Re: MADV_FREE and wait4 EFAULT

On Fri, Apr 19, 2013 at 5:49 AM, Konstantin Belousov kostik...@gmail.comwrote: It would be of some interest to see the evidence. Certainly. Here is some of the debugging messages that I added to my application. The first line is a print statement that executes after the system call returns.

Re: MADV_FREE and wait4 EFAULT

of knowledge in this area, conducting experiments is quite painful at the moment. Thanks, Carl ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr

MADV_FREE and wait4 EFAULT

I am seeing wait4 system calls failing with an EFAULT and I am trying to understand what might be going wrong. An inspection of the wait4 implementation suggests the opportunity for EFAULT is within its invocations of copyout. In my situation, the status and rusage pointer arguments contain

Re: close(2) while accept(2) is blocked

On Thu, Mar 28, 2013 at 9:54 AM, Andriy Gapon a...@freebsd.org wrote: But the summary seems to be is that currently it is not possible to break a thread out of accept(2) (at least without resorting to signals). This is a known problem for Java. Closing a socket that another thread is block

Re: No bus_space_read_8 on x86 ?

On 10/13/12 03:26, Robert Watson wrote: On Fri, 12 Oct 2012, Carl Delsey wrote: Indeed -- and on non-x86, where there are uncached direct map segments, and TLB entries that disable caching, reading 2x 32-bit vs 1x 64-bit have quite different effects in terms of atomicity. Where uncached I

Re: No bus_space_read_8 on x86 ?

leave them to deal with it on their own at the risk of possibly some duplicated code. Thanks, Carl ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers

Re: No bus_space_read_8 on x86 ?

for those who have to do that as well as the implementation for 64-bit. Anyhow, it sounds like we are basically in agreement. I'll put together a patch and send it out for review. Thanks, Carl ___ freebsd-hackers@freebsd.org mailing list http

No bus_space_read_8 on x86 ?

I noticed that the bus_space_*_8 functions are unimplemented for x86. Looking at the code, it seems this is intentional. Is this done because on 32-bit systems we don't know, in the general case, whether to read the upper or lower 32-bits first? If that's the reason, I was thinking we could

Re: listing all modules compiled into a kernel instance

/drivers. --Carl ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org

Re: listing all modules compiled into a kernel instance

that the GENERIC kernel has no such statement and contains ucom. Since the man pages are therefore in error, I've already provided HPS with a patch that perhaps he will use to correct the man pages. --Carl ___ freebsd-hackers@freebsd.org mailing list http

Re: listing all modules compiled into a kernel instance

the functionality doesn't change. IMHO, this is a bug that needs to be fixed, not just for ucom but any implicitly included driver. Who should submit a bug report? Carl / K0802647 ___ freebsd-hackers

listing all modules compiled into a kernel instance

query an existing kernel for *all* compiled-in modules? I'm using FreeBSD-8.1-RELEASE-amd64/i386. Carl / K0802647 ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo

binary compatibility query

is the following guidance for driver vendors which falls just short of answering my question: http://wiki.freebsd.org/VendorInformation (Too bad the fancy illustration is missing.) Regards, Carl ___ freebsd-hackers@freebsd.org mailing list http

Re: binary compatibility query

binary only executes system calls indirectly through libc interfaces, as far as libc and libm are concerned, are new symbols the only thing I need to worry about? Carl ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo

Re: critical floating point incompatibility

On 12/20/07, Peter Jeremy [EMAIL PROTECTED] wrote: I believe this is an oversight. See the thread beginning http://lists.freebsd.org/pipermail/freebsd-stable/2007-November/037947.html Thanks for the pointer into the -stable mailing list. The incorrect precision control bits is a serious

critical floating point incompatibility

to the i386 default for i386 binaries. Is the current behavior intended? Carl ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]

Re: Accounting test data

Diomidis Spinellis wrote: I'm testing the backwards compatibility of the process accounting processing tools (sa(8) and lastcomm(1)) with the upcoming new acct(5) record format. If you have root access on a FreeBSD AMD64, Sparc64, ia64, or PowerPC machine please run the shell script

Re: how to configure mail server by freebsd 4.11

edytocho tocho wrote: how to configure mail server by freebsd 4.11 This is not the correct list for such questions, questions@ is more appropriate, further, 4.11 isn't supported anymore. I suggest you to read the chapter about mail servers in the handbook (http://www.freebsd.org/handbook)

4.8-R: strange hitch in user ppp Rx data flow

FreeBSD 4.8-R user ppp P II - 400 128 MB RAM 56K ext. modem, 45.3K connection When I updated from 4.3-R to 4.8-R recently I immediately noticed a strange hitch in the flow of received data from user ppp to TCP/IP applications. For example, with the BSD ftp client, when receiving a file, the

Incompatibility between FreeBSD make.conf and imake 4.3.0

I just discovered an incompatibility between the handling of CFLAGS in FreeBSD 4.8-R (and other versions, I'm sure) and in imake 4.3.0. Let me give you the symptom first. When building both normal and shared libraries, using an Imakefile that uses the automatic object rule generation provided by

mmap, shmget, and MAP_HASSEMAPHORE

Hi! I hope I'm asking in the right newsgroup: 1) What is the effect (from a user-space application programmer's point of view) of using the MAP_HASSEMAPHORE flag when calling mmap(...)? 2) And why is there no equivalent flag when using shmget(...)? I tried reading the manuals+web, but since in

read a file from a driver

? If so, how? open() and read() are obviously in libc which rules them out. Do I have to write my own in assembler? -- Carl Kreider Wind River Doctor Design Services 700 E Beardsley Suite 14A Elkhart Indiana 46514 219-206-8050 x104 [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL

Another kernel newbie

, in /usr/local/src and am ready to compile. However, sys/bus.h wants device_if.h and bus_if.h, which apparently are generated dynamically. How do I make that magic happen? -- Carl Kreider Doctor Design Services 700 E Beardsley Suite 14A Elkhart Indiana 46514 219-206-8050 x104 [EMAIL PROTECTED

Swedish accent key

it but unfortunately its reversed. Any ideas on how to get this working? Thanks -- Carl Johan Madestrand [EMAIL PROTECTED] LoRd_CJ on IRC To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message