[Tinkerphones] [Gta04-owner] New LetuxOS Kernels

Andreas Kemnade andreas at kemnade.info
Tue Jun 19 19:22:13 CEST 2018


On Tue, 19 Jun 2018 11:38:26 +0200
"H. Nikolaus Schaller" <hns at goldelico.com> wrote:

> Hi,
> we did hunt a while for a big bug in the kernel.
> It was a little flaky and random but the main
> symptom was a kernel NULL pointer panic in
> strcmp().
> 
> The result was that the GTA04 (and also the Pyra)
> did not continue to boot properly. Sometimes it
> came to a login: but then several drivers were
> missing.
> 
> After hunting down the bug it was not a device
> driver but a race and dangling pointer problem
> in the pincontrol subsystem.
> 
> Now we got some patches from the maintainer and
> the problem seems to have disappeared.
> 
> Well, has it or hasn't is?

compiled dca26f608a765008b869991bf29fa241769599fb + my compile fix

result: strcmp problem again.
[    7.335571] [<c074abc0>] (strcmp) from [<c04266bc>] (pinctrl_generic_add_group+0x50/0xc4)
[    7.344116] [<c04266bc>] (pinctrl_generic_add_group) from [<c042b920>] (pcs_dt_node_to_map+0x484/0x820)
[    7.353912] [<c042b920>] (pcs_dt_node_to_map) from [<c04298f4>] (pinctrl_dt_to_map+0x220/0x2bc)
[    7.363006] [<c04298f4>] (pinctrl_dt_to_map) from [<c04269c4>] (create_pinctrl+0x5c/0x318)



Regards,
Andreas
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