mercurial OSS4: savemixer crashing?

[stimuli]

Title says it all. savemixer is crashing on my geode lx system every restart or soundoff.

dmesg:

Code: Select all

[ 1363.146147] Pid: 2062, comm: savemixer Tainted: G      D     2.6.35-23-generic #36-Ubuntu SA Series/SA Series
[ 1363.146174] EIP: 0060:[<016a00d0>] EFLAGS: 00010202 CPU: 0
[ 1363.146196] EIP is at 0x16a00d0
[ 1363.146215] EAX: 00000000 EBX: e41b7e10 ECX: c0345805 EDX: 016b00d1
[ 1363.146238] ESI: 00000000 EDI: 016a00d0 EBP: e41b7dd0 ESP: e41b7d84
[ 1363.146262]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 1363.146285] Process savemixer (pid: 2062, ti=e41b6000 task=e4210cb0 task.ti=e41b6000)
[ 1363.146304] Stack:
[ 1363.146317]  f9d76734 00000000 00000286 00000001 ed1de6e0 00000001 e41b7dc0 c01fd516
[ 1363.146363] <0> c01fe6b0 00000163 fbe30000 e41b7dc8 e41b7dc8 c035a87d c0345805 f9e08008
[ 1363.146414] <0> c0345805 f9e08008 f9d767d0 e41b7f30 f9d54253 e41b7e10 00000000 00000001
[ 1363.146468] Call Trace:
[ 1363.146617]  [<f9d76734>] ? oss_mixer_ext+0xe34/0xed0 [osscore]
[ 1363.146657]  [<c01fd516>] ? __vunmap+0x76/0xe0
[ 1363.146686]  [<c01fe6b0>] ? vmalloc+0x30/0x40
[ 1363.146715]  [<c035a87d>] ? _copy_from_user+0x3d/0x130
[ 1363.146742]  [<c0345805>] ? blk_rq_map_sg+0x1f5/0x260
[ 1363.146772]  [<c0345805>] ? blk_rq_map_sg+0x1f5/0x260
[ 1363.146863]  [<f9d767d0>] ? oss_mixer_ioctl+0x0/0x1e0 [osscore]
[ 1363.146950]  [<f9d54253>] ? oss_cdev_ioctl+0x123/0x270 [osscore]
[ 1363.146983]  [<c0132d5e>] ? kmap_atomic_prot+0x4e/0xf0
[ 1363.147029]  [<c0139545>] ? __wake_up+0x45/0x60
[ 1363.147057]  [<c0345805>] ? blk_rq_map_sg+0x1f5/0x260
[ 1363.147143]  [<f9d543b4>] ? oss_cdev_unlocked_ioctl+0x14/0x20 [osscore]
[ 1363.147175]  [<c03dbf60>] ? n_tty_write+0x0/0x290
[ 1363.147202]  [<c0226a22>] ? vfs_ioctl+0x32/0xb0
[ 1363.147287]  [<f9d543a0>] ? oss_cdev_unlocked_ioctl+0x0/0x20 [osscore]
[ 1363.147316]  [<c02272b9>] ? do_vfs_ioctl+0x79/0x2d0
[ 1363.147342]  [<c03da3a0>] ? tty_write+0x0/0x210
[ 1363.147368]  [<c0227577>] ? sys_ioctl+0x67/0x80
[ 1363.147398]  [<c05c99f4>] ? syscall_call+0x7/0xb
[ 1363.147424]  [<c0345805>] ? blk_rq_map_sg+0x1f5/0x260
[ 1363.147442] Code:  Bad EIP value.
[ 1363.147462] EIP: [<016a00d0>] 0x16a00d0 SS:ESP 0068:e41b7d84
[ 1363.147493] CR2: 00000000016a00d0
[ 1363.147513] ---[ end trace f2c71f5008060f7e ]---


[cesium]

Does 'ossmix' work, or does it crash too? If not, please paste that output here.

I also suggest to try and run savemixer manually (e.g. "savemixer -f ~/testfile" to save or "savemixer -L -f ~/testfile" to restore) and see if you reproduce this crash more easily. If so, try compiling the attached file (e.g. cc -I/usr/lib/oss/include/sys savemixer.c -o ~/savemixer), and use that savemixer. It has more verbose output, and will hopefully allow us to see where it crashes.

[stimuli]

Still crashing. savemixer makes an empty/blank mixer.save

Code: Select all

root@kjsa:/home/rupert# savemixer -f ~/testfile
SNDCTL_MIX_READ: Bad address
Killed
root@kjsa:/home/rupert# cd Downloads/
root@kjsa:/home/rupert/Downloads# cc -I/usr/lib/oss/include/sys savemixer.c -o ~/savemixer
root@kjsa:/home/rupert/Downloads# ls /root/
oss  savemixer  Templates  testfile
root@kjsa:/home/rupert/Downloads# /root/savemixer
Saving mixer settings to /usr/lib/oss/etc/mixer.save

AC97 Mixer (ALC655): 75 controls
control 0:
control 1: �1
SNDCTL_MIX_READ: Bad address
control 2: �11
control 3: �
Killed


Here's dmesg output:

Code: Select all

Pid: 2645, comm: savemixer Tainted: G    B D     2.6.35-23-generic #36-Ubuntu SA Series/SA Series
[74352.187459] EIP: 0060:[<016b00cf>] EFLAGS: 00010202 CPU: 0
[74352.187480] EIP is at 0x16b00cf
[74352.187499] EAX: 00000000 EBX: eeabde10 ECX: c0345805 EDX: 016e00ce
[74352.187521] ESI: 00000000 EDI: 016b00cf EBP: eeabddd0 ESP: eeabdd84
[74352.187545]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[74352.187568] Process savemixer (pid: 2645, ti=eeabc000 task=f6a0e580 task.ti=eeabc000)
[74352.187587] Stack:
[74352.187599]  f9bb6734 bfa7c3a4 00000286 00000001 f6b90360 00000001 eeabddc0 c01fd516
[74352.187646] <0> c01fe6b0 00000163 fa813000 eeabddc8 eeabddc8 c035a87d c0345805 f80a3008
[74352.187697] <0> c0345805 f80a3008 f9bb67d0 eeabdf30 f9b94253 eeabde10 00000000 00000001
[74352.187750] Call Trace:
[74352.187899]  [<f9bb6734>] ? oss_mixer_ext+0xe34/0xed0 [osscore]
[74352.187940]  [<c01fd516>] ? __vunmap+0x76/0xe0
[74352.187968]  [<c01fe6b0>] ? vmalloc+0x30/0x40
[74352.187996]  [<c035a87d>] ? _copy_from_user+0x3d/0x130
[74352.188024]  [<c0345805>] ? blk_rq_map_sg+0x1f5/0x260
[74352.188053]  [<c0345805>] ? blk_rq_map_sg+0x1f5/0x260
[74352.188056]  [<f9bb67d0>] ? oss_mixer_ioctl+0x0/0x1e0 [osscore]
[74352.188056]  [<f9b94253>] ? oss_cdev_ioctl+0x123/0x270 [osscore]
[74352.188056]  [<c0132d5e>] ? kmap_atomic_prot+0x4e/0xf0
[74352.188056]  [<c0139545>] ? __wake_up+0x45/0x60
[74352.188056]  [<c0345805>] ? blk_rq_map_sg+0x1f5/0x260
[74352.188056]  [<f9b943b4>] ? oss_cdev_unlocked_ioctl+0x14/0x20 [osscore]
[74352.188056]  [<c03dbf60>] ? n_tty_write+0x0/0x290
[74352.188056]  [<c0226a22>] ? vfs_ioctl+0x32/0xb0
[74352.188056]  [<f9b943a0>] ? oss_cdev_unlocked_ioctl+0x0/0x20 [osscore]
[74352.188056]  [<c02272b9>] ? do_vfs_ioctl+0x79/0x2d0
[74352.188056]  [<c03da3a0>] ? tty_write+0x0/0x210
[74352.188056]  [<c0227577>] ? sys_ioctl+0x67/0x80
[74352.188056]  [<c05c99f4>] ? syscall_call+0x7/0xb
[74352.188056]  [<c0345805>] ? blk_rq_map_sg+0x1f5/0x260
[74352.188056] Code:  Bad EIP value.
[74352.188056] EIP: [<016b00cf>] 0x16b00cf SS:ESP 0068:eeabdd84
[74352.188056] CR2: 00000000016b00cf
[74352.188902] ---[ end trace 5e86c82288797416 ]---


ossmix output:

Code: Select all

root@kjsa:/home/rupert/Downloads# ossmix
Selected mixer 0/�
Known controls are:
Unknown mixer extension type 24051920 (�1) (Read-only)
Unknown mixer extension type 23789779 (�11)
Unknown mixer extension type 23855313 (�) (Read-only)
Unknown mixer extension type 23986389 (�21)
Unknown mixer extension type 23855312 (�1) (Read-only)
Unknown mixer extension type 23789779 (�1)
Unknown mixer extension type 23789777 (�2)
Unknown mixer extension type 23789778 (�12111111)
�12111112 [<leftvol>:<rightvol>] (currently 32:32)
�1211111.rec ON|OFF (currently ON)
mic <monovol> (currently 0)
mic.rec ON|OFF (currently OFF)
igain [<leftvol>:<rightvol>] (currently 75:75)
aux1 [<leftvol>:<rightvol>] (currently 32:32)
aux1.rec ON|OFF (currently OFF)
rear [<leftvol>:<rightvol>] (currently 75:75)
center [<leftvol>:<rightvol>] (currently 75:75)
micboost ON|OFF (currently ON)
mixext.centervol [<leftvol>:<rightvol>] (currently 100:100)
mixext.rearvol [<leftvol>:<rightvol>] (currently 100:100)
mixext.sidevol [<leftvol>:<rightvol>] (currently 100:100)
mixext.rear2linejack ON|OFF (currently OFF)
mixext.center2micjack ON|OFF (currently OFF)
mixext.spkmode <FRONT|SPREAD> (currently FRONT)
mixext.mix-lfe2front ON|OFF (currently OFF)
mixext.mix-rear2front ON|OFF (currently OFF)
spdout.enable ON|OFF (currently OFF)
spdout.adc/dac ON|OFF (currently OFF)
spdout.pro <Consumer|Professional> (currently Consumer)
spdout.audio <AUDIO|DATA> (currently AUDIO)
spdout.copy ON|OFF (currently OFF)
spdout.pre-emph ON|OFF (currently OFF)
spdout.rate <48000|44100|32000> (currently 48000)
spdout.vbit ON|OFF (currently OFF)
spdin.enable ON|OFF (currently ON)
spdin.monitor ON|OFF (currently OFF)
spdin.pro <decimal value> (currently 0) (Read-only)
spdin.audio <decimal value> (currently 0) (Read-only)
spdin.copy <decimal value> (currently 0) (Read-only)
spdin.pre-emph <decimal value> (currently 0) (Read-only)
spdin.mode <decimal value> (currently 0) (Read-only)
spdin.category <decimal value> (currently 0) (Read-only)
spdin.genlevel <decimal value> (currently 0) (Read-only)
spdin.source <decimal value> (currently 0) (Read-only)
spdin.channel <decimal value> (currently 0) (Read-only)
spdin.rate <decimal value> (currently 44100) (Read-only)
spdin.clock <decimal value> (currently 0) (Read-only)
spdin.signal <decimal value> (currently 0) (Read-only)
spdin.vbit <decimal value> (currently 0) (Read-only)
vmix0-enable ON|OFF (currently ON)
vmix0-rate <decimal value> (currently 48000) (Read-only)
vmix0-src <High|OFF> (currently Fast)
vmix0-outvol <monovol> (currently 18.8 dB)
vmix0-invol <monovol> (currently 25.0 dB)
vmix0.pcm1 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
vmix0.pcm2 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
vmix0.pcm3 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
vmix0.pcm4 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)


[cesium]

So the mixer controls are corrupted for some reason... It's a guess, but maybe this patch will be a start:

Code: Select all

diff -r 232d0de71550 kernel/drv/oss_geode/oss_geode.c
--- a/kernel/drv/oss_geode/oss_geode.c   Tue Nov 02 23:45:15 2010 +0200
+++ b/kernel/drv/oss_geode/oss_geode.c   Thu Nov 04 07:10:12 2010 +0200
@@ -711,6 +711,7 @@
   if (devc->mixer_dev < 0)
     return 0;

+#if 0
   if (devc->chip == AMD_CS5536_ID)
     {
       /* remove controls that are backed by devices unsupported by the
@@ -719,6 +720,7 @@
   SOUND_MASK_VIDEO | SOUND_MASK_MONO | SOUND_MASK_CD | SOUND_MASK_PHONE,
   0);
     }
+#endif

   opts = ADEV_AUTOMODE | ADEV_STEREOONLY | ADEV_16BITONLY;


[Smirnoff]

Please help solve troubles CMI8738

[Edit by cesium: replied via PM]

root@niks:/# ossxmix
Segmentation fault
root@niks:/# savemixer
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
root@niks:/# ossinfo
Version info: OSS 4.2 (b 2004/201104232310) (0x00040100) OSS_HG
Hg revision: changeset: 928:a9a237ddd426, tag: tip, date: Tue Apr 19 09:31:02 2011 +0300, summary: Intel HD Audio Cougar Point added
Platform: Linux/i686 2.6.32-30-generic #59-Ubuntu SMP Tue Mar 1 21:30:21 UTC 2011 (niks)

Number of audio devices: 2
Number of audio engines: 6
Number of MIDI devices: 0
Number of mixer devices: 1


Device objects
0: osscore0 OSS core services
1: oss_cmpci0 CMedia CM8738 interrupts=10 (10)
2: oss_usb0 USB audio core services

MIDI devices (/dev/midi*)

Mixer devices
0: CMedia CMPCI (Mixer 0 of device object 1)

Audio devices
CMedia CM8738 (rev 37) /dev/oss/oss_cmpci0/pcm0 (device index 0)
CMedia CM8738 (playback only) /dev/oss/oss_cmpci0/pcm1 (device index 1)

Nodes
/dev/dsp -> /dev/oss/oss_cmpci0/pcm0
/dev/dsp_in -> /dev/oss/oss_cmpci0/pcm0
/dev/dsp_out -> /dev/oss/oss_cmpci0/pcm0
/dev/dsp_ac3 -> /dev/oss/oss_cmpci0/pcm0
/dev/dsp_mmap -> /dev/oss/oss_cmpci0/pcm0
/dev/dsp_multich -> /dev/oss/oss_cmpci0/pcm0
/dev/dsp_spdifout -> /dev/oss/oss_cmpci0/pcm0
/dev/dsp_spdifin -> /dev/oss/oss_cmpci0/pcm0
root@niks:/# ossmix
Selected mixer 0/W�>�Y�A�Z�B�W�C�X�=�^�H�^�H�]�E�Z�@�\�D�d�J�`�?�`�A�`�G�d�B�`�H�b�H�d�H�d�H�e�B�d�H�c�K
Known controls are:
FF (currently ON)
mutectl.micmute ON|OFF (currently ON)
mutectl.line1mute ON|OFF (currently ON)
jackctl.rear2line ON|OFF (currently OFF)
jackctl.cen2line ON|OFF (currently OFF)
jackctl.bass2line ON|OFF (currently OFF)
jackctl.cen2mic ON|OFF (currently OFF)
mixext.spkmode <FRONT|SPREAD> (currently SPREAD)
mixext.dualdac ON|OFF (currently OFF)
mixext.micboost ON|OFF (currently OFF)
spdif.play ON|OFF (currently OFF)
spdif.loop ON|OFF (currently OFF)
spdif.record ON|OFF (currently OFF)
spdif.imon ON|OFF (currently OFF)
spdif.polrev ON|OFF (currently ON)
spdif.copyprot ON|OFF (currently OFF)
spdif.optical ON|OFF (currently OFF)
vmix0-enable ON|OFF (currently ON)
vmix0-rate <decimal value> (currently 48000) (Read-only)
vmix0-channels <Stereo|Multich> (currently Stereo)
vmix0-src <Fast|High|OFF> (currently Fast)
vmix0-outvol <monovol> (currently 25.0 dB)
vmix0-invol <monovol> (currently 25.0 dB)
vmix0.pcm1 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
vmix0.pcm2 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
vmix0.pcm3 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
vmix0.pcm4 [<leftvol>:<rightvol>] (currently 25.0:25.0 dB)
root@niks:/# service oss restart
Stopping Open Sound System: SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
SNDCTL_MIX_READ: Bad address
Starting Open Sound System: Killed
Loading module oss_cmpci failed - ignored
root@niks:/#

Unknown mixer extension type -45417118 (\�H�_�I�]�A

[ 986.925931] ossxmix[1670]: segfault at ff339dc8 ip 0804c87d sp bfed6810 error 4 in ossxmix[8048000+d000]
[ 1080.743038] usbcore: deregistering interface driver oss_usb
[ 1080.753487] oss_cmpci 0000:00:05.0: PCI INT A disabled
[ 1081.192112] oss_cmpci 0000:00:05.0: PCI INT A -> Link[LNKB] -> GSI 10 (level, low) -> IRQ 10
[ 1081.198751] BUG: unable to handle kernel NULL pointer dereference at 00000067
[ 1081.198765] IP: [<d24b9782>] mixer_ext_create_control+0x162/0x320 [osscore]
[ 1081.198848] *pde = 00000000
[ 1081.198855] Oops: 0000 [#1] SMP
[ 1081.198861] last sysfs file: /sys/module/osscore/initstate
[ 1081.198869] Modules linked in: oss_cmpci(+) osscore nls_utf8 nls_cp437 vfat fat fbcon tileblit font bitblit nvidia(P) softcursor vga16fb ppdev vgastate via686a lp amd_k7_agp parport_pc i2c_viapro shpchp parport agpgart psmouse serio_raw 8139too usb_storage 8139cp mii pata_via [last unloaded: osscore]
[ 1081.198916]
[ 1081.198925] Pid: 1743, comm: modprobe Tainted: P (2.6.32-30-generic #59-Ubuntu) System Name
[ 1081.198933] EIP: 0060:[<d24b9782>] EFLAGS: 00210287 CPU: 0
[ 1081.198957] EIP is at mixer_ext_create_control+0x162/0x320 [osscore]
[ 1081.198963] EAX: ce2f5d6c EBX: ffffffff ECX: c8ca9a0e EDX: d13468de
[ 1081.198970] ESI: ffffffff EDI: ffffffff EBP: c8ca9b00 ESP: c8ca9aec
[ 1081.198976] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 1081.198983] Process modprobe (pid: 1743, ti=c8ca8000 task=c8c83300 task.ti=c8ca8000)
[ 1081.198988] Stack:
[ 1081.198992] 00000002 ffffffff 0000000a ffffffff ffffffff 00000004 37356447 c8ca9bb8
[ 1081.199005] <0> ffffffff d2502e57 00000010 00000000 d1346850 000031d8 0000003e ffffffff
[ 1081.199019] <0> d1306008 00000003 00000000 d1306008 00000003 00000000 c8ca9c54 d24bf7f5
[ 1081.199034] Call Trace:
[ 1081.199067] [<d24bf7f5>] ? vmix_create_client+0x5f5/0x690 [osscore]
[ 1081.199092] [<d24bd7d0>] ? vmix_outportc_vol+0x0/0xa0 [osscore]
[ 1081.199121] [<d24c0874>] ? create_duplex_controls+0xd4/0x100 [osscore]
[ 1081.199146] [<d24bd6f0>] ? vmix_invol+0x0/0xe0 [osscore]
[ 1081.199172] [<d2494605>] ? oss_mutex_init+0x15/0x50 [osscore]
[ 1081.199197] [<d24bffca>] ? vmix_attach_audiodev+0x64a/0x8d0 [osscore]
[ 1081.199216] [<c0353ca2>] ? string+0x32/0xe0
[ 1081.199239] [<d0e39b26>] ? oss_cmpci_attach+0x656/0x770 [oss_cmpci]
[ 1081.199264] [<c03642dd>] ? __pci_enable_device_flags+0x5d/0x70
[ 1081.199275] [<d0e3a935>] ? osspci_probe+0xc5/0x106 [oss_cmpci]
[ 1081.199287] [<c0366203>] ? local_pci_probe+0x13/0x20
[ 1081.199296] [<c0367008>] ? pci_device_probe+0x68/0x90
[ 1081.199306] [<c03e967d>] ? really_probe+0x4d/0x140
[ 1081.199323] [<c03eff8e>] ? pm_runtime_barrier+0x4e/0xc0
[ 1081.199331] [<c03e97ac>] ? driver_probe_device+0x3c/0x60
[ 1081.199339] [<c03e9851>] ? __driver_attach+0x81/0x90
[ 1081.199347] [<c03e8c93>] ? bus_for_each_dev+0x53/0x80
[ 1081.199355] [<c03e954e>] ? driver_attach+0x1e/0x20
[ 1081.199363] [<c03e97d0>] ? __driver_attach+0x0/0x90
[ 1081.199370] [<c03e8f15>] ? bus_add_driver+0xd5/0x280
[ 1081.199379] [<c0366f40>] ? pci_device_remove+0x0/0x40
[ 1081.199387] [<c03e9b4a>] ? driver_register+0x6a/0x130
[ 1081.199395] [<c0367245>] ? __pci_register_driver+0x45/0xb0
[ 1081.199405] [<d0e3e017>] ? pcidrv_init+0x17/0x29 [oss_cmpci]
[ 1081.199415] [<c0101131>] ? do_one_initcall+0x31/0x190
[ 1081.199425] [<d0e3e000>] ? pcidrv_init+0x0/0x29 [oss_cmpci]
[ 1081.199443] [<c0182f50>] ? sys_init_module+0xb0/0x210
[ 1081.199453] [<c01033ec>] ? syscall_call+0x7/0xb
[ 1081.199458] Code: f5 99 fd ff 83 7d 0c 14 77 16 0f b6 4d 0c b8 01 00 00 00 d3 e0 a9 b0 87 1f 00 0f 85 e6 00 00 00 8b 45 d4 03 05 24 e8 50 d2 8b 18 <8b> 4b 68 85 c9 0f 8e ab 00 00 00 39 ce 0f 8d a3 00 00 00 85 f6
[ 1081.199528] EIP: [<d24b9782>] mixer_ext_create_control+0x162/0x320 [osscore] SS:ESP 0068:c8ca9aec
[ 1081.199556] CR2: 0000000000000067
[ 1081.199564] ---[ end trace d617dcb67e8a6848 ]---
[ 1081.282592] usbcore: registered new interface driver oss_usb