Description of problem: - remove magic number 8 and 64. page size / sector size is 8 on x86, however on ia64 page size is 16kb. blkring size is 64 on x86. however it's 128 on ia64. - replace 0xFFFF with INVALID_GRANT_HANDLE - don't map io ring into user space with uncachable. kernel access the page with cacable and tapdisk uses memory barrier so that it isn't necessary. - remove printk warning and inserted new line. - remove unused variable, page. - add one BUG() cset#12269 fixes the issue.
This request was evaluated by Red Hat Kernel Team for inclusion in a Red Hat Enterprise Linux maintenance release, and has moved to bugzilla status POST.
in 2.6.18-32.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5
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Confirmed fix is in the -45.el5 kernel.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2007-0959.html