block device
Hi !!! ls -al /dev/ show me: crw-r- 1 root operator0, 86 Dec 14 11:47 ad0 crw-r- 1 root operator0, 87 Dec 14 11:47 ad0s1 crw-r- 1 root operator0, 91 Dec 14 13:47 ad0s1a crw-r- 1 root operator0, 92 Dec 14 13:47 ad0s1b crw-r- 1 root operator0, 93 Dec 14 11:47 ad0s1c ad0 is a character device. Why ad0 isn't a block device? -- Uladzislau Rezki ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: block device
Hi, On Thu, Dec 14, 2006 at 01:21:24PM +0200, Uladzislau Rezki wrote: ad0 is a character device. Why ad0 isn't a block device? FreeBSD 5 and up no longer make a distinction between character/block devices. More information on this subject can be found in The Design and Implementation of the FreeBSD operating system by McKusick and Neville-Neil. -- Rink P.W. Springer- http://rink.nu It's you isn't it? THE BASTARD OPERATOR FROM HELL! In the flesh, on the phone and in your account... - BOFH #3 smime.p7s Description: S/MIME cryptographic signature
Re: block device
Rink Springer [EMAIL PROTECTED] writes: Hi, On Thu, Dec 14, 2006 at 01:21:24PM +0200, Uladzislau Rezki wrote: ad0 is a character device. Why ad0 isn't a block device? FreeBSD 5 and up no longer make a distinction between character/block devices. More information on this subject can be found in The Design and Implementation of the FreeBSD operating system by McKusick and Neville-Neil. -- Rink P.W. Springer- http://rink.nu It's you isn't it? THE BASTARD OPERATOR FROM HELL! In the flesh, on the phone and in your account... - BOFH #3 Many thanks ! -- Uladzislau Rezki ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: [PATCH] automated make -j value
Hello David, I was using hw.ncpu. Which one is better ? % sysctl -n kern.smp.cpus hw.ncpu 1 1 % ssh vol sysctl -n kern.smp.cpus hw.ncpu 2 2 % ssh vol2 sysctl -n kern.smp.cpus hw.ncpu 4 4 cheers, -a On Wed, Dec 13, 2006 at 08:19:52PM -0800, David O'Brien wrote: With multi-socket systems becoming more prevalent, and the continued increase in cores per processors, I thought it would be nice for 'make -j' to gain some automation. Attached is a patch that makes -j- be the same as -j `sysctl -n kern.smp.cpus` and -j= be twice that. ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: portupgrade and dependencies
Unfortunately, the semantics of -r and -R options of pkg_info is the opposite of the semantics used by pkgtools (such as portupgrade/portinstall, pkg_glob and so on). Eugene Marek Denis wrote: On Tue, Dec 12, 2006 at 05:55:40PM -0500, Dino Michailidis wrote: portupgrade -r will also upgrade packages that depend on the port you are upgrading. It seems that this is not what you want. portupgrade -R will also upgrade packages required by the port you are upgrading - I believe this *is* what you want. Well, I don't get it. When I type: pkg_info -R libiconv-1.9.2_1 it shows many of the packages (ettercap too) so it is required by ettercap to work properly, yes? And when I type pkg_info -r ettercap it shows libiconv as a dependant, it mean a package which is required to work ettercap properly, yes? And that I have always thought -r option with portupgrade was all right for me. ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: [PATCH] automated make -j value
On Wed, Dec 13, 2006 at 08:19:52PM -0800, David O'Brien wrote:
With multi-socket systems becoming more prevalent, and the continued
increase in cores per processors, I thought it would be nice for
'make -j' to gain some automation.
Attached is a patch that makes -j- be the same as
-j `sysctl -n kern.smp.cpus` and -j= be twice that.
comments? (redirected back to list)
I think you can do it better than this, by just support
setting the concurrancy level via reading a environmental
variable. Like say NPROC, which is what CrayOS used, and
also appeared in the BSD/OS pmake varient several years ago.
Then you can just do this:
export NPROC=`/sbin/sysctl hw.ncpu | awk '{print $3*2}'`
or this:
export NPROC=`/sbin/sysctl hw.ncpu | awk '{print $3}'`
in your shells .rc files.
(Obviously, change the sysctl node as appropriate for your OS.)
I found this really useful when compiling a large tree of
sources, where some of the Makefiles didn't have their dependencies
written correctly, sucht that a parallel make wouldn't work
properly. It's easy to turn off, just by unsetting the
environmental variable. It's also easy to iterate over a set
of values to figure out which one will compile a tree the
fastest. (FYI -- setting 3*hw.ncpu was optimal for BSD/OS.)
If you hack on make to put in automagic around -j, you should
add the environmental variable support too. It's actually more
useful in a lot of cases. (Mostly cause you don't have to
touch any Makefile to turn it on, it just works...)
-Kurt
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Capturing Parallel Port Data
Hi Guys, I have been reading the ppi man page and have searched Google but have not found an answer to my problem: I work at a business which uses cable testers that output plain text to a dot matrix printer (any old DMP will work). (Cirris cable testers) The paper trail is getting huge so I am trying to write a program that does the following: Prompts the user for the cable part number Reads data from the parallel port, which is connected to the parallel output of a Cirris tester Prompts for any notes regarding the cable Inputs the data into a database table Now, my real question is: how do I read data from the parallel port on the FreeBSD computer that is coming from the tester which is trying to 'print' to the FBSD computer's parallel port? Is there a suggested pinout for a parallel crossover calbe to accomplish this task with ppi? Is the crossover cable even required? Finally, is there a FBSD-sanctioned parallel port driver for use with Perl instead of using ppi and C? Any and all help is welcomed and apriciated. -J. Hunt _ Get free, personalized commercial-free online radio with MSN Radio powered by Pandora http://radio.msn.com/?icid=T002MSN03A07001 ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Capturing Parallel Port Data
Now, my real question is: how do I read data from the parallel port on the FreeBSD computer that is coming from the tester which is trying to 'print' to the FBSD computer's parallel port? Is there a did you try to set LPT0 mode to bi-directional in the BIOS, and then `cat /dev/lpt0`? suggested pinout for a parallel crossover calbe to accomplish this task with ppi? Is the crossover cable even required? as I understand it, either the 8 parallel lines can be driven on both sides to send data both ways, or the 5 control inputs (paper out, ACK, busy, etc) are used to receive data, or both. -J. Hunt [SorAlx] ridin' VN1500-B2 ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Kernel hang on 6.x
Hi, We're experiencing a kernel hang on a 6.x quad processor Sun amd64 based system. We are able to reproduce it fairly reliably, but the environment to do so is not easily replicatable so I cannot provide a simple test case. However, I have been able to build a debug kernel and when the system hangs, I can break to the debugger prompt. But once there, I'm not sure what to do to isolate where the system is hung up. I have confirmed that the hang occurs in both SMP and uniprocessor mode. Here are some system details: uname -a: FreeBSD bb02f54 6.2-BETA2 FreeBSD 6.2-BETA2 #4: Wed Dec 13 11:43:38 EST 2006 [EMAIL PROTECTED]:/usr/src/sys/amd64/compile/BBKERN amd64 FreeBSD 6.2-BETA2 #4: Wed Dec 13 11:43:38 EST 2006 [EMAIL PROTECTED]:/usr/src/sys/amd64/compile/BBKERN WARNING: WITNESS option enabled, expect reduced performance. Timecounter i8254 frequency 1193182 Hz quality 0 CPU: Dual Core AMD Opteron(tm) Processor 275 (2193.76-MHz K8-class CPU) Origin = AuthenticAMD Id = 0x20f12 Stepping = 2 Features=0x178bfbffFPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT Features2=0x1SSE3 AMD Features=0xe2500800SYSCALL,NX,MMX+,FFXSR,LM,3DNow+,3DNow AMD Features2=0x3LAHF,CMP Cores per package: 2 real memory = 17179869184 (16384 MB) avail memory = 16518569984 (15753 MB) ACPI APIC Table: SUNX4200 The hang appears to occur under heavy memory usage and usually seems to happen when the process size approaches the size of swap. If anyone can offer a suggestion as to what information from the db prompt might help home in on this problem, please let me know. A simple backtrace wasn't terribly englightening, at least to me: db bt Tracing pid 18 tid 100011 td 0xff03e1563980 kdb_enter() at kdb_enter+0x2f scgetc() at scgetc+0x43e sckbdevent() at sckbdevent+0x83 kbdmux_intr() at kbdmux_intr+0x4d kbdmux_kbd_intr() at kbdmux_kbd_intr+0x20 taskqueue_run() at taskqueue_run+0x135 ithread_loop() at ithread_loop+0x132 fork_exit() at fork_exit+0x87 fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xbf50ad00, rbp = 0 --- db db show reg cs 0x8 ss0x10 rax 0x26 rcx 0x10457a rdx0x1 rbx 0 rsp 0xbf50aac0 rbp 0xbf50aad0 rsi 0x80c11000 rdi 0 r8 0xffe00 r9 0xa r10 0xbf50a9e0 r110xa r12 0x80957c20 main_softc r13 0x809579c0 main_console r140x2 r15 0 rip 0x803fd57f kdb_enter+0x2f rflags 0x286 dr0 0 dr1 0 dr2 0 dr3 0 dr4 0x0ff0 dr5 0x400 dr6 0x0ff0 dr7 0x400 kdb_enter+0x2f: nop db Thanks! -Brian ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Kernel hang on 6.x
On Dec 14, 2006, at 1:05 PM, Brian Dean wrote: Hi, We're experiencing a kernel hang on a 6.x quad processor Sun amd64 based system. We are able to reproduce it fairly reliably, but the environment to do so is not easily replicatable so I cannot provide a simple test case. However, I have been able to build a debug kernel and when the system hangs, I can break to the debugger prompt. But once there, I'm not sure what to do to isolate where the system is hung up. I have confirmed that the hang occurs in both SMP and uniprocessor mode. Here are some system details: I think you'll need to ship this machine to my house for further umerm, diagnostics, yes, that's it ;) On a more serious topic, can you paste the output from: ddb show pcpu ddballpcpu ddbtraceall ddbshow alllocks ddbshow lockedvnods Just curious as to whether those would show more info, because you're right, that trace is about as informative as new printer paper :) Cheers R. Tyler Ballance: Lead Mac Developer at bleep. software contact: [EMAIL PROTECTED] | jabber: [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: [PATCH] automated make -j value
At 1:52 PM -0500 12/14/06, Kurt J. Lidl wrote: On Wed, Dec 13, 2006, David O'Brien wrote: With multi-socket systems becoming more prevalent, and the continued increase in cores per processors, I thought it would be nice for 'make -j' to gain some automation. Attached is a patch that makes -j- be the same as -j `sysctl -n kern.smp.cpus` and -j= be twice that. I think you can do it better than this, by just support setting the concurrancy level via reading a environmental variable. Like say NPROC, which is what CrayOS used, and also appeared in the BSD/OS pmake varient several years ago. You could have '-j-' use the value of NPROC if that variable is set, and fall back to kern.smp.cpus if NPROC is not set. (it also seems to me this could be called -j auto instead of using some single-character for it). I think is not going to make much sense to have a special -j value for twice ncpu as we get machines with 12 or 16 CPU's. I doubt there would be many projects which could really take advantage of 32 streams even if there was no performance penalties. And for the few which do exist, the users could just set NPROC if they think that would do them any good. -- Garance Alistair Drosehn = [EMAIL PROTECTED] Senior Systems Programmer or [EMAIL PROTECTED] Rensselaer Polytechnic Institute; Troy, NY; USA ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
VPN Agregation
Hello, I have 7 ADSL connections, and one server outside with a big bandwidht. I want to bond all 7 ADSL connection into one big channel. I think it can be done using 7 VPN connections to the ourside server, and after that to bond all this seve VPN connection into one big. How can i do it with FreeBSD? Or other devices. Thanks ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Syncing cpus on a multi-cpu, dual core system
On a computational chemistry list I subscribe to there is a current thread about multi-cpu systems needing to have the cpu frequencies synced (this is in a Linux context). This is evidently not just having the cpus running at nominally the same frequency but something else in addition. A posting in the thread said variations less than 0.1% were not problematic. However, the poster said it was an issue in a dual cpu, dual core system he had set up. My questions are: 1. Is this real or an urban legend? 2. If real, is this a Linuxism or is FreeBSD affected as well? 3. How do you sync the cpus, if it is needed? 4. anything else some one wants to expound on along this line. Bud Dodson -- M. L. Dodson Email: mldodson-at-houston-dot-rr-dot-com Phone: eight_three_two-56_three-386_one ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: VPN Agregation
just Maxim wrote: Hello, I have 7 ADSL connections, and one server outside with a big bandwidht. I want to bond all 7 ADSL connection into one big channel. I think it can be done using 7 VPN connections to the ourside server, and after that to bond all this seve VPN connection into one big. How can i do it with FreeBSD? Or other devices. Thanks ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED] how do you make different VPNs go out through different DSL lines? more info is needed I guess. ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Syncing cpus on a multi-cpu, dual core system
On a computational chemistry list I subscribe to there is a current thread about multi-cpu systems needing to have the cpu frequencies synced (this is in a Linux context). This is evidently not just having the cpus running at nominally the same frequency but something else in addition. A posting in the thread said variations less than 0.1% were not problematic. However, the poster said it was an issue in a dual cpu, dual core system he had set up. My questions are: 1. Is this real or an urban legend? If CPUs use the same FSB (as is the case with dual-core chip), they are already in sync. Right? For system that use multiple FSB clocks [like dual-(dualcore-CPU) systems], it might be possible to vary the clocks (as much as the manufacturer allows without hw modifications: e.g., SpeedStep, or something similar). Why someone would want to have CPUs running at precisely the same frequency is beyond my imagination. Bud Dodson [SorAlx] ridin' VN1500-B2 ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: VPN Agregation
On Thu, Dec 14, 2006 at 08:36:51PM +, just Maxim wrote: Hello, I have 7 ADSL connections, and one server outside with a big bandwidht. I want to bond all 7 ADSL connection into one big channel. I think it can be done using 7 VPN connections to the ourside server, and after that to bond all this seve VPN connection into one big. How can i do it with FreeBSD? Or other devices. I don't think VPN is the right way to go for channel bonding. You only need to use MLPPP or BGP or some such thing. It is a very simple thing to do. I have myself implemented link aggregation on wireless links by modifying only the downstream. The other side just assembled the packets properly automatically. I used a simple round robin scheme. The throughput was not constant but fairly good. I am sure it could be improved. If you want link sharing both ways, then you got to do this at both sides. Don't go the VPN way, you don't need the overhead for this. Besides it is totally unrelated to your goal. Should you have more questions feel free to ask. Best of luck! regards, Girish ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: VPN Agregation
Maxim, VPN and channel aggregation are two completely unrelated concepts. If you want to do channel aggregation, you will also need networking equipments (routers and switches) that are intelligent enough to realize that you are treating seven physical lines as one virtual line. Otherwise, the frames and packets will not be switched/routed to the correct interfaces, and you could even end up with switching loops (and that is very bad). Once you have aggregation set up, you should then consider VPN *only* if you want the traffic between you and the server encrypted and protected against tampering, etc. I think that, in this case, not only do you need more information, you also need a clearer idea of exactly what you want to do. SC On 12/14/06, just Maxim [EMAIL PROTECTED] wrote: Hello, I have 7 ADSL connections, and one server outside with a big bandwidht. I want to bond all 7 ADSL connection into one big channel. I think it can be done using 7 VPN connections to the ourside server, and after that to bond all this seve VPN connection into one big. How can i do it with FreeBSD? Or other devices. Thanks ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
