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由 Don Fry 提交于
Some boards using the 79c976 pcnet32 chip will hang the system if the ethtool --register-dump is performed with the device operational. The request to read bcr30 is retried by the PCI device infinitely without returning data, hanging the system. Tested ia32 and ppc64. Signed-off-by: NDon Fry <brazilnut@us.ibm.com> Signed-off-by: NJeff Garzik <jgarzik@pobox.com>
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