search for: kernelnewbies

...Subhendu Ghosh wrote: > > Hi > > > > Couple of questions around macvtap direct usage: > > > > 1) is the document here current? > > https://libvirt.org/formatnetwork.html#examplesDirect > > Yes. None of that has changed in any major way in many years. > kernelNewbies documents mactap bridge as VMs can host can all talk to each other without an external bridge External bridge/switch is only needed for VEPA mode with hairpin. https://virt.kernelnewbies.org/MacVTap Perhaps the original development of macvtap to support VEPA influenced the early docs and was neve...

Hello, We are running rsync version 2.5.6 on a slackware (version 9.0-beta) linux server. This server is basicly a ftp server (96 sessions max) and a rsync (rsync --daemon) server (25 connections max). The server keeps on crashing and after many ours of hardware/software trouble shooting the crashes appear to be related to the rsync processes. If I turn off rsync --daemon the server runs

I asked this a few weeks ago but didn''t get a response, so at the risk of being a nag, I''ll abbreviate and restate. I know there are other Xen specific debuggers, but I want to know if there''s any reason why SGI''s kdb, http://oss.sgi.com/projects/kdb, should not be included in a dom0 pv-ops kernel? While the patches apply cleanly and build, the result is that

...userland moved in commit 69c8f52b. This causes the following message to be emitted when building klibc (which is designed to use kernel headers explicitly): /usr/local/src/git/linux-2.6//include/linux/types.h:13:2: warning: #warning "Attempt to use kernel headers from user space, see http://kernelnewbies.org/KernelHeaders" In order to silence this warning, make sure we define __EXPORTED_HEADERS__ when building klibc userland. Signed-off-by: Mike Waychison <mikew at google.com> --- scripts/Kbuild.klibc | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/scripts/Kb...

...called a 'fakeraid'. So, I've been trying to determine if any recent kernels support this chip. Using google.com/linux, I found lots of hits dating about 2002 - 04, and referencing the 2.4 kernel (which had the driver compiled into it). But, nothing newer. I checked kernel.org and kernelnewbies.org - I see that raid-1 is supported. But, I can't find any reference to this chip. How can I find out what drivers are compiled into a given kernel? Or, basically what hardware a given kernel supports?

...ing up on these threads: - https://marc.info/?l=kvm&m=151929803301378&w=2 - http://www.openwall.com/lists/kernel-hardening/2018/02/22/18 I lost the original emails so I couldn't reply to them, and also sorry for being late, it was the end of semester exams. I was adviced on #qemu and #kernelnewbies IRCs to ask here as it will help having better insights. To wrap things up, the basic design will be a method for communication between host and guest is guest can request certain pages to be read only, and then host will force them to be read-only by guest until next guest reboot, then it will im...

...ing up on these threads: - https://marc.info/?l=kvm&m=151929803301378&w=2 - http://www.openwall.com/lists/kernel-hardening/2018/02/22/18 I lost the original emails so I couldn't reply to them, and also sorry for being late, it was the end of semester exams. I was adviced on #qemu and #kernelnewbies IRCs to ask here as it will help having better insights. To wrap things up, the basic design will be a method for communication between host and guest is guest can request certain pages to be read only, and then host will force them to be read-only by guest until next guest reboot, then it will im...

Hello list, I am very much new to Virtualization.But i want to study and test Virtualization.Can any one suggest me the web links from where i can start. I want to learn from basic to advanced concepts of VT. Thanks in advance for your reply

hi, all you know in the linux userspace , i can compile and run the following program to get the name or inode number of the files in the /bin directory. i want to know how to do this in linux kernelspace ? thank you very much! /*********************************************************************/ #include <unistd.h> #include <sys/stat.h> #include <stdio.h> #include

hi, all you know in the linux userspace , i can compile and run the following program to get the name or inode number of the files in the /bin directory. i want to know how to do this in linux kernelspace ? thank you very much! /*********************************************************************/ #include <unistd.h> #include <sys/stat.h> #include <stdio.h> #include

Hi Couple of questions around macvtap direct usage: 1) is the document here current? https://libvirt.org/formatnetwork.html#examplesDirect I have been able to get host to guest network traffic without any special configuration or switch since Fedora 28 when I first started using it. Using <forward mode=vepa> requires switch port mirroring, but just using <forward mode=bridge>

H. Peter Anvin dixit: >You should be using the output of "make headers_install" to build klibc. Hm. Can we catch that somehow? Like? #ifdef using_uninstalled_kernel_headers # error Go RTFM! #endif ? in the klibc sources, centrally somewhere? Ideally, a klibc header that?d also be included when using klcc to build some? thing, so that both klibc-build time and klibc-use time would

Hello CentOS users, Currently I have compiled kernel version 4.19.37, which the source is from kernel.org. I compiled the kernel by following steps: - get the kernel tarball and unpack it - install prerequisties as described in https://wiki.centos.org/HowTos/Custom_Kernel (in addition bc and openssl-devel) - copy the kernel configuration: $ cp /boot/config-3.10.0-957.21.3.el7.x86_64

Keith Roberts, Thank you for your suggestion about doing a grep of the source code. We found mmap.S in ../sysdeps/unix/sysv/linux/i386. We looked in mmap.S and found a lot of assembly code. Could you please tell us if any of the assembly code call the kernel syscall handler for mmap.s? Also, we ran make for the kernel Makefile and we obtained the following result shown below. Could you please

...ps://marc.info/?l=kvm&m=151929803301378&w=2 > - http://www.openwall.com/lists/kernel-hardening/2018/02/22/18 > > I lost the original emails so I couldn't reply to them, and also sorry > for being late, it was the end of semester exams. > > I was adviced on #qemu and #kernelnewbies IRCs to ask here as it will > help having better insights. > > To wrap things up, the basic design will be a method for communication > between host and guest is guest can request certain pages to be read > only, and then host will force them to be read-only by guest until > next...

...replace stock version > (3.10.0-957.21.3.el7). Is it safe to continue installing from compiled RPM package above, or install kernel manually? In general, you want to keep the distro's kernel-headers unless you also plan to play with glibc. You may find the following article useful: https://kernelnewbies.org/KernelHeaders Akemi

Hello, I''d understand if setting CONFIG_NO_HZ=y in dom0/domU is required/suggested. Because Xen supports no-tick-on-idle mechanism ( http://virt.kernelnewbies.org/ParavirtBenefits#head-360a0849a0639297396542dddcc691e4100287ab) ticks come from the hypervisor only when needed by the guest so, in my understanding, setting CONFIG_NO_HZ=n will make no difference. Any comments? Regards, Marco _______________________________________________ Xen-users mailing...

All, Can anyone provide me a link to the patches necessary for a 2.4.x kernel to run (and, hopefully, a listing of the version(s) of other utilities that are required)? Sorry to ask such a ridiculous question on a mailing list, but the stuff @ redhat is for the 2.2.x kernel, and I can't seem to find much in the way of a home page/ftp site/anything. Thanks in advance. Derek R. --

...igure) on a box with a broken coreutils install i got: Setting up logcheck (1.2.32+1.2.33rc1) ... /var/lib/dpkg/info/logcheck.postinst: 87: touch: not found i guess it's harmless, just sending out as note, reinstall of coreutils + logcheck worked. ;-) -- maks kernel janitor http://janitor.kernelnewbies.org/ personal weblog http://www.sternwelten.at/weblog.shtml

Greetings, Running FC3, kernel 2.6.9-1.667.i686, Samba v 3.0.11. I have been able to guts up Samba by adding a procedure to /etc/rc.d/rc.local, but I can't get the system to start from the /etc/rc.d/rcx.d directories. I have an smb script in /etc/rc.d/init.d that is soft-linked from the rcx.d directories, and that runs just fine when I invoke it from the command line, but apparently the