I use kernel 2.6.7 with ALSA sound (snd_intel8x0). It works fine right after booting, but after using the computer for an hour or so then sound stops working. Stopping and starting /etc/init.d/alsasound does not fix the problem. The only "unusual" thing we do with our sound system is the modem, where we use the Linuxant commercial driver. However, the problem does not occur in connection with using the modem, although I cannot say for sure if it occurs in cases where the modem has not been used earlier. The problem appeared between kernel 2.6.5 and 2.6.6 but is also present in 2.6.7. Of course many other things have been upgraded as well. The hardware is a Dell laptop (Inspiron 5150). Reproducible: Sometimes Steps to Reproduce: 1. Boot the laptop 2. Use it for an hour for typical office work. 3. Try to do anything requireing sound. baula root # scanpci pci bus 0x0000 cardnum 0x00 function 0x00: vendor 0x8086 device 0x3580 Intel Corp. 852GM/852GME/855GM/855GME Chipset Host-Hub Bridge pci bus 0x0000 cardnum 0x00 function 0x01: vendor 0x8086 device 0x3584 Intel Corp. Device unknown pci bus 0x0000 cardnum 0x00 function 0x03: vendor 0x8086 device 0x3585 Intel Corp. Device unknown pci bus 0x0000 cardnum 0x01 function 0x00: vendor 0x8086 device 0x3581 Intel Corp. Device unknown pci bus 0x0000 cardnum 0x1d function 0x00: vendor 0x8086 device 0x24c2 Intel Corp. 82801DB USB (Hub #1) pci bus 0x0000 cardnum 0x1d function 0x01: vendor 0x8086 device 0x24c4 Intel Corp. 82801DB USB (Hub #2) pci bus 0x0000 cardnum 0x1d function 0x02: vendor 0x8086 device 0x24c7 Intel Corp. 82801DB USB (Hub #3) pci bus 0x0000 cardnum 0x1d function 0x07: vendor 0x8086 device 0x24cd Intel Corp. 82801DB USB EHCI Controller pci bus 0x0000 cardnum 0x1e function 0x00: vendor 0x8086 device 0x2448 Intel Corp. 82801BAM/CAM PCI Bridge pci bus 0x0000 cardnum 0x1f function 0x00: vendor 0x8086 device 0x24cc Intel Corp. Device unknown pci bus 0x0000 cardnum 0x1f function 0x01: vendor 0x8086 device 0x24ca Intel Corp. Device unknown pci bus 0x0000 cardnum 0x1f function 0x05: vendor 0x8086 device 0x24c5 Intel Corp. 82801DB AC'97 Audio pci bus 0x0000 cardnum 0x1f function 0x06: vendor 0x8086 device 0x24c6 Intel Corp. 82801DB AC'97 Modem pci bus 0x0001 cardnum 0x00 function 0x00: vendor 0x10de device 0x0324 nVidia Corporation Device unknown pci bus 0x0002 cardnum 0x01 function 0x00: vendor 0x14e4 device 0x4401 Broadcom Corporation BCM4401 100Base-T pci bus 0x0002 cardnum 0x04 function 0x00: vendor 0x104c device 0xac44 Texas Instruments Device unknown pci bus 0x0002 cardnum 0x04 function 0x01: vendor 0x104c device 0x8029 Texas Instruments Device unknown baula root # emerge info Portage 2.0.50-r9 (default-x86-1.4, gcc-3.3.3, glibc-2.3.3.20040420-r0, 2.6.7) ================================================================= System uname: 2.6.7 i686 Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz Gentoo Base System version 1.4.16 Autoconf: sys-devel/autoconf-2.59-r3 Automake: sys-devel/automake-1.8.3 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer -fprefetch-loop-arrays -falign-functions=4" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.1/share/config /usr/kde/3.2/share/config /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer -fprefetch-loop-arrays -falign-functions=4" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="http://trumpetti.atm.tut.fi/gentoo/ ftp://trumpetti.atm.tut.fi/gentoo/ ftp://ftp.rhnet.is/pub/gentoo/ ftp://gd.tuwien.ac.at/opsys/linux/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X Xaw3d aalib acpi alsa arts avi berkdb cdr crypt cups dga directfb doc dvd emacs encode esd foomaticdb gdbm gif gpm gtk gtk2 imap imlib java jpeg kde libg++ libwww mad maildir mbox mikmod motif mozilla mpeg mule ncurses nls noreiserfs oggvorbis opengl oss pam pcmcia pdflib perl png pnp ppds python qt quicktime readline sdl slang spell sse ssl svga tcltk tcpd tetex tiff truetype trusted usb wxwindows x86 xml2 xmms xv zlib"
Created attachment 36410 [details] The .config file for my kernel Attached the config file of my kernel.
Since you're experiencing this on kernel.org sources, there's not much we can do about this. Can you please file a bug at http://bugme.osdl.org? Note, the upstream kernel developers may not be able to help you since I'd assume the Linuxant commercial drivers would taint the kernel map. I'd recommend you do some further testing to see if you get the issue without the driver as well.
