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authorYinghai Lu <yinghai.lu@sun.com>2008-02-06 16:39:45 -0500
committerIngo Molnar <mingo@elte.hu>2008-02-06 16:39:45 -0500
commit20651af9ac60fd6e31360688ad44861a7d05256a (patch)
treea5081b8ffddf2d2d931c16ae2528fd3679ba9760 /lib/crc-itu-t.c
parent971a52d66a3e87d4d2f5d3455e62680447cdb8e9 (diff)
x86: fix mttr trimming
Pavel Emelyanov reported that his networking card did not work and bisected it down to: " The commit 093af8d7f0ba3c6be1485973508584ef081e9f93 x86_32: trim memory by updating e820 broke my e1000 card: on loading driver says that e1000: probe of 0000:04:03.0 failed with error -5 and the interface doesn't appear. " on a 32-bit kernel, base will overflow when try to do PAGE_SHIFT, and highest_addr will always less 4G. So use pfn instead of address to avoid the overflow when more than 4g RAM is installed on a 32-bit kernel. Many thanks to Pavel Emelyanov for reporting and testing it. Bisected-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Yinghai Lu <yinghai.lu@sun.com> Tested-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/crc-itu-t.c')
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