Am Montag, 8. März 2010 19:50:23 schrieb Alan Stern:
> > > sg and src need to be compared with the original values when the
> > > scatterlist was created. In invoke_transport() print out the values of
> > > scsi_sglist(srb), srb->sense_buffer, &ses->sense_sgl, and
> > > sg_virt(&ses->sense_sgl). Do this after the call to
> > > scsi_eh_prep_cmnd().
> > Mar 8 19:06:10 vanamonde kernel: usb-storage: Issuing auto-REQUEST_SENSE
> > Mar 8 19:06:10 vanamonde kernel: usb_stor_invoke_transport - sglist ffff880135b37dc8 sense buffer ffff8801363db940 sense sgl ffff8801363db940 sg_virt ffffea00043dd7ea page link 0000000087654321 dmaaddr ffffea0 0043dd7ea
> > Mar 8 19:06:10 vanamonde kernel: usb-storage: Bulk Command S 0x43425355 T 0x118 L 18 F 128 Trg 0 LUN 0 CL 6
> > Mar 8 19:06:10 vanamonde kernel: usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes
> > Mar 8 19:06:10 vanamonde kernel: mon_text_get_data: num_sgs == 0: src ffff880037807000
>
> There are several problems here. Are you sure your printk line really
> matches the right value with each label?
Retry_Sense:
US_DEBUGP("Issuing auto-REQUEST_SENSE\n");
scsi_eh_prep_cmnd(srb, &ses, NULL, 0, sense_size);
printk(KERN_ERR"%s - sglist %p sense buffer %p sense sgl %p sg_virt %p page link %p dmaaddr %p\n", __func__,
scsi_sglist(srb), srb->sense_buffer, ses.sense_sgl, ((void *)sg_virt(&ses.sense_sgl)),
(void *)ses.sense_sgl.page_link, (void *)ses.sense_sgl.dma_address);
As far as I can tell, it is correct? Disassembly needed?
Regards
Oliver
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