Randell: I tried to debug the firefox consuming the 100% CPU and do some debug. The thread consuming all the CPU is dealing with libasound (is possible to do some backtrace with and see lots of calls), but I din't find any pattern (I'll attach one of them). A also tried with strace the I saw lots of calls to SNDRV_CTL_IOCTL_PCM_*
Randell: I tried to debug the firefox consuming the 100% CPU and do some debug. The thread consuming all the CPU is dealing with libasound (is possible to do some backtrace with and see lots of calls), but I din't find any pattern (I'll attach one of them). A also tried with strace the I saw lots of calls to SNDRV_CTL_ IOCTL_PCM_ *
I hope this can help