[Pkg-alsa-devel] Bug#912968: Bug#912968: segfault after plugin Plantronics Savi 7xx

[Elimar Riesebieter]

* Jörg Frings-Fürst <jff at flyingpenguin.de> [2018-11-05 10:54 +0100]:

> Package: libasound2
> Version: 1.1.7-1
> Severity: important
> 
> 
> Hello,
> 
> after plugin Plantronics Savi 7xx I get an segfault and pulseaudio crashes.
> 
> 
> 
> Log:
> 
> Nov  5 10:44:37 ganymed kernel: [ 3847.111444] usb 1-3.4: new full-speed USB device number 8 using ehci-pci
> Nov  5 10:44:37 ganymed kernel: [ 3847.224463] usb 1-3.4: New USB device found, idVendor=047f, idProduct=ac01, bcdDevice= 1.65
> Nov  5 10:44:37 ganymed kernel: [ 3847.224468] usb 1-3.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> Nov  5 10:44:37 ganymed kernel: [ 3847.224472] usb 1-3.4: Product: Plantronics Savi 7xx
> Nov  5 10:44:37 ganymed kernel: [ 3847.224474] usb 1-3.4: Manufacturer: Plantronics
> Nov  5 10:44:37 ganymed kernel: [ 3847.486225] input: Plantronics Plantronics Savi 7xx as /devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.4/1-3.4:1.3/0003:047F:AC01.0008/input/input22
> Nov  5 10:44:37 ganymed kernel: [ 3847.544024] plantronics 0003:047F:AC01.0008: input,hiddev0,hidraw4: USB HID v1.11 Device [Plantronics Plantronics Savi 7xx] on usb-0000:00:12.2-3.4/input3
> Nov  5 10:44:37 ganymed mtp-probe: checking bus 1, device 8: "/sys/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.4"
> Nov  5 10:44:37 ganymed mtp-probe: bus: 1, device: 8 was not an MTP device
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: thunar-volman: Nicht unterstützter USB-Gerätetyp »usb«.
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) config/udev: Adding input device Plantronics Plantronics Savi 7xx (/dev/input/event8)
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (**) Plantronics Plantronics Savi 7xx: Applying InputClass "evdev keyboard catchall"
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (**) Plantronics Plantronics Savi 7xx: Applying InputClass "libinput keyboard catchall"
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) Using input driver 'libinput' for 'Plantronics Plantronics Savi 7xx'
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) systemd-logind: got fd for /dev/input/event8 13:72 fd 72 paused 0
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (**) Plantronics Plantronics Savi 7xx: always reports core events
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (**) Option "Device" "/dev/input/event8"
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (**) Option "_source" "server/udev"
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) event8  - Plantronics Plantronics Savi 7xx: is tagged by udev as: Keyboard
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) event8  - Plantronics Plantronics Savi 7xx: device is a keyboard
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) event8  - Plantronics Plantronics Savi 7xx: device removed
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.4/1-3.4:1.3/0003:047F:AC01.0008/input/input22/event8"
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) XINPUT: Adding extended input device "Plantronics Plantronics Savi 7xx" (type: KEYBOARD, id 17)
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (**) Option "xkb_model" "pc105"
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (**) Option "xkb_layout" "de"
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (WW) Option "xkb_variant" requires a string value
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (WW) Option "xkb_options" requires a string value
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) event8  - Plantronics Plantronics Savi 7xx: is tagged by udev as: Keyboard
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: (II) event8  - Plantronics Plantronics Savi 7xx: device is a keyboard
> Nov  5 10:44:38 ganymed panel-5-pulseau[4246]: Disconected from the PulseAudio server. Attempting to reconnect in 5 seconds.
> Nov  5 10:44:38 ganymed kernel: [ 3847.751683] pulseaudio[21200]: segfault at fffffffffffffff0 ip 00007f938f6e2906 sp 00007ffd773790c0 error 5 in libasound.so.2.0.0[7f938f6d5000+8f000]
> Nov  5 10:44:38 ganymed kernel: [ 3847.751689] Code: 36 08 00 e8 8c 2c ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 55 53 48 83 ec 08 48 8b 35 13 47 0c 00 48 85 ff 0f 84 0d 01 00 00 <48> 8b 57 20 48 8b 4f 28 48 89 fb 31 ed 48 8d 05 f6 46 0c 00 48 89 
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: thunar-volman: Nicht unterstützter USB-Gerätetyp »snd-usb-audio«.
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: thunar-volman: Nicht unterstützter Eingabegerätetyp »/dev/input/event8«.
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: thunar-volman: Nicht unterstützter Eingabegerätetyp »(null)«.
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: thunar-volman: Nicht unterstützter USB-Gerätetyp »snd-usb-audio«.
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: thunar-volman: Nicht unterstützter USB-Gerätetyp »usbhid«.
> Nov  5 10:44:38 ganymed /usr/lib/gdm3/gdm-x-session[3081]: thunar-volman: Nicht unterstützter USB-Gerätetyp »snd-usb-audio«.

This is more or less your logfile from the GnomeDiaplayManager. It
woud be helpful to get the backtrace of the segfault or grep the
logs for (pulse|libasound). I assume there is a problem with the 
libasound_module_pcm_a52.so

There is a similar bug in https://bugs.archlinux.org/task/60616.
Upstream has a patch at 
http://git.alsa-project.org/?p=alsa-plugins.git;a=commit;h=a4e7e1282c57a2f4e83afe9a4008042d8b4c5bb9
which I can't test because here is no a52 device available......


Elimar
-- 
  Numeric stability is probably not all that
  important when you're guessing;-)
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