Re: Usage of files for config
Srinivas [EMAIL PROTECTED] writes: I would like to know the usage of files and files.[arch] in sys/conf. files and options are used to determine which source files should be included and which preprocessor macros should be defined according to the device and option lines in the kernel config. However, as a beginner of freebsd kernel, I would recommend that you spend your time reading (and writing or modifying) source code, not trying to understand the Makefiles. DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
7.0R amd does not unmount USB-based UFS
Hello, I'm using the amd to mount CDFS and MSDOSFS on USB without any kind of problems for years; now I formated a new USB key with UFS, added the config in amd's map and encounter that it does not unmount the file system after the configured time of 20 secs: any idea? thanks in advance; matthias details: # cat /etc/amdmaps/amd.ufs ufs type:=ufs;fs:=/mnt/ufs;dev:=/dev/da0s1a;opts:=rw # tail -f /var/log/amd Oct 30 12:06:04 rebelion amd[23331]/info: /f: disabling nfs congestion window Oct 30 12:06:04 rebelion amd[23328]/info: initializing amd.conf map /etc/amdmaps/amd.usb of type file Oct 30 12:06:04 rebelion amd[23328]/info: first time load of map /etc/amdmaps/amd.usb succeeded Oct 30 12:06:04 rebelion amd[23328]/info: /etc/amdmaps/amd.usb mounted fstype toplvl on /u Oct 30 12:06:04 rebelion amd[23328]/info: initializing amd.conf map /etc/amdmaps/amd.cdrom of type file Oct 30 12:06:04 rebelion amd[23328]/info: first time load of map /etc/amdmaps/amd.cdrom succeeded Oct 30 12:06:04 rebelion amd[23328]/info: /etc/amdmaps/amd.cdrom mounted fstype toplvl on /a Oct 30 12:06:04 rebelion amd[23328]/info: initializing amd.conf map /etc/amdmaps/amd.ufs of type file Oct 30 12:06:04 rebelion amd[23328]/info: first time load of map /etc/amdmaps/amd.ufs succeeded Oct 30 12:06:04 rebelion amd[23328]/info: /etc/amdmaps/amd.ufs mounted fstype toplvl on /f entering the dir /f/ufs mounts the FS: Oct 30 12:08:02 rebelion amd[23328]/map: Trying mount of /dev/da0s1a on /f/usf fstype ufs Oct 30 12:08:02 rebelion amd[23328]/info: /dev/da0s1a mounted fstype ufs on /mnt/ufs here another example of entering /a/cdrom which gets unmounted after 20 secs: Oct 30 12:54:49 rebelion amd[23328]/map: Trying mount of /dev/acd0 on /a/cdrom fstype cdfs Oct 30 12:54:50 rebelion amd[23328]/error: /cdrom: mount: Input/output error Oct 30 12:54:50 rebelion amd[23328]/error: mount_cdfs: Input/output error Oct 30 12:54:59 rebelion amd[23328]/map: Trying mount of /dev/acd0 on /a/cdrom fstype cdfs Oct 30 12:55:00 rebelion amd[23328]/info: /dev/acd0 mounted fstype cdfs on /cdrom Oct 30 12:55:20 rebelion amd[23328]/info: /dev/acd0 unmounted fstype cdfs from /cdrom the UFS stays mounted forever: $ mount /dev/ad4s1a on / (ufs, local) devfs on /dev (devfs, local) /dev/ad4s1e on /tmp (ufs, local, soft-updates) /dev/ad4s1f on /usr (ufs, local, soft-updates) /dev/ad4s1d on /var (ufs, local, soft-updates) [EMAIL PROTECTED]:/u on /u (nfs) [EMAIL PROTECTED]:/a on /a (nfs) [EMAIL PROTECTED]:/f on /f (nfs) /dev/da0s1a on /mnt/ufs (ufs, local) a umount by hand helps: # umount /mnt/ufs # mount /dev/ad4s1a on / (ufs, local) devfs on /dev (devfs, local) /dev/ad4s1e on /tmp (ufs, local, soft-updates) /dev/ad4s1f on /usr (ufs, local, soft-updates) /dev/ad4s1d on /var (ufs, local, soft-updates) [EMAIL PROTECTED]:/u on /u (nfs) [EMAIL PROTECTED]:/a on /a (nfs) [EMAIL PROTECTED]:/f on /f (nfs) -- Matthias Apitz Manager Technical Support - OCLC GmbH Gruenwalder Weg 28g - 82041 Oberhaching - Germany t +49-89-61308 351 - f +49-89-61308 399 - m +49-170-4527211 e [EMAIL PROTECTED] - w http://www.oclc.org/ http://www.UnixArea.de/ b http://gurucubano.blogspot.com/ A computer is like an air conditioner, it stops working when you open Windows Una computadora es como aire acondicionado, deja de funcionar si abres Windows ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
process hibernation and process descriptor table
hi guys i am doing a project on process hibernation. i am new to linux and i want u to tell me how can i print the contents of a process descriptor table. i had a look at the softwares like cryopid and BLCR but i am not able to get it at this stage. Any suggestions about how i should go about the project. Aniket Pansare ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: process hibernation and process descriptor table
aniket pansare [EMAIL PROTECTED] writes: i am new to linux and i want u to tell me how can i print the contents of a process descriptor table. You should probably ask some Linux people. DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
open(2) and O_NOATIME
I've recently been reading about Linux's O_NOATIME flag to open(2), and I'm curious why we haven't implemented this. There seem to be a lot of good reasons to implement such a thing. Chances are it's due to lack of time/interest, which is expected, but I was wondering if there were other reasons. I realise mount's noatime trumps this, but there are lots of scenarios where atime is desired as a default, but disabled in specific cases. -- | Jeremy Chadwickjdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: process hibernation and process descriptor table
Hello, This list is unrelated to linux, it was designed for technical discussion concerning the FreeBSD operating system: www.freebsd.org. If you are looking for linux help I recommend you check kernel.org for documentation and online forums. On 10/30/08, aniket pansare [EMAIL PROTECTED] wrote: hi guys i am doing a project on process hibernation. i am new to linux and i want u to tell me how can i print the contents of a process descriptor table. i had a look at the softwares like cryopid and BLCR but i am not able to get it at this stage. Any suggestions about how i should go about the project. Aniket Pansare ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED] -- /jT http://git.zen-sources.org/?p=kernel/zenmm.git;a=summary ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
memtest86+ can not link: binutils issue?
0. FreeBSD 7.1-PRERELEASE r184195 i386 $ ld -v GNU ld version 2.15 [FreeBSD] 2004-05-23 1. obtain and extract http://www.memtest.org/download/2.01/memtest86+-2.01.bin.gz 2. run gmake: $ gmake gcc -E -traditional head.S -o head.s as -32 -o head.o head.s gcc -c -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -fno-strict-aliasing reloc.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o main.o main.c gcc -c -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding test.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o init.o init.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o lib.o lib.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o patn.o patn.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o screen_buffer.o screen_buffer.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o config.o config.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o linuxbios.o linuxbios.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o memsize.o memsize.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o pci.o pci.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o controller.o controller.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o random.o random.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o extra.o extra.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o spd.o spd.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o error.o error.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o dmi.o dmi.c ld --warn-constructors --warn-common -static -T memtest_shared.lds \ -o memtest_shared head.o reloc.o main.o test.o init.o lib.o patn.o screen_buffer.o config.o linuxbios.o memsize.o pci.o controller.o random.o extra.o spd.o error.o dmi.o \ ld -shared -Bsymbolic -T memtest_shared.lds -o memtest_shared head.o reloc.o main.o test.o init.o lib.o patn.o screen_buffer.o config.o linuxbios.o memsize.o pci.o controller.o random.o extra.o spd.o error.o dmi.o head.o(.text+0x7): In function `startup_32': : undefined reference to `_GLOBAL_OFFSET_TABLE_' Segmentation fault (core dumped) gmake: *** [memtest_shared] Error 139 Not only linking fails, but ld even crashes. Things are more complicated than usual because of the custom linker script memtest_shared.lds. The same compiles/links nicely on Fedora 9. $ ld -v GNU ld version 2.18.50.0.6-5.fc9 20080403 Can anybody suggest anything about this problem? If somebody is working on newer version of binuitls for FreeBSD I can help as a tester. -- Andriy Gapon ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: memtest86+ can not link: binutils issue?
On 2008-Oct-30 18:08:35 +0200, Andriy Gapon [EMAIL PROTECTED] wrote: 1. obtain and extract http://www.memtest.org/download/2.01/memtest86+-2.01.bin.gz This is a compressed bootable image and can't be compiled. Possibly you mean http://www.memtest.org/download/2.01/memtest86+-2.01.tar.gz 2. run gmake: $ gmake gcc -E -traditional head.S -o head.s as -32 -o head.o head.s gcc -c -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -fno-strict-aliasing reloc.c gcc -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding -fPIC -c -o main.o main.c gcc -c -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding test.c Blows up at this point for me: gcc -c -Wall -march=i486 -m32 -Os -fomit-frame-pointer -fno-builtin -ffreestanding test.c test.c:14:20: error: sys/io.h: No such file or directory test.c: In function 'beep': test.c:1410: warning: implicit declaration of function 'outb_p' test.c:1410: warning: implicit declaration of function 'inb_p' test.c:1417: warning: implicit declaration of function 'outb' gmake: *** [test.o] Error 1 I can't find sys/io.h in CVS or any declarations for outb_p or inb_p in my source tree. ld --warn-constructors --warn-common -static -T memtest_shared.lds \ -o memtest_shared head.o reloc.o main.o test.o init.o lib.o patn.o screen_buffer.o config.o linuxbios.o memsize.o pci.o controller.o random.o extra.o spd.o error.o dmi.o \ ld -shared -Bsymbolic -T memtest_shared.lds -o memtest_shared head.o reloc.o main.o test.o init.o lib.o patn.o screen_buffer.o config.o linuxbios.o memsize.o pci.o controller.o random.o extra.o spd.o error.o dmi.o head.o(.text+0x7): In function `startup_32': : undefined reference to `_GLOBAL_OFFSET_TABLE_' Segmentation fault (core dumped) gmake: *** [memtest_shared] Error 139 I can't help here. _GLOBAL_OFFSET_TABLE_ is related to the binutils PIC support and it appears that the linker doesn't like the code (in head.S) is explicitly referencing it. Not only linking fails, but ld even crashes. I agree this shouldn't happen. Can anybody suggest anything about this problem? It looks like stand-alone PIC code on FreeBSD needs some different incantations to Linux. My understanding is that several of the i386 bootstraps are relocatable so you might like to peruse the code in /usr/src/sys/boot/i386 for ideas. -- Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. pgpmHMDH1fDJe.pgp Description: PGP signature
Re: open(2) and O_NOATIME
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jeremy Chadwick wrote: I've recently been reading about Linux's O_NOATIME flag to open(2), and I'm curious why we haven't implemented this. There seem to be a lot of good reasons to implement such a thing. Chances are it's due to lack of time/interest, which is expected, but I was wondering if there were other reasons. I realise mount's noatime trumps this, but there are lots of scenarios where atime is desired as a default, but disabled in specific cases. Em... Allowing administrators to disable NOATIME would be a good thing, but wouldn't allowing arbitrary program to decide whether atime should be changed, be a serious security disaster? Disclaimer: I'm not a big atime fan myself, actually I disable atime on a lot of my servers for performance reasons :) Cheers, - -- Xin LI [EMAIL PROTECTED] http://www.delphij.net/ FreeBSD - The Power to Serve! -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkkKaooACgkQi+vbBBjt66CImQCgj51GGHXFaGhsFk4fAAWhmfV5 +s4An2Hn2TCVhqXEpzEL3xNwxy6YE84M =n7f/ -END PGP SIGNATURE- ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: open(2) and O_NOATIME
On Thu, Oct 30, 2008 at 07:16:42PM -0700, Xin LI wrote: Em... Allowing administrators to disable NOATIME would be a good thing, but wouldn't allowing arbitrary program to decide whether atime should be changed, be a serious security disaster? Think of backup programs. Joerg ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: open(2) and O_NOATIME
On Thu, Oct 30, 2008 at 07:16:42PM -0700, Xin LI wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jeremy Chadwick wrote: I've recently been reading about Linux's O_NOATIME flag to open(2), and I'm curious why we haven't implemented this. There seem to be a lot of good reasons to implement such a thing. Chances are it's due to lack of time/interest, which is expected, but I was wondering if there were other reasons. I realise mount's noatime trumps this, but there are lots of scenarios where atime is desired as a default, but disabled in specific cases. Em... Allowing administrators to disable NOATIME would be a good thing, but wouldn't allowing arbitrary program to decide whether atime should be changed, be a serious security disaster? How? There's only one condition I can think of: where a system administrator is, for some reason, relying upon atimes as a form of proof of something bad happening (which is a horrible concept in general, being as the amount of false positives seen would be tremendous; using atime as a security auditing method is stupid). If that's what you were referring to, then possibly making O_NOATIME only to root would be a suitable compromise. Disclaimer: I'm not a big atime fan myself, actually I disable atime on a lot of my servers for performance reasons :) I can't disable atime on any systems I maintain, because they all provide access to classic UNIX mbox spools where atime is used to determine if new mail has arrived. The instant filesystem-level backups run, atime is lost, and users have no way of knowing if they have new mail or not. Switching to Maildir is an option, but the performance hit of readdir() + stat() on thousands of files is tremendous (which is why mail clients like mutt have features like header caching via Oracle/Sleepycat DB). Anyway, I just was reading about it and realise that a lot of backup solutions out there can make use of O_NOATIME if available, which it isn't on FreeBSD. -- | Jeremy Chadwickjdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB | ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
