On 2/7/19 15:32, Mark Brown wrote: > On Thu, Feb 07, 2019 at 03:20:41PM +0100, Sylwester Nawrocki wrote: > >> [ 82.109780] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908 >> [ 82.117009] in_atomic(): 1, irqs_disabled(): 128, pid: 1554, name: speaker-test >> [ 82.124235] 3 locks held by speaker-test/1554: >> [ 82.128653] #0: cc8c5328 (snd_pcm_link_rwlock){...-}, at: snd_pcm_stream_lock_irq+0x20/0x38 > Please think hard before including complete backtraces in upstream > reports, they are very large and contain almost no useful information > relative to their size so often obscure the relevant content in your > message. If part of the backtrace is usefully illustrative then it's > usually better to pull out the relevant sections. OK, let me trim the backtrace some more and resend.