>| How can I obtains an buffer alignement from a "user program" ?
>
>I actually left that as an exercise (after I did it at home
>last night). Did you read the hint (below)?
Well ... either with malloc() and alignement or posix_memalign(),
read() still failed!
My read buffer is in user space, so
| How can I obtains an buffer alignement from a user program ?
I actually left that as an exercise (after I did it at home
last night). Did you read the hint (below)?
Well ... either with malloc() and alignement or posix_memalign(),
read() still failed!
My read buffer is in user space, so it's
I've got compilation error when I call vmalloc() from a user program
(w/o defined __KENEL).
How can I obtains an buffer alignement from a "user program" ?
Randy.Dunlap wrote:
On Mon, 11 Apr 2005 21:14:17 +0200 Yves Crespin wrote:
| Hello,
|
| Using O_DIRECT flag, read() failed
I've got compilation error when I call vmalloc() from a user program
(w/o defined __KENEL).
How can I obtains an buffer alignement from a user program ?
Randy.Dunlap wrote:
On Mon, 11 Apr 2005 21:14:17 +0200 Yves Crespin wrote:
| Hello,
|
| Using O_DIRECT flag, read() failed and errno is EINVAL
Hello,
Using O_DIRECT flag, read() failed and errno is EINVAL.
kernel 2.4.22
Filesystem Ext3 mount on /home
What's wrong ?
Thanks
Yves Crespin
#gcc -Wall -D_GNU_SOURCE direct.c -o direct
#cp direct d
#./direct d
#open failed [d] 040402 0666 errno 22
#
/* --- start code --- */
#include
#include
Hello,
Using O_DIRECT flag, read() failed and errno is EINVAL.
kernel 2.4.22
Filesystem Ext3 mount on /home
What's wrong ?
Thanks
Yves Crespin
#gcc -Wall -D_GNU_SOURCE direct.c -o direct
#cp direct d
#./direct d
#open failed [d] 040402 0666 errno 22
#
/* --- start code --- */
#include stdio.h
Christian Bornträger wrote:
On Wednesday 30 March 2005 15:00, Yves Crespin wrote:
1/ is-it possible to *really* be synchronize. I prefer to have a blocked
write() than use cache and get swap!
Try to mount with the sync option.
exactly async and noatime ?
2/ is-it possible to disable
Hello,
I write a lot of files on a USB disk for video monitoring archiving.
The write program is faster than the USB.
Cache disk take all RAM and kernel start swapping and everything become
very slow.
1/ is-it possible to *really* be synchronize. I prefer to have a blocked
write() than use cache
Hello,
I write a lot of files on a USB disk for video monitoring archiving.
The write program is faster than the USB.
Cache disk take all RAM and kernel start swapping and everything become
very slow.
1/ is-it possible to *really* be synchronize. I prefer to have a blocked
write() than use cache
Christian Bornträger wrote:
On Wednesday 30 March 2005 15:00, Yves Crespin wrote:
1/ is-it possible to *really* be synchronize. I prefer to have a blocked
write() than use cache and get swap!
Try to mount with the sync option.
exactly async and noatime ?
2/ is-it possible to disable
Hi,
Going on a 2.6 kernel, I have a trouble with sigwait()
When I send a kill to this program, the exit code is 143 (signal 15 and
core)!
Is there a workaround ?
Thanks,
Yves
gcc -g -Wall -D_REENTRANT=1 -D_THREAD_SAFE=1 s.c -lpthread -o s
/= début du code =/
#include
#include
#include
Hi,
Going on a 2.6 kernel, I have a trouble with sigwait()
When I send a kill to this program, the exit code is 143 (signal 15 and
core)!
Is there a workaround ?
Thanks,
Yves
gcc -g -Wall -D_REENTRANT=1 -D_THREAD_SAFE=1 s.c -lpthread -o s
/= début du code =/
#include unistd.h
#include
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