linux-kernel - Re: [GIT PULL] sound updates for 4.19-rc1

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Date:   Wed, 15 Aug 2018 15:47:32 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] sound updates for 4.19-rc1

On Tue, Aug 14, 2018 at 5:35 AM Takashi Iwai <tiwai@...e.de> wrote:
>
> please pull sound updates for v4.19-rc1 from:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git tags/sound-4.19-rc1

Uhhoh. This doesn't work for me on my laptop. I get this

  input: HDA Intel PCH Headphone Mic as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input24
  input: HDA Intel PCH HDMI/DP,pcm=3 as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input25
  input: HDA Intel PCH HDMI/DP,pcm=7 as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input26
  input: HDA Intel PCH HDMI/DP,pcm=8 as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input27
  input: HDA Intel PCH HDMI/DP,pcm=9 as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input28
  input: HDA Intel PCH HDMI/DP,pcm=10 as
/devices/pci0000:00/0000:00:1f.3/sound/card0/input29
  BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
  PGD 0 P4D 0
  Oops: 0010 [#1] SMP PTI
  CPU: 3 PID: 863 Comm: alsactl Not tainted 4.18.0-03113-g0a957467c5fd #35
  Hardware name: Dell Inc. XPS 13 9350/09JHRY, BIOS 1.5.1 08/18/2017
  RIP: 0010:          (null)
  Code: Bad RIP value.
  RSP: 0018:ffff914e01f87d60 EFLAGS: 00010286
  RAX: 0000000000000000 RBX: ffff88c5ab78acc0 RCX: 0000000000000000
  RDX: 0000000000000001 RSI: ffffffffc08d118b RDI: 0000000000000001
  RBP: ffff88c5a6d3a000 R08: ffffffffffffffff R09: 0000000000000000
  R10: 0000000000000f07 R11: 0000000000000000 R12: ffff88c5aac07800
  R13: ffff88c5abe65000 R14: 00007ffe1c1abaa0 R15: 0000000000000000
  FS:  00007fc33ddc9740(0000) GS:ffff88c5bed80000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: ffffffffffffffd6 CR3: 0000000468a96002 CR4: 00000000003606e0
  Call Trace:
   ? cap_single_sw_put+0x4a/0x60 [snd_hda_codec_generic]
   ? snd_ctl_elem_write+0xd1/0x1a0 [snd]
   ? __kmalloc_track_caller+0x58/0x210
   ? _copy_from_user+0x37/0x60
   ? snd_ctl_ioctl+0x636/0x700 [snd]
   ? __seccomp_filter+0x44/0x4c0
   ? do_vfs_ioctl+0xa4/0x620
   ? set_close_on_exec+0x2a/0x60
   ? ksys_ioctl+0x70/0x80
   ? __x64_sys_ioctl+0x16/0x20
   ? do_syscall_64+0x55/0x170
   ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
  CR2: 0000000000000000
  ---[ end trace cc6a1092bf03ff70 ]---
  RIP: 0010:          (null)
  Code: Bad RIP value.
  RSP: 0018:ffff914e01f87d60 EFLAGS: 00010286
  RAX: 0000000000000000 RBX: ffff88c5ab78acc0 RCX: 0000000000000000
  RDX: 0000000000000001 RSI: ffffffffc08d118b RDI: 0000000000000001
  RBP: ffff88c5a6d3a000 R08: ffffffffffffffff R09: 0000000000000000
  R10: 0000000000000f07 R11: 0000000000000000 R12: ffff88c5aac07800
  R13: ffff88c5abe65000 R14: 00007ffe1c1abaa0 R15: 0000000000000000
  FS:  00007fc33ddc9740(0000) GS:ffff88c5bed80000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: ffffffffffffffd6 CR3: 0000000468a96002 CR4: 00000000003606e0

and I haven't tried to figure out what exactly broke yet. So no
bisection or similar, thought I'd send this out first.

But iooks like something jumps through a NULL pointer.

Any ideas?

            Linus