On Tue, May 4, 2010 at 3:28 AM, Julien Laffaye wrote:
>
> Hello,
>
> During this summer, I'll work on the pkg_install tools to add complete
> package support.
> A complete package is a package which includes all the required
> dependencies in its tarball.
> Unlike the PBI package format of PC-BSD,
Hi,
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 i
2009/1/12 Eugene Grosbein :
>> 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 t
2009/1/12 Giorgos Keramidas :
> On Mon, 12 Jan 2009 14:56:21 +, "Andrew Brampton"
> wrote:
>> If you were going to do this, would you make it a configure flag... ie
>> --enable-polling... That way it doesn't matter if the build box is
>> different?
>
Hi,
I'm doing the unusual task of converting some c++ code into a FreeBSD
kernel module. Now all has been going great, and thus far I've been
able to debug quite a bit of it using printfs. However, I decided to
start using a kernel debugger, and to make this easier I passed g++
the –O0 flag, to mak
2009/1/21 Alexander Kabaev :
> From GCC's info pages:
>
> Most of the compiler support routines used by GCC are present in
> `libgcc', but there are a few exceptions. GCC requires the
> freestanding environment provide `memcpy', `memmove', `memset' and
> `memcmp'.
>
>
> We do not provide all nece
Hi,
I'm writing a new kernel module which can not be run with another
module. If both run then bad things will happen and the kernel will
fall over. Fixing the modules so they can be run together is not a
option, so I wanted to code something in this new module which would
A) Check if the other mo
I found this useful tool called pahole[1]. It basically finds holes
within structs, so for example on my 64bit machine this struct:
struct test {
int foo;
const char *bar;
int blah;
}
Would have a hole between foo and bar of 4 bytes because both for and
bar have been aligned on a 8 byte
2009/2/12 Kostik Belousov :
> On Thu, Feb 12, 2009 at 02:08:22PM +0000, Andrew Brampton wrote:
>>
>> So I ran the tool pahole over a 7.1 FreeBSD Kernel, and found that
> Did you ported it to FreeBSD, or run on the Linux host ?
>
Sorry no, I just ran it from a Linux host, b
Hi,
I'm having a problem with memguard(9) on FreeBSD 7.1 but before I ask
about that I just need to check my facts about malloc.
When in interrupt context malloc must be called with M_NOWAIT, this is
because I can't sleep inside a interrupt. Now when I hold a spinlock
(MTX_SPIN) I am also not allo
2009/4/11 Robert Watson :
> On Sat, 11 Apr 2009, Andrew Brampton wrote:
>
> Your understanding is mostly right. The missing bit is this: there are two
> kinds of interrupt contexts -- fast/filter interrupt handlers, which borrow
> the stack and execution context of the kernel thre
I'm writing a C++ Kernel Module, and one thing that has been bugging
me is the kernel's definition of NULL.
sys/sys/_null.h (in CURRENT):
#if defined(_KERNEL) || !defined(__cplusplus)
#define NULL((void *)0)
#else
#if defined(__GNUG__) && defined(__GNUC__) && __GNUC__ >= 4
#define NULL__n
2009/5/2 Erik Trulsson :
> On Sat, May 02, 2009 at 04:59:03PM +0100, Andrew Brampton wrote:
>> I'm writing a C++ Kernel Module, and one thing that has been bugging
>> me is the kernel's definition of NULL.
>
> Is the use of C++ inside the kernel really supported?
Hi,
I'm writing a FreeBSD kernel module and I think I really misunderstand
something. My module spawns a thread, which should be running while
the module is loaded. The thread does some work and then should yield
for other threads. However, if there are no other threads waiting,
then I would like t
2009/5/8 Ryan Stone :
> Your kernel thread likely has a higher priority than userspace threads.
>
> Ryan Stone
>
Thanks for your reply Ryan.
So that I understand this correctly, if I had two kernel threads, one
with a high priority, and one with a low priority, and both are
PRI_TIMESHARE, then th
Hi,
I've been playing with memguard(9) and so far it works well until it
starts to run out of memory. For those who don't know, memguard is a
replacement debugging malloc for the kernel, which is designed to
catch use after free errors. It achieves this by setting any free'd
pages to read-only, the
Hi,
I am running a amd64 FreeBSD 7.2 inside a VMWare, and DTrace has been
working great. However, I have just changed my VMWare to use two
processors instead of one, and things have started to break. I can
load the dtraceall module but when I run hotkernel the machine hangs.
I have DDB compiled int
Hi FreeBSD-Hackers,
netstat -i will print out statistics for each interface, including
input/output packets, input/output bytes, and input/output errors. Now
packets and bytes columns seem to be absolute counts, whereas the
errors column seems to be a count over the last second. For example,
when
2009/8/31 John Baldwin :
> It should be total and it sounds like a bug in the device driver. It looks
> like ixgbe_update_stats_counters() overwrites the accumulated value of
> if_ierrors:
>
> /* Rx Errors */
> ifp->if_ierrors = total_missed_rx + adapter->stats.crcerrs +
>
Hello,
I was using "top -H" to display all the different threads on my
system. I then wanted to use cpuset to pin a thread to a particular
core, however, I couldn't find the thread ID. So I've hacked top to
display thread IDs. Hopefully this patch is useful to something, and
perhaps it should be i
2009/10/7 Ryan Stone :
> If a thread has a name, top -H will display it in parentheses after
> the executable name. One option would be to print the tid there if
> the thread has no name.
>
Thanks for your suggestion. I would like the TID always to be
displayed, so displaying it when there is no
Today I was writing a script to read all the dev.cpu.?.temperature
sysctl OIDs. I was parsing them using a simple grep, but it occurred
to me it might be better if sysctl supported some form of regexp. For
example instead of typing:
sysctl -a | grep dev.cpu.*.temperature
I could write:
sysctl dev.
2010/2/9 Dag-Erling Smørgrav :
> Andrew Brampton writes:
>> Today I was writing a script to read all the dev.cpu.?.temperature
>> sysctl OIDs. I was parsing them using a simple grep, but it occurred
>> to me it might be better if sysctl supported some form of regexp.
>
>
On Wed, Feb 10, 2010 at 12:14 AM, Garrett Cooper wrote:
> C-shell globs as some programming languages referring to it as, i.e. perl
> (which this is a subset of the globs concept) allow for expansion via `*' to
> be `anything'. Regexp style globs for what you're looking for would be either
> .*
On Wed, Feb 10, 2010 at 12:51 AM, Garrett Cooper wrote:
> fnmatch is for matching filenames... I think there's a better way to
> do it with globs, but I'll have to take a quick peek at python's glob module
> so I don't reinvent the wheel (using fnmatch(3) // glob(3) to string match
> see
On Thu, Feb 11, 2010 at 2:25 AM, james toy wrote:
> Hello Hackers,
>
> I am working on learning to write FreeBSD drivers; however, I have
> some practice writing IOKit drivers for MacOSX (they are entirely
> different I know!). The code I am working with can be found here:
>
> http://pastebin.
After reading though the kernel source I realise what I want isn't
implemented at the moment but I wanted to discuss if this feature
would be an useful addition.
Basically I want to see counts of how many interrupts for a particular
interrupt have fired on each core. Linux has provided this kind o
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