otherwise one has to (atomically) check who is the owner of the symlink and where it points to. If you dont have hostile users on your system you

Re: [REPORT] cfs-v4 vs sd-0.44

2007-04-28 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: a) it may do so for a short and bound time, typically less than the maximum acceptable latency for other tasks if you have n threads in runq and each of them can have md (d=max latency deadline) overhead, you will have to account on d/n slices. This

Re: Linux 2.6.21

2007-04-29 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: You can't have it even do a search to see if it already has something similar without creating an account and logging in. Since I'm out of wall space, and the missus is bugging me to paint over all that, I left. Well, thats not a bugzilla problem.

Re: Linux 2.6.21

2007-04-29 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: If it is considered useful it shouldn't be a problem to automatically forward all incoming Bugzilla bugs to linux-kernel. Yes, most of it to linux-kernel, some components (netdev@, architecture) to a more specific list. Gruss Bernd - To unsubscribe from

Re: more git updates..

2005-04-09 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Ralph wrote: Watch out for when xargs invokes do_something more than once and the `' is parsed by a different one than the `'. It will take a pretty long list to do that. It seems that GNU xargs on top of a Linux kernel has a 128 KByte ARG_MAX. In the

Re: more git updates..

2005-04-10 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: (I repeat the xxx in the leaf name - easier to code.) It is a bit OT, but just a note: there are file systems (hash functions) out there who dont like a lot of files named the same way. For example NTFS with the 8.3 short names. Greetings Bernd - To

Re: [PATCH encrypted swsusp 1/3] core functionality

2005-04-13 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: The ssh keys are *encrypted* in the swap when dmcrypt is used. When the swap runs over dmcrypt all writes including those from swsusp are encrypted. The problem is that after an resume the running system has access to the swap, because the key is

Re: [PATCH encrypted swsusp 1/3] core functionality

2005-04-13 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: The dmcrypt swap can only be unlocked by the user with a passphrase, which is analogous to how you unlock your ssh private key stored on the disk using a passphrase. We talk about the unlocked system getting hacked. However I am not why the hacker would

Re: More performance for the TCP stack by using additional hardware chip on NIC

2005-04-17 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: maybe one day you would be able to offload your firewall and policy router too :) There are quite a few filtering NICs out there. Greetings Bernd - To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to [EMAIL

Re: Why Ext2/3 needs immutable attribute?

2005-04-17 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Why not simply unset the write bit for all three groups of users? That seems to be enough to prevent file modification. # touch test # chmod a-w test # echo test test # cat test test Because this does not protect against writes from root and it does

Re: Why Ext2/3 needs immutable attribute?

2005-04-17 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Yes. I know, with immutable, even root cannot modify sensitive files. What I am curious is if an intruder has root access, he may have many ways to turn off the immutable protection and modify files. If you secure your system correctly (i.e make

Re: Why Ext2/3 needs immutable attribute?

2005-04-17 Thread Bernd Eckenfels
On Sun, Apr 17, 2005 at 07:48:50PM -0400, Xin Zhao wrote: any kernel level protection, including SELinux, could be disabled after the kernel is compromised. Am I missing some points here? No, Immutable bit is an application of capabilities (or securelevel), you are right. If the kernel is

Re: a 15 GB file on tmpfs

2005-07-22 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: The machine we plan to buy is a HP Proliant Xeon machine and I want to run a 32 bit linux kernel on it (the xeon we want doesn't have the 64-bit stuff yet) You cant have 16GB of Memory with 32bit CPUs. Bernd - To unsubscribe from this list: send the

Re: a 15 GB file on tmpfs

2005-07-22 Thread Bernd Eckenfels
On Fri, Jul 22, 2005 at 01:00:18PM +0200, Stefan Smietanowski wrote: You cant have 16GB of Memory with 32bit CPUs. PAE CONFIG_HIGMEM64G Supports a 36bit address space, which Xeons do support. Yes right, I was just not aware recent hardware (still) supports that. I mean even mit 2MB modules

Re: RTC Timezone

2005-07-24 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: My RTC clock is set to the local timezone. However, when I boot linux using the -b option, to stop by a shell before the bootscripts begin, the clock is exaclty two hours ahead. The problem is that the clock is correct, but the timezone of your system

Re: ia64 git pull

2005-04-21 Thread Bernd Eckenfels
In article [EMAIL PROTECTED] you wrote: Why? Because I'm still using the stupid get all objects thing when I pull. one could do a symlink/hardlink parallel tree for a specific snapshot with GIT tools, and then only poll that with git-unaware copy tools. I guess this would make sense for the

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