From: Jan Wiele <jan@wiele.org>
To: linux-bcache@vger.kernel.org
Subject: Re: Hang in bcache/qemu
Date: Thu, 19 Jan 2017 13:22:47 +0100 [thread overview]
Message-ID: <4700072.elc5RSLsh5@j-t460p> (raw)
In-Reply-To: <20170118084830.GA3690@tuebingen.mpg.de>
Am Mittwoch, 18. Januar 2017, 09:48:30 CET schrieb Andre Noll:
> On Wed, Jan 18, 04:35, Kai Krakow wrote
>
> FWIW, I'm seeing this as well on different hardware, and with both
> deadline and CFQ, so it's not a scheduler issue. The problem seems to
> be the bcache writeback thread calling down_write(&dc->writeback_lock)
> while already holding this lock.
Yes, the bug doesn't get triggered when the caching mechanism is set to
writethrough.
Regards,
Jan
next prev parent reply other threads:[~2017-01-19 12:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-11 17:34 Hang in bcache/qemu Jan Wiele
2017-01-18 3:35 ` Kai Krakow
2017-01-18 8:48 ` Andre Noll
2017-01-19 12:22 ` Jan Wiele [this message]
2017-01-19 13:42 ` Kent Overstreet
2017-01-19 14:06 ` Jan Wiele
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=4700072.elc5RSLsh5@j-t460p \
--to=jan@wiele.org \
--cc=linux-bcache@vger.kernel.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