severity 1060224 important
thanks

I'm seeing similar issues that I suspect are from the same underlying
bug.  This happens whenever I try to connect any or my devices via
bluetooth (all audio devices):

Mar 06 15:19:36 servo kernel: bluetoothd[52214]: segfault at 558c06f488e9 ip 
000055895d916375 sp 00007ffec8852150 error 4 in bluetoothd[55895d8f4000+ec000] 
likely on CPU 3 (core 3, socket 0)
Mar 06 15:19:36 servo kernel: Code: 00 31 c0 e9 54 ff ff ff 66 66 2e 0f 1f 84 
00 00 00 00 00 66 90 f3 0f 1e fa 41 55 41 54 55 53 48 83 ec 08 48 8b 2a 48 8b 
7a 08 <48> 8b 45 20 4c 8b ad 88 00 00 00 4c 8b 20 48 85 ff 74 19 c7 47 08
Mar 06 15:19:36 servo systemd[1]: bluetooth.service: Main process exited, 
code=killed, status=11/SEGV
Mar 06 15:19:36 servo systemd[1]: bluetooth.service: Failed with result 
'signal'.

Note the kernel code is the same as in Joey's report (fwiw).

I'm increasing the severity because bluetooth is currently completely
unusable for me.

If anyone has any suggestions for settings tweaks I could try it would
be greatly appreciated.

Thanks for maintaining!

jamie.


On Sun, 7 Jan 2024 16:26:43 -0400 Joey Hess <i...@joeyh.name> wrote:
> Package: bluez
> Version: 5.71-1
> Severity: normal
> 
> On upgrade to this version, bluetoothd started segfaulting frequently:
> 
> [   59.628624] input: Avantree SP750 (AVRCP) as /devices/virtual/input/input26
> [   97.073761] bluetoothd[838]: segfault at 561314652a23 ip 000056167406a375 
> sp 00007fffb128a200 error 4 in bluetoothd[561674048000+ec000] likely on CPU 
> 11 (core 5, socket 0)
> [   97.073799] Code: 00 31 c0 e9 54 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 
> 66 90 f3 0f 1e fa 41 55 41 54 55 53 48 83 ec 08 48 8b 2a 48 8b 7a 08 <48> 8b 
> 45 20 4c 8b ad 88 00 00 00 4c 8b 20 48 85 ff 74 19 c7 47 08
> [  219.074962] input: Avantree SP750 (AVRCP) as /devices/virtual/input/input27
> [  241.708695] bluetoothd[4477]: segfault at 55c5369dc8d4 ip 000055c069877375 
> sp 00007fff8f7198c0 error 4 in bluetoothd[55c069855000+ec000] likely on CPU 0 
> (core 0, socket 0)
> [  241.708725] Code: 00 31 c0 e9 54 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 
> 66 90 f3 0f 1e fa 41 55 41 54 55 53 48 83 ec 08 48 8b 2a 48 8b 7a 08 <48> 8b 
> 45 20 4c 8b ad 88 00 00 00 4c 8b 20 48 85 ff 74 19 c7 47 08
> 
> To reproduce this crash all I have to do is:
> 
> 1. connect to the bluetooth device
> 2. use it briefly
> 3. stop using it and wait 5 seconds
> 
> Based on the timing, the crash probably occurs when it's put into power save
> mode.
> 
> I have downgraded to 5.70-1.1, which does not have this problem.
> 
> -- System Information:
> Debian Release: trixie/sid
>   APT prefers testing
>   APT policy: (500, 'testing')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
> 
> Kernel: Linux 6.6.9-amd64 (SMP w/12 CPU threads; PREEMPT)
> Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
> Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE not set
> Shell: /bin/sh linked to /usr/bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
> 
> Versions of packages bluez depends on:
> ii  dbus [default-dbus-system-bus]  1.14.10-3+b1
> ii  init-system-helpers             1.66
> ii  kmod                            31-1
> ii  libasound2                      1.2.10-3
> ii  libc6                           2.37-13
> ii  libdbus-1-3                     1.14.10-3+b1
> ii  libdw1                          0.190-1+b1
> ii  libglib2.0-0                    2.78.3-1
> ii  libreadline8                    8.2-3
> ii  libudev1                        255.2-3
> ii  udev                            255.2-3
> 
> bluez recommends no packages.
> 
> Versions of packages bluez suggests:
> pn  pulseaudio-module-bluetooth  <none>
> 
> -- Configuration Files:
> /etc/bluetooth/main.conf changed:
> [General]
> Experimental = true

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