Date: Fri, 06 Dec 2002 00:32:11 +0200 From: Diomidis Spinellis <dds@aueb.gr> To: freebsd-questions@FreeBSD.ORG Subject: Sound driver hangs when writing to the system console Message-ID: <3DEFD3EB.F7773AB4@aueb.gr>
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For a couple of months I've been trying to crack a puzzling problem. After upgrading from 4.1 to 4.6 (and now to 4.7) my on-board sound card would pause or die after playing for approximately 20 minutes with a message: pcm0:play:0: play interrupt timeout, channel dead I have now managed to isolate the timing dependency: the problem comes from writing to the system console (which a cron job apparently did every 20 minutes). So a command like: cat /usr/share/dict/words >/dev/console will immediately break the sound driver with the same message. I have dissabled PnP from the BIOS and locked the card to two different IRQs. I have also dissabled the VGA IRQ and even removed entirely the VGA card (the box works as an appliance), but none of these measures helped. The sound hardware is an on-board WSS-compatible CS4231-based device on an Intel Triton motherboard (Pentium 150MHz) running the latest BIOS update. The box has no local storage booting remotely from another FreeBSD box through Etherboot. I am attaching the output of uname, dmesg, and pciconf. Any ideas or hints on what try would be really appreciated. Diomidis - http://www.dmst.aueb.gr/dds office# uname -a FreeBSD office 4.7-RELEASE-p2 FreeBSD 4.7-RELEASE-p2 #12: Thu Dec 5 23:18:43 EET 2002 dds@spiti:/vol/obj/vol/src/sys/OFFICE i386 office# dmesg Copyright (c) 1992-2002 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD 4.7-RELEASE-p2 #12: Thu Dec 5 23:18:43 EET 2002 dds@spiti:/vol/obj/vol/src/sys/OFFICE Timecounter "i8254" frequency 1193182 Hz CPU: Pentium/P54C (149.69-MHz 586-class CPU) Origin = "GenuineIntel" Id = 0x52c Stepping = 12 Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8> real memory = 33554432 (32768K bytes) avail memory = 29765632 (29068K bytes) Intel Pentium detected, installing workaround for F00F bug md0: Malloc disk npx0: <math processor> on motherboard npx0: INT 16 interface pcib0: <Host to PCI bridge> on motherboard pci0: <PCI bus> on pcib0 isab0: <Intel 82371SB PCI to ISA bridge> at device 7.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel PIIX3 ATA controller> port 0xffa0-0xffaf at device 7.1 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ata1: at 0x170 irq 15 on atapci0 orm0: <Option ROMs> at iomem 0xc8000-0xcbfff,0xcc000-0xcffff,0xea000-0xebfff on isa0 fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0 fdc0: FIFO enabled, 8 bytes threshold fd0: <1440-KB 3.5" drive> on fdc0 drive 0 atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0 atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0 kbd0 at atkbd0 sio0 at port 0x3f8-0x3ff irq 4 on isa0 sio0: type 16550A sio1 at port 0x2f8-0x2ff irq 3 on isa0 sio1: type 16550A ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0 ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode plip0: <PLIP network interface> on ppbus0 lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 ed0 at port 0x240-0x25f iomem 0xd8000 irq 9 on isa0 ed0: address 00:00:e8:32:81:e8, type NE2000 (16 bit) pcm0: <CS4231> at port 0x530-0x537,0x538-0x539,0xf8c-0xf94,0xe0e irq 11 drq 0 flags 0xa111 on isa0 bootpc_init: wired to interface 'ed0' Sending DHCP Discover packet from interface ed0 (00:00:e8:32:81:e8) Received DHCP Offer packet on ed0 from 192.168.136.1 (accepted) (no root path) Sending DHCP Request packet from interface ed0 (00:00:e8:32:81:e8) Received DHCP Ack packet on ed0 from 192.168.136.1 (accepted) (got root path) ed0 at 192.168.136.2 server 192.168.136.1 boot file kernel subnet mask 255.255.255.0 rootfs 192.168.136.1:/ Adjusted interface ed0 Mounting root from nfs: NFS ROOT: 192.168.136.1:/ pcm0:play:0: play interrupt timeout, channel dead office# pciconf -lv chip0@pci0:0:0: class=0x060000 card=0x00000000 chip=0x12508086 rev=0x03 hdr=0x00 vendor = 'Intel Corporation' device = '82439HX System Controller (TXC)' class = bridge subclass = HOST-PCI isab0@pci0:7:0: class=0x060100 card=0x00000000 chip=0x70008086 rev=0x01 hdr=0x00 vendor = 'Intel Corporation' device = '82371SB PIIX3 PCI-to-ISA Bridge (Triton II)' class = bridge subclass = PCI-ISA atapci0@pci0:7:1: class=0x010180 card=0x00000000 chip=0x70108086 rev=0x00 hdr=0x00 vendor = 'Intel Corporation' device = '82371SB PIIX3 IDE Interface (Triton II)' class = mass storage subclass = ATA To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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