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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH][PVFB][LINUX] Fix possible sleep while holding spinlock
On 15/12/06 16:38, "Markus Armbruster" <armbru@xxxxxxxxxx> wrote: > This patch fixes the locking, but leaves open a race between > xenfb_update_screen() and do_no_page(). See the source code for a > detailed explanation of how it works, and where it fails. That's a bit of a shame. Is there any way we could use do_file_page() and have a populate hook (which gets to install the PTE itself)? Or are there lots of assumptions about VMAs that would take this path, assert VM_NONLINEAR, etc? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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