Hi,
I want to set P_PROTECTED flag for some daemons after it start, without
patching application and kernel.
It possible?
--
Andrey Zonov
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On 30.06.2010 10:26, Andrey Zonov wrote:
Hi,
I want to set P_PROTECTED flag for some daemons after it start, without
patching application and kernel.
It possible?
Did you try sysutils/scprotect?
--
WBR, Andrey V. Elsukov
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On 30 June 2010 10:26, Andrey Zonov andrey.zo...@gmail.com wrote:
Hi,
I want to set P_PROTECTED flag for some daemons after it start, without
patching application and kernel.
It possible?
May be madvise(NULL, 0, MADV_PROTECT) will fit your needs?
(see howto example in usr.sbin/cron).
Note,
On 30 June 2010 11:33, pluknet pluk...@gmail.com wrote:
On 30 June 2010 10:26, Andrey Zonov andrey.zo...@gmail.com wrote:
Hi,
I want to set P_PROTECTED flag for some daemons after it start, without
patching application and kernel.
It possible?
May be madvise(NULL, 0, MADV_PROTECT) will
Hello,
I would like to know the memory usage (total virtual memory) inside a
process and make decisions accordingly.
To be more specific, I am using BerkeleyDB backed set or std::set (C++
STL) depending on my current memory usage
as my process will need to run in a resource constrained
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Hi,
Is there anybody used the Supermicro's BIOS watchdog feature (reboot if
no OS activities)?
It seems that ICH10R's watchdog is supported by ichwd(4) but Supermicro
BIOS needs some special treatments which is beyond what ichwd(4) and
On Tue, Jun 29, 2010 at 06:54:11PM -0500, Sam Fourman Jr. wrote:
Hello FreeBSD hackers.
Last Tuesday blizzard release World of Warcraft 3.3.5, and with this patch
World of warcraft stopped working in FreeBSD 8.1 amd64, it crashes
right after login.
details here:
On 6/30/2010 2:01 AM, Xin LI wrote:
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Hi,
Is there anybody used the Supermicro's BIOS watchdog feature (reboot if
no OS activities)?
It seems that ICH10R's watchdog is supported by ichwd(4) but Supermicro
BIOS needs some special treatments which
Which patch ? icebp generates the SIGTRAP on latest 8-stable, verified
by the following trivival assembler program:
.text
.globl main
main:
.byte 0xf1
xorl %edi,%edi
call exit
Thank you for your reply, I did not know enough assembly to test
On Wed, Jun 30, 2010 at 8:43 AM, Sam Fourman Jr. sfour...@gmail.com wrote:
Which patch ? icebp generates the SIGTRAP on latest 8-stable, verified
by the following trivival assembler program:
.text
.globl main
main:
.byte 0xf1
xorl %edi,%edi
call
Hi guys,
I currently set:
.POSIX=
In a Makefile thinking that it would enable only POSIX
functionality, and was fidgeting around with the Makefile trying to
get it to work. In short, I used secondary expansion, it worked, then
compared the output from gmake and it failed (because they
Yes, but I want change process flags without kernel hacking/loading
modules or modification applications.
Andrey V. Elsukov пишет:
On 30.06.2010 10:26, Andrey Zonov wrote:
Hi,
I want to set P_PROTECTED flag for some daemons after it start, without
patching application and kernel.
It
On Wed, Jun 30, 2010 at 11:26 AM, Garrett Cooper yanef...@gmail.com wrote:
On Wed, Jun 30, 2010 at 8:43 AM, Sam Fourman Jr. sfour...@gmail.com wrote:
Which patch ? icebp generates the SIGTRAP on latest 8-stable, verified
by the following trivival assembler program:
.text
.globl
On Wed, Jun 30, 2010 at 2:22 PM, Sam Fourman Jr. sfour...@gmail.com wrote:
On Wed, Jun 30, 2010 at 11:26 AM, Garrett Cooper yanef...@gmail.com wrote:
On Wed, Jun 30, 2010 at 8:43 AM, Sam Fourman Jr. sfour...@gmail.com wrote:
Which patch ? icebp generates the SIGTRAP on latest 8-stable, verified
Matthew Jacob m...@feral.com writes:
Xin LI delp...@delphij.net writes:
It seems that ICH10R's watchdog is supported by ichwd(4) but
Supermicro BIOS needs some special treatments which is beyond what
ichwd(4) and watchdogd(8) would do...
What do mean special treatment?
The watchdog timer
On 6/30/10 11:23 AM, Andrey Zonov wrote:
Yes, but I want change process flags without kernel hacking/loading
modules or modification applications.
you are going to have to do one of those.
The only alternative is that if you have root you can modify a
processe's flags
using gdb and
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On 2010/06/30 14:49, Dag-Erling Smørgrav wrote:
Matthew Jacob m...@feral.com writes:
Xin LI delp...@delphij.net writes:
It seems that ICH10R's watchdog is supported by ichwd(4) but
Supermicro BIOS needs some special treatments which is beyond
Also, is there perhaps a sideeffect dealing with the size of a char on
FreeBSD vs Linux?
That's a pretty badass way to load assembler instructions on the stack :).
Thanks!
-Garrett
Garrett,
So is this in-fact a FreeBSD kernel bug on amd64?
if so, how hard would it be to patch it so it
Xin LI delp...@delphij.net writes:
Hmm... Sorry I think I didn't described the behavior accurately.
Currently if I enable the Watch Dog option in BIOS, the system
reboots after ~5 mins regardless whether I have ichwd(4) and
watchdogd(8) loaded.
Perhaps the motherboard has additional watchdog
Also, is there perhaps a sideeffect dealing with the size of a char on
FreeBSD vs Linux?
That's a pretty badass way to load assembler instructions on the stack :).
Thanks!
-Garrett
For what it is worth I ran the test code on one of my NetBSD amd64 Xen
Dom0 servers
it generated trapped as
Garrett writes:
Also, is there perhaps a sideeffect dealing with the size of a char on
FreeBSD vs Linux?
That's a pretty badass way to load assembler instructions on the stack :).
I may be totally wrong here - but could it be NX/XD/XN protection ?
/Uffe
On Wed, 30 Jun 2010 14:42:47 -0700
Garrett Cooper yanef...@gmail.com wrote:
On Wed, Jun 30, 2010 at 2:22 PM, Sam Fourman Jr. sfour...@gmail.com
wrote:
On Wed, Jun 30, 2010 at 11:26 AM, Garrett Cooper
yanef...@gmail.com wrote:
On Wed, Jun 30, 2010 at 8:43 AM, Sam Fourman Jr.
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On 2010/06/30 15:19, Dag-Erling Smørgrav wrote:
Xin LI delp...@delphij.net writes:
Hmm... Sorry I think I didn't described the behavior accurately.
Currently if I enable the Watch Dog option in BIOS, the system
reboots after ~5 mins regardless
On Wed, Jun 30, 2010 at 4:03 PM, Uffe Jakobsen u...@uffe.org wrote:
Garrett writes:
Also, is there perhaps a sideeffect dealing with the size of a char on
FreeBSD vs Linux?
That's a pretty badass way to load assembler instructions on the stack
:).
I may be totally wrong here - but could
2010/6/30 Alexander Kabaev kab...@gmail.com:
On Wed, 30 Jun 2010 14:42:47 -0700
Garrett Cooper yanef...@gmail.com wrote:
On Wed, Jun 30, 2010 at 2:22 PM, Sam Fourman Jr. sfour...@gmail.com
wrote:
On Wed, Jun 30, 2010 at 11:26 AM, Garrett Cooper
yanef...@gmail.com wrote:
On Wed, Jun 30,
On Wed, 30 Jun 2010 16:45:18 -0700
Garrett Cooper yanef...@gmail.com wrote:
Now make icebp_func const and observe the program start working. The
test case is broken as written, because icebp_func array is
writable, so in ends up in a non-const part of .bss, which is not
marked as
Alexander Kabaev writes:
On Wed, 30 Jun 2010 16:45:18 -0700
Garrett Cooper yanef...@gmail.com wrote:
Which means that Linux is broken in this regard because it's loading
data as text, not data as data and text as text?
Thanks,
Nope, I think this is i386 vs. amd64 difference. NX page
i386 32bit-mode page table has no NX bit - the PAE page table has...
You are correct, I went in my BIOS, and disabled execute bit.
Then when I run the test C code, the get trapped just as expected
on both 8.1 amd64 and CURRENT amd64
however World of warcraft still segfaults even though execute
Can you explain how change flags with /dev/kmem?
kvm_write(3) not work for this.
Julian Elischer пишет:
On 6/30/10 11:23 AM, Andrey Zonov wrote:
Yes, but I want change process flags without kernel hacking/loading
modules or modification applications.
you are going to have to do one of those.
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