From: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Mahesh J Salgaonkar <mahesh@linux.vnet.ibm.com>,
linuxppc-dev <linuxppc-dev@ozlabs.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Paul Mackerras <paulus@samba.org>,
"Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
Subject: Re: [PATCH] powernv: Load correct TOC pointer while waking up from winkle.
Date: Mon, 8 Aug 2016 12:30:28 +0530 [thread overview]
Message-ID: <20160808070028.GF19419@drishya.in.ibm.com> (raw)
In-Reply-To: <1470436733.12584.164.camel@kernel.crashing.org>
* Benjamin Herrenschmidt <benh@kernel.crashing.org> [2016-08-06 08:38:53]:
> On Fri, 2016-08-05 at 19:13 +0530, Mahesh J Salgaonkar wrote:
> > From: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
> >
> > The function pnv_restore_hyp_resource() loads the TOC into r2 from
> > the invalid PACA pointer before fixing r13 value. This do not affect
> > POWER ISA 3.0 but it does have an impact on POWER ISA 2.07 or less
> > leading CPU to get stuck forever.
>
> When was this broken ? Should this get backported to stable ?
Broken for 4.8-rc1 only after moving the SPRN_HSPRG0 checking to
idle_book3s.S. Hence no back ports needed.
--Vaidy
next prev parent reply other threads:[~2016-08-08 7:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-05 13:43 [PATCH] powernv: Load correct TOC pointer while waking up from winkle Mahesh J Salgaonkar
2016-08-05 22:38 ` Benjamin Herrenschmidt
2016-08-06 3:00 ` Mahesh Jagannath Salgaonkar
2016-08-08 7:00 ` Vaidyanathan Srinivasan [this message]
2016-08-08 6:39 ` Vaidyanathan Srinivasan
2016-08-09 11:26 ` Michael Ellerman
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=20160808070028.GF19419@drishya.in.ibm.com \
--to=svaidy@linux.vnet.ibm.com \
--cc=benh@kernel.crashing.org \
--cc=ego@linux.vnet.ibm.com \
--cc=linuxppc-dev@ozlabs.org \
--cc=mahesh@linux.vnet.ibm.com \
--cc=mpe@ellerman.id.au \
--cc=paulus@samba.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).