serial 00:06: Runtime PM usage count underflow!

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Hi folks,

got a box here which says:

[    4.654361] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[    4.660820] 00:06: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[    4.668313] printk: legacy console [ttyS0] disabled
[    4.676903] serial 00:06: Runtime PM usage count underflow!
[    4.677175] serial 00:06: disabled
[    4.677264] serial 00:06: unable to assign resources
[    4.677356] serial 00:06: probe with driver serial failed with error -16
[    4.677923] printk: legacy console [ttyS0] disabled

Any suggestions?

I'd like to use the serial cable to catch dmesg but somehow the driver doesn't
like the chip...

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette




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