On Sat, Jun 11, 2016 at 11:54 AM, Linus Torvalds <torva...@linux-foundation.org> wrote: > > Is there some reason to believe that the qemu CD-ROM emulation is the > only one with this problem?
Side note:the one thing that makes the qemu cd-rom emulator "special" is not that it's not real hardware: it's that it's a lot more likely to be tested than just about any other actual cd-rom out there, especially in environments that test new kernels. Lots of developers tend to have rather modern machines (and I haven't had a CD-ROM in my machine for the last couple of years, I think), or alternatively they end up booting things in emulation because it makes for easy testing. So I really don't think that "oh, it happened only with a broken emulated device" is a very strong argument for saying that that emulated device was the problem. I really think it's likely that the whole "require VPD" is garbage. The whole "everybody and their dog has used qemu, and the qemu cd-rom emulation worked perfectly fine before" is a damn strong argument that it's the new kernel doing something wrong. So please figure our what the real breakage was, and fix *that* instead of blaming qemu. Linus