From: Russell King - ARM Linux <linux@armlinux.org.uk>
To: Will Deacon <will.deacon@arm.com>
Cc: Brian Starkey <brian.starkey@arm.com>,
Eric Dumazet <edumazet@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alexander Potapenko <glider@google.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: Re: Regression: Failed boots bisected to 4cd13c21b207 "softirq: Let ksoftirqd do its job"
Date: Mon, 6 Feb 2017 18:49:42 +0000 [thread overview]
Message-ID: <20170206184942.GM27312@n2100.armlinux.org.uk> (raw)
In-Reply-To: <20170206184619.GB20777@arm.com>
On Mon, Feb 06, 2017 at 06:46:19PM +0000, Will Deacon wrote:
> Converting the smc91x driver over to NAPI would probably solve this problem,
> but given the "vintage" of this code, I'd be more tempted by a simpler
> point fix if only I could think of one.
I'm not sure if converting it to NAPI would solve it, or just move
the problem elsewhere - IOW, move it from "we need to drop the packet
because we couldn't allocate a skb" to "the hardware dropped the packed
because the FIFO was full."
Yes, I'm intending giving it a go, once I've a spare moment to build
a kernel for the platform etc. It runs root NFS, so should be a good
test for it.
--
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2017-02-06 18:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-16 13:55 Regression: Failed boots bisected to 4cd13c21b207 "softirq: Let ksoftirqd do its job" Brian Starkey
2016-11-16 15:52 ` Eric Dumazet
2016-11-16 18:01 ` Brian Starkey
2016-11-16 18:49 ` Eric Dumazet
2016-11-16 21:01 ` Brian Starkey
2016-11-17 15:29 ` Eric Dumazet
2016-11-17 16:42 ` Brian Starkey
2016-11-18 0:40 ` Thomas Gleixner
2016-11-18 20:23 ` Brian Starkey
2016-11-22 10:33 ` Brian Starkey
2016-11-22 14:29 ` Eric Dumazet
2016-11-22 15:27 ` Brian Starkey
2016-11-22 16:09 ` Eric Dumazet
2016-11-23 18:21 ` Brian Starkey
2016-11-23 20:03 ` Eric Dumazet
2016-11-25 13:14 ` Brian Starkey
2017-02-06 18:46 ` Will Deacon
2017-02-06 18:49 ` Russell King - ARM Linux [this message]
2017-02-08 9:46 ` Will Deacon
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=20170206184942.GM27312@n2100.armlinux.org.uk \
--to=linux@armlinux.org.uk \
--cc=akpm@linux-foundation.org \
--cc=bigeasy@linutronix.de \
--cc=brian.starkey@arm.com \
--cc=edumazet@google.com \
--cc=glider@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
--cc=will.deacon@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).