[alsa-devel] [regression] 2.6.25-rc4 snd-es18xx broken on Alpha
twhitehe at uwo.ca
Tue Apr 1 20:07:35 CEST 2008
Bob Tracy wrote:
> rct wrote:
>> Rene Herman wrote:
>>> Okay, and applying the attached just makes your sound completely dead in the
>>> (patch to remove es1888_init from a Miata build omitted)
>> I'll try a build with the old OSS "sb" driver, and if that works ok, we
>> may be able to do away with es1888_init() on the Miata. Tyson -- I
>> think you have a Miata if I'm remembering correctly: can you confirm
>> these observations?
> Quick followup: OSS "sb" driver works fine without es1888_init().
Okay. I finally got everything tested on my Miata. Unless I missed
something, the es1888_init routine only gets compiled in with
CONFIG_ALPHA_MIATA. As I've been using the debian generic kernel (i.e.,
CONFIG_ALPHA_GENERIC), I have never relied on this routine for anything.
I did discover, however, when I compiled my own kernel (2.6.25-rc5) with
CONFIG_ALPHA_MIATA, things stopped working. Specifically, I no longer
got any interupts (with or without the es1888_init patch and with or
without the alternative es188xx interupt patch) associated with either
the builtin sound card (es1888) or the IDE controller (CMD646).
With CONFIG_ALPHA_GENERIC I only get one interupt with the es18xx driver
unless I applied to "alternative interupt" handling code. Further,
sometime between 2.6.14 and 2.6.16, mpg321 (using the alsa driver)
started generating "Bad page state in process 'mpg321' ... Trying to fix
it up, but a reboot is needed" kernel messages.
The machine would continue to operate okay though. However, somewhere
between 2.6.16 and 2.6.24, it also started crashing very shortly
thereafter, giving the following backtrace: free_pages_check,
free_hot_cold_pages, put_pages, free_page_and_swap_cache, unmap_cmas,
unmap_region, default_wake_function, do_munmap, sys_munmap, entSys.
Hope this helps.
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