From: Sami Tolvanen <samitolvanen@google.com>
To: device-mapper development <dm-devel@redhat.com>
Cc: mpatocka@redhat.com, msb@chromium.org, wad@chromium.org
Subject: Re: [PATCH] dm-verity: Add error handling modes for corrupted blocks
Date: Tue, 17 Mar 2015 16:06:49 +0000 [thread overview]
Message-ID: <20150317160649.GA36193@google.com> (raw)
In-Reply-To: <20150317152749.GA24901@redhat.com>
On Tue, Mar 17, 2015 at 11:27:49AM -0400, Vivek Goyal wrote:
> What's the idea behind kernel restart mode ? If a corrupted block is in
> the path of boot, will we not get into a continuous reboot cycle.
It depends on how dm-verity is used. If we have PSTORE_CONSOLE enabled, for
example, after a restart we can check if the restart was caused by dm-verity
and then use a different mode when setting up the verity device. Most likely
for some systems this is not a reasonable recovery method, but we find it to
be useful on Android at least.
Sami
next prev parent reply other threads:[~2015-03-17 16:06 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-16 15:55 [PATCH] dm-verity: Add error handling modes for corrupted blocks Sami Tolvanen
2015-03-16 22:13 ` Will Drewry
2015-03-17 0:45 ` Alasdair G Kergon
2015-03-17 10:35 ` Sami Tolvanen
2015-03-17 10:23 ` Sami Tolvanen
2015-03-17 0:37 ` Alasdair G Kergon
2015-03-17 10:36 ` Sami Tolvanen
2015-03-17 15:27 ` Vivek Goyal
2015-03-17 16:06 ` Sami Tolvanen [this message]
2015-03-17 18:03 ` Vivek Goyal
2015-03-18 13:24 ` Sami Tolvanen
2015-03-18 15:42 ` Mikulas Patocka
2015-03-18 15:49 ` Sami Tolvanen
2015-03-17 16:37 ` [PATCHv2] " Sami Tolvanen
2015-03-17 18:50 ` Alasdair G Kergon
2015-03-18 13:26 ` Sami Tolvanen
2015-03-18 15:52 ` [PATCHv3] " Sami Tolvanen
2015-03-19 22:18 ` Mike Snitzer
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