Hi,
i have compiled alsa-driver 1.0.20 on a server class machine (no real
sound hardware present), however when i load snd_dummy, alsa start's
throwing following messages.
[256550.690112] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/../alsa-kernel/core/pcm_lib.c:167:
BUG: stream = 0, pos = 0x1d00, buffer size = 0x1000, period size = 0x800
[256555.699355] printk: 1644 messages suppressed.
[256555.699360] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/../alsa-kernel/core/pcm_lib.c:167:
BUG: stream = 0, pos = 0x1080, buffer size = 0x1000, period size = 0x800
[256560.680839] printk: 1645 messages suppressed.
[256560.680844] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/../alsa-kernel/core/pcm_lib.c:167:
BUG: stream = 0, pos = 0x1f00, buffer size = 0x1000, period size = 0x800
[256576.868075] printk: 1523 messages suppressed.
[256576.868082] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/../alsa-kernel/core/pcm_lib.c:167:
BUG: stream = 0, pos = 0x1040, buffer size = 0x1000, period size = 0x800
/var/log/syslog:
Sep 7 14:23:42 nghw2131 kernel: [253603.545003] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/../alsa-kernel/core/pcm_lib.c:167:
BUG: stream = 0, pos = 0x1040, buffer size = 0x1000, period size = 0x800
Sep 7 14:23:43 nghw2131 kernel: [253604.436143] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/../alsa-kernel/core/pcm_lib.c:1635:
playback write error (DMA or IRQ trouble?)
Sep 7 14:23:47 nghw2131 kernel: [253608.532338] printk: 38 messages
suppressed.
Sep 7 14:23:47 nghw2131 kernel: [253608.532341] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/../alsa-kernel/core/pcm_lib.c:167:
BUG: stream = 0, pos = 0x1100, buffer size = 0x1000, period size = 0x800
Sep 7 14:23:52 nghw2131 kernel: [253613.649612] printk: 39 messages
suppressed.
Sep 7 14:23:52 nghw2131 kernel: [253613.649615] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/../alsa-kernel/core/pcm_lib.c:167:
BUG: stream = 0, pos = 0x1100, buffer size = 0x1000, period size = 0x800
Sep 7 14:23:53 nghw2131 kernel: [253614.436698] ALSA
/usr/local/src/alsa-driver-1.0.20/acore/pcm_native.c:1488: playback
drain error (DMA or IRQ trouble?)
Sep 7 14:24:11 nghw2131 karaka slave.py[11473]: tx:
here are some system (os and hardware ) iformation:
#lsb_release -a
Distributor ID: Ubuntu
Description: Ubuntu 8.04.3 LTS
Release: 8.04
Codename: hardy
#uname -a : Linux nghw2131 2.6.24-24-server #1 SMP Tue Aug 18 17:46:20
UTC 2009 i686 GNU/Linux
#cat /proc/interupts
CPU0 CPU1 CPU2 CPU3
0: 122 0 0 0 XT-PIC-XT timer
1: 0 0 0 0 XT-PIC-XT i8042
2: 0 0 0 0 XT-PIC-XT cascade
5: 0 0 0 0 XT-PIC-XT
ehci_hcd:usb1, uhci_hcd:usb2, uhci_hcd:usb4
8: 62 0 0 0 XT-PIC-XT rtc
10: 8623 0 0 0 XT-PIC-XT aacraid
11: 0 0 0 0 XT-PIC-XT
uhci_hcd:usb3
14: 100 0 0 0 XT-PIC-XT libata
15: 0 0 0 0 XT-PIC-XT libata
214: 8218 8218 8218 8218 PCI-MSI-edge eth0
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 93658 79527 100092 101418 Local timer interrupts
RES: 613 995 956 999 Rescheduling interrupts
CAL: 69 105 132 126 function call interrupts
TLB: 459 444 394 382 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
SPU: 0 0 0 0 Spurious interrupts
ERR: 0
MIS: 0
I have also tried disabling acpi and apic but no way. i am wondering if
someone else is also facing such issue?
Regards,
-mustafa
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