Messages in this thread |  | | Date | Mon, 22 Aug 2005 10:44:15 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: rc5 seemed to kill a disk that rc4-mm1 likes. Also some X trouble. |
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On Mon, 22 Aug 2005, Rolf Eike Beer wrote:
> >It's a PII-350 with more or less SuSE 9.3. The machine has no net access, so > > I can only try to narrow it down to one rc at the weekend. > > 2.6.12 works fine, everything since 2.6.13-rc1 breaks it.
Gaah. I don't see anything really obvious in that range. However, I notice that pci_mmap_resource() (in drivers/pci/pci-sysfs.c) now has
+ if (i >= PCI_ROM_RESOURCE) + return -ENODEV;
which seems a big bogus. Why wouldn't we allow the ROM resource to be mapped? I could imagine that the X server would very much like to mmap it, although I don't know if modern X actually does that. The fact that it works when root runs the X server and causes problems for normal users does seem like there's something that root can do that users can't do, and doing a mmap() on /dev/mem might be just that.
Eike, maybe you could change the ">=" to just ">" instead?
PS. The patch that introduced this was billed as "no change for anything but ppc". Tssk.
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