similar to: RE: asterisk, ztdummy, and usb (and HZ = 100 under xen ???)

> > Having HZ differ between Xen and a guest doesn''t really matter that > much. The guest will get fewer upcalls than it expects, but it will > count ten ticks for each upcall. So I doubt that thsi is your problem. > Does ztdummy use the rtc driver? I''m not sure how weel we support that > on Xen... The problem is that the ztdummy driver assumes 1000HZ, and a

Under the assumption that in these cases recurring faults aren''t a security issue and it can be expected that the drivers there are going to try to take care of the problem. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/drivers/passthrough/amd/iommu_init.c +++ b/xen/drivers/passthrough/amd/iommu_init.c @@ -625,6 +625,18 @@ static void parse_event_log_entry(struct

Ok here is a real geek question, I building my own linux kernel for my asterisk system and came across the kernel setting for the timer frequency. I have one of 3 hardcode choices 100Hz, 250 Hz and 1000Hz. From what I understand the default Freq was changed from 100Hz in kernel 2.4 to 1000Hz (1KHz) in kernel 2.6. Timing is a BIG issue in asterisk with all the TDM and zap channel stuff.

Hi, I'm building a test asterisk server and building the latest kernel I got to wonder if there are any specific recommendations about schedulers and so forth for optimum performance. There are a few areas that raise questions in my mind and I wonder if anyone has any opinions/comments on which settings are most suitable for use with asterisk: SLAB Allocator (SLAB or SLUB?) Tickless

Anyone else get this while compiling zaptel? I'm guessing I have to modify my kernel. Neato. :( Does that mean that the zaptel module (I'm really after ztdummy), or this xpp_zap thing won't be usable...? Not that I have zaptel hardware, but it seems Asterisk won't compile itself without zaptel being installed. CC [M] /root/software/zaptel-1.2.6/xpp/xpp_zap.o

I''m attempting to get ztdummy working in domU and right now since rtc wont work properly and i get the error "rtc: IRQ 8 is not free." when trying to load the module i had to remove #Define USE_RTC from ztdummy. When doing that ztdummy wants the kernel''s hz rate to be 1000. Do i have to manually modify the kernel source to do this or can i do it live in the env

I have several servers using ztdummy as the timing source, some CentOS 4.x, some CentOS 5.x, some Asterisk 1.2.x, some Asterisk 1.4.x. "zap show status" differs between the servers: ZTDUMMY/1 (source: Linux26) 1 UNCONFIGUR 0 0 0 ZTDUMMY/1 (source: RTC) 1 UNCONFIGUR 0 0 0 ZTDUMMY/1 1 UNCONFIGUR 0

zaptel compiles fine (make linux26) but when I modprobe ztdummy I get the follow error. [root@localhost zaptel]# modprobe ztdummy Notice: Configuration file is /etc/zaptel.conf line 0: Unable to open master device '/dev/zap/ctl' 1 error(s) detected FATAL: Error running install command for ztdummy System info: Linux localhost.localdomain 2.6.9-5.0.5.ELsmp #1 SMP Thu May 19 19:24:44

Anybody sucessfully got stable 1000Hz clock without Digium harware and kernel 2.6? We need to consult some peoples how to clock asterisk stable with exactly 1000 Hz without much kernel/drives patching/tweaking. Some test results we made so far: 2.6 with digium card - stable 1000 Hz. 2.6 with ztdummy - uses RTC and the clock is 1024, not 1000. 2.6 with some Realtime kernel patch - provides stable

I seem to be able to lock my machine by going into wpa_cli and asking it to 'reassoc'. The reason for question mark after "hard" is that debug information (caused by wlandebug and athdebug) is being printed on the console. The only way to get machine's attention is to hold power button for 8 seconds. Note: manual reassociation is just the handy way to reproduce the problem

Currently, if you are running CentOS-4.x on a Vmware box you end up with time skew problems. The main fix has been using a set of recompiled kernel that has a HZ that is more fitting with what Vmware expects (eg 100 hz). The 4.7 kernels look like they will not need this: http://jons-thoughts.blogspot.com/2008/04/rhel-and-vmware-time-skew-problems.html Well, I've gotten quite the number of

off topic ... this is vu2ese.... - farhan On 8/23/08, Ken Linder (KC7RAD) <kc7rad at radstream.com> wrote: > HA! Just when I was getting ready to drop myself from this list, along > comes a ham radio question! > > Shoving digital voice down a 100 Hz pipe would be mighty darned > tough/impossible. N0YMV has a good suggestion. Try those WSJT modes. They > use narrow

> Could you please forward this e-mail to your engineering department. I am a > ham radio person who wants to transmit from the Earth to the moon and back > to the Earth by phone not by Morris code. This will be a very weak signal. I > need an extra 13.8 dB of gain. Could you please help me distribute the > attached paper to someone who could take this project into the next level?

I've been trying out asterisk on xen myself. One thing to note for anyone that is experimenting that by default the Xen kernel runs at 100hz. To use ztdummy you need a 1000hz source so you need to recompile the dom0 and domU kernels with 1000hz. If remember correctly you also need to set CONFIG_CRC_CCITT=y in the kernel as well. I have not tested the service migration but it does sound

HA! Just when I was getting ready to drop myself from this list, along comes a ham radio question! Shoving digital voice down a 100 Hz pipe would be mighty darned tough/impossible. N0YMV has a good suggestion. Try those WSJT modes. They use narrow bandwidth and are fun to play with. There are documented instances where moon-bounce QSOs have been completed with these modes. No, it's

Dear Sir, Could you please forward this e-mail to your engineering department. I am a ham radio person who wants to transmit from the Earth to the moon and back to the Earth by phone not by Morris code. This will be a very weak signal. I need an extra 13.8 dB of gain. Could you please help me distribute the attached paper to someone who could take this project into the next level? Please reply

I am using getSymbols function from quantmod package to get price data from internet. Currently I have: my.ticker <- "IBM" getSymbols(my.ticker,src="google") This creates an xts object named my.ticker which contains historical price data for IBM. How can I call and manipulating this xts object using my original string my.ticker? I want to do: colnames(my.ticker) <-

--lrZ03NoBR/3+SXJZ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable ----- Forwarded message from Collin Starkweather <collin.starkweather@color= ado.edu> ----- --=20 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Collin Starkweather http://www.collinstarkweather.com Consulting Software

Hi Dongyang, Yan, When testing BTRFS with RAID 0 metadata on linux-3.3, we see discard ranges exceeding the end of the block device [1], potentially causing dataloss; when this occurs, filesystem writeback becomes catatonic due to continual resubmission. The reproducer is quite simple [2]. Hope this proves useful... Thanks, Daniel --- [1] attempt to access beyond end of device ram0: rw=129,

Hi, I do not understand why after I called apply on a function that returns an xts (getIdvAdjSeries) it returns a matrix whose columns are just numeric value of time series in xts instead of a list of xts objects. Basically, I called the following: apply(matrix(tickers,ncol=1),1,FUN=getDivAdjSeries) getDivAdjSeries <- function(ticker) { seriesName <-