Hi, I am getting NULL pointer dereference occasionally at snd_ctl_find_numid+0x38/0x6c in 4.4 kernel while accessing snd_kcontrol. The issue is reproduced ocassionally. Can anybody provide any pointer in fixing the issue. Below is the stack trace : 2662.430298: <2> PC is at snd_ctl_find_numid+0x38/0x6c 2662.437819: <2> LR is at snd_ctl_find_id+0x38/0xd8 2662.662838: <2> [<ffffff8008c4e35c>] snd_ctl_find_numid+0x38/0x6c 2662.667513: <2> [<ffffff8008c4e900>] snd_ctl_find_id+0x38/0xd8 2662.673415: <2> [<ffffff8008c4f488>] snd_ctl_elem_info+0x40/0x11c 2662.678799: <2> [<ffffff8008c4df5c>] snd_ctl_ioctl_compat+0x3f4/0x740 2662.684644: <2> [<ffffff800823477c>] compat_SyS_ioctl+0x124/0xd88 There is no specific usecase when the issue is observed. Sometimes issue occurs during bootup and sometimes during audio usecase. Any suggestion will be helpful. Thanks, Rohit _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
