Red Hat Bugzilla – Bug 467595
File System Corruption Writing on SD Memory Card (fat)
Last modified: 2009-12-18 01:36:01 EST
Description of problem:
I write some files to SD Memory Cart (fat filesystem). When finish, all filesystem was corrputed... a lot of garbage
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Insert a SD Memory card in computer card readers
2. Write some files to it
3. Umount the file system
4. Mount again and see the garbage
I get a lot of garbage in filesystem
My beauty files
Tested on Toshiba Satelite with Athlon 64 X2
This has certainly nothing to do with gvfs, we don't do lowlevel access to the device. Could be a bug in SD card driver, reassinging to kernel (please triage).
Are you using a sdhci-based card reader? I've seen occasional corruption with such a reader on my notebook. I've not played much with it much since I have a faster USB reader, but I think the problem was the driver forcing the reader into DMA mode when it only works properly in PIO.
This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.
More information and reason for this action is here:
Created attachment 332902 [details]
Hardware, Dmesg describing hardware that results in corrupt filesystem
I have been able to corroborate this issue.
Using a generic 4GB Rockchip SD memory formatted fat32 either with XP or mkdosfs, Linux and dosfstools (dosfsck, mkdosfs) eventually destroy the file system. Exact same hardware under XP SP2 has no issues.
Hardware, dmesg info attached as awfl.txt
22.214.171.124-170.2.24.fc10.x86_64 #1 SMP, ASUS A8V MB, AMD3200
To reproduce, format drive either in XP or Linux X86_64. dosfsck will often immediately fail, first by showing two inconsistent fat tables. If not, copying many files will eventually destroy fs.
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FYI: This issue is still present in vanilla, clean install Fedora 12 x86_64.
Under Win XP SP2, Rockchip formats. File copies no problems. Filesystem checks clean.
Under Linux, disk mounts, files can be read without error.
Unmount disk. fsck reports two FATS different. fsck reports massive FAT table errors.
(noticed but unverified: from Linux, files seem to copy correctly and are usable, but the disk appears to be corrupted at unmount)
Fedora 10 changed to end-of-life (EOL) status on 2009-12-17. Fedora 10 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.
If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version.
Thank you for reporting this bug and we are sorry it could not be fixed.