Re: Bug: VHCI + USB 3.0

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 9 Apr 2019, Bollinger, Seth wrote:

> > Seth, you can try adding:
> >
> >  blk_queue_virt_boundary(sdev->request_queue, 1024 - 1)
> >
> > in drivers/usb/storage/scsiglue.c:slave_alloc(), just after the call to
> > blk_queue_update_dma_alignment().  Perhaps that will help
> >
> 
> I will do that as a test.  However, I’m concerned that we’re solving only a specific case.  Won’t it fail in a similar way if a different subsystem does the same thing (USB modem or video drivers, etc.)?

Those other drivers don't use the block device interface, as far as I 
know.  So they would have to use other methods for addressing the 
potential problems in any case.  usb-storage is perhaps distinct in 
that it doesn't generate the scatter-gather lists that it uses, but 
instead has to work with whatever the block layer provides.

Alan Stern




[Index of Archives]     [Linux RAID]     [Linux SCSI]     [Linux ATA RAID]     [IDE]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Device Mapper]

  Powered by Linux