Re: Disabling ethernet link on an Intel nic?
11.08.2012 20:35, David Duchscher пишет: Greetings, I have a need to turn off the link of an ethernet port on a Intel nic. The issue is not a big deal but one we would like to solve. we have no way of signaling an upstream router that a path is down but via turning off the link of the ethernet port. This would only be used when something goes wrong. The hope is that we could automate some problems and handle other situations remotely avoiding having to visit the system in person. Any thoughts? We can modify the system so if it means modifying the driver or some other code, I am willing to try. Just need a little direction. Thanks for your time, I made such patch a couple of years ago and run it in production with copper-based em(4) and igb(4) NICs. The patch introduces new sysctls like dev.em.X.down_disables_link and dev.igb.X.down.disables_link with default zero values. Setting sysctl dev.em.0.down_disables_link=1 makes ifconfig em0 down bring link down. http://www.grosbein.net/freebsd/patches/em_sysctl-8.3.diff.gz http://www.grosbein.net/freebsd/patches/igb_sysctl-8.3.diff.gz ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: /etc/resolv.conf getting over written with dhcp
15.06.2012 19:09, Varuna пишет:
About 2***, so what are the conditions to be true to figure out that
/etc/resolv.conf has not changed?
There is simple solution: create file /etc/dhclient-enter-hooks
and override add_new_resolv_conf() there to do nothing:
add_new_resolv_conf() {
return 0
}
Works just fine for my systems.
Eugene Grosbein
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Re: Kernel threads inherit CPU affinity from random sibling
24.02.2012 18:45, Attilio Rao пишет: I have the pathological test-case for it: http://www.freebsd.org/cgi/query-pr.cgi?pr=165444 A fix has been committed as r230984, it should apply to STABLE_9/8 too, can you try it? Attilio I will try but I already run my patch for netisr, so it would be difficult to see what helps :-) ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Kernel threads inherit CPU affinity from random sibling
28.01.2012 20:22, Attilio Rao пишет: 2012/1/28 Ryan Stone ryst...@gmail.com: On Fri, Jan 27, 2012 at 10:41 PM, Attilio Rao atti...@freebsd.org wrote: I think what you found out is very sensitive. However, the patch is not correct as you cannot call cpuset_setthread() with thread_lock held. Whoops! I actually discovered that for myself and had already fixed it, but apparently I included an old version of the patch in the email. Hence this is my fix: http://www.freebsd.org/~attilio/cpuset_root.patch Oh, I do like this better. I tried something similar myself but abandoned it because I misread how sched_affinity() was implemented by 4BSD(I had gotten the impression that once TSF_AFFINITY is set it could never be cleared). Do you have a pathological test-case for it? Are you going to test the patch? I have the pathological test-case for it: http://www.freebsd.org/cgi/query-pr.cgi?pr=165444 Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Kernel threads inherit CPU affinity from random sibling
24.02.2012 19:05, Attilio Rao пишет: 2012/2/24, Eugene Grosbein eu...@grosbein.pp.ru: 24.02.2012 18:45, Attilio Rao пишет: I have the pathological test-case for it: http://www.freebsd.org/cgi/query-pr.cgi?pr=165444 A fix has been committed as r230984, it should apply to STABLE_9/8 too, can you try it? Attilio I will try but I already run my patch for netisr, so it would be difficult to see what helps :-) Yes, I mean, can you back your patch out? Ok, I will. The effect is random, so it will take some time to make sure it works. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: dummynet(4) kernel process CPU usage monitoring
Hi! I need to draw graph of dummynet's CPU usage. procstat -t 0 shows me TID (thread id) of dummynet kernel thread. ps -Hxo time,lwp shows me total CPU time consumed by this thread. Now I see this time has 9 seconds increase during 60 seconds of real time. This should be 9/60=15% CPU usage, but top -SHP shows me 0.00% meantime. Where is my error? Please CC: me as I'm not in the list. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: dummynet(4) kernel process CPU usage monitoring
21.11.2011 23:37, Ryan Stone пишет: On Mon, Nov 21, 2011 at 1:23 AM, Eugene Grosbein eu...@grosbein.pp.ru wrote: Hi! I need to draw graph of dummynet's CPU usage. procstat -t 0 shows me TID (thread id) of dummynet kernel thread. ps -Hxo time,lwp shows me total CPU time consumed by this thread. Now I see this time has 9 seconds increase during 60 seconds of real time. This should be 9/60=15% CPU usage, but top -SHP shows me 0.00% meantime. Where is my error? Which version are you running? 8.1-RELEASE and older have the problem that the scheduler and the CPU statistics gatherer are driven from the same clock. For threads that tend to frequently wake up and run for less than a full tick(dummynet would appear to fall in this category) this means that CPU usage statistics are never captured at a point where those threads are running, so top shows 0% for those threads. I am told that some relatively recent timer-related work(eventtimer?) should have resolved the issue, which is definitely in 9.0 and might be in stable/8 and may even have made it into 8.2-RELEASE. I run 8.2-STABLE of 16 October. During most busy hours top shows some nonzero values but TIME obtained from ps(1) is still several times larger. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: dummynet(4) kernel process CPU usage monitoring
21.11.2011 15:30, Luigi Rizzo пишет: On Mon, Nov 21, 2011 at 01:23:22PM +0700, Eugene Grosbein wrote: Hi! I need to draw graph of dummynet's CPU usage. procstat -t 0 shows me TID (thread id) of dummynet kernel thread. ps -Hxo time,lwp shows me total CPU time consumed by this thread. Now I see this time has 9 seconds increase during 60 seconds of real time. This should be 9/60=15% CPU usage, but top -SHP shows me 0.00% meantime. apart from the scaling on number of cores (e.g. if you have 8 cores the 15% becomes a bare 2%) I have 4 cores (no hyperthreading) and it seems that top -SHP does not scale anything in this mode. remember that percentages are computed with some kind of filtering (EWMA ?) so if the load of dummynet threads is bursty, the filter might eat most of it. I do not understand what this filter is. Btw, dummynet load is steady here. not completely sure this explains a steady 0.00%, if that's is what you are seeing Yes, I see 0.00% except of hours of most load where top shows about 10% and ps shows about 30%. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: dummynet(4) kernel process CPU usage monitoring
Hi! I need to draw graph of dummynet's CPU usage. procstat -t 0 shows me TID (thread id) of dummynet kernel thread. ps -Hxo time,lwp shows me total CPU time consumed by this thread. Now I see this time has 9 seconds increase during 60 seconds of real time. This should be 9/60=15% CPU usage, but top -SHP shows me 0.00% meantime. Where is my error? Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Does anyone use nscd?
04.10.2011 22:47, Sean M. Collins пишет: I've never heard of the utility until you mentioned it. I'd nuke it, since really there are more popular alternatives like Redis and Memcached in the ports tree that most people will reach for first. Please look at http://www.freebsd.org/cgi/query-pr.cgi?pr=75855 before making final decision. ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: boot0sio waits a minute
On 08.02.2011 02:15, Trever wrote: Does anyone know why boot0sio would wait about 1 minute before proceeding? If this is a known issue I can't find anything about it. I know there is a bug with boot0cfg not changing the partition to boot to. Don't know if this is related. FreeBSD 8.2RC2 i386. Boot blocks were compiled with speed 115200. Installed via nanobsd to a compact flash card on an Habey 6620II Z530, but there doesn't seem to be anything wrong other than with boot0sio, or something with how nanobsd installs boot0sio (NOT boot0- that works). But I have checked what nanobsd is doing, that seems ruled out, seems fine. BIOS seems ruled out. Seems like boot0sio. Everything works in all manner of configurations, just this very annoying long hang before boot0sio runs. Again, boot0 does not do this. I'm not talking about the pause after it displays the boot partition selection options. It's before anything happens. I get a blinking underscore in the upper left hand corner of my screen (and nothing on the serial port) for a very long minute before the system boots. Doesn't matter if I have serial attached or not, etc.. I've seen this too. I do not known a reason. And since I do not use physical serial console I just replace boot0sio with boot0 while building NanoBSD and skip the problem :-) Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Querying bsnmpd through /var/run/snmpd.sock
Hi! bsnmpd running with mibII module opens local socket /var/run/snmpd.sock mentioned in snmp_mibII(3) manual page: The mibII module opens a socket that is used to execute all network related ioctl(2) functions. This socket is globally available under the name mib_netsock. How do I use the socket? I hope to be able to call mib_find_if_sys() function from another process using the socket. Is there a documentation for this? Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
syscall
Hi! I've written an utility in C that does not link libc normally, instead it includes sys/syscall.h and calls syscall(). It works nice for FreeBSD8/i386. Now I'm porting it to FreeBSD8/amd64 and just cannot find how to call syscall() directly from C code. For arm, i386 and mips there are: lib/libc/arm/sys/syscall.S lib/libc/i386/sys/syscall.S lib/libc/mips/sys/syscall.S What about amd64? Eugene Grosbein P.S. Please reply to the list. ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: syscall
On 18.10.2010 18:11, Kostik Belousov wrote:
On Mon, Oct 18, 2010 at 05:27:21PM +0700, Eugene Grosbein wrote:
Hi!
I've written an utility in C that does not link libc normally,
instead it includes sys/syscall.h and calls syscall().
It works nice for FreeBSD8/i386.
Now I'm porting it to FreeBSD8/amd64 and just cannot find
how to call syscall() directly from C code.
Show what you tried to do. Syscall() at the C-level works the same
(well, almost, but the differences are too subtle for this discussion)
for all architectures.
I'm prepearing a binary that would start before /sbin/init
to make just a couple of ioctl(MDIOCATTACH)/nmount system calls
then execve(/sbin/init). It has to be small in size for NanoBSD build.
Detailed explanation (in russian) and source code are available here:
http://dadv.livejournal.com/105161.html
In short:
#include sys/syscall.h
#define MESGHello, world!\n
#define MESG_SZ sizeof(MESG)-1
int syscall(const int n, ...);
#define _exit(a) syscall(SYS_exit, a)
#define write(a, b, c) syscall(SYS_write, a, b, c)
int errno;
int main() {
write(1,MESG,MESG_SZ);
_exit(0);
return 0; /* make compiler happy */
}
For arm, i386 and mips there are:
lib/libc/arm/sys/syscall.S
lib/libc/i386/sys/syscall.S
lib/libc/mips/sys/syscall.S
amd64 syscall() wrapper code is autogenerated.
What about amd64?
Indeed, what is your issue with amd64 ?
I cannot find a module to link with
to resolve syscall() symbol when I do not want to link with libc.
Eugene Grosbein
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Re: syscall
On 18.10.2010 18:11, Kostik Belousov wrote: For arm, i386 and mips there are: lib/libc/arm/sys/syscall.S lib/libc/i386/sys/syscall.S lib/libc/mips/sys/syscall.S amd64 syscall() wrapper code is autogenerated. It seems, it's written here: # less /usr/obj/usr/src/lib/libc/syscall.S #include compat.h #include SYS.h RSYSCALL(syscall) Well, I can just copy there three lines to ./syscall.S and add the file to gcc command line. Thanks. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: syscall
On 18.10.2010 18:41, Garrett Cooper wrote: Official work similar to this was just committed yesterday at SVN r214006. Cheers, -Garrett Thanks, interesting. ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Support for WD Advanced Format disks
On Wed, Aug 11, 2010 at 09:04:39AM +0300, Valentin Nechayev wrote: I'm looking into a clean, permanent solution for WD Green drives that use 4096-byte physical sectors. To summarize the information I've collected so far: There is attempt to look from another side - is it really needed? Captain Obvious says that if one have a new disk, it's easy to format it properly - i.e. not xxx*16*63 but aligned on 4KB boundary. For example, set up geometry xxx*64*32 for all new disks and align GPT partitions on 1MB boundary. As soon as FS requests in FreeBSD are no less than 4KB in size, this would satisfy any disk. If 4KB sectors are our future for a few next years, this shall be implemented anyway... Also, we have geom_cache for performance-sensetive setups anyway :-) Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: loader prompt: list / on other device
On 23.06.2010 23:03, rank1see...@gmail.com wrote: I've escaped to loader prompt: Current device is disk0s3a, from which this loader is running. My USB stick is device1 and device1s2a is UFS /, on which I would like to reach some file or simply list directory. Syntax? I guess, you have to change 'currdev' variable to point to right diskX Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: AHCI Driver on ICH7 (27c08086) Chipset
Ali Mashtizadeh wrote: Hi Everyone, I have a new motherboard with an ICH7 chipset (G41) and the ata driver recognizes it as ATA_I82801GB_S1 (PCI ID 27c08086), but this card does not seem to work with the AHCI. Can anyone point me to why this is the case? I really need NCQ working for this machine. http://www.intel.com/support/chipsets/imst/sb/cs-012304.htm In short: ICH7R and ICH7M both have AHCI support but ICH7 does not. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Email sent from at command going to the wrong account
Holger Kunst wrote: Hi, The at command sends an email with the output of the scheduled job. I've experienced inconsistent results when running jobs, receiving emails in accounts not associated with the user currently logged in. To reproduce in FreeBSD 7.2-RELEASE-p2 Case #1 login as user a (new shell through ssh) echo echo 1 | at now -- user a will receive an email containing 1 - this is as expected Case #2 login as user a (new shell through ssh) login as user b exit echo echo 1 | at now -- user b will receive an email containing 1 - this is not as expected, since I am user a again A look at the source for at reveals that at is getting the mailname from getlogin(). Running a small test program that outputs getlogin(), confirms the above behavior: A log-in and out of another account makes getlogin() return that account's name, even though the shell has been closed and we are back to the original shell and the original user a. Is this the intended behavior? Any hints would be appreciated. This is known long-standing bug. FreeBSD-4.9 was affected (may be earlier) and all versions after it: http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/61355 The PR has some kind of patch in the Audit-Trail. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: [patch] add pwait utility
On Fri, Nov 06, 2009 at 11:24:46PM +0100, Jilles Tjoelker wrote: I propose adding a small new utility to /usr/bin: pwait. Similar to the Solaris utility of the same name, it waits for any process to terminate. Some use cases I have in mind: * rc.subr's wait_for_pids. This is a cleaner and more efficient fix for PR conf/132766. In the rare case that /usr is not available, the old sleep(1) method can be used. * interactive use, e.g. to shut down the computer when some task is done even if the task is already running I've always missed such command exactly for later case :-) Vote for it. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: SIGUNUSED
On Sat, Nov 07, 2009 at 03:17:49AM +0100, Alexander Best wrote: as a side not: our own easyedit does exactly what you said wasn't a good programming style. ;) check line 554 of contrib/ee/ee.c: for (counter = 1; counter 24; counter++) signal(counter, SIG_IGN); Easy Editor is contributed software (now lives in contrib/). Such naive signgal handling had already hurt it in the past, f.e. plain ignore of SIGTTIN, SIGTTOU without sanity checks for STDIN_FILENO, STDOUT_FILENO made it CPU hog for 'ee file ' or 'ee /dev/null' in early versions. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Improving the kernel/i386 timecounter performance (GSoC proposal)
Prashant Vaibhav wrote: The primary idea is to improve the performance and resolution of gettimeofday() and friends by creating a efficient userspace implementation of these functions, along with some supporting modifications to the kernel. Are you aware of CLOCK_*_FAST family of timecounters present in FreeBSD 7.x? If not, you may want to take a look: http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/sys/time.h#rev1.71 Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Determine if a kernel is built with a specific option?
I was wondering how a autoconf configure script can determine if the kernel is built with a particular option. In this case the code I have can make use of the FreeBSD polling driver, which by default isn't built into a kernel. So I want my configure script to determine if the kernel supports it, if so sets a #define, otherwise doesn't. You should not assume that compiled code does not need polling support just because _buildbox_ doesn't have it enabled in time of build. If the code builds here, it does not mean it will run here. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: tcpdump filter for out/in traffic
On Sun, Jan 04, 2009 at 04:05:00PM +0200, KES wrote: There will be very usefull to have options for tcpdump to monitor incomint or outgoing traffic regardless of src/dst IPs or ports or protocol For example: kes# tcpdump -n -i rl4 out EXPECTED: show traffic outgoing on rl4 ACTUAL: tcpdump: syntax error kes# tcpdump -n -i rl4 in EXPECTED: show traffic incoming on rl4 ACTUAL: tcpdump: syntax error Hi! I use following trick for that: tcpdump -n -p -i rl4 ether src me-rl4 # for outgoing tcpdump -n -p -i tl4 not ether src me-rl4 # for incoming And add MAC-address of rl4 to /etc/ethers with name 'me-rl4' or just 'me' if you need not watch other interfaces this way. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: FreeBSD kernel Debugging tools for Virtual Memory Module
On Thu, Jan 01, 2009 at 06:27:44PM -0800, Kamlesh Patel wrote: I am working on Virtual Memory parts of FreeBSD OS. My Problem is, whenever i modify little code of vmpage.c file i need to build the whole kernel to check the modification and i even am not able to debug the kernel code. Could anyone please inform me kernel Debugging tools for FreeBSD OS? First, you need to recompile source you change for sure :-) But you have not rebuild all other files all the time. You need to add to your /etc/src.conf (or /etc/make.conf for 6.x and earlier): MODULES_WITH_WORLD=yes This will skip rebuilding of all modules during 'make buildkernel' but you MUST to copy all modules from /boot/kernel to /boot/modules (all files other than /boot/kernel/kernel*) if you do this. Otherwise, you'll lose modules and system may not boot due to missing vital modules like acpi.ko Then, if you do not change kernel config file, recompile your changes with command (only second time and then): cd /usr/src; make NO_KERNELDEPEND=yes NO_KERNELCLEAN=yes buildkernel So, your rebuild time changes drastically: no modules rebuild, no other sources rebuild other that you touched last time. It will relink previously compiled object code with your changes only, that's way much quicker. Reinstall kernel and reboot. Second, you should use some kind of virtual machine (like qemu from ports) to speedup your development cycle even more: install the system into virtual machine and you'll need not another box to debug the kernel and need not rebuild your development box. Test your changes with the system installed into VM and reboot it only. Use ddb or kgdb already noted here. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: forcefsck on booting stage
On Mon, Jul 28, 2008 at 04:11:49PM +0400, sam wrote: How to make 'fsck -f' on booting stage of remote system? echo '/sbin/fsck -y -f' /etc/rc.early ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: SCHED_4BSD bad interactivity on 7.0 vs 6.3
On Sun, Jul 13, 2008 at 03:11:23AM +0200, Kris Kennaway wrote: It seems like there has been a regression in interactivity from 6.3-RELEASE to 7.0-RELEASE when using the SCHED_4BSD scheduler. After upgrading my single-cpu amd64 box, 7.0 has much worse latency. When running a kernel compile, there is a noticeable lag to echo my typing or scroll my browser windows, and playing an mp3 frequently cuts out for a second or two. This did not happen on 6.3-RELEASE. Are you sure it's not the x.org server bug that was present in the version shipped with 7.0? No, it's not. I have exactly the same problem with SCHED_4BSD after upgrade from 6.3-STABLE to 7.0-STABLE. I didn't upgrade my x.org 6.9.0, only OS (all 6.x compat shims are installed). There is some sort of regression, certainly. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ntpd jail problem
On Sun, Jun 08, 2008 at 12:25:00PM +0100, [EMAIL PROTECTED] wrote: The problem is that the ntpd in the jail seems to believe that the host clock is out of sync (from what I can gather), even though it isn't. That's because ntpd won't blindly assume that your host has right time. If you make client/server connection between your two copies of NTP daemons, the server insures the client that time is right and client will serve your network just right. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Trying to support my product on BSD
On Fri, Jan 18, 2008 at 02:18:08PM +0530, navneet Upadhyay wrote: My product is successfully running on Linux( all most all versions) and HP- UX and Windows . *It is 100 % C++ code*. I am planning to support it on FreeBSD, i have two queries : 1. *How to build my code into binaries* on FreeBSD , i have my unix make files. Just to give an idea i have around 200 cpp files and they complile to 5 binaries . I am using multithreading(posix on linux) and sockets heavily. 2.* How to package the binaries*(RPM sort of thing). Idea is to provide a package to user who can install them binaries using this package by issuing single command. First, please read The Porter's Handbook: http://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/index.html If, after finishing, you still have a question, ask again :-) Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: building images for running from flash
On Wed, Jun 13, 2007 at 02:06:42AM -0400, Z.C.B. wrote: Just been looking at rebuilding my router. I understand building the image and etc, but the issue I am running into is what to do about ports. To solve this, I am looking at building the image and using mdconfig, unionfs, and jail to solve building ports. Also looking at the possibility of qemu. Any thoughts or suggestions? Another annoying issue is the muckery involved with /etc/make.conf... The issue I am running into that is the CPUTYPE? option is different for the build machine and router that the flash will be used on. Any nice way to deal with this? nanobsd(8) Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: building images for running from flash
On Wed, Jun 13, 2007 at 09:07:45AM -0400, Z.C.B. wrote: nanobsd(8) I am aware of it, but it does not cover what I need for either questions, except for possibly the make part. It does. Eugene ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: usb keyboard attach crashes process usb0 (under FreeBSD4.11)
On Tue, Apr 03, 2007 at 09:31:05AM +, Norbert Koch wrote: First of all, I understand that there is no interest here in solving FreeBSD 4.11 problems. I only post this because there may be a chance that this could be a problem in CURRENT too. (If no, may be someone likes to dive into ancient software bugs ;-) I am running an embedded system under FreeBSD 4.11. Sometimes after booting FreBSD the USB keyboard is not found and so not automatically attached by usbd. If I then unplug the keyboard and plug it in again the kernel crashes with page fault in process 3 (usb0). You didn't mention are you running 4.11-RELEASE or 4.11-STABLE. If you are using RELEASE then you definitely should try latest 4.11-STABLE, because there were lots of anti-panic fixes to RELENG_4 for USB subsystem aftere 4.11-RELEASE. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: usb keyboard attach crashes process usb0 (under FreeBSD4.11)
On Tue, Apr 03, 2007 at 11:37:31AM +, Norbert Koch wrote: You didn't mention are you running 4.11-RELEASE or 4.11-STABLE. If you are using RELEASE then you definitely should try latest 4.11-STABLE, because there were lots of anti-panic fixes to RELENG_4 for USB subsystem aftere 4.11-RELEASE. Eugene Grosbein The entry in my sup-file is RELENG_4_11, not RELENG_4_11_0_RELEASE. So I think this is 4.11-STABLE, isn't it? No, this is so-called '4.11-SECURITY' (unofficial name since some moment). You need RELENG_4 in sup-file to obtain 4.11-STABLE, not RELENG_4_11. I believe RELENG_4_11 has not mentioned fixes. Eugene ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Fwd: Abyssmal dump cache efficiency
On Thu, Feb 22, 2007 at 12:37:00PM -0500, Zaphod Beeblebrox wrote: Peter Jeremy wrote: I've found that you do get a worthwhile improvement in dump|restore performance by introducing a large (10's of MB) fifo between them. This helps reduce synchronisation between dump and restore (so that dump can continue to read whilst restore is busy writing a batch of small files and vice versa). There's a suitable port but I can't recall the name because I wrote my own. There are several. The most popular ones are probably misc/team and misc/buffer. I can certainly vouch for that , too. I generally use team 1m 32 (total of 32meg of buffer). Team seems to not want to buffer more than 1m per process and I think 32 is the max # of processes. Someone, please take a look at trivial patch for team's buffer size here: http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/106806 The maintainer timeout for the PR has occured long time ago. Eugene Grosbein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: WITNESS RELENG_6
On Thu, Jan 04, 2007 at 01:48:49PM +0200, Kostik Belousov wrote: I've tried. Now machine just hangs if I try to switch from X to vty. It stays in graphics mode locked. Does it crash when exiting glxgears/some video player ? It does not crash now when exiting glxgears but glxgears does not exit really, this process hangs in the devdrn state. mplayer hangs hard the whole system in the moment it switches to full-screen. When hangs, does it answer ping/allow ssh connections ? Can't check just now, but can establish serial console if you wish. Eugene ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: WITNESS RELENG_6
On Thu, Jan 04, 2007 at 12:37:08PM +0200, Kostik Belousov wrote: The problem is revealed by INVARIANTS option, not by WITNESS, and is definitely the use-after-free. in src/nvidia_dev.c, nvidia_dev_close(), that is cdevsw.d_close proc, the destroy_dev() is called. Please, apply rev. 1.199 of sys/kern/kern_conf.c. I expect that crashes shall stop, but non-killable processes (in the devdrn) state would accumulate. Please, confirm. I've tried to apply 1.199 to RELENG_6 but failed: one of three chunks has been rejected. Eugene ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: WITNESS RELENG_6
On Thu, Jan 04, 2007 at 01:02:08PM +0200, Kostik Belousov wrote:
Hmm, it needs 1.198 as well. Below is aggregated patch against RELENG_6.
Index: kern_conf.c
===
RCS file: /usr/local/arch/ncvs/src/sys/kern/kern_conf.c,v
retrieving revision 1.186.2.7
diff -u -r1.186.2.7 kern_conf.c
--- kern_conf.c 30 Oct 2006 15:43:56 - 1.186.2.7
+++ kern_conf.c 4 Jan 2007 10:59:33 -
@@ -676,16 +676,20 @@
dev-si_flags = ~SI_CLONELIST;
}
+ dev-si_refcount++; /* Avoid race with dev_rel() */
csw = dev-si_devsw;
dev-si_devsw = NULL; /* already NULL for SI_ALIAS */
while (csw != NULL csw-d_purge != NULL dev-si_threadcount) {
- printf(Purging %lu threads from %s\n,
- dev-si_threadcount, devtoname(dev));
csw-d_purge(dev);
msleep(csw, devmtx, PRIBIO, devprg, hz/10);
+ if (dev-si_threadcount)
+ printf(Still %lu threads in %s\n,
+ dev-si_threadcount, devtoname(dev));
+ }
+ while (dev-si_threadcount != 0) {
+ /* Use unique dummy wait ident */
+ msleep(csw, devmtx, PRIBIO, devdrn, hz / 10);
}
- if (csw != NULL csw-d_purge != NULL)
- printf(All threads purged from %s\n, devtoname(dev));
dev-si_drv1 = 0;
dev-si_drv2 = 0;
@@ -700,6 +704,7 @@
fini_cdevsw(csw);
}
dev-si_flags = ~SI_ALIAS;
+ dev-si_refcount--; /* Avoid race with dev_rel() */
if (dev-si_refcount 0) {
LIST_INSERT_HEAD(dead_cdevsw.d_devs, dev, si_list);
I've tried. Now machine just hangs if I try to switch from X to vty.
It stays in graphics mode locked.
Eugene
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Re: WITNESS RELENG_6
On Thu, Jan 04, 2007 at 02:12:45PM +0200, Kostik Belousov wrote: I've tried. Now machine just hangs if I try to switch from X to vty. It stays in graphics mode locked. Does it crash when exiting glxgears/some video player ? It does not crash now when exiting glxgears but glxgears does not exit really, this process hangs in the devdrn state. As expected. mplayer hangs hard the whole system in the moment it switches to full-screen. When hangs, does it answer ping/allow ssh connections ? Can't check just now, but can establish serial console if you wish. It would be better to check this in both cases (mplayer and return to vty). I've established ethernet and serial links with this box and checked. In both cases this is X server locked in devdrn state. All other processes and the kernel run just fine. But, most likely, the problem is in nvidia driver that calls destroy_dev() from d_close(). You should ask the vendor for the fix. As a side note, responsible engineer is aware of the bug. So, I need not bother him ones more? Eugene ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
WITNESS RELENG_6
Hi! I try to find bugs in 6.2-PRERELEASE by using it (q) :-) The question is: are kernel options WITNESS/WITNESS_KDB expected to be in usable kernel? I don't worry about performance overhead here. The problem is, I've found this is nearly impossible to run my home system with RELENG_6 build from yesterday's sources, X.org 6.9.0, mplayer etc. without panicing and crashdump generation after an hour or so. Just switch from X to vty and logon gave me another LOR and crashdump. One of these you can see here: http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/107455 Perhaps, I should not use these options for everyday STABLE use? Eugene ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: (feature change request) remove link-layer generated routes from netstat -r
On Wed, Feb 22, 2006 at 03:50:17PM +0200, Nikos Vassiliadis wrote:
netstat -r prints link-layer generated routes and many
times the output becomes somehow obscure. For
example:
[EMAIL PROTECTED]:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat# netstat
-ranfinet
Routing tables
Internet:
DestinationGatewayFlagsRefs Use Netif Expire
default10.1.1.244 UGS 031016rl0
10.1.1/24 link#1 UC 00rl0
10.1.1.181 00:0f:1f:fb:02:f5 UHLW10rl0
10.1.1.182 00:e0:fc:38:d4:40 UHLW10rl0
10.1.1.183 00:e0:fc:65:07:fd UHLW10rl0
10.1.1.244 00:50:fc:fe:74:3b UHLW21rl0
10.1.1.254 00:0c:cf:70:50:06 UHLW10rl0
127.0.0.1 127.0.0.1 UH 0 1117lo0
192.168.1 link#5 UC 00 fxp0
192.168.1.25 00:05:5d:4d:19:58 UHLW10 fxp0
192.168.1.45 00:11:43:b6:a1:55 UHLW10 fxp0
192.168.1.71 00:0c:f1:b9:38:50 UHLW1 1645 fxp0
192.168.1.84 00:04:23:af:79:66 UHLW10 fxp0
192.168.1.112 00:30:4f:21:3b:8a UHLW10 fxp0
192.168.1.196 00:07:e9:40:1f:c5 UHLW10 fxp0
192.168.1.199 00:e0:81:21:28:21 UHLW10 fxp0
192.168.1.200 00:30:4f:03:88:03 UHLW10 fxp0
when the information I was actually looking for is:
[EMAIL PROTECTED]:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat# netstat
-rnfinet
Routing tables
Internet:
DestinationGatewayFlagsRefs Use Netif Expire
default10.1.1.244 UGS 031016rl0
10.1.1/24 link#1 UC 00rl0
127.0.0.1 127.0.0.1 UH 0 1117lo0
192.168.1 link#5 UC 00 fxp0
[EMAIL PROTECTED]:0:/usr/home/src/FreeBSD-6/src/usr.bin/netstat#
The attachment patch (cvs diff -u -rHEAD route.c generated) prints
link-layer generated routes when -a is specified and ignores them
the rest of the time.
Thoughts? POLA violation?
Just use:
netstat -rn | awk '$3 !~ /L/ { print }'
Eugene
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Re: (feature change request) remove link-layer generated routes from netstat -r
On Thu, Feb 23, 2006 at 09:56:46AM +0200, Nikos Vassiliadis wrote:
Just use:
netstat -rn | awk '$3 !~ /L/ { print }'
That's exactly the point Eugene, I don't want to find ways to filter it out.
It happens frequently. I didn't say it's difficult to remove it, I just don't
want it there all the time. That's why you can use -a to get the old
behavior.
Just make ~/bin/netstat that will filter for you most of the time.
Eugene
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Re: Low umass performance with USB 2.0 ports
Eygene A. Ryabinkin wrote: Good day. I am observing very low umass performance: when I am trying to move a large file from/to my USB 2.0 flash that is plugged into the USB 2.0 port: transfer starts fine at 3.5 Mb/sec, but after some 20 Mbytes it hangs and the process (dd) stay in the wdrain state. The activity LED on the flash shows no activity. Operations do continue, but very slow and the most time of the copying process spends in the wdrain state. All attempts to invoke `sync` or to see the file state via `ls` are hanging until `dd` leaves the wdrain state. It does not matter what flash is used: I tried Apacer and the Kingmax ones -- the result is the same. If I plug the flash into the USB 1.1 port and trying to move some data -- it works fine, no hangs. Speed is 500 Kb/sec. What is filesystem has your USB drive? FreeBSD 4.x had very low performance with FAT filesystem, writing process spent lots of time in the wdrain state too. Eugene ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
writing ktrace output to serial port
Hi! I'm trying to debug kernel panic in 4.10-STABLE. It is 100% repeatable in my environment but this environment is very customized and it would be hard for others to reproduce it in my way (this includes non-standard build of libvgl and mplayer and his libs). So I want to see what is happening just before my mplayer crashes the kernel. The problem is that ktracing mplayer does not help as filesystem can't keep ktrace.out being written just before crash. I tried 'sync' mount, it does not help too. I decided to divert ktrace.out to /dev/cuaa0 so another FreeBSD will keep it. However, ktrace() in src/sys/kern/kern_trace.c does not permit writing to non-regular file. Why? Eugene Grosbein P.S. Please CC: me as I'm not in a list. ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: writing ktrace output to serial port
Julian Elischer wrote: I decided to divert ktrace.out to /dev/cuaa0 so another FreeBSD will keep it. However, ktrace() in src/sys/kern/kern_trace.c does not permit writing to non-regular file. Why? As for your problem.. Can you NFS mount? If you have no ethernet you could NFS mount over PPP/SLIP :) (or PLIP if you have a parallel port) it would be relatively easy to sent it to a netgraph ng_ksocket node and have the record sent out as a udp packet :-) Thank you, people, for your time. But my question was not how to solve my problem. (I do no rely on NFS when sender system is going to crash and is not so familiar with netgraph.) I just removed check from kernel source and now ktrace successfully writes to /dev/cuaa0 in test cases (I've not tried to reproduce the crash yet). So the question is: why is the check for regilar file there? Eugene ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Testers needed: Joe's MFC of USB code
IO_GAME # Pseudo devices - the number indicates how many units to allocated. pseudo-device loop# Network loopback pseudo-device ether # Ethernet support pseudo-device sl 2 # Kernel SLIP pseudo-device ppp 2 # Kernel PPP pseudo-device tun # Packet tunnel. pseudo-device pty 16 # Pseudo-ttys (telnet etc) #pseudo-device md # Memory disks pseudo-device gif 4 # IPv6 and IPv4 tunneling pseudo-device faith 1 # IPv6-to-IPv4 relaying (translation) pseudo-device snp #pseudo-device vn pseudo-device gzip# Exec gzipped a.out's pseudo-device speaker # The `bpf' pseudo-device enables the Berkeley Packet Filter. # Be aware of the administrative consequences of enabling this! pseudo-device bpf #Berkeley packet filter options MSGBUF_SIZE=40960 device pcm #optionsQUOTA options IPFIREWALL options IPFIREWALL_VERBOSE options IPFW2 options IPDIVERT options DUMMYNET options SOFTUPDATES #device smbus0 #device iicbus0 #device iicbb0 #device intpm0 #device smb0at smbus? device smbus #device iicbus #device iicbb device intpm #device alpm #device ichsmb device smb #device ic #device iic #device iicsmb options DDB options DDB_UNATTENDED #optionsLIBMCHAIN #optionsLIBICONV #optionsNETSMB #optionsNETSMBCRYPTO options RANDOM_IP_ID #optionsSMBFS options UFS_DIRHASH options PQ_CACHESIZE=128# color for 128k/16k cache options SHOW_BUSYBUFS device uhci #device ohci device usb device uscanner device ugen device uhid device ucom device tap #optionsSHUTDOWN_BEEP options IPSEC #IP security options IPSEC_ESP #IP security (crypto; define w/ IPSEC) options INVARIANTS options INVARIANT_SUPPORT device agp device radeondrm Eugene Grosbein ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
syslog
Hi! [EMAIL PROTECTED] wrote 8 years ago in src/lib/libc/gen/syslog.c: p += sprintf(p, %.15s , ctime(now) + 4); What is '+ 4' for? http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/libc/gen/syslog.c.diff?r1=1.2r2=1.3 Eugene Grosbein P.S. Please CC me, I'm not in list ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: syslog
Eugene Grosbein wrote: [EMAIL PROTECTED] wrote 8 years ago in src/lib/libc/gen/syslog.c: p += sprintf(p, %.15s , ctime(now) + 4); What is '+ 4' for? Oh, I've got it. Please ignore this question, sorry. Eugene ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: kern.vm.kmem.size
So, how can I estimate needed value of kern.vm.kmem.size? How much ram do you have in the machine? On a 4.4-RC1 machine I have 320M here. with 128MB of ram we don't have any problems getting dirhash to use almost all of it's 2MB: vfs.ufs.dirhash_maxmem: 2097152 vfs.ufs.dirhash_mem: 2085797 This is with the devault value for kern.vm.kmem.size. Maybe you could print the value your system is getting with: echo print vm_kmem_size | gdb -k /kernel /dev/mem You are absolutely right, it's using about 1/3 of RAM here (108875776 when I do not tune kern.vm.kmem.size). Hmm, my test seems to be incorrect somehow. How can I see used amount of kernel malloc area? Eugene Grosbein To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: kern.vm.kmem.size
On Tue, Nov 13, 2001 at 03:13:29PM +, David Malone wrote: I'm trying to test and tune speed of freebsd's filesystem in many aspects. I run recent FreeBSD 4.4-STABLE with new dirprefs code, read tuning(7), newfs'd my FS, turned softupdates on, have UFS_DIRHASH kernel option. Also, I've read DIRHASH kernel code source. It seems that efficiency of DIRHASH greatly depends of kernel memory size (and some experiments approve this). You should be able to control how much memory is used by dirhash with the vfs.ufs.dirhash_maxmem sysctl. By default it uses up to 2MB and it should be possible to raise it significantly, providing you have enough physical memory. (By default there is about 1GB of kernel address space, so you are unlikely to be running into this limit - I don't think changing kern.vm.kmem.size will help you). Are you shure? From LINT: # Tune the kernel malloc area parameters. VM_KMEM_SIZE represents the # minimum, in bytes, and is typically (12*1024*1024) (12MB). # VM_KMEM_SIZE_MAX represents the maximum, typically 200 megabytes. # VM_KMEM_SIZE_SCALE can be set to adjust the auto-tuning factor, which # typically defaults to 4 (kernel malloc area size is physical memory # divided by the scale factor). # options VM_KMEM_SIZE=(10*1024*1024) options VM_KMEM_SIZE_MAX=(100*1024*1024) options VM_KMEM_SIZE_SCALE=4 It seems DIRHASH is limited with free space in the kernel malloc area. It even cannot utilize default 2M of vfs.ufs.dirhash_maxmem when I do not increase kern.vm.kmem.size. I think it's because of kernel malloc area exhaustion. However, when I increase kern.vm.kmem.size upto 64M and vfs.ufs.dirhash_maxmem upto 8M, it starts using more than 2M of dirhash memory and speed of my tests greatly improves. So, how can I estimate needed value of kern.vm.kmem.size? Eugene Grosbein To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: porting OpenSSH to 2.2.8
On Tue, Nov 13, 2001 at 02:56:24PM -0700, Kirk Davis wrote: I have a number of older FreeBSD boxes (running 2.2.8-STABLE) and I am not able to upgrade beyond 2.2.8 due to some custom software. Has anyone managed to get a newer version of OpenSSH running on a 2.2.8 box? I'm not a C programer but I have ported some programs in the past. I'm not having a lot of luck and was hoping that someone out there had already invented the wheel. I had installed OpenSSH to 2.2.5 a couple of months ago. All that you need is: 1. Only if you do not have perl5 installed. Take distfile and patches from current ports tree for perl5. You can build and install it manually with no problems. 2. Take distfile and patches from current ports tree for openssl. You can build and install it manually with no problems, too. 3. The same with openssh-portable from ports. Eugene Grosbein To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: Cron pickle
On Mon, Sep 17, 2001 at 12:17:30PM +1000, Greg Black wrote: | I need to be able to run a particular program at the last | minute of each month and yes I know it would be much easier to | run it at the first minute of each month, but my hands are tied | and my brain is too puny to work it out. This cannot be done with cron, even with multiple entries. You can use cron to schedule something for minute zero of each month and that should be good enough for any reasonable use. This can be done with cron with single entry and small overhead. Run whis script at last minute of every day (or every 28-31): #!/bin/sh tomorrow=`date -v+1d %d` if [ $tomorroq -ne 01 ]; then exit # if tomorrow is not begin of month, do nothing fi # do work now ... Eugene Grosbein To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: Cron pickle
Greg Black wrote: Eugene Grosbein wrote: | On Mon, Sep 17, 2001 at 12:17:30PM +1000, Greg Black wrote: | | | I need to be able to run a particular program at the last | | minute of each month and yes I know it would be much easier to | | run it at the first minute of each month, but my hands are tied | | and my brain is too puny to work it out. | | This cannot be done with cron, even with multiple entries. You | can use cron to schedule something for minute zero of each month | and that should be good enough for any reasonable use. | | This can be done with cron with single entry and small overhead. | Run whis script at last minute of every day (or every 28-31): | | #!/bin/sh | | tomorrow=`date -v+1d %d` | if [ $tomorroq -ne 01 ]; then | exit# if tomorrow is not begin of month, do nothing | fi | | # do work now Sure: $ date -v+1d %d date: illegal time format usage: date [-nu] [-d dst] [-r seconds] [-t west] [-v[+|-]val[ymwdHMS]] ... [-f fmt date | [cc]yy]mm]dd]HH]MM[.ss]] [+format] Sorry, my example is full of mistakes. Really it should look like this: #!/bin/sh tomorrow=`date -v+1d +%d` if [ $tomorrow -ne 01 ]; then exit fi # proceed now Eugene Grosbein To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
libvgl
Hi! Will switching of virtual consoles via keyboard work for application using libvgl's keyboard mode VGL_CODEKEYS? It seems that the process receives codes for 'ALT pressed', 'F1 pressed', 'F1 released', 'Alt released' but no signal USR1 used by libvgl. The man page VGLInit(3) does not cover this situation. My system is FreeBSD 4.3-STABLE Eugene Grosbein P.S. Please CC me when replying. Thank you. To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
Re: libvgl
On Mon, Jul 02, 2001 at 11:14:01AM +0900, Kazutaka YOKOTA wrote: syscons dosn't automatically switch vtys if the keyboard is not in the XLATE mode. (Oh well, this isn't documented in vgl(3), *sigh*) In CODEKEYS and RAWKEYS modes, you need to initiate vty switching by yourself, by calling the ioctl VT_ACTIVATE when a key combination for vty switching is seen. Thank you very much. Can you please point me to the right place where I can read about syscons's ioctl, it's possibilities and semantics? RTFS around dev/syscons is not enough. Eugene Grosbein To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-hackers in the body of the message
