From: Giuseppe Sacco <giuseppe@sguazz.it>
To: Christophe Leroy <christophe.leroy@csgroup.eu>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>
Subject: Re: kernel since 5.6 do not boot anymore on Apple PowerBook
Date: Mon, 24 Aug 2020 22:48:58 +0200 [thread overview]
Message-ID: <e7a620fa7521e84e2010660b87f20dd24a3b0cd4.camel@sguazz.it> (raw)
In-Reply-To: <f96d336d-fb81-fe9d-9890-db57c6560e85@csgroup.eu>
Hello Christophe,
Il giorno lun, 24/08/2020 alle 07.17 +0200, Christophe Leroy ha
scritto:
> Hello Giuseppe,
[...]
> The Oopses in the video are fixed in 5.9-rc2, see my response to your
> other mail.
Right, I just updated from git and rebuilt the kernel whith
CONFIG_VMAP_STACK not set and the machine boots correctly.
> So now we know that your kernel doesn't boot when CONFIG_VMAP_STACK is set.
> Can you remind the exact problem ?
latest kernel with CONFIG_VMAP_STACK set stops after writing:
pmac32_cpufreq: registering PowerMac CPU frequency driver
pmac32_cpufreq: Low: 667 MHz, High: 867 Mhz, Boot: 667 MHz
> One common problem with CONFIG_VMAP_STACK is when some drivers are
> invalidly using buffers in stack for DMA.
>
> Couldn't try with CONFIG_DEBUG_VIRTUAL (without CONFIG_VMAP_STACK) and
> see if it triggers some warnings ?
I've just tried: it boots without any special warning. What should I
look for? This is an excerpt of dmesg output about the line it would
otherwise stop:
[...]
[ 6.566984] PowerMac i2c bus pmu 2 registered
[ 6.574879] PowerMac i2c bus pmu 1 registered
[ 6.582634] PowerMac i2c bus mac-io 0 registered
[ 6.590323] i2c i2c-2: No i2c address for /pci@f2000000/mac-io@17/i2c@18000/i2c-modem
[ 6.598290] PowerMac i2c bus uni-n 1 registered
[ 6.606196] i2c i2c-3: i2c-powermac: modalias failure on /uni-n@f8000000/i2c@f8001000/cereal@1c0
[ 6.614320] PowerMac i2c bus uni-n 0 registered
[ 6.622501] pmac32_cpufreq: Registering PowerMac CPU frequency driver
[ 6.630580] pmac32_cpufreq: Low: 667 Mhz, High: 867 Mhz, Boot: 667 Mhz
[ 6.639518] ledtrig-cpu: registered to indicate activity on CPUs
[ 6.647894] NET: Registered protocol family 10
[ 6.656492] Segment Routing with IPv6
[ 6.664490] mip6: Mobile IPv6
[ 6.672337] NET: Registered protocol family 17
[ 6.680213] mpls_gso: MPLS GSO support
[...]
Bye,
Giuseppe
next prev parent reply other threads:[~2020-08-25 5:29 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-07 12:58 kernel since 5.6 do not boot anymore on Apple PowerBook Giuseppe Sacco
2020-07-07 13:35 ` Christophe Leroy
2020-07-07 14:03 ` Giuseppe Sacco
2020-07-07 14:52 ` Christophe Leroy
2020-07-07 15:34 ` Giuseppe Sacco
2020-07-08 7:59 ` Giuseppe Sacco
2020-07-08 8:38 ` Christophe Leroy
2020-07-08 8:56 ` Giuseppe Sacco
2020-07-08 17:00 ` Giuseppe Sacco
2020-07-08 17:09 ` Christophe Leroy
2020-07-08 17:36 ` Giuseppe Sacco
2020-07-08 18:44 ` Christophe Leroy
2020-08-21 6:55 ` Christophe Leroy
2020-08-21 8:22 ` Giuseppe Sacco
2020-08-21 13:29 ` Christophe Leroy
[not found] ` <8ce38d9bb162268f53a2292a916c44579421e552.camel@sguazz.it>
2020-08-21 14:03 ` Christophe Leroy
2020-08-21 15:44 ` Giuseppe Sacco
2020-08-22 8:28 ` Giuseppe Sacco
2020-08-24 5:17 ` Christophe Leroy
2020-08-24 20:48 ` Giuseppe Sacco [this message]
2020-08-26 10:10 ` Christophe Leroy
2020-08-26 13:53 ` Christophe Leroy
2020-08-26 22:28 ` Giuseppe Sacco
2020-08-27 7:46 ` Giuseppe Sacco
2020-08-27 8:28 ` Giuseppe Sacco
2020-08-27 10:39 ` Christophe Leroy
2020-08-27 14:37 ` Giuseppe Sacco
2020-08-27 18:28 ` Christophe Leroy
2020-08-28 17:07 ` Gabriel Paubert
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=e7a620fa7521e84e2010660b87f20dd24a3b0cd4.camel@sguazz.it \
--to=giuseppe@sguazz.it \
--cc=christophe.leroy@csgroup.eu \
--cc=linuxppc-dev@lists.ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).