From: Catalin Marinas <catalin.marinas@arm.com>
To: Douglas Anderson <dianders@chromium.org>
Cc: Michal Hocko <mhocko@suse.com>,
linux-sh@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
kgdb-bugreport@lists.sourceforge.net,
Will Deacon <will.deacon@arm.com>,
linux-kernel@vger.kernel.org, Rich Felker <dalias@libc.org>,
Paul Mackerras <paulus@samba.org>,
"H. Peter Anvin" <hpa@zytor.com>,
sparclinux@vger.kernel.org,
Daniel Thompson <daniel.thompson@linaro.org>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
linux-hexagon@vger.kernel.org, x86@kernel.org,
Russell King <linux@armlinux.org.uk>,
Ingo Molnar <mingo@redhat.com>, Huang Ying <ying.huang@intel.com>,
James Hogan <jhogan@kernel.org>,
linux-snps-arc@lists.infradead.org,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
Vineet Gupta <vgupta@synopsys.com>,
linux-mips@vger.kernel.org, Ralf Baechle <ralf@linux-mips.org>,
Richard Kuo <rkuo@codeaurora.org>,
Paul Burton <paul.burton@mips.com>,
Jason Wessel <jason.wessel@windriver.com>,
Andrew Morton <akpm@linux-foundation.org>,
linuxppc-dev@lists.ozlabs.org,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [REPOST PATCH v6 0/4] kgdb: Fix kgdb_roundup_cpus()
Date: Fri, 7 Dec 2018 17:42:32 +0000 [thread overview]
Message-ID: <20181207174231.GD11961@arrakis.emea.arm.com> (raw)
In-Reply-To: <20181205033828.6156-1-dianders@chromium.org>
On Tue, Dec 04, 2018 at 07:38:24PM -0800, Douglas Anderson wrote:
> Douglas Anderson (4):
> kgdb: Remove irq flags from roundup
> kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function()
> kgdb: Don't round up a CPU that failed rounding up before
> kdb: Don't back trace on a cpu that didn't round up
FWIW, trying these on arm64 (ThunderX2) with CONFIG_KGDB_TESTS_ON_BOOT=y
on top of 4.20-rc5 doesn't boot. It looks like they leave interrupts
disabled when they shouldn't and it trips over the BUG at
mm/vmalloc.c:1380 (called via do_fork -> copy_process).
Now, I don't think these patches make things worse on arm64 since prior
to them the kgdb boot tests on arm64 were stuck in a loop (RUN
singlestep).
--
Catalin
next prev parent reply other threads:[~2018-12-07 17:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-05 3:38 [REPOST PATCH v6 0/4] kgdb: Fix kgdb_roundup_cpus() Douglas Anderson
2018-12-05 3:38 ` [REPOST PATCH v6 1/4] kgdb: Remove irq flags from roundup Douglas Anderson
2018-12-19 16:54 ` Daniel Thompson
2018-12-05 3:38 ` [REPOST PATCH v6 2/4] kgdb: Fix kgdb_roundup_cpus() for arches who used smp_call_function() Douglas Anderson
2018-12-19 16:55 ` Daniel Thompson
2018-12-07 17:42 ` Catalin Marinas [this message]
2018-12-07 18:40 ` [REPOST PATCH v6 0/4] kgdb: Fix kgdb_roundup_cpus() Doug Anderson
2018-12-10 13:50 ` Catalin Marinas
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=20181207174231.GD11961@arrakis.emea.arm.com \
--to=catalin.marinas@arm.com \
--cc=akpm@linux-foundation.org \
--cc=bp@alien8.de \
--cc=dalias@libc.org \
--cc=daniel.thompson@linaro.org \
--cc=davem@davemloft.net \
--cc=dianders@chromium.org \
--cc=hpa@zytor.com \
--cc=jason.wessel@windriver.com \
--cc=jhogan@kernel.org \
--cc=kgdb-bugreport@lists.sourceforge.net \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-hexagon@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=linux-sh@vger.kernel.org \
--cc=linux-snps-arc@lists.infradead.org \
--cc=linux@armlinux.org.uk \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mhocko@suse.com \
--cc=mingo@redhat.com \
--cc=paul.burton@mips.com \
--cc=paulus@samba.org \
--cc=peterz@infradead.org \
--cc=ralf@linux-mips.org \
--cc=rkuo@codeaurora.org \
--cc=rppt@linux.vnet.ibm.com \
--cc=sparclinux@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=vgupta@synopsys.com \
--cc=will.deacon@arm.com \
--cc=x86@kernel.org \
--cc=ying.huang@intel.com \
--cc=ysato@users.sourceforge.jp \
/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).