topic 4.1.15 BSP register_console issue in i.MX Processors

4.1.15 BSP register_console issue

jiujinhong — Thu, 18 Jan 2018 05:34:31 GMT

Hi,

I have met the same issue with,

https://community.nxp.com/message/903516?commentID=903516#comment-903516

https://community.nxp.com/message/860225)

20180118_11:43:13][    2.834930] 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 25, base_baud = 5000000) is a IMX
20180118_11:43:13][    2.835783] 21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 301, base_baud = 5000000) is a IMX
20180118_11:43:13][    2.835843] register_console pre console_unlock >>>>>>>>
20180118_11:43:13][    4.225332] register_console console_unlock() complete >>>>>>>>
20180118_11:43:13][    4.231314] console [ttymxc3] enabled
20180118_11:43:13][    4.235678] 21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 302, base_baud = 5000000) is a IMX
20180118_11:43:13][    4.246606] [drm] Initialized drm 1.1.0 20060810

printk("%s pre console_unlock >>>>>>>>\n", __func__);
console_unlock();
printk("%s console_unlock() complete >>>>>>>>\n", __func__);

I am sure that this is BSP issue. the solution metioned in Linux Kernel - Deadlock in fb and tty doesn't make any sense.

Re: 4.1.15 BSP register_console issue

igorpadykov — Thu, 18 Jan 2018 06:25:54 GMT

Hi jiu

had you tried to reproduce issue on nxp reference boards with demo

images on

https://www.nxp.com/support/developer-resources/run-time-software/i.mx-developer-resources/i.mx-6series-i.mx-7series-software-and-development-tool-resources:IMX_SW

Best regards
igor
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Re: 4.1.15 BSP register_console issue

jiujinhong — Fri, 19 Jan 2018 05:28:49 GMT

No, I have no reference board.

Re: 4.1.15 BSP register_console issue

jiujinhong — Fri, 19 Jan 2018 05:30:06 GMT

several people met the same issue so that i think it is a generic issue.

Re: 4.1.15 BSP register_console issue

igorpadykov — Fri, 19 Jan 2018 06:16:27 GMT

had you tried minimal linux configuration.

Re: 4.1.15 BSP register_console issue

jiujinhong — Mon, 22 Jan 2018 03:14:15 GMT

yes, no make any sense. You can test in your sabresd board to see if any issue?