hi
when looking at PR103455 I found this and I have a question..
code:
swp_pager_strategy(bp);
/*
* wait for the page we want to complete. VPO_SWAPINPROG is always
* cleared on completion. If an I/O error occurs, SWAPBLK_NONE
* is set in the meta-data.
On Wed, Mar 07, 2007 at 06:07:31PM -0500, Ed Maste wrote:
> Nightly tests on our 6.1-based installation using pgsql have resulted in
> a number of kernel hangs, due to a corrupt semu_list (the list ended up
> with a loop).
>
> It seems there are a few holes in the locking in the semaphore code. T
hi
I looked at where Giant is held in the kernel and I found these interesting
things:
1) in fs/fifofs/fifo_vnops.c we lock Giant when calling sorecieve()/sosend()
this is a bandaid for fixing a race that doesnt have to exist anymore. ie.
it needs some testing and can be remvoed
2) in geom/geom
hi
I noticed that kern___getcwd() calls vn_fullpath1() with Giant held like this:
mtx_lock(&Giant);
FILEDESC_LOCK(fdp);
error = vn_fullpath1(td, fdp->fd_cdir, fdp->fd_rdir, tmpbuf,
&bp, buflen);
FILEDESC_UNLOCK(fdp);
mtx_unlock(&Giant);
on the
On Sat, Feb 24, 2007 at 04:31:11PM -0500, Kris Kennaway wrote:
> Now that the goals of the SMPng project are complete, for the past
> year or more several of us have been working hard on profiling FreeBSD
> in various multiprocessor workloads, and looking for performance
> bottlenecks to be optimiz
hi
what is the ISOPEN flag to namei good for? the description
there says "caller is opening; return a real vnode."
but the flag doesnt seem to be used anywhere for anything
thnx
roman
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On Wed, Jan 03, 2007 at 07:47:28AM +0800, Intron is my alias on the Internet
wrote:
> My patch for /sys/compat/linux/linux_file.c (7.0-CURRENT) can
> partially unbreak Adobe Reader 7.0.8 for Linux when the sysctl
> compat.linux.osrelease is set to "2.6.16". You may download the patch
> at:
>
On Sun, Dec 17, 2006 at 01:43:57AM -0200, Henry Lenzi wrote:
> Hi *
>
> I'm trying to follow the following tutorial for Xlib prpogramming:
>
> http://users.actcom.co.il/~choo/lupg/tutorials/xlib-programming/xlib-programming.html#preface
>
> However, I can't seem to compile the simple-drawing.c e
On Sat, Nov 04, 2006 at 11:56:29AM +0300, Andrey V. Elsukov wrote:
> Hi, All!
>
> I've ported NetBSD magic symlinks implementation to FreeBSD.
> The description of magiclinks can been found here:
> http://www.daemon-systems.org/man/symlink.7.html
>
> Patch here:
> http://butcher.heavennet.ru/patc
On Mon, Oct 16, 2006 at 02:08:59PM +0200, Marco van de Voort wrote:
> >
> > On Sunday 15 October 2006 01:32, David Xu wrote:
> > > You are going to be unable to use libc if you create raw thread in your
> > > program, libc uses pthread APIs, if you create a raw thread, your
> > > program will cras
hi
I am trying to implement CLONE_FS in linuxolator clone(). This flags
is used when we want the newly created thread share root/cwd/umask.
In FreeBSD we have a flags to fork1() RFFDG/RFCFDG. The first one
tells fork1() to copy the filedesc from old proc to the new one.
The later says we should c
hi
I wonder what happens when proc A, create proc B using
fork1(td, RFMEM, 0, &p2);
and either A or B mmap()s something. is the mmaped memory shared
among the procs? what if it brk()s something?
thnx
roman
--
www.liberalnistrana.cz
___
> You could make em_find() take an argument to specify if it should acquire
> a WLOCK instead of an RLOCK. Really, unless you have measured a lot of
> contention on this lock, you should just make it a mtx, and only go back and
> make it a rwlock if it really needs it. Also, you currently can't
On Thu, Aug 10, 2006 at 10:43:05AM -0500, Brooks Davis wrote:
> On Thu, Aug 10, 2006 at 05:35:43PM +0200, Divacky Roman wrote:
> > On Thu, Aug 10, 2006 at 10:23:59AM -0500, Brooks Davis wrote:
> > > On Thu, Aug 10, 2006 at 05:16:17PM +0200, Divacky Roman wrote:
> > >
On Thu, Aug 10, 2006 at 10:23:59AM -0500, Brooks Davis wrote:
> On Thu, Aug 10, 2006 at 05:16:17PM +0200, Divacky Roman wrote:
> > hi
> >
> > I am doing this:
> >
> > (pseudocode)
> > LIST_FOREACH_SAFE(em, &td_em->shared->threads,
hi
I am doing this:
(pseudocode)
LIST_FOREACH_SAFE(em, &td_em->shared->threads, threads, tmp_em) {
kill(em, SIGKILL);
}
kill(SIGKILL) calls exit() which calls my exit_hook()
my exit_hook() does LIST_REMOVE(em, threads).
the problem is that this is not synchronous so I am getting a pan
On Sun, Jul 30, 2006 at 12:57:32PM +0200, Divacky Roman wrote:
> hi,
>
> while working on SoC linuxolator project I am in a need of this:
>
> I need to do some operation on memory like mem1 = mem1 + mem2 etc.
> where the mem1/mem2 access can trigger fault. (memory not mapped
hi,
while working on SoC linuxolator project I am in a need of this:
I need to do some operation on memory like mem1 = mem1 + mem2 etc.
where the mem1/mem2 access can trigger fault. (memory not mapped or something)
currently I solve this by using pcb_onfault. this must be done in asm (kib@
told
On Sun, Jul 23, 2006 at 11:18:56PM +0200, Attilio Rao wrote:
> 2006/7/23, Divacky Roman <[EMAIL PROTECTED]>:
> >hi,
> >
> >I need to get content of %esi register as it was during a syscall. Should
> >I get
> >this info from td->td_pcb->pcb_esi
hi,
I need to get content of %esi register as it was during a syscall. Should I get
this info from td->td_pcb->pcb_esi or td->td_frame->tf_esi?
Is it so that trapframe is "content of registers when entering a kernel" and
pcb is "when leaving a kernel" ?
thnx for info
roman
---
On Sat, Jul 22, 2006 at 07:15:35PM -0400, Daniel Eischen wrote:
> On Sat, 22 Jul 2006, Michael Nottebrock wrote:
>
> >On Saturday, 22. July 2006 21:20, Kip Macy wrote:
> >>Thanks for your input.
> >>
> >>The relative merits of the different threading libraries is currently
> >>under discussion. Co
hi
linux gdb doesnt work at all with internal error (some assert condition doesnt
hold), this is manifested by simple:
gdb /bin/ls
run
(sorry cant paste the output now because currently linuxolator panics for me
on every load :))
fbsd gdb is not able to attach to a running proce
On Thu, Jul 13, 2006 at 06:12:40PM +0200, Divacky Roman wrote:
> hi,
>
> durin my work on SoC I happened to be in a need of "catching" the transition
> of
> execve() from fbsd binary to linux binary and back.
>
> Kostik Belousov suggested using the process_e
hi,
durin my work on SoC I happened to be in a need of "catching" the transition of
execve() from fbsd binary to linux binary and back.
Kostik Belousov suggested using the process_exit handler event but it doesnt
contain information necessary to distinguish such a switch. He proposes
extending
hi,
is it able to somehow make gdb be able to debug fbsd and linux binaries at the
same time? I mean.. alter somehow the way its built in buildworld or something
thnx
roman
--
www.liberalnistrana.cz
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On Fri, Jun 30, 2006 at 10:21:39PM -0500, Dan Nelson wrote:
> In the last episode (Jul 01), Jean-Marc Lienher said:
> > After a (too?) quick look at the FreeBSD source code, I've seen that
> > the GNU compiler toolchain was used to compile the kernel and other
> > part of the OS.
> >
> > I would l
> > Linux uses strict 1:1 threading so every thread is in fact process, so
> > thread creation is done using plain clone()/fork(). FreeBSD uses M:N
> > (including 1:1) threading. Threads are created via pthread_create() call to
> > threading library. In kernel there's thr_new() syscall or thread_cr
Hi
I am student working on SoC project - extending linuxolator, now I am working
on implementing linux TLS in FreeBSD. Here is what I think/know and I like you
to comment on this, thnx. Roman
-
Linux and FreeBSD TLS implementation - comparison
Bot
On Sun, Jun 18, 2006 at 11:58:50AM +0300, Alex Lyashkov wrote:
> ? ???, 18.06.2006, ? 10:55, Divacky Roman ?:
> > hi
> >
> > I am working on SoC project extending the linuxolator and it now seems that
> > I
> > have to implement TLS. So I'd
hi
I am working on SoC project extending the linuxolator and it now seems that I
have to implement TLS. So I'd love to collect as many information as possible.
pls can you tell me about any documents, articles etc. about the topic? or
point me to a person "with a clue" ?
thnx
roman
--
Hi,
I am working on SoC linuxolator and I found strange thing I dont know how to
cope with:
I made a patch which enables module build of linuxolator on amd64 but it
refuses to kldload because of missing symbol. I tracked the problem down to
the fact that i386 module build works in a way that it b
hi
I just found http://mygcc.free.fr/ which is a project for automatic checking of
source code for bugs (memory leaks, unreleased locks, null pointer
dereferences). I recall there was some SoC project to achieve something
similar but this is complete and ready to run...
it might be of some intere
hi
why fbsd dont use precompiled headers during buildword/buildkernel? I just did
very naive test (which doesnt work for a lot of the headers)
cd /sys; find . -name \*.h -exec gcc -x c-header {} \;
time buildkernel
and delete those compiled headers and time buildkernel again
there is a speedup
On Wed, Mar 22, 2006 at 11:24:36AM +0100, Volker Stolz wrote:
> A rather largish application (the most recent version of GHC, see lang/ghc)
> fails in its runtime system with:
>
> _pq_insert_tail: Already in priority queue
two pointers:
1) I use ghc daily without this problem
2) I got this error
hi,
sched_newthread(struct thread *td)
{
struct td_sched *ke;
ke = (struct td_sched *) (td + 1);
bzero(ke, sizeof(*ke));
td->td_sched = ke;
ke->ke_thread = td;
ke->ke_state= KES_THREAD;
}
whats the logic behind:
ke = (struct td_sched *
On Mon, Feb 20, 2006 at 07:42:50PM +0200, Giorgos Keramidas wrote:
> On 2006-02-20 18:27, Divacky Roman <[EMAIL PROTECTED]> wrote:
> > hi
> >
> > is is possible to set global LDFLAGS as its possible with CFLAGS?
>
> Yes, but why would you want to do t
hi
is is possible to set global LDFLAGS as its possible with CFLAGS?
thnx
roman
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On Sat, Feb 18, 2006 at 01:43:30PM -0800, John-Mark Gurney wrote:
> Divacky Roman wrote this message on Sat, Feb 18, 2006 at 18:39 +0100:
> > On Sat, Feb 18, 2006 at 06:21:52PM +0100, [EMAIL PROTECTED] wrote:
> > > On Sat, Feb 18, 2006 at 06:17:18PM +0100, Divacky Roman wrote:
&
On Sat, Feb 18, 2006 at 06:21:52PM +0100, [EMAIL PROTECTED] wrote:
> On Sat, Feb 18, 2006 at 06:17:18PM +0100, Divacky Roman wrote:
> > execl("/bin/ls", NULL);
>
> This is wrong. You must specify arg0 != NULL (POSIX says so) and you
> must NULL-terminate th
hi
this simple program
#include
#include
#include
main() {
pid_t pid;
pid = fork();
if (pid == 0)
execl("/bin/ls", NULL);
}
works differently on fbsd and on linux. on fbsd it basically ls each record in
ENV on linux it executes ls listing all files in cwd.
can someone expla
hi,
the only use of COMPAT_43 (beside running 43 programs) is linux emulation layer
and some tty-related stuff. but GENERIC etc. still shouts KEEP THIS on this
option. is this necessary?
forcing COMPAT_43 pesimises performnce (additional locking in some places etc.)
and most users dont need it (
On Fri, Dec 09, 2005 at 02:02:25PM -0600, Sergey Babkin wrote:
> >From: Divacky Roman <[EMAIL PROTECTED]>
>
> >On Thu, Dec 08, 2005 at 05:06:16PM -0800, Steve Kargl wrote:
> >> Anyone have any insight into fixing gcc to make better
> >> use of system memory
On Thu, Dec 08, 2005 at 05:06:16PM -0800, Steve Kargl wrote:
> Anyone have any insight into fixing gcc to make better
> use of system memory on systems with more than 4 GB.
> It appears that libiberty/physmem.c tries to use sysctl()
> to determine the amount of physical memory in a system.
>
> {
On Fri, Oct 14, 2005 at 04:24:05PM -0500, Matthew D. Fuller wrote:
> On Fri, Oct 14, 2005 at 06:54:26AM -0500 I heard the voice of
> Sergey Babkin, and lo! it spake thus:
> >
> > I don't know if it's fixed now or not.
>
> I just converted a Mandrake box a month or so ago, which used MD5
> hashes.
Hi,
I need to set serial port to given parity/speed/etc. and then cat from it...
when I: stty -f /dev/cuaa0 speed 1200
its still at 9600 (the default setting)
how do I alter speed of serial port? minicom/cu is able to do it but I want to
do it via stty.
how can this be done?
thnx for answer
r
Hi,
dev_lock() looks this way:
void
dev_lock(void)
{
if (!mtx_initialized(&devmtx))
mtx_init(&devmtx, "cdev", NULL, MTX_DEF);
mtx_lock(&devmtx);
}
I wonder why is the mtx_initialized checking necessary? shouldnt explicit
initialization be sufficient?
thnx for ans
On Mon, Aug 22, 2005 at 02:06:45PM +0200, Dag-Erling Sm?rgrav wrote:
> Divacky Roman <[EMAIL PROTECTED]> writes:
> > witten ~# sysctl kern.maxfiles=10
> > kern.maxfiles: 10 -> 10
> > witten ~# sysctl kern.maxfilesperproc=10
> > kern.maxfiles
On Sun, Aug 21, 2005 at 01:26:37PM +0300, victor cruceru wrote:
> And errno (from a failed open) is ?
sorry for not mentioning it... of course its:
Too many open files
(obtained by perror())
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hi
I wrote this:
witten /tmp# cat x.c
#include
#include
#include
#define MAX 10
main()
{
int i = MAX;
for (; i>0; i--) {
if (open("/dev/null", O_RDONLY) == -1) {
printf("FUCK: %i\n", MAX-i);
p
hi
I made patches for usr.bin to compile with gcc4.x (tested with 4.1 snapshot),
here it is:
hysteria.sk/~neologism/find.patch
hysteria.sk/~neologism/hexdump.patch
hysteria.sk/~neologism/mkuzip.patch
hysteria.sk/~neologism/tar.patch
hysteria.sk/~neologism/wc.patch
hysteria.sk/~neologism/window.pa
On Fri, Jun 03, 2005 at 02:15:19AM -0700, Bao Zhao wrote:
> Linux use buddy allocator.but I find it seems that
> FREEBSD uses single page linked list. but SLAB and
> some drivers need continuous physical pages, so I
> wonder how FREEBSD solved this problem.
man contigmalloc
_
On Thu, Jun 02, 2005 at 03:59:35PM -0700, Singh, Vijay wrote:
> Hello, while doing a make buildkernel on a FreeBSD 6.0 system, I get a
> compile failure in pf (depend):
>
> ===> pf (depend)
> @ -> /usr/src/sys
> machine -> /usr/src/sys/i386/include
> echo "#define DEV_PF 1" > opt_pf.h
> echo "#def
On Mon, May 09, 2005 at 09:43:02AM -0600, Siddharth Aggarwal wrote:
>
> Hi,
>
> I was wondering why the limit for file system snapshots in BSD 5 has been
> set to 20. Is it a limitation due to the way this feature has been
> implemented?
use the force, read the source ;)
/*
* The maximum nu
On Fri, May 06, 2005 at 09:39:21AM +0200, [EMAIL PROTECTED] wrote:
>
>
> >Halil Demirezen wrote:
> >> Hello,
> >>
> >> First of all, I am not sure if this is the correct mail list with posting
> >this
> >> mail. I apologize for that.. Second, I may seem to have little
> >> C knowledge, though
On Sun, Apr 24, 2005 at 10:50:16PM -0700, Ron Chen wrote:
> Hi,
>
> I am trying to add a new feature in Gridengine
> (free/opensource) to support ex-LSF users - there are
> more and more LSF users migrating to Gridengine), and
> some requested this one:
>
> In LSF, a user can specify from the com
On Mon, Apr 11, 2005 at 08:03:24PM +0400, Vladislav Shabanov wrote:
> I`ve found the following code in sysv_shm.c :
>
>
> static void
> shminit()
> {
> int i;
>
> TUNABLE_INT_FETCH("kern.ipc.shmmaxpgs", &shminfo.shmall);
> for (i = PAGE_SIZE; i > 0; i--) {
>
On Tue, Apr 12, 2005 at 06:01:52PM +0530, Dipjyoti Saikia wrote:
> Hi ,
>
> I am writing a device driver and using DELAY() to intoduce delays in
> my code .Are there any better ways of doing the same for FreeBSD 4.10
> ?
you can use [tm]sleep for this... or with another approach callouts might
> The biggest problem is keeping history here. Doing something like that
> with CVS is a major PITA. We didn't have any old release, so moving
> the repository files didn't create a problem. That's impossible in
> FreeBSD land :)
wasnt here some discussion about moving FreeBSD to subversion (as so
On Tue, Feb 01, 2005 at 02:22:22PM -0800, Sam Leffler wrote:
> Paulo Fragoso wrote:
> >Hi,
> >
> >We are using a Samsung wireless card (PRISM2) with FreeBSD 5.3 in hostap
> >mode and client is running FreeBSD 5.3 with Orinoco wireless card, all
> >works fine but tx rate at hostap it is all time i
Hi
I wrote a patch which removes dependancy on COMPAT_43 from linux abi simulator.
It introduces new option COMPAT_43FORLIN (name should be changed), ie. it
peels of the kernel all the unecessary stuff noone these days use while keeping
linux emulation working...
its kern/73165, pls take a look
On Tue, Jul 27, 2004 at 10:30:05AM -0700, Julian Elischer wrote:
>
>
> M. Warner Losh wrote:
>
> >In message: <[EMAIL PROTECTED]>
> > Divacky Roman <[EMAIL PROTECTED]> writes:
> >: Hi,
> >:
> >: If I want to add some file
Hi,
If I want to add some files into kernel sources, what am I supposed to do to
them compile? I added some into sys/net80211/ but they dont compile...
I tried sys/conf/files but it does help, just prints a message about having it
defined before...
thnx for help
roman
__
Hi
anyone has read http://gobsd.com/node/view/9 this seems quite serious
and even if it wasnt we should have mmx (+xmm) capable bcopy routines...
the code seems to be easily mergeable
any comments?
Roman Divacky
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http
Hi
I am wondering wheter there is a plan to use precompiled heades once the
3.4 gcc is imported. that should cut compile times...
any thoughts?
thnx
roman
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To
Hi
Is there any way how can I see which proceses are ktraced? It would be
neat to have this feature...
roman
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