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Re: ext4 FS Crash

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On Fri, Dec 06, 2024 at 02:26:23PM +0100, Jörg-Volker Peetz wrote:
>Should have been more clear. The drive should be idle for a longer 
>time. This is assured by not mounting any partition of the SSD.
>I was able to "repair" unreadable sectors on a built-in SSD of an 
>HP-Probook laptop. As far as I remember I also deleted files which 
>could not be read any more because of defective sectors and restored 
>the files from backup. Such unreadable files can be found by 
>performing, e.g., a checksum calculation of all files on the SSD. 
>Then, leaving the SSD alone, it was able to "replace" the defective 
>sectors by spare sectors.

Sorry, I don't buy that. Whatever happened, it wasn't the drive 
pondering unreadable sectors and then regenerating them. I can believe 
that deleting unreadable files and restoring them made them readable 
again. (Overwriting a bad sector will cause the original block to be 
freed and potentially discarded; after rewriting, the data is not in the 
same physical location it was before.) As outlined in a previous post, 
trimming unused space may also let the drive discard bad blocks. None of 
that requires the drive to be unmounted.

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ext4 FS Crash Daniel Harris <mail.dharris@googlemail.com> - 2024-12-04 13:30 +0100
  Re: ext4 FS Crash Jochen Spieker <ml@well-adjusted.de> - 2024-12-04 13:50 +0100
  Re: ext4 FS Crash Eike Lantzsch ZP5CGE / KY4PZ <zp6cge@gmx.net> - 2024-12-04 15:40 +0100
    Re: ext4 FS Crash "Andrew M.A. Cater" <amacater@einval.com> - 2024-12-04 19:20 +0100
  Re: ext4 FS Crash "Alexander V. Makartsev" <avbetev@gmail.com> - 2024-12-04 17:30 +0100
  Re: ext4 FS Crash Klaus Singvogel <deb-user-ml@singvogel.net> - 2024-12-04 17:50 +0100
    Re: ext4 FS Crash Daniel Harris <mail.dharris@googlemail.com> - 2024-12-04 18:20 +0100
      Re: ext4 FS Crash Michael Stone <mstone@debian.org> - 2024-12-05 00:50 +0100
        Re: ext4 FS Crash Daniel Harris <mail.dharris@googlemail.com> - 2024-12-05 12:00 +0100
          Re: ext4 FS Crash Michael Stone <mstone@debian.org> - 2024-12-05 13:40 +0100
            Re: ext4 FS Crash Daniel Harris <mail.dharris@googlemail.com> - 2024-12-05 16:40 +0100
      Re: ext4 FS Crash Jörg-Volker Peetz <jvpeetz@web.de> - 2024-12-05 10:30 +0100
        Re: ext4 FS Crash Max Nikulin <manikulin@gmail.com> - 2024-12-05 16:30 +0100
          Re: ext4 FS Crash Erwan David <erwan@rail.eu.org> - 2024-12-05 16:40 +0100
            Re: ext4 FS Crash Andy Smith <andy@strugglers.net> - 2024-12-05 17:10 +0100
            Re: ext4 FS Crash gene heskett <gheskett@shentel.net> - 2024-12-06 02:00 +0100
          Re: ext4 FS Crash Michael Stone <mstone@debian.org> - 2024-12-05 18:50 +0100
            Re: ext4 FS Crash Jörg-Volker Peetz <jvpeetz@web.de> - 2024-12-06 14:30 +0100
              Re: ext4 FS Crash Michael Stone <mstone@debian.org> - 2024-12-06 15:00 +0100
                Re: ext4 FS Crash Jörg-Volker Peetz <jvpeetz@web.de> - 2024-12-06 15:10 +0100
                Re: ext4 FS Crash Max Nikulin <manikulin@gmail.com> - 2024-12-06 17:00 +0100
                Re: ext4 FS Crash Michael Stone <mstone@debian.org> - 2024-12-06 17:40 +0100
                Re: ext4 FS Crash Max Nikulin <manikulin@gmail.com> - 2024-12-08 17:30 +0100
                Re: ext4 FS Crash Michael Stone <mstone@debian.org> - 2024-12-08 18:20 +0100
                Re: ext4 FS Crash Max Nikulin <manikulin@gmail.com> - 2024-12-10 04:50 +0100
                Re: ext4 FS Crash Daniel Harris <mail.dharris@googlemail.com> - 2025-01-13 16:30 +0100
    Re: ext4 FS Crash Jeffrey Walton <noloader@gmail.com> - 2024-12-04 22:00 +0100
      Re: ext4 FS Crash Klaus Singvogel <deb-user-ml@singvogel.net> - 2024-12-05 08:30 +0100
        Re: ext4 FS Crash gene heskett <gheskett@shentel.net> - 2024-12-05 11:10 +0100
          Re: ext4 FS Crash Klaus Singvogel <deb-user-ml@singvogel.net> - 2024-12-05 13:10 +0100
            Re: ext4 FS Crash gene heskett <gheskett@shentel.net> - 2024-12-05 13:40 +0100
              Re: ext4 FS Crash Michael Stone <mstone@debian.org> - 2024-12-05 14:00 +0100
              Re: ext4 FS Crash Klaus Singvogel <deb-user-ml@singvogel.net> - 2024-12-05 15:00 +0100
                Re: ext4 FS Crash gene heskett <gheskett@shentel.net> - 2024-12-05 22:30 +0100
  Re: ext4 FS Crash Jeffrey Walton <noloader@gmail.com> - 2024-12-04 18:20 +0100

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