On Wed, Feb 3, 2016 at 12:20 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: > On Tue, 02 Feb 2016 22:25:45 +0100, > Dmitry Vyukov wrote: >> >> On Mon, Feb 1, 2016 at 11:36 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: >> > On Mon, 01 Feb 2016 11:15:08 +0100, >> > Dmitry Vyukov wrote: >> >> >> >> Hello, >> >> >> >> The following program triggers WARNING in snd_rawmidi_kernel_write1: >> >> >> >> // autogenerated by syzkaller (http://github.com/google/syzkaller) >> >> #include <unistd.h> >> >> #include <sys/types.h> >> >> #include <sys/stat.h> >> >> #include <sys/uio.h> >> >> #include <fcntl.h> >> >> >> >> int main() >> >> { >> >> int fd; >> >> struct iovec iov; >> >> >> >> fd = open("/dev/snd/midiC3D0", O_RDWR); >> > >> > What is the 3rd device? Please show /proc/asound/cards content. >> >> Missed this question. Here is it. I run qemu with "-soundhw all" flag. >> >> 0 [Dummy ]: Dummy - Dummy >> Dummy 1 >> 1 [Loopback ]: Loopback - Loopback >> Loopback 1 >> 2 [VirMIDI ]: VirMIDI - VirMIDI >> Virtual MIDI Card 1 >> 3 [port ]: MTPAV - MTPAV on parallel port >> MTPAV on parallel port at 0x378 >> 4 [pcsp ]: PC-Speaker - pcsp >> Internal PC-Speaker at port 0x61 >> 5 [Intel ]: HDA-Intel - HDA Intel >> HDA Intel at 0xfebf0000 irq 24 >> >> But the patch helps with the warning message :) > > Ah, you enabled MTPAV driver. Please drop CONFIG_SND_MTPAV for your > testing. This is known to be unstable and is only for a dedicated > parport device, not meant as a generic device to be covered at all. Dropped CONFIG_SND_MTPAV. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
