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Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0 action 0x0

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Heladu wrote: 
> Greetings,
> I've been experiencing a lot of slowness in general when the system attempts
> to read from the hard drive disk. I use Debian 10 Buster with the MATE desktop
> environment and simple things like opening the calendar applet or right
> clicking to open the context menu takes longer than usual. I noticed the LED
> indicator than turns on when reading from the disk also took longer to turn
> off, so I decided to inspect the logs and I ran into these entries:
> 
> Dec 23 22:33:24 sigma kernel: [ 1250.853537] ata6.00: exception Emask 0x0 SAct
> 0x40000000 SErr 0x0 action 0x0
> Dec 23 22:33:24 sigma kernel: [ 1250.853544] ata6.00: irq_stat 0x40000008
> Dec 23 22:33:24 sigma kernel: [ 1250.853550] ata6.00: failed command: READ
> FPDMA QUEUED
> Dec 23 22:33:24 sigma kernel: [ 1250.853559] ata6.00: cmd
> 60/08:f0:10:96:2b/00:00:01:00:00/40 tag 30 ncq dma 4096 in
> Dec 23 22:33:24 sigma kernel: [ 1250.853559]          res
> 41/40:00:10:96:2b/00:00:01:00:00/00 Emask 0x409 (media error) <F>
> Dec 23 22:33:24 sigma kernel: [ 1250.853563] ata6.00: status: { DRDY ERR }
> Dec 23 22:33:24 sigma kernel: [ 1250.853566] ata6.00: error: { UNC }
> Dec 23 22:33:24 sigma kernel: [ 1250.855102] ata6.00: configured for UDMA/133
> Dec 23 22:33:24 sigma kernel: [ 1250.855121] sd 5:0:0:0: [sda] tag#30 FAILED
> Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> Dec 23 22:33:24 sigma kernel: [ 1250.855126] sd 5:0:0:0: [sda] tag#30 Sense
> Key : Medium Error [current] 
> Dec 23 22:33:24 sigma kernel: [ 1250.855130] sd 5:0:0:0: [sda] tag#30 Add.
> Sense: Unrecovered read error - auto reallocate failed
> Dec 23 22:33:24 sigma kernel: [ 1250.855135] sd 5:0:0:0: [sda] tag#30 CDB:
> Read(10) 28 00 01 2b 96 10 00 00 08 00
> Dec 23 22:33:24 sigma kernel: [ 1250.855139] print_req_error: I/O error, dev
> sda, sector 19633680
> Dec 23 22:33:24 sigma kernel: [ 1250.855162] ata6: EH complete
> 
> They happen every time the system experiences slow reads. Now, I did some
> research and I've read some possible causes like a bad SATA cable or a
> malfunctioning HDD or PSU. I booted from a Debian installer on an USB stick
> and I ran fsck.ext4 to check the disk and it printed the partition was clean.

It's true a bad cable can cause this, but you swapped cables,
so:

Back up the data immediately; this disk is failing.

If it is under warranty, you'll get a replacement. That can take
weeks, though, so you should go buy another disk today.

Sorry.

-dsr-

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Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0 action  0x0 Heladu <helaheladu38@gmail.com> - 2021-12-23 23:10 +0100
  Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-12-23 23:40 +0100
    Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0 action 0x0 rhkramer@gmail.com - 2021-12-24 16:40 +0100
      Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-12-24 17:30 +0100
      Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 David Christensen <dpchrist@holgerdanske.com> - 2021-12-24 21:10 +0100
      Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0 action 0x0 gene heskett <gheskett@shentel.net> - 2021-12-24 22:30 +0100
    Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 Heladu <helaheladu38@gmail.com> - 2021-12-24 19:10 +0100
      Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-12-24 20:20 +0100
  Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 Dan Ritter <dsr@randomstring.org> - 2021-12-24 00:40 +0100
    Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 Heladu <helaheladu38@gmail.com> - 2021-12-24 19:10 +0100
      Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 David Christensen <dpchrist@holgerdanske.com> - 2021-12-24 21:30 +0100
        Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0 action 0x0 "Thomas Schmitt" <scdbackup@gmx.net> - 2021-12-24 22:00 +0100
          Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 David Christensen <dpchrist@holgerdanske.com> - 2021-12-25 01:20 +0100
  Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 David Christensen <dpchrist@holgerdanske.com> - 2021-12-24 00:50 +0100
    Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0 action 0x0 Glenn <ve9gj@napan.com> - 2021-12-24 16:10 +0100
  Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 James Dutton <james.dutton@gmail.com> - 2021-12-24 16:30 +0100
    Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0 action 0x0 Stefan Monnier <monnier@iro.umontreal.ca> - 2021-12-24 18:10 +0100
    Re: Slow disk reads - exception Emask 0x0 SAct 0x6b0000 SErr 0x0  action 0x0 Heladu <helaheladu38@gmail.com> - 2021-12-24 19:10 +0100

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