16 Jul
2004
16 Jul
'04
6:25 p.m.
On Fri, 2004-07-16 at 10:25, Florian Schmidt wrote:
after reading lee's email i had to try this
kernel.. so i went over to www.de.kernel.org, grabbed 2.6.8-rc1 and patched it up with
this patch:
http://www.ussg.iu.edu/hypermail/linux/kernel/0407.1/1453.html
On first sight it looks very good. many of the sporadic xruns i experienced
with jack in RT mode are gone. even a "find /" parallel to a "make
bzImage"
seems not to provoke any xruns [i use ext3]. But: i use fluxbox and it supports
desktop wheeling [switching desktop via scrollwheel - very handy] and doing this
excessively and rapidly provokes xruns easily. Also starting mozilla just provoked
an xrun..
Try the included patch. Andrew Morton suggested this, and it works
great for me, but it is not in -mm1.
Lee
--- drivers/char/tty_io.c_orig 2004-07-16 16:10:11.000000000 -0400
+++ drivers/char/tty_io.c 2004-07-16 16:10:31.000000000 -0400
@@ -679,17 +679,13 @@
return -ERESTARTSYS;
}
if ( test_bit(TTY_NO_WRITE_SPLIT, &tty->flags) ) {
- lock_kernel();
written = write(tty, file, buf, count);
- unlock_kernel();
} else {
for (;;) {
unsigned long size = max((unsigned long)PAGE_SIZE*2, 16384UL);
if (size > count)
size = count;
- lock_kernel();
ret = write(tty, file, buf, size);
- unlock_kernel();
if (ret <= 0)
break;
written += ret;