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Message-ID: <20070517221418.GA15498@flint.arm.linux.org.uk> Date: Thu, 17 May 2007 23:14:18 +0100 From: Russell King <rmk+lkml@....linux.org.uk> To: CIJOML <cijoml@...ny.cz> Cc: Linux-kernel@...r.kernel.org Subject: Re: Having problems with 8250 module in 2.6.20,2.6.21... On Thu, May 17, 2007 at 10:20:10PM +0200, CIJOML wrote: > Hi, > > with kernel 2.6.20 and 2.6.21 I have problem with my good old router > Dell Dual P2 333MHz. > > Module 8250 getts loaded, but UPS driver is unable talk to UPS: > > Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled > eth0: setting full-duplex. > eth1: setting full-duplex. Looks like no serial ports were found? > ttyS0: LSR safety check engaged! > ttyS0: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! But something in userspace tried to add some, but they don't look like a serial port - the LSR register contains an impossible value for a serial port to be there. > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! > ttyS1: LSR safety check engaged! More attempts at trying to open the nonexistent serial port. > Does anybody work on this problem or can help? Please track down the last kernel version which worked. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: - 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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