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Adel Ahmed
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Joined: 21 Sep 2012
Posts: 1603
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 Posted: Sun Mar 15, 2020 10:17 am Post subject: i/o errors with 64 gb card |
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I have recently purchased a new 64 gb card for use on my gentoo laptop
things go smoothly until i reach about 58% of the space
that's when things go wrong, after reaching this space I can write around 50 MBs or so before the file system is read only
I see the following in journalctl around the tiem of the problem:
| Code: | Mar 15 12:07:24 cherry kernel: mmc2: Skipping voltage switch
Mar 15 12:07:24 cherry kernel: mmc2: error -110 doing runtime resume
Mar 15 12:07:24 cherry kernel: mmcblk2: error -110 requesting status
Mar 15 12:09:10 cherry kernel: mmc2: Skipping voltage switch
Mar 15 12:09:10 cherry kernel: mmc2: error -110 doing runtime resume
Mar 15 12:09:10 cherry kernel: mmcblk2: error -110 requesting status
Mar 15 12:09:13 cherry kernel: mmc2: Skipping voltage switch
Mar 15 12:09:13 cherry kernel: mmc2: tried to HW reset card, got error -110
Mar 15 12:09:13 cherry kernel: mmcblk2: recovery failed!
Mar 15 12:09:13 cherry kernel: print_req_error: I/O error, dev mmcblk2, sector 2088
Mar 15 12:09:13 cherry kernel: Buffer I/O error on dev mmcblk2p1, logical block 5, lost async page write
Mar 15 12:09:13 cherry kernel: mmcblk2: error -110 requesting status
Mar 15 12:09:13 cherry kernel: mmcblk2: recovery failed!
Mar 15 12:09:13 cherry kernel: print_req_error: I/O error, dev mmcblk2, sector 67111016
Mar 15 12:09:13 cherry kernel: Buffer I/O error on dev mmcblk2p1, logical block 8388621, lost async page write
Mar 15 12:09:13 cherry kernel: mmcblk2: error -110 requesting status
Mar 15 12:09:13 cherry kernel: mmcblk2: recovery failed!
Mar 15 12:09:13 cherry kernel: print_req_error: I/O error, dev mmcblk2, sector 83888384
Mar 15 12:09:13 cherry kernel: Buffer I/O error on dev mmcblk2p1, logical block 10485792, lost async page write
Mar 15 12:09:13 cherry kernel: mmcblk2: error -110 requesting status
Mar 15 12:09:28 cherry kernel: mmc2: Skipping voltage switch
Mar 15 12:09:28 cherry kernel: mmc2: error -110 doing runtime resume
Mar 15 12:09:28 cherry kernel: mmcblk2: error -110 requesting status |
I'm using ext4 at the time(i tried btrfs and i get the same problem)
I never had this probm with my old 32 GB card(maybe this reader cannot read mroe than 32GB?)
kernel config:
https://pastebin.com/FsPD8i0y
lsusb -v:
https://pastebin.com/TvnxYtS7
When prchasing the laptop, the specifications said it can read memory carsd up to 64GB |
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 54803
Location: 56N 3W
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| Posted: Sun Mar 15, 2020 11:07 am Post subject: |
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Adel Ahmed,
Maybe its not a real 64GB card. Its just labelled 64GB and programmed to advertise 64GB?
If its a no-name card, it may just be faulty.
You can judge the quality by the price you paid for it. If it looked too good to be true, it probably was.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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fturco
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Joined: 08 Dec 2010
Posts: 1181
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| Posted: Sun Mar 15, 2020 11:40 am Post subject: |
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| NeddySeagoon wrote: | | Maybe its not a real 64GB card. Its just labelled 64GB and programmed to advertise 64GB? |
There are tools for detecting fake flash drives. On Gentoo one can use sys-block/f3, for example. Before using them, users should back up important data from their flash drive because it could be lost. |
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Adel Ahmed
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Joined: 21 Sep 2012
Posts: 1603
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| Posted: Wed Mar 18, 2020 10:39 am Post subject: |
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if i dd from /dev/urandom to the mmc and it fills up to 100%
maybe the probelm is with ffmpeg, I am investigating the issue |
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fturco
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Joined: 08 Dec 2010
Posts: 1181
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| Posted: Wed Mar 18, 2020 11:00 am Post subject: |
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| Adel Ahmed wrote: | | if i dd from /dev/urandom to the mmc and it fills up to 100% |
I think you should try to create a random 64 GB file on your system, checksum it, transfer it with dd to the flash drive, read it back, and compare checksums.
If you only write to the flash drive without reading it back, it may lie to you. |
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Adel Ahmed
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Joined: 21 Sep 2012
Posts: 1603
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| Posted: Mon Mar 23, 2020 11:16 am Post subject: |
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it works just fine
I can also move files just fine, I think it's just ffmpeg |
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