From: Kent Overstreet <kent.overstreet@gmail.com>
To: Tejun Heo <tj@kernel.org>
Cc: "Artem S. Tashkinov" <t.artem@lycos.com>,
"Artem S. Tashkinov" <t.artem@mailcity.com>,
Christoph Hellwig <hch@lst.de>, Ming Lin <ming.l@ssi.samsung.com>,
Jens Axboe <axboe@fb.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Steven Whitehouse <swhiteho@redhat.com>,
IDE-ML <linux-ide@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Ming Lei <tom.leiming@gmail.com>
Subject: Re: IO errors after "block: remove bio_get_nr_vecs()"
Date: Mon, 21 Dec 2015 18:59:44 -0900 [thread overview]
Message-ID: <20151222035944.GG20661@kmo-pixel> (raw)
In-Reply-To: <20151221210811.GO4026@mtj.duckdns.org>
On Mon, Dec 21, 2015 at 04:08:11PM -0500, Tejun Heo wrote:
reproduced it with 32 bit pae:
> 1. Exclude memory above 4G line with boot param "max_addr=4G".
doesn't work - max_addr=1G doesn't work either
> 2. Disable highmem with "highmem=0".
works!
> 3. Try booting 64bit kernel.
works
Ok, so maybe it actually is PAE specific... but like you noted the block layer
works entirely in terms of pages so...
The one idea I can think of is - maybe BIOVEC_PHYS_MERGEABLE() is broken in PAE
mode? I am unfamiliar with anything PAE though.
Where does the ahci code consume the sglist?
next prev parent reply other threads:[~2015-12-22 3:59 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-20 17:51 IO errors after "block: remove bio_get_nr_vecs()" Linus Torvalds
2015-12-20 18:18 ` Christoph Hellwig
2015-12-20 18:41 ` Linus Torvalds
2015-12-20 23:36 ` Artem S. Tashkinov
2015-12-21 11:21 ` Dan Aloni
2015-12-20 18:44 ` Kent Overstreet
2015-12-20 23:41 ` Artem S. Tashkinov
2015-12-20 23:25 ` Artem S. Tashkinov
2015-12-20 23:42 ` Kent Overstreet
2015-12-20 23:49 ` Artem S. Tashkinov
2015-12-20 23:23 ` Artem S. Tashkinov
2015-12-21 1:38 ` Ming Lei
2015-12-21 1:50 ` Artem S. Tashkinov
2015-12-21 2:18 ` Ming Lei
2015-12-21 2:25 ` Artem S. Tashkinov
2015-12-21 2:32 ` Kent Overstreet
2015-12-21 3:21 ` Ming Lei
2015-12-21 3:36 ` Artem S. Tashkinov
2015-12-21 4:32 ` Linus Torvalds
2015-12-21 4:43 ` Artem S. Tashkinov
2015-12-21 4:47 ` Linus Torvalds
2015-12-21 5:23 ` Linus Torvalds
2015-12-21 7:31 ` Artem S. Tashkinov
2015-12-22 4:06 ` Artem S. Tashkinov
2015-12-21 4:26 ` Tejun Heo
2015-12-21 5:10 ` Linus Torvalds
2015-12-21 6:55 ` Tejun Heo
2015-12-21 7:25 ` Artem S. Tashkinov
2015-12-21 19:35 ` Tejun Heo
2015-12-21 20:07 ` Tejun Heo
2015-12-21 21:08 ` Tejun Heo
2015-12-22 3:43 ` Kent Overstreet
2015-12-22 3:59 ` Kent Overstreet [this message]
2015-12-22 5:26 ` Junichi Nomura
2015-12-22 5:37 ` Kent Overstreet
2015-12-22 5:38 ` Kent Overstreet
2015-12-22 5:52 ` Artem S. Tashkinov
2015-12-22 5:55 ` Kent Overstreet
2015-12-22 5:59 ` Artem S. Tashkinov
2015-12-22 6:02 ` Kent Overstreet
2015-12-22 17:28 ` Jens Axboe
2015-12-22 4:45 ` Kent Overstreet
2015-12-22 5:10 ` Artem S. Tashkinov
2015-12-22 5:20 ` Artem S. Tashkinov
2015-12-21 22:51 ` Ming Lei
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