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Re: [PATCH 0/4] dm verity: add support for error correction

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On 2015-11-07 10:18, Mikulas Patocka wrote:
>
>
> On Fri, 6 Nov 2015, Sami Tolvanen wrote:
>
>> On Fri, Nov 06, 2015 at 12:23:29PM -0500, Mikulas Patocka wrote:
>>> Do you have some real case where such error corrections
>>> increase longevity of some device?
>>
>> Yes, there have been several cases where read-only partition errors
>> have rendered a device unusable. The sheer volume of mobile devices
>> means that even if a tiny fraction of them suffer from such a problem,
>> it's going to affect a large number of people.
>
> Why don't you reflash the device from bootloader? (by holding power and
> volume keys simultaneously on startup and using the fastboot utility)
Requiring an end user to re-flash their device is not good business 
practice, even if it is a rare occurrence (it adds a potential 
attack-vector for malware, and is decidedly non-trivial to do for 
someone without programming background).  Phones, tablets, and other 
embedded systems are the type of thing where the device needs to be 
usable when the user wants to access it, period.  Minimizing the chances 
of the device not working (even for less common causes like this patch 
tries to protect against) is crucial to making the user experience as 
good as possible (and reducing customer support costs).

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[PATCH 0/4] dm verity: add support for error correction Sami Tolvanen <samitolvanen@google.com> - 2015-11-05 03:10 +0100
  [PATCH 1/4] dm verity: clean up duplicate hashing code Sami Tolvanen <samitolvanen@google.com> - 2015-11-05 03:10 +0100
  [PATCH 4/4] dm verity: ignore zero blocks Sami Tolvanen <samitolvanen@google.com> - 2015-11-05 03:10 +0100
  [PATCH 3/4] dm verity: add support for forward error correction Sami Tolvanen <samitolvanen@google.com> - 2015-11-05 03:10 +0100
    Re: [PATCH 3/4] dm verity: add support for forward error correction kbuild test robot <lkp@intel.com> - 2015-11-05 06:40 +0100
  [PATCH 2/4] dm verity: separate function for parsing opt args Sami Tolvanen <samitolvanen@google.com> - 2015-11-05 03:10 +0100
  Re: [PATCH 0/4] dm verity: add support for error correction Milan Broz <mbroz@redhat.com> - 2015-11-05 08:40 +0100
    Re: [PATCH 0/4] dm verity: add support for error correction Sami Tolvanen <samitolvanen@google.com> - 2015-11-05 18:40 +0100
      Re: [PATCH 0/4] dm verity: add support for error correction Mike Snitzer <snitzer@redhat.com> - 2015-11-09 17:40 +0100
        Re: [PATCH 0/4] dm verity: add support for error correction Sami Tolvanen <samitolvanen@google.com> - 2015-11-09 20:20 +0100
          Re: [PATCH 0/4] dm verity: add support for error correction Mike Snitzer <snitzer@redhat.com> - 2015-11-09 21:00 +0100
          Re: [PATCH 0/4] dm verity: add support for error correction Milan Broz <mbroz@redhat.com> - 2015-11-12 11:40 +0100
          Re: [PATCH 0/4] dm verity: add support for error correction Mikulas Patocka <mpatocka@redhat.com> - 2015-11-12 20:00 +0100
    Re: [PATCH 0/4] dm verity: add support for error correction Mikulas Patocka <mpatocka@redhat.com> - 2015-11-06 18:30 +0100
      Re: [PATCH 0/4] dm verity: add support for error correction Sami Tolvanen <samitolvanen@google.com> - 2015-11-06 20:10 +0100
        Re: [dm-devel] [PATCH 0/4] dm verity: add support for error  correction Zdenek Kabelac <zkabelac@redhat.com> - 2015-11-06 20:30 +0100
          Re: [dm-devel] [PATCH 0/4] dm verity: add support for error  correction Sami Tolvanen <samitolvanen@google.com> - 2015-11-06 21:30 +0100
            Re: [dm-devel] [PATCH 0/4] dm verity: add support for error  correction Zdenek Kabelac <zkabelac@redhat.com> - 2015-11-06 22:10 +0100
              Re: [dm-devel] [PATCH 0/4] dm verity: add support for error  correction Sami Tolvanen <samitolvanen@google.com> - 2015-11-06 22:30 +0100
                Re: [dm-devel] [PATCH 0/4] dm verity: add support for error  correction Mikulas Patocka <mpatocka@redhat.com> - 2015-11-07 16:30 +0100
            Re: [dm-devel] [PATCH 0/4] dm verity: add support for error  correction Mikulas Patocka <mpatocka@redhat.com> - 2015-11-07 16:30 +0100
        Re: [PATCH 0/4] dm verity: add support for error correction Mikulas Patocka <mpatocka@redhat.com> - 2015-11-07 16:20 +0100
          Re: [PATCH 0/4] dm verity: add support for error correction Austin S Hemmelgarn <ahferroin7@gmail.com> - 2015-11-09 16:10 +0100

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