From: Meelis Roos <mroos@linux.ee>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linux-alpha@vger.kernel.org,
Linux Kernel list <linux-kernel@vger.kernel.org>,
linux-pci@vger.kernel.org
Subject: Re: alpha boot hang - 4.14-rc* regression
Date: Wed, 25 Oct 2017 18:54:48 +0300 (EEST) [thread overview]
Message-ID: <alpine.LRH.2.21.1710251848050.16994@math.ut.ee> (raw)
In-Reply-To: <20171025151413.GA6499@red-moon>
> > > > > > removing libata modules and rebooting fixes it - so it seems to be
> > > > > > loading of libata.
> > > > >
> > > > > Can you please cherry-pick:
> > > > >
> > > > > commit b1f9e5e355e9 ("ide: fix IRQ assignment for PCI bus order probing")
> > > > >
> > > > > from mainline and let us know if that solves the issue ?
> > > >
> > > > No, still breaks the same way (b1f9e5e355e9 patched on top of
> > > > 0e4c2eeb758a).
> > > >
> > > > 4.14.0-rc5-00095-g1c9fec470b81 was also still broken the same way (tried
> > > > on Sunday).
> > >
> > > I am not sure I patched the right sys file but if I did, does the patch
> > > below help ?
> > >
> > > I think that at sata driver binding time the kernel finds a freed
> > > pointer in the host bridge map_irq() hook and that's where things
> > > go wrong.
> > >
> > > Please let me know if that's the right sys file, it is a mechanical
> > > change and making it for other sys file should be reasonably simple.
> > >
> > > Lorenzo
> > >
> > > -- >8 --
> > > diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c
> >
> > "Booting GENERIC on Tsunami variation Webbrick using machine vector
> > Webbrick from SRM"
> >
> > Seems to be the correct file - tsunami is referenced from this file and
> > the IRQ-s are DP264.
> >
> > But the patch does not make a difference :(
>
> It is probably because I patched the wrong map_irq() function,
> I am trying to detect which one you are _actually_ using, if
> the patch below fails I will patch them all (which is what I
> have to do anyway).
>
> Please give this a go - this _has_ to make a difference, it is not
> correct to leave map_irq() pointers as __init memory, IRQ routing
> for modules can't work.
Yes, webrick entry seems to be the correct one fro DS10L. It works fine
on top of the cherry-picked ATA IRQ patch.
Will try it on top of current mainline git.
--
Meelis Roos (mroos@linux.ee)
next prev parent reply other threads:[~2017-10-25 15:54 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-25 8:05 alpha boot hang - 4.14-rc* regression Meelis Roos
2017-10-25 8:12 ` Meelis Roos
2017-10-25 8:43 ` Meelis Roos
2017-10-25 9:21 ` Lorenzo Pieralisi
2017-10-25 12:21 ` Meelis Roos
2017-10-25 13:37 ` Lorenzo Pieralisi
2017-10-25 14:49 ` Meelis Roos
2017-10-25 15:14 ` Lorenzo Pieralisi
2017-10-25 15:54 ` Meelis Roos [this message]
2017-10-25 18:01 ` Meelis Roos
2017-10-26 8:54 ` Lorenzo Pieralisi
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=alpine.LRH.2.21.1710251848050.16994@math.ut.ee \
--to=mroos@linux.ee \
--cc=linux-alpha@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lorenzo.pieralisi@arm.com \
/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).