[pulseaudio-tickets] [Bug 95055] New: pulseaudio blocked in kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95055

            Bug ID: 95055
           Summary: pulseaudio blocked in kernel
           Product: PulseAudio
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: core
          Assignee: pulseaudio-bugs at lists.freedesktop.org
          Reporter: brian at interlinx.bc.ca
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
                CC: lennart at poettering.net

I have a pulseaudio process that seems to be blocked in the kernel:

kernel: sysrq: SysRq : Show Blocked State
kernel:   task                        PC stack   pid father
kernel: pulseaudio      D ffff8801191a3b98     0 26427      1 0x00000004
kernel:  ffff8801191a3b98 ffffffff81c10500 ffff880002788000 ffff8801191a4000
kernel:  ffff8804afa0e080 ffff8801191a3bd0 ffff8804afa0e080 ffff88049b053000
kernel:  ffff8801191a3bb0 ffffffff81795895 0000000205922d36 ffff8801191a3c60
kernel: Call Trace:
kernel:  [<ffffffff81795895>] schedule+0x35/0x80
kernel:  [<ffffffff817986b3>] schedule_timeout+0x123/0x240
kernel:  [<ffffffff8110b7c0>] ? trace_event_raw_event_tick_stop+0x120/0x120
kernel:  [<ffffffff817993de>] ? _raw_spin_unlock_irqrestore+0xe/0x10
kernel:  [<ffffffffa0477f05>] snd_power_wait+0xb5/0x110 [snd]
kernel:  [<ffffffff810cc790>] ? wake_up_q+0x70/0x70
kernel:  [<ffffffffa0479901>] snd_ctl_elem_info_user+0x61/0xf0 [snd]
kernel:  [<ffffffffa047c33c>] snd_ctl_ioctl+0x5ec/0x6c0 [snd]
kernel:  [<ffffffff8133baac>] ? selinux_file_ioctl+0x10c/0x1c0
kernel:  [<ffffffff8123e7f8>] do_vfs_ioctl+0x298/0x480
kernel:  [<ffffffff81333323>] ? security_file_ioctl+0x43/0x60
kernel:  [<ffffffff8123ea59>] SyS_ioctl+0x79/0x90
kernel:  [<ffffffff8179996e>] entry_SYSCALL_64_fastpath+0x12/0x71

Not sure how it got that way though.

Any advise or hints?

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