Messages in this thread | | | Date | Sun, 9 Dec 2001 14:58:25 +0100 | From | Jens Axboe <> | Subject | Re: OOPS: 2.5.1-pre8 - cdrecord + ide_scsi |
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On Sun, Dec 09 2001, Carl Ritson wrote: > > > On Sun, Dec 09 2001, Jens Axboe wrote: > > > On Sun, Dec 09 2001, Carl Ritson wrote: > > > > Got this at the very start of burning a cd, nothing special, using > > > > ide-scsi build into kernel. "cdrecord -v dev=0,0,0 speed=4 img.iso". > > > > Box is Dual-PIII 866, 1GB Ram, all IDE system. > > > > > > Agrh, because of a bug in ide-scsi conversion this (other) bug went > > > unnoticed for a while. Basically we cannot look up the request queue > > > reliably from a request, since it may not have originated from the block > > > layer. ide-scsi builds it's own, for example. For those, we don't want > > > to trust the sg count either. > > > > > > Does attached patch work? > > > > Irk, there's a ide-scsi bug in there too. In > > drivers/scsi/ide-scsi.c:idescsi_free_bio() change the kfree(bhp) to > > bio_put(bhp) > > > > With both these fixes applied cdrecord hangs for 30 seconds, then spits > out "cdrecord: No such device or address. Cannot send SCSI cmd via ioctl", > a couple of hundred times. > > In the from dmesg from the same time I get. > ------ > hdc: timeout waiting for DMA > ide_dmaproc: chipset supported ide_dma_timeout func only: 14 > hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest } > hdc: drive not ready for command > scsi: device set offline - command error recover failed: host 0 channel 0 > id 0 lun 0 > ------
Please try a run with DMA disabled.
-- Jens Axboe
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