Bug 17919
| Summary: | sound has problems with DMA | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Michal Jaegermann <michal> |
| Component: | kernel | Assignee: | Michael K. Johnson <johnsonm> |
| Status: | CLOSED WONTFIX | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.3 | CC: | alan |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | alpha | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2000-10-02 21:20:17 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Reassigning to kernel. Alan, is the trident driver doing anything obviously wrong in how it does DMA, or does this require the new 2.4 PCI mapping stuff? Per message from rth on linux-kernel, this is pretty much unfixable for this card. |
This is, in reality, likely a kernel problem but it manifests itself when one tries to run 'sndconfig' (and not only). An attempt to configure and play sound ends up with the following failure: trident 4DWave/SiS 7018 PCI Audio, version 0.14.5, 18:39:34 Sep 14 2000 trident: Trident 4DWave DX found at IO 0x9800, IRQ 27 ac97_codec: AC97 Audio codec, vendor id1: 0x4352, id2: 0x5903 (Cirrus Logic CS4297) trident: DMA buffer beyond 1 GB; bus address = 0x4d1c8000, size = 32768 trident: DMA buffer beyond 1 GB; bus address = 0x4d1c8000, size = 32768 trident: DMA buffer beyond 1 GB; bus address = 0x4d1c8000, size = 32768 trident: DMA buffer beyond 1 GB; bus address = 0x4d1c8000, size = 32768 trident: DMA buffer beyond 1 GB; bus address = 0x4d1c8000, size = 32768 trident: DMA buffer beyond 1 GB; bus address = 0x4d1c8000, size = 32768 On the top of this, right after this message sox may claim that 'size=0'. 'lspci' provides the following information about the machine in question: -[00]-+-0d.0-[01]--+-0a.0 Trident Microsystems 4DWave DX | \-0d.0 Symbios Logic Inc. (formerly NCR) 53c875 +-0e.0 Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] +-0e.1 Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] +-0f.0 Digital Equipment Corporation DECchip 21142/43 \-11.0 Texas Instruments TVP4020 [Permedia 2] 01:0a.0 Multimedia audio controller: Trident Microsystems 4DWave DX (rev 02) Subsystem: Trident Microsystems 4DWave DX Flags: bus master, medium devsel, latency 32, IRQ 27 I/O ports at 9800 Memory at 000000000a902000 (32-bit, non-prefetchable) Capabilities: [48] Power Management version 1 I did have working sound on this hardware (never tried with kernels from Red Hat). Oh, saving sound settings in /etc/.aumixrc will fail on systems where root is mounted read-only. Michal michal