[opensuse-arm] armv7hl kernel-default config have tegra20 serial output broken
Hello, I found that latest images for my armv7 board (paz00/ac100) which use kernel-default have kernel panic on start without any output to serial console, but serial output was working last time i tested image back in may. I cloned kernel-source git repo made sequence-patched kernel and recompiled it with enabling DEBUG_LL,TEGRA UART_A and EARLYPRINTK config options added to config/armv7hl/default config, but found that there is no ttyS0 output, only earlycon here is paste: http://paste.opensuse.org/31390203 Recompiling same kernel with multi_v7_defconfig config and same debug/earlyprintk options have no panics and normal serial output: http://paste.opensuse.org/13080662 Maybe kernel-default config require some extra tricks now to have serial output? I want to catch that panic. --- Best Regards, Misha Komarovskiy zombahatgmaildotcom -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
Hi, Am 01.08.2015 um 11:48 schrieb Misha Komarovskiy:
I found that latest images for my armv7 board (paz00/ac100) which use kernel-default have kernel panic on start without any output to serial [...] I cloned kernel-source git repo made sequence-patched kernel and recompiled it with enabling DEBUG_LL,TEGRA UART_A and EARLYPRINTK config options added to config/armv7hl/default config, but found that there is no ttyS0
Since you have a test setup, could you try changing CONFIG_SERIAL_OF_PLATFORM from =m to =y as previously suggested? Cheers, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Dilip Upmanyu, Graham Norton; HRB 21284 (AG Nürnberg) -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
Hello Andreas,
You are right, serial console output is back with CONFIG_SERIAL_OF_PLATFORM=y
---
Best Regards,
Misha Komarovskiy
zombahatgmaildotcom
On Sat, Aug 1, 2015 at 4:37 PM, Andreas Färber
Hi,
Am 01.08.2015 um 11:48 schrieb Misha Komarovskiy:
I found that latest images for my armv7 board (paz00/ac100) which use kernel-default have kernel panic on start without any output to serial [...] I cloned kernel-source git repo made sequence-patched kernel and recompiled it with enabling DEBUG_LL,TEGRA UART_A and EARLYPRINTK config options added to config/armv7hl/default config, but found that there is no ttyS0
Since you have a test setup, could you try changing CONFIG_SERIAL_OF_PLATFORM from =m to =y as previously suggested?
Cheers, Andreas
-- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Dilip Upmanyu, Graham Norton; HRB 21284 (AG Nürnberg) -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
Hello Misha, Am 03.08.2015 um 14:08 schrieb Misha Komarovskiy:
You are right, serial console output is back with CONFIG_SERIAL_OF_PLATFORM=y
Thanks for testing, I committed a fix on master together with some more serial cleanups. Should appear in Kernel:HEAD around tomorrow. And backported to stable branch. Looks like we need stricter patch review when I'm otherwise busy. ;) Cheers, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Dilip Upmanyu, Graham Norton; HRB 21284 (AG Nürnberg) -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
Am 03.08.2015 um 18:39 schrieb Andreas Färber:
Hello Misha,
Am 03.08.2015 um 14:08 schrieb Misha Komarovskiy:
You are right, serial console output is back with CONFIG_SERIAL_OF_PLATFORM=y
Thanks for testing, I committed a fix on master together with some more serial cleanups. Should appear in Kernel:HEAD around tomorrow.
And backported to stable branch.
FTR, while Kernel:stable didn't fix Cubietruck serial yet, it did fix Jetson TK1 serial. Regards, Andreas -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Dilip Upmanyu, Graham Norton; HRB 21284 (AG Nürnberg) -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org
participants (2)
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Andreas Färber -
Misha Komarovskiy