thanks for the quick reply, however it's not just popping up in syslog but also causing NO-SOUND :( or very very choppy broken sound (almost nothing ) and btw what do you mean by alsa-debug activated? are you talking about --with-debug while compiling alsa drivers? Regards, -mustafa Giovanni Maruzzelli wrote: > It is probably a bug that is evidenced because you compiled with > alsa-debug active. Turn off alsa debug at kernel compilation level and > you will no more notice it :-). > > It also sprung up for me when I activated alsa-debug. > > Please, if you need it, let's continue this discussion on the > alsa-devl mailing list. > > Ciao for now, > > -giovanni > > Sincerely, > > Giovanni Maruzzelli > Cell : +39-347-2665618 > > > > > On Mon, Sep 7, 2009 at 6:42 PM, Ghulam Mustafa<ghulam.mustafa@xxxxxxxxxx> wrote: > >> 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 >> >> ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
