From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Li Yang <leoyang.li@nxp.com>, Qiang Zhao <qiang.zhao@nxp.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
Scott Wood <oss@buserror.net>,
linux-arm-kernel@lists.infradead.org,
LKML <linux-kernel@vger.kernel.org>
Subject: [Regression 5.6-rc1][Bisected b6231ea2b3c6] Powerpc 8xx doesn't boot anymore
Date: Wed, 12 Feb 2020 14:24:36 +0000 [thread overview]
Message-ID: <0d45fa64-51ee-0052-cb34-58c770c5b3ce@c-s.fr> (raw)
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
cpm_uart_allocbuf()
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 ?
Thanks
Christophe
NB: Next time, can you please copy powerpc mailing list when changing
such core parts of powerpc CPUs ?
next reply other threads:[~2020-02-12 14:24 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-12 14:24 Christophe Leroy [this message]
2020-02-12 14:42 ` [Regression 5.6-rc1][Bisected b6231ea2b3c6] Powerpc 8xx doesn't boot anymore 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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