Takashi Iwai wrote:
At Tue, 13 Oct 2009 10:48:48 +0200, Guillem Solà wrote:
Takashi Iwai wrote:
At Fri, 09 Oct 2009 18:05:28 +0200, Guillem Solà wrote:
Takashi Iwai wrote:
At Fri, 09 Oct 2009 16:15:00 +0200, Guillem Solà wrote:
Takashi Iwai wrote:
> At Fri, 09 Oct 2009 11:19:04 +0200, > Guillem Solà wrote: > > > > >> Hi, >> >> I have a Creative XFi PCIe with ca0110-IBG chip. It's primary use is >> audio input for streaming on a brand new Dell server with RHEL. I have >> been testing latest kernel 2.6.31 through it's releases candidates and >> the card stoped working on 2.6.31-rc6, so now I'm stuck at 2.6.31-rc5. >> With rc5 I made a 2 weeks test and it went flawlessly. >> >> There's another guy who referenced this issue on >> http://mailman.alsa-project.org/pipermail/alsa-devel/2009-September/020876.h... >> and Takashi Iwai said that there is a communication error between the >> codec and the controller. >> >> Any workaround? Is there a bug created related to this issue? >> >> I tried to "extract" the alsa-driver on 2.6.31-rc5 and install it 2.6.31 >> final without success. Also tried to get old snapshots from alsa-driver >> and alsa-kmirror but I cannot compile them. Any place where get some >> info about how to create >> >> >> >> > Then some codes added after rc5 regressed? > The candidates are not so many but a few: > > deadff1665491afce124a8ff83f00f784161f660 > ALSA: hda: track CIRB/CORB command/response states for each codec > > a678cdee25a387c8fc3b2754974695412baf1d85 > ALSA: hda: take cmd_mutex in probe_codec() > > cdb1fbf23181c133fb24f12ad14ccea7dc399599 > ALSA: hda: take reg_lock in azx_init_cmd_io/azx_free_cmd_io > > c32649feb4573b31f0a2bfdf35cbe1351256c764 > ALSA: hda: read CORBWP inside reg_lock > > feb273404f15d86098cb0e81e46330d5c1e22b1b > ALSA: hda: remember last command for each codec > > The suspicious changes are the first one and the third one. > But, anyway, it'd be helpful if you can bisect these. > > If you can use git, git-bisect would be the best to try. > Do bisect only for changes in sound/pci/hda directory between > 2.6.31-rc5 and rc6. > > > thanks, > > Takashi > > > > > Ok I read how to do bisect with git and so on. Also take latest alsa from git.
Now the question is do I have to do bisect from alsa-kernel? (that's what I'm trying now) but that implies recompile kernel in every step, isn't it?
If you can build the kernel by yourself, and you already find that 2.6.31-rc5 works as is, I recommend you to bisect the kernel tree.
As mentioned, the commits to bisect are only for sound/pci/hda directory, and there aren't so many. You can just rebuild the module with "make M=sound/pci/hda" during bisecting.
Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
Ok Think I Finally get it :-)
those are the latest steps I did, AFAIK it was the first commit after 2.6.31-rc5 as you said "The suspicious changes are the first one and the third one."
deadff1665491afce124a8ff83f00f784161f660 is first bad commit
Thanks! That's what I expected (and worried)...
What happens if you apply the patch below to the latest alsa driver (or 2.6.31-rc6)?
Takashi
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index d0effa3..81663a7 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -566,6 +566,7 @@ static void azx_free_cmd_io(struct azx *chip)
static unsigned int azx_command_addr(u32 cmd) { +#if 0 /* XXX */ unsigned int addr = cmd >> 28;
if (addr >= AZX_MAX_CODECS) { @@ -574,6 +575,9 @@ static unsigned int azx_command_addr(u32 cmd) }
return addr; +#else
- return 0;
+#endif }
static unsigned int azx_response_addr(u32 res) @@ -818,6 +822,7 @@ static unsigned int azx_get_response(struct hda_bus *bus, unsigned int addr) { struct azx *chip = bus->private_data;
- addr = 0; /* XXX */ if (chip->single_cmd) return azx_single_get_response(bus, addr); else
I tried the patch you have attached, it patched well (I checked it) but seems to not work
After make I tried to modprobe snd-hda-intel-ca0110 and I saw in dmesg:
hda-intel: Invalid position buffer, using LPIB read method instead. alsactl[8292]: segfault at 0 ip (null) sp bfa83f1c error 14 in ld-2.5.so[54c000+1a000] HDA Intel 0000:05:00.0: PCI INT A disabled
and after reboot:
HDA Intel 0000:05:00.0: PCI INT A -> GSI 38 (level, low) -> IRQ 38 hda-intel: spurious response 0x1102000a:0x1, last cmd=0x000000 hda-intel: azx_get_response timeout, switching to polling mode: last cmd=0x100f0000 hda-intel: Codec #1 probe error; disabling it... hda-intel: spurious response 0x1102000a:0x1, last cmd=0x000000 hda_intel: azx_get_response timeout, switching to single_cmd mode: last cmd=0x100f0000 hda-intel: no codecs initialized HDA Intel 0000:05:00.0: PCI INT A disabled
It seems something went wrong
It's not a right fix but a band-aid. With that patch, load with probe_mask=0x01 option.
Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
uhmm... don't know if I'm doing something wrong but
modprobe snd-hda-codec-ca0110 probe_mask=0x01
says:
FATAL: Error inserting snd_hda_codec_ca0110 (/lib/modules/2.6.31-rc6/extra/snd-hda-codec-ca0110.ko): Unknown symbol in module, or unknown parameter (see dmesg)
in dmesg snd_hda_codec_ca0110: Unknown parameter `probe_mask'
probe_mask option isn't only for snd-hda-intel?
thanks,
Guillem Solà