linux-kernel - Re: [WIP PATCHSET 0/4] WIP branch for bfq-mq

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Date:   Mon, 13 Feb 2017 22:38:57 +0000
From:   Bart Van Assche <Bart.VanAssche@...disk.com>
To:     "paolo.valente@...aro.org" <paolo.valente@...aro.org>
CC:     "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        "tj@...nel.org" <tj@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "axboe@...nel.dk" <axboe@...nel.dk>
Subject: Re: [WIP PATCHSET 0/4] WIP branch for bfq-mq

On Mon, 2017-02-13 at 22:07 +0000, Bart Van Assche wrote:
> On Mon, 2017-02-13 at 22:07 +0100, Paolo Valente wrote:
> > but what do you think about trying this fix?
> 
> Sorry but with ... the same server I used for the previous test still
> didn't boot up properly. A screenshot is available at
> https://goo.gl/photos/Za9QVGCNe2BJBwxVA.
> 
> > Otherwise, if you have no news or suggestions, would you be willing to
> > try my micro-logging proposal https://github.com/Algodev-github/bfq-mq?
> 
> Sorry but it's not clear to me what logging mechanism you are referring
> to and how to enable it? Are you perhaps referring to
> CONFIG_BFQ_REDIRECT_TO_CONSOLE?

Anyway, a second screenshot has been added to the same album after I had
applied the following patch:

diff --git a/block/Makefile b/block/Makefile
index 1c04fe19e825..bf472ac82c08 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -2,6 +2,8 @@
 # Makefile for the kernel block layer
 #
  
+KBUILD_CFLAGS += -DCONFIG_BFQ_REDIRECT_TO_CONSOLE
+

 obj-$(CONFIG_BLOCK) := bio.o elevator.o blk-core.o blk-tag.o blk-sysfs.o \
                        blk-flush.o blk-settings.o blk-ioc.o blk-map.o \
                        blk-exec.o blk-merge.o blk-softirq.o blk-timeout.o \

Bart.