[Qemu-devel] Re: Audio

[malc]

On Sun, 13 Sep 2009, Jan Kiszka wrote:

> malc wrote:
> > On Sun, 13 Sep 2009, Jan Kiszka wrote:
> > 
> >> malc wrote:
> >>> The code was just commited that enables "polling" audio mode (oss and
> >>> alsa), it's also unconditionally enabled now to obtain some testing
> >>> coverage, so please give it a whirl, feedback is welcome.
> >> CPU load goes to 100% when starting my Musicpal image. Applying the fix
> >> below and disabling polling again cures this effect here.
> > 
> > Few things:
> > 
> > Thanks for the patch, but i was at a loss how to properly apply it
> > with git and retain all the relevant information (Subject/Authorhsip
> > etc), so for the time being it was applied manually.
> 
> Sorry, the patch was so trivial that I became sloppy.
> 
> > 
> > In the past your mail server was bouncing my replies to threads where
> > you paticipated, and since this new CC-ing madness is in place i'm not
> > sure whether the list reply was delivered to you either, hence i
> > emptied CC header and replying to the list alone.
> 
> Unless the bounce said "mailbox full": Just forward me a recent bounce
> message privately (replace web.de with siemens.com). Typically I get
> wrong black-listings resolved with web.de within a day or less.

No it was something else, i'll forward this message to you to try and
get the bounce.

> 
> > 
> > The Musicpal image i have here is getting stuck somewhere along the
> > way to the point of monitor not being responsive, so i can not test
> > anything myself. FWIW the command line is this:
> > 
> > [...]/arm-softmmu/qemu-system-arm \
> > -M musicpal \
> > -pflash flash.image \
> > -kernel u-boot.bin \
> > -monitor stdio \
> > -m 128 \
> > -redir tcp:8080::80 -redir tcp:2323::23
> 
> Hmm, this setup works for me (current master). Maybe you can catch what
> strace reports or which backtrace gdb generates. Does disabling polling
> or reverting before your changes make it boot again?

930c86820e8e0b6dfcf211bda5e835463d72ff42 is what broke it for me,
Following "fixes" it:

diff --git a/hw/musicpal.c b/hw/musicpal.c
index 1c4f17c..0fe9fd3 100644
--- a/hw/musicpal.c
+++ b/hw/musicpal.c
@@ -238,8 +238,8 @@ static void eth_send(mv88w8618_eth_state *s, int 
queue_index)
     uint8_t buf[2048];
     int len;
 
-
     do {
+        if (!desc_addr) return;
         eth_tx_desc_get(desc_addr, &desc);
         if (desc.cmdstat & MP_ETH_TX_OWN) {
             len = desc.bytes;

[..snip..]

Now that i have musicpal working, i'll try to investigate things further.

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