16 Jan
2009
16 Jan
'09
8:31 a.m.
Hi you all,
I am trying to compile a RT kernel after the recent fix by Adam Samson but
probably I am missing something.
I have saved this content in a text file (adam_patch)
--- linux-2.6.26/kernel/softirq.c_orig 2009-01-04 14:41:06.000000000 +0000
+++ linux-2.6.26/kernel/softirq.c 2009-01-04 14:41:49.000000000 +0000
@@ -657,7 +657,7 @@
local_irq_disable();
list = __get_cpu_var(tasklet_hi_vec).head;
__get_cpu_var(tasklet_hi_vec).head = NULL;
- __get_cpu_var(tasklet_hi_vec).tail = &__get_cpu_var(tasklet_vec).head;
+ __get_cpu_var(tasklet_hi_vec).tail = &__get_cpu_var(tasklet_hi_vec).head;
local_irq_enable();
__tasklet_action(a, list);
but when tryin to apply the patch...
agf:/usr/src/linux-source-2.6.26# patch -p1 -i adam_patch
patching file kernel/softirq.c
Hunk #1 FAILED at 657.
1 out of 1 hunk FAILED -- saving rejects to file kernel/softirq.c.rej
Ingo Molnar uploaded a new rt-13 patch (10-Jan-2009), but I am not sure if
the latest fixes by Adam are included... 'cause jackd freezes when trying to
use alsa seq
Any ideas?
regards
raffaele
16 Jan
16 Jan
10:56 a.m.
On 1/16/09, Cassiel <raffaele.morelli(a)gmail.com> wrote:
Hi you all,
I am trying to compile a RT kernel after the recent fix by Adam Samson but
probably I am missing something.
I have saved this content in a text file (adam_patch)
--- linux-2.6.26/kernel/softirq.c_orig 2009-01-04 14:41:06.000000000 +0000
+++ linux-2.6.26/kernel/softirq.c 2009-01-04 14:41:49.000000000 +0000
@@ -657,7 +657,7 @@
local_irq_disable();
list = __get_cpu_var(tasklet_hi_vec).head;
__get_cpu_var(tasklet_hi_vec).head = NULL;
- __get_cpu_var(tasklet_hi_vec).tail = &__get_cpu_var(tasklet_vec).head;
+ __get_cpu_var(tasklet_hi_vec).tail = &__get_cpu_var(tasklet_hi_vec).head;
local_irq_enable();
__tasklet_action(a, list);
but when tryin to apply the patch...
agf:/usr/src/linux-source-2.6.26# patch -p1 -i adam_patch
patching file kernel/softirq.c
Hunk #1 FAILED at 657.
1 out of 1 hunk FAILED -- saving rejects to file kernel/softirq.c.rej
One thing you could do to find out the reason for the failure is to
see if the seven lines starting at line 657 in softirq.c are indeed
what the patch file (minus the line starting with '+', and the '-'
sign at the beginning of the previous line) contains. If so, you could
even try to manually change
__get_cpu_var(tasklet_hi_vec).tail = &__get_cpu_var(tasklet_vec).head;
to
__get_cpu_var(tasklet_hi_vec).tail = &__get_cpu_var(tasklet_hi_vec).head;
If not, then you're dealing with the source of a different version of
the kernel. But even then, you may still find the above line nearby
(perhaps in a slightly different context) and try to change it.
HTH
Andras
11:58 a.m.
Hi
thanks for the hint, I dont see this patch befor. I have recompile my
(vanila) 2.6.26.8-rt12 with the Adam Samson patch added, and everything
work well now with alsa and jack. Realy nice.
regards hermann
Am Freitag, den 16.01.2009, 13:31 +0100 schrieb Cassiel:
Hi you all,
I am trying to compile a RT kernel after the recent fix by Adam Samson
but probably I am missing something.
I have saved this content in a text file (adam_patch)
--- linux-2.6.26/kernel/softirq.c_orig 2009-01-04 14:41:06.000000000
+0000
+++ linux-2.6.26/kernel/softirq.c 2009-01-04 14:41:49.000000000 +0000
@@ -657,7 +657,7 @@
local_irq_disable();
list = __get_cpu_var(tasklet_hi_vec).head;
__get_cpu_var(tasklet_hi_vec).head = NULL;
- __get_cpu_var(tasklet_hi_vec).tail =
&__get_cpu_var(tasklet_vec).head;
+ __get_cpu_var(tasklet_hi_vec).tail =
&__get_cpu_var(tasklet_hi_vec).head;
local_irq_enable();
__tasklet_action(a, list);
but when tryin to apply the patch...
agf:/usr/src/linux-source-2.6.26# patch -p1 -i adam_patch
patching file kernel/softirq.c
Hunk #1 FAILED at 657.
1 out of 1 hunk FAILED -- saving rejects to file kernel/softirq.c.rej
Ingo Molnar uploaded a new rt-13 patch (10-Jan-2009), but I am not
sure if the latest fixes by Adam are included... 'cause jackd freezes
when trying to use alsa seq
Any ideas?
regards
raffaele
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4:09 p.m.
On Fri, 2009-01-16 at 13:31 +0100, Cassiel wrote:
Hi you all,
...
Ingo Molnar uploaded a new rt-13 patch (10-Jan-2009), but I am not
sure if the latest fixes by Adam are included... 'cause jackd freezes
when trying to use alsa seq
Nope, Adam's patch is not part of rt13 (it patched fine on top of it)...
-- Fernando
7:14 p.m.
Cassiel <raffaele.morelli(a)gmail.com> writes:
- __get_cpu_var(tasklet_hi_vec).tail =
&__get_cpu_var(tasklet_vec).head;
+ __get_cpu_var(tasklet_hi_vec).tail = &__get_cpu_var(tasklet_hi_vec).head;
...
Hunk #1 FAILED at 657.
Looks like something (probably your mail client) has mangled the
whitespace at the start of those lines, so it won't match against the
original source any more. You can download the patch directly here:
http://offog.org/stuff/rt-200901/tasklets-fix-tasklet_hi_action.patch
or just make the change by hand (but hopefully it'll make it into the
next -rt patch anyway!).
--
Adam Sampson <ats(a)offog.org> <http://offog.org/>
17 Jan
17 Jan
8:08 a.m.
Thank you RT fellowship,
I tried the patch with vanilla sources and happened the same while the one
downloaded from Adam's web site did the trick.
Now I am successfully running a brand new (double patched!!!) rt-13 kernel
with alsa seq working fine.
regards
raffaele
2009/1/17 Adam Sampson <ats(a)offog.org>
Cassiel <raffaele.morelli(a)gmail.com> writes:
- __get_cpu_var(tasklet_hi_vec).tail =
&__get_cpu_var(tasklet_vec).head;
+ __get_cpu_var(tasklet_hi_vec).tail =
&__get_cpu_var(tasklet_hi_vec).head;
...
Hunk #1 FAILED at 657.
Looks like something (probably your mail client) has mangled the
whitespace at the start of those lines, so it won't match against the
original source any more. You can download the patch directly here:
http://offog.org/stuff/rt-200901/tasklets-fix-tasklet_hi_action.patch
or just make the change by hand (but hopefully it'll make it into the
next -rt patch anyway!).
--
Adam Sampson <ats(a)offog.org> <http://offog.org/>
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Linux-audio-user(a)lists.linuxaudio.org
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18 Jan
18 Jan
3:44 a.m.
I manually applied that change. Are there more places to patch as well?
I will probably never use 2.6.26. Not because of MIDI issues, though.
I have been using 2.6.23 with Ingo's patch, the sources actually from Musix,
not from Debian. Because I have a via-chipset mb, the disk DMA did not work.
Had to compile in (or place in an initrd) the via ide driver and that worked.
2.6.26 has severe problems with this and DMA usually gets disabled after
errors in the init (involving hald). Reenabling it is simple enough but
dangerous.
I probably cannot go on the newer kernels until either this is resolved or the
generic-ide driver will work correctly with the via chips.
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linux-audio-user@lists.linuxaudio.org
6 comments
6 participants
participants (6)
-
Adam Sampson -
Andras Simon -
Cassiel -
David Baron -
Fernando Lopez-Lezcano -
hermann meyer