Re: port-arm/54614: playing with uaudio panics on rpi

To: gnats-bugs%netbsd.org@localhost
Subject: Re: port-arm/54614: playing with uaudio panics on rpi
From: Jason Thorpe <thorpej%me.com@localhost>
Date: Sat, 12 Oct 2019 08:12:10 -0700

IIRC, we've seen this problem with uvideo before as well.

We should just loosen this assertion in the ARM bus_dma code and explicitly allow zero-length bus_dmamap_sync operations (as a no-op).

> On Oct 12, 2019, at 6:25 AM, sc.dying%gmail.com@localhost wrote:
> [  26.9767799] panic: kernel diagnostic assertion "len > 0 && offset + len <= map->dm_mapsize" failed: file "/usr/src/sys/arch/arm/arm32/bus_dma.c", line 1058 len 0 offset 0 mapsize 4096

-- thorpej

References:
- port-arm/54614: playing with uaudio panics on rpi
  - From: sc . dying

Prev by Date: kern/54615: genfb issues after switching graphics mode in efiboot
Next by Date: Re: port-arm/54614: playing with uaudio panics on rpi
Previous by Thread: port-arm/54614: playing with uaudio panics on rpi
Next by Thread: Re: port-arm/54614: playing with uaudio panics on rpi
Indexes:

Home | Main Index | Thread Index | Old Index