[alsa-devel] question about aplay fails on arm 64

Clemens Ladisch clemens at ladisch.de
Wed Nov 20 13:48:04 CET 2013

曹能华 wrote:
> Recently, i encounter aplay failed on arm 64 bits core.

I wasn't aware that ALSA's mmap code had been ported to ARM64.

> [   87.403146] 823 (aplay) Bad mode in Error handler detected, code 0xbf000000
> [   87.573201] 823 (aplay) Bad mode in Synchronous Abort handler detected, code 0x86000007
> [   87.743126] 823 (aplay) Internal error: Oops - bad mode: 0 [#1] PREEMPT

What does "bad mode" mean?  Is this a real CPU?  Does it behave correctly?


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