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* [Regression 5.6-rc1][Bisected b6231ea2b3c6] Powerpc 8xx doesn't boot anymore
@ 2020-02-12 14:24 Christophe Leroy
  2020-02-12 14:42 ` Christophe Leroy
                   ` (2 more replies)
  0 siblings, 3 replies; 10+ messages in thread
From: Christophe Leroy @ 2020-02-12 14:24 UTC (permalink / raw)
  To: Rasmus Villemoes, Li Yang, Qiang Zhao, Greg Kroah-Hartman
  Cc: linuxppc-dev, Scott Wood, linux-arm-kernel, LKML

Hi Rasmus,

Kernel 5.6-rc1 silently fails on boot.

I bisected the problem to commit b6231ea2b3c6 ("soc: fsl: qe: drop 
broken lazy call of cpm_muram_init()")

I get a bad_page_fault() for an access at address 8 in 
cpm_muram_alloc_common(), called from cpm_uart_console_setup() via 

Reverting the guilty commit on top of 5.6-rc1 is not trivial.

In your commit text you explain that cpm_muram_init() is called via 
subsys_initcall. But console init is done before that, so it cannot work.

Do you have a fix for that ?


NB: Next time, can you please copy powerpc mailing list when changing 
such core parts of powerpc CPUs ?

^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2020-02-13 10:50 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-02-12 14:24 [Regression 5.6-rc1][Bisected b6231ea2b3c6] Powerpc 8xx doesn't boot anymore Christophe Leroy
2020-02-12 14:42 ` Christophe Leroy
2020-02-12 14:50 ` Christophe Leroy
2020-02-13  3:35   ` Qiang Zhao
2020-02-13  6:17     ` Christophe Leroy
2020-02-13  6:36       ` Qiang Zhao
2020-02-13  9:37   ` Rasmus Villemoes
2020-02-13 10:50     ` Christophe Leroy
2020-02-13  7:45 ` Rasmus Villemoes
2020-02-13 10:40   ` Christophe Leroy

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