For that reason, when you mprotect an area of non-shared, anonymous
memory to no access and then back to writable, Linux has no way of
knowing that the memory wasn't set for COW before you make it
unwritable. It goes ahead and makes all the pages in the area COW.
That means that if I do
Dear Hackers,
Is there any chance that the patch given in kern/40611 could be
committed to the 4-STABLE tree? It has the desirable effect of making
eg. the linux-sun-jdk14 port usable as a non-root user. This would
appear to my untutored eye to be a sub-set of the differences already
From: [EMAIL PROTECTED]
[mailto:owner-freebsd-hackers;FreeBSD.ORG]On Behalf Of Paul Everlund
Sent: Tuesday, November 12, 2002 10:42 AM
To: [EMAIL PROTECTED]
Subject: Network connection problem: SIS, miibus
Hi all!
Did try questions, without any reply, so I'm trying here...
I have a
-Original Message-
From: [EMAIL PROTECTED]
[mailto:owner-freebsd-hackers;FreeBSD.ORG]On Behalf Of Matthew Dillon
Sent: Friday, November 08, 2002 2:08 AM
To: [EMAIL PROTECTED]
Subject: Int 0x15 and VM86 question
I've been pulling my hair out all night trying to figure out how
Hi,
Does anyone know if someone is working on the driver for Atheros
802.11a chipset? I heard from Atheros there're people actively
developing driver for Linux/FreeBSD and would probably be ready
in a few months, but couldn't get any more detail. A few more
months is probably more than I'm
There may be additional issues with the scheduler, though they may not
be related to the issue you have. Check www.freebsd.org/~dick/sched.descr
I was under the impression that Peter Dufault had re-assumed this matter,
but not much has happened on most of the issues.
Could you add the this
This is quite interesting. I'm no scheduler expert, but my understanding
is priority PUSER won't degrade and is only set in kernel mode after
waking up from a sleep. In user mode, processes should always have priority
p_usrpri = PUSER, it is obviously not true for a negative nice value:
Just saw it in the news,
http://abcnews.go.com/sections/tech/DailyNews/yahoo000207.html
Does anyone know the detail?
-lq
To Unsubscribe: send mail to [EMAIL PROTECTED]
with "unsubscribe freebsd-hackers" in the body of the message
Why have two files bus_at386.h and bus_pc98.h? I386_BUS_PIO_IND should be
able to live with I386_BUS_PIO and I386_BUS_MEMIO happily together.
Because they are different in the type of bus_space_tag_t from each
other. It is the u_long in PC/AT and the structure in PC-98. For
example,
I think it is difficult to implement such conversion because:
- Not only bus space stuff also resource manager stuff need to
perform such conversion.
Why? Both bus_space_handle_t and bus_space_tag_t are supposed to be
opaque types. Resource manager needs not know the implementation
When the kernel wants to access any user data, it either copies them into
the kernel or maps them into kernel address space. Can anyone tell me the
reasons why this is done? When a process enters the kernel mode, the
page tables are not changed.
I have taken this for granted for a long
Hi,
I have a 4-processor machine but I want to configure FreeBSD-4.0
to only use 1 of the processors for some tests. In addition I want the
local APIC to be enabled. It seems currently that the APIC is only enabled
when the kernel is compiled with the SMP option. However, when I
Hi
I have the next question.
The FreeBSD on i386 don't use GS register, even kernel DDB don't show
it. And at the time when kernel loaded and operational GS didn't
initialized yet and have some garbage value (something like 0x1f, i.e.
pointed to the LDT). But because no one don't touch
I was under the impression that this was a no-no one should use
copyin/copout friends to access memory on users's stacks. Although
this appears to work on the i386, if I try this on the alpha I take a
fatal trap when accessing *set.
So -- how does this work on the i386? Is the user's
:Thanks. It seems to me that for a filesystem, a block (or a fragment) is
:the unit of I/O. Even if a single byte is modified, an entire block
:probably consisting of multiple sectors must be written back to the disk.
:As you said, there is no differnce whether we write this block one sector
I am working on a small threaded program
that uses aio_read(). In my first attempt
to run the program it killed my machine
instantly. The second time it only locked
it solid. I get no messages, warnings, or
errors.
I am certain that my program is not correct
(besides the obvious
The flag MNT_RELOAD is not documented in mount manpages. From the source
code, I find that it is always used along with MNT_UPDATE which can be
speficied by user (-u option). Can anyone explain the usage of MNT_RELOAD
for me? It seems not to be used normally.
Any help is appreciated.
The flag MNT_RELOAD is not documented in mount manpages. From the source
code, I find that it is always used along with MNT_UPDATE which can be
speficied by user (-u option). Can anyone explain the usage of MNT_RELOAD
for me? It seems not to be used normally.
Any help is appreciated.
If you boot single-user, root will be mounted read-only and you should
be able to 'tunefs -n enable /dev/rda0a' and reboot.
-Matt
Matthew Dillon
[EMAIL PROTECTED]
If you boot single-user, root will be mounted read-only and you should
be able to 'tunefs -n enable /dev/rda0a' and reboot.
-Matt
Matthew Dillon
dil...@backplane.com
I have tried gdb from 3.2-BETA, 3.2-RELEASE, and 3.2-STABLE, as well as the
gdb that was built from the exact same CVS checkout as the kernel owas from,
they all give the same error.
--
David Cross | email: cro...@cs.rpi.edu
Systems Administrator/Research
Is there anything I can do on my end (we have a complete CVS repository,
synced every 4 hours. I would like to use the *exact* same gdb that we
compiled the world from if possible, I am affraid of using a more recent
gdb will result in not being able to read the core (I am unable to use
a
gdb -k kernel.1 vmcore.1
GNU gdb 4.18
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type show copying to see the conditions.
There is
On a related note, I don't know if people use xanim, a movie viewer in
the ports collection, but it's recently been upgraded to support
dynamically loadable codecs. The problem is that none of the codecs
are compiled for FreeBSD, although there are three Linux versions :-).
To use them
On a related note, I don't know if people use xanim, a movie viewer in
the ports collection, but it's recently been upgraded to support
dynamically loadable codecs. The problem is that none of the codecs
are compiled for FreeBSD, although there are three Linux versions :-).
To use them
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