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The call to intf_close() may result in the original interface being reopened. For example: when reading the capacity of a 2TB+ disk via iSCSI, the SCSI layer will respond to the intf_close() from the READ CAPACITY (10) command by immediately issuing a READ CAPACITY (16) command. The iSCSI layer happens to reuse the same interface for the new command (since it allows only a single concurrent command). Currently, intf_shutdown() unplugs the interface after the call to intf_close() returns. In the above scenario, this results in unplugging the just-reopened interface. Fix by transferring the interface destination (and its reference) to a temporary interface, and so effectively performing the unplug before making the call to intf_close(). Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE README File Quick start guide: cd src make For any more detailed instructions, see http://ipxe.org