Re: atacontrol kernel crash (atausb?)

* M. Warner Losh <imp@xxxxxxxxxx> wrote:
In message: <200701241254.51900.hselasky@xxxxxxx>
Hans Petter Selasky <hselasky@xxxxxxx> writes:
: Instead of having all these quirks, isn't it possible that the SCSI layer can
: auto-probe this?

The short answer is no. There's no reliable way to tell if a device
supports a given scsi command, and some devices freak out (lock up)
when sent one.

Well, in one of the scenario's there is. USB UFI devices never support
synchronize.

--
Ed Schouten <ed@xxxxxx>
WWW: http://g-rave.nl/

Attachment: pgpJJnVdJeh2k.pgp
Description: PGP signature

Relevant Pages

  • Re: atacontrol kernel crash (atausb?)
    ... Hans Petter Selasky writes: ... Instead of having all these quirks, isn't it possible that the SCSI layer can ... : auto-probe this? ...
    (freebsd-hackers)
  • Re: atacontrol kernel crash (atausb?)
    ... Instead of having all these quirks, isn't it possible that the SCSI layer can ... : auto-probe this? ... and some devices freak out ...
    (freebsd-hackers)
  • Re: atacontrol kernel crash (atausb?)
    ... Instead of having all these quirks, isn't it possible that the SCSI layer can ... : auto-probe this? ... and some devices freak out ...
    (freebsd-stable)
  • Re: EFI partition code broken..
    ... The thing is, if you start doing quirks, you _are_ screwed in the end. ... the USB storage stuff has historically had tons of quirks, ... SCSI layer historically only cared about high-end devices, ... documented feature under the sun just because it exists. ...
    (Linux-Kernel)