Re: [Alsa-user] 1.0.0pre1 - alsactl still segfaults when invocated from init

[wwp <sub...@fr...>]

Hi ALSA folks,


the alsactl segfault I've previously reported is still happening with
alsa-driver 1.0.0pre2 + alsa-* 1.0.0pre1 (installed from the sources).

- `alsactl store` or  `alsactl restore` from the init process are segfaulting,
I can also see an oops in /var/log/message.

- when launching manually alsactl store or restore from userspace,
I don't get the segfault.

- even if crashing at startup, alsactl successfully restores the sound
settings

- the crash of alsactl at shutdown prevents it from saving the .state file
So I've saved it from normal userspace and next boot restored the
sound state :-)


I'm using a SuSE 8.1-based system (kernel 2.4.19, modutils 2.4.26), w/ many
upgrades from the sources. I used to upgrade alsa driver and other stuff from
0.9.3, and the problem only appeared since 0.9.7, IIRC.


Here are the excerpts from /var/log/message:

===== Starting up the machine =====
kernel: ALSA ../../alsa-kernel/pci/ac97/ac97_codec.c:1853: MC'97 1 converters and GPIO not ready (0xff00)
kernel: intel8x0: clocking to 48000
kernel: vmnet1: no IPv6 routers present
kernel: Unable to handle kernel paging request at virtual address 80000008
kernel:  printing eip:
kernel: c5ae8071
kernel: *pde = 00000000
kernel: Oops: 0000 2.4.19-4GB #1 Fri Sep 13 13:14:56 UTC 2002
kernel: CPU:	0
kernel: EIP:	0010:[pcmcia_core:proc_pccard+54911681/72006415]	Tainted: PF
kernel: EIP:	0010:[<c5ae8071>]	 Tainted: PF
kernel: EFLAGS: 00010286
kernel: eax: 80000000	ebx: 00000001	ecx: 00000001	edx: c5a18a40
kernel: esi: 00000020	edi: 00000000	ebp: c23ad9c0	esp: c5afff24
kernel: ds: 0018   es: 0018   ss: 0018
kernel: Process alsactl (pid: 1144, stackpage=c5aff000)
kernel: Stack: c5ae8257 00000001 00000000 00000000 c23ad9c0 c5a18a40 dffd3360 c01440c4 
kernel: 	   c5a18a40 c23ad9c0 c23ad9c0 c5a18a40 ffffffe9 c0142bf6 c5a18a40 c23ad9c0 
kernel: 	   00000000 c1ba5000 00000001 bffffbf8 c0142a60 c5a19960 dffd3360 00000000 
kernel: Call Trace:    [pcmcia_core:proc_pccard+54912167/72005929] [chrdev_open+68/80] [dentry_open+390/496] [filp_open+80/96] [sys_open+59/128]
kernel: Call Trace:    [<c5ae8257>] [<c01440c4>] [<c0142bf6>] [<c0142a60>] [<c0142dfb>]
kernel:   [system_call+51/64]
kernel:   [<c0108e63>]
kernel: Modules: [(snd:<c5ae8060>:<c5aef304>)]
kernel: Code: 8b 40 08 85 c0 74 1b b8 01 00 00 00 d3 e0 85 05 84 ef ae c5 

===== Shutting down the machine =====
kernel: Unable to handle kernel paging request at virtual address 80000008
kernel:  printing eip:
kernel: c5ae8071
kernel: *pde = 00000000
kernel: Oops: 0000 2.4.19-4GB #1 Fri Sep 13 13:14:56 UTC 2002
kernel: CPU:	0
kernel: EIP:	0010:[pcmcia_core:proc_pccard+55435969/72006415]	Tainted: PF
kernel: EIP:	0010:[<c5ae8071>]	 Tainted: PF
kernel: EFLAGS: 00010286
kernel: eax: 80000000	ebx: 00000001	ecx: 00000001	edx: cb2b4d60
kernel: esi: 00000020	edi: 00000000	ebp: c239d860	esp: c93d9f24
kernel: ds: 0018   es: 0018   ss: 0018
kernel: Process alsactl (pid: 1766, stackpage=c93d9000)
kernel: Stack: c5ae8257 00000001 00000000 00000000 c239d860 cb2b4d60 dffd3360 c01440c4 
kernel: 	   cb2b4d60 c239d860 c239d860 cb2b4d60 ffffffe9 c0142bf6 cb2b4d60 c239d860 
kernel: 	   00000000 c9326000 00000001 bffffbe8 c0142a60 cb23e440 dffd3360 00000000 
kernel: Call Trace:    [pcmcia_core:proc_pccard+55436455/72005929] [chrdev_open+68/80] [dentry_open+390/496] [filp_open+80/96] [sys_open+59/128]
kernel: Call Trace:    [<c5ae8257>] [<c01440c4>] [<c0142bf6>] [<c0142a60>] [<c0142dfb>]
kernel:   [system_call+51/64]
kernel:   [<c0108e63>]
kernel: Modules: [(snd:<c5ae8060>:<c5aef304>)]
kernel: Code: 8b 40 08 85 c0 74 1b b8 01 00 00 00 d3 e0 85 05 84 ef ae c5 

And the output from the startup process:
Restoring the previous sound setting/etc/init.d/rc5.d/S13alsasound: line 250:  1144 Segmentation fault     -F -f  restore >/dev/null 2>&1


`lspci -vv` says:
00:1f.5 Multimedia audio controller: Intel Corp. 82801CA/CAM AC'97 Audio (rev 02)
        Subsystem: Cirrus Logic: Unknown device 5959
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin B routed to IRQ 11
        Region 0: I/O ports at d800 [size=256]
        Region 1: I/O ports at dc80 [size=64]

What info should I provide? Does anyone has a clue where's the problem is?


TIA,

-- 
wwp