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Date: Mon, 14 Sep 2015 10:57:13 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Mikael Pettersson <mikpelinux@...il.com>, Peter Hurley <peter@...leysoftware.com> Cc: linux-kernel@...r.kernel.org Subject: Re: [4.3-rc1 regression] modular 8250 doesn't load On Mon, Sep 14, 2015 at 07:08:10PM +0200, Mikael Pettersson wrote: > I have CONFIG_SERIAL_8250=m. With 4.2 '/sbin/modprobe 8250' worked > and resulted in: > > [ 41.354550] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled > [ 41.375156] serial8250: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A > > With 4.3-rc1 however the command fails and logs the following: > > [ 34.140300] 8250_base: module license 'unspecified' taints kernel. Oops, need to fix that. > [ 34.141846] Disabling lock debugging due to kernel taint > [ 34.143388] 8250_base: Unknown symbol uart_insert_char (err 0) > [ 34.144908] 8250_base: Unknown symbol uart_handle_dcd_change (err 0) > [ 34.146439] 8250_base: Unknown symbol __pm_runtime_resume (err 0) > [ 34.147901] 8250_base: Unknown symbol tty_termios_encode_baud_rate (err 0) > [ 34.149354] 8250_base: Unknown symbol uart_handle_cts_change (err 0) > [ 34.150798] 8250_base: Unknown symbol __pm_runtime_suspend (err 0) > [ 34.152240] 8250_base: Unknown symbol nr_irqs (err 0) Are you sure you did 'modprobe' and not 'insmod'? Peter, care to send a module license fix for this new module you created? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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