Long description:
When trying to capture audio/video from my bttv card (see lspci output
below), my system's reaction ranges from hard freezes to instant reboots to
segfaults - the latter variant enabled me to capture a kernel oops. I'm
using avicap from avifile project, with XviD capture codec. Video capture
works flawlessly. When I enable audio capture in addition (48 kHz, 16bit,
Mono) is when the problem starts (not after some time, but at the moment I
start the capture process). I do not have many ideas on why
smp_apic_timer_interrupt is the problem, since this is a uniprocessor
system.
Suggestions?
-Malte #8-)
Keywords: audio, via, ac97, capture, smp_apic_timer
Kernel version: 2.4.18-k7
Oops output (decoded):
--cut (captured before system was rebooted, so should be accurate)--
ksymoops 2.4.6 on i686 2.4.18-k7. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.18-k7/ (default)
-m /boot/System.map-2.4.18-k7 (default)
Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.
Warning (expand_objects): object /lib/modules/2.4.18-k7/kernel/drivers/ide/ide-disk.o for module ide-disk has changed since load
Warning (expand_objects): object /lib/modules/2.4.18-k7/kernel/drivers/ide/ide-probe-mod.o for module ide-probe-mod has changed since load
Warning (expand_objects): object /lib/modules/2.4.18-k7/kernel/drivers/ide/ide-mod.o for module ide-mod has changed since load
Warning (expand_objects): object /lib/modules/2.4.18-k7/kernel/fs/reiserfs/reiserfs.o for module reiserfs has changed since load
Unable to handle kernel paging request at virtual address ffffe0b0
c0111f6b
*pde = 00001063
Oops: 0002
CPU: 0
EIP: 0010:[<c0111f6b>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00210002
eax: c26bdfc4 ebx: 48ec5ae8 ecx: bf3ff80c edx: 00000018
esi: 0000042d edi: 00000038 ebp: 48ec1740 esp: c26bdfb8
ds: 0018 es: 0018 ss: 0018
Process avicap (pid: 1261, stackpage=c26bd000)
Stack: 48ec5ae8 c010abfd c26bdfc4 48ec5ae8 bf3ff80c 0000042d 0000042d
00000038
48ec1740 0000085a 0000002b 0000002b ffffffef 48e6aa2e 00000023
00200206
bf3ff7c4 0000002b
Call Trace: [<c010abfd>]
Code: c7 05 b0 e0 ff ff 00 00 00 00 ff 05 84 53 25 c0 31 d2 f6 40
>>EIP; c0111f6b <smp_apic_timer_interrupt+b/d0> <=====
>>eax; c26bdfc4 <_end+243c618/1058b6b4>
>>esp; c26bdfb8 <_end+243c60c/1058b6b4>
Trace; c010abfd <call_apic_timer_interrupt+5/10>
Code; c0111f6b <smp_apic_timer_interrupt+b/d0>
00000000 <_EIP>:
Code; c0111f6b <smp_apic_timer_interrupt+b/d0> <=====
0: c7 05 b0 e0 ff ff 00 movl $0x0,0xffffe0b0 <=====
Code; c0111f72 <smp_apic_timer_interrupt+12/d0>
7: 00 00 00
Code; c0111f75 <smp_apic_timer_interrupt+15/d0>
a: ff 05 84 53 25 c0 incl 0xc0255384
Code; c0111f7b <smp_apic_timer_interrupt+1b/d0>
10: 31 d2 xor %edx,%edx
Code; c0111f7d <smp_apic_timer_interrupt+1d/d0>
12: f6 40 00 00 testb $0x0,0x0(%eax)
5 warnings issued. Results may not be reliable.
Example program: is avicap from avifile project
Environment: on demand
Software: Avifile CVS-020816-14:06-2.95.4. Base system is Debian woody, with
some elements from testing and sid (e.g. avifile). The kernel is the Debian
standard kernel 2.4.18-k7 without any modification from me.
Further information (as detailed in BUG-REPORTING, but missing
/proc/scsi/scsi information because it's likely irrelevant):
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 3
model name : AMD Duron(tm) Processor
stepping : 1
cpu MHz : 801.442
cache size : 64 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow
bogomips : 1599.07
parport_pc 22280 1 (autoclean)
lp 6496 0 (autoclean)
parport 23360 1 (autoclean) [parport_pc lp]
nfsd 66688 8 (autoclean)
lockd 48288 1 (autoclean) [nfsd]
sunrpc 59732 1 (autoclean) [nfsd lockd]
ext3 57248 2 (autoclean)
jbd 35640 2 (autoclean) [ext3]
ext2 30848 1 (autoclean)
ide-cd 26720 0 (autoclean)
cdrom 29216 0 (autoclean) [ide-cd]
agpgart 30688 0 (unused)
apm 9276 2
via82cxxx_audio 18432 1
uart401 6176 0 [via82cxxx_audio]
ac97_codec 9696 0 [via82cxxx_audio]
sound 54540 0 [via82cxxx_audio uart401]
soundcore 3684 4 [via82cxxx_audio sound]
ac97 3024 0 (unused)
tuner 8196 1 (autoclean)
tvaudio 9856 1 (autoclean)
msp3400 14160 1 (autoclean)
bttv 60608 1
i2c-algo-bit 7148 1 [bttv]
i2c-core 12992 0 [tuner tvaudio msp3400 bttv i2c-algo-bit]
videodev 4704 4 [bttv]
ne2k-pci 5056 1
8390 6016 0 [ne2k-pci]
rtc 5592 0 (autoclean)
unix 13636 104 (autoclean)
ide-disk 6816 6 (autoclean)
ide-probe-mod 8096 0 (autoclean)
ide-mod 131404 6 (autoclean) [ide-cd ide-disk ide-probe-mod]
reiserfs 154816 2 (autoclean)
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(set)
0376-0376 : ide1
0378-037a : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(set)
0cf8-0cff : PCI conf1
5000-500f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
6000-607f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
c000-c00f : VIA Technologies, Inc. Bus Master IDE
c000-c007 : ide0
c008-c00f : ide1
cc00-ccff : VIA Technologies, Inc. AC97 Audio Controller
cc00-ccff : via82cxxx_audio
d000-d003 : VIA Technologies, Inc. AC97 Audio Controller
d000-d003 : via82cxxx_audio
d400-d403 : VIA Technologies, Inc. AC97 Audio Controller
d400-d403 : via82cxxx_audio
dc00-dc1f : Realtek Semiconductor Co., Ltd. RTL-8029(AS)
dc00-dc1f : ne2k-pci
e000-e0ff : Realtek Semiconductor Co., Ltd. RTL-8139
e400-e4ff : ATI Technologies Inc 3D Rage LT Pro
[Here, cat /proc/iomem >> /tmp/bug ended with a segfault!]
00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03)
Subsystem: Elitegroup Computer Systems: Unknown device 0987
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: 32
Region 0: Memory at d0000000 (32-bit, prefetchable) [size=64M]
Capabilities: <available only to root>
00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (prog-if 00 [Normal decode])
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
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: fff00000-000fffff
Prefetchable memory behind bridge: fff00000-000fffff
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
Capabilities: <available only to root>
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40)
Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge
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
Capabilities: <available only to root>
00:07.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc. Bus Master IDE
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: 32
Region 4: I/O ports at c000 [size=16]
Capabilities: <available only to root>
00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
Subsystem: Elitegroup Computer Systems: Unknown device 0987
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-
Interrupt: pin ? routed to IRQ 11
Capabilities: <available only to root>
00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97 Audio Controller (rev 50)
Subsystem: Elitegroup Computer Systems: Unknown device 0987
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-
Interrupt: pin C routed to IRQ 5
Region 0: I/O ports at cc00 [size=256]
Region 1: I/O ports at d000 [size=4]
Region 2: I/O ports at d400 [size=4]
Capabilities: <available only to root>
00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS)
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-
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at dc00 [size=32]
Expansion ROM at <unassigned> [disabled] [size=32K]
00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
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: 32 (8000ns min, 16000ns max)
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at e000 [size=256]
Region 1: Memory at d6000000 (32-bit, non-prefetchable) [size=256]
Capabilities: <available only to root>
00:0b.0 VGA compatible controller: ATI Technologies Inc 3D Rage LT Pro (rev dc) (prog-if 00 [VGA])
Subsystem: ATI Technologies Inc Rage LT Pro
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: 32 (2000ns min), cache line size 08
Interrupt: pin A routed to IRQ 5
Region 0: Memory at d5000000 (32-bit, non-prefetchable) [size=16M]
Region 1: I/O ports at e400 [size=256]
Region 2: Memory at d6001000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: <available only to root>
00:0c.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02)
Subsystem: Hauppauge computer works Inc. WinTV/GO
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: 32 (4000ns min, 10000ns max)
Interrupt: pin A routed to IRQ 9
Region 0: Memory at d6002000 (32-bit, prefetchable) [size=4K]
00:0c.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02)
Subsystem: Hauppauge computer works Inc. WinTV/GO
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: 32 (1000ns min, 63750ns max)
Interrupt: pin A routed to IRQ 9
Region 0: Memory at d6003000 (32-bit, prefetchable) [size=4K]
Hi,
On Sat, Sep 28, 2002 at 08:46:00AM +0100, [email protected] wrote:
> > 00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97 Audio Controller (rev 50)
> > Interrupt: pin C routed to IRQ 5
> >
> > 00:0b.0 VGA compatible controller: ATI Technologies Inc 3D Rage LT Pro (rev dc) (prog-if 00 [VGA])
> > Interrupt: pin A routed to IRQ 5
>
> These two devices share IRQ 5, maybe that is the problem.
No, I tried with all devices on their own interrupt, still gives the same
Oops. Good idea though, but I guess this is one of the rare cases the PCI
spec interrupt sharing actually worked...
-Malte #8-)
BTW: you luckily assumed that anyway, but since I forgot to mention that
in my first mail: please Cc: me since I'm not subscribed to LKML currently.
On Sat, 28 Sep 2002 02:56:11 +0200, Malte Cornils wrote:
>Long description:
>When trying to capture audio/video from my bttv card (see lspci output
>below), my system's reaction ranges from hard freezes to instant reboots to
>segfaults - the latter variant enabled me to capture a kernel oops. I'm
>using avicap from avifile project, with XviD capture codec. Video capture
>works flawlessly. When I enable audio capture in addition (48 kHz, 16bit,
>Mono) is when the problem starts (not after some time, but at the moment I
>start the capture process). I do not have many ideas on why
>smp_apic_timer_interrupt is the problem, since this is a uniprocessor
>system.
smp_apic_timer_interrupt is also used in UP local APIC kernels.
You're either running an SMP kernel on a UP box, or a local APIC
enabled kernel.
>Unable to handle kernel paging request at virtual address ffffe0b0
>c0111f6b
>*pde = 00001063
>Oops: 0002
>...
>Code; c0111f6b <smp_apic_timer_interrupt+b/d0>
>00000000 <_EIP>:
>Code; c0111f6b <smp_apic_timer_interrupt+b/d0> <=====
> 0: c7 05 b0 e0 ff ff 00 movl $0x0,0xffffe0b0 <=====
>Code; c0111f72 <smp_apic_timer_interrupt+12/d0>
> 7: 00 00 00
>Code; c0111f75 <smp_apic_timer_interrupt+15/d0>
> a: ff 05 84 53 25 c0 incl 0xc0255384
>Code; c0111f7b <smp_apic_timer_interrupt+1b/d0>
> 10: 31 d2 xor %edx,%edx
>Code; c0111f7d <smp_apic_timer_interrupt+1d/d0>
> 12: f6 40 00 00 testb $0x0,0x0(%eax)
You got a page fault in ack_APIC_irq(). This should never happen.
Hello,
On Sun, Sep 29, 2002 at 01:28:53PM +0200, Mikael Pettersson wrote:
> smp_apic_timer_interrupt is also used in UP local APIC kernels.
> You're either running an SMP kernel on a UP box, or a local APIC
> enabled kernel.
CONFIG_SMP is not set, CONFIG_X86_LOCAL_APIC is enabled.
> You got a page fault in ack_APIC_irq(). This should never happen.
That's quite cool :-) How can I prevent this from happening then? Hmm...
BTW, I got the same error on 2.4.19, with ALSA it works fine.
-Malte #8-)