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rkars

Member

Registered: 2022-10-19

Posts: 23

Copying Files to an exfat drive causes them to get corrupted

If i try to transfer any file to an exfat drive they get corrupted, this happens both in dolphin, using cp or mv in terminal. The file copies extremely fast (like a 5gb file in a few seconds) and shows up as 5gb, if i unplug and plug the usb drive back in the file shows up as 3gb, sha256sum also shows different results, This happens with every exfat drive i've tried

dmesg logs:

[ 7889.891945] device offline error, dev sdk, sector 7068336 op 0x1:(WRITE) flags 0x4800 phys_seg 30 prio class 2
[ 7889.891948] buffer_io_error: 1415866 callbacks suppressed
[ 7889.891949] Buffer I/O error on dev sdk1, logical block 883286, lost async page write
[ 7889.891953] Buffer I/O error on dev sdk1, logical block 883287, lost async page write
[ 7889.891955] Buffer I/O error on dev sdk1, logical block 883288, lost async page write
[ 7889.891957] Buffer I/O error on dev sdk1, logical block 883289, lost async page write
[ 7889.891958] Buffer I/O error on dev sdk1, logical block 883290, lost async page write
[ 7889.891960] Buffer I/O error on dev sdk1, logical block 883291, lost async page write
[ 7889.891961] Buffer I/O error on dev sdk1, logical block 883292, lost async page write
[ 7889.891963] Buffer I/O error on dev sdk1, logical block 883293, lost async page write
[ 7889.891965] Buffer I/O error on dev sdk1, logical block 883294, lost async page write
[ 7889.891967] Buffer I/O error on dev sdk1, logical block 883295, lost async page write
[ 7889.891981] device offline error, dev sdk, sector 8846064 op 0x1:(WRITE) flags 0x104000 phys_seg 30 prio class 2
[ 7889.892043] device offline error, dev sdk, sector 8846304 op 0x1:(WRITE) flags 0x104000 phys_seg 30 prio class 2
[ 7889.892060] device offline error, dev sdk, sector 7068576 op 0x1:(WRITE) flags 0x4800 phys_seg 30 prio class 2
[ 7889.892106] device offline error, dev sdk, sector 8846544 op 0x1:(WRITE) flags 0x104000 phys_seg 30 prio class 2
[ 7889.892122] device offline error, dev sdk, sector 7068816 op 0x1:(WRITE) flags 0x4800 phys_seg 30 prio class 2
[ 7889.892166] device offline error, dev sdk, sector 8846784 op 0x1:(WRITE) flags 0x104000 phys_seg 30 prio class 2
[ 7889.892180] device offline error, dev sdk, sector 7069056 op 0x1:(WRITE) flags 0x4800 phys_seg 30 prio class 2
[ 7889.892223] device offline error, dev sdk, sector 8847024 op 0x1:(WRITE) flags 0x104000 phys_seg 30 prio class 2
[ 7889.892237] device offline error, dev sdk, sector 7069296 op 0x1:(WRITE) flags 0x4800 phys_seg 30 prio class 2

[ 7670.474498] usb 1-3: new high-speed USB device number 9 using xhci_hcd
[ 7670.670753] usb 1-3: New USB device found, idVendor=0781, idProduct=5575, bcdDevice= 1.00
[ 7670.670756] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 7670.670758] usb 1-3: Product: Cruzer Glide
[ 7670.670759] usb 1-3: Manufacturer: SanDisk
[ 7670.670760] usb 1-3: SerialNumber: 4C530000230327101531
[ 7670.684186] usb-storage 1-3:1.0: USB Mass Storage device detected
[ 7670.684323] scsi host15: usb-storage 1-3:1.0
[ 7671.687211] scsi 15:0:0:0: Direct-Access     SanDisk  Cruzer Glide     1.00 PQ: 0 ANSI: 6
[ 7671.687380] sd 15:0:0:0: Attached scsi generic sg10 type 0
[ 7671.688001] sd 15:0:0:0: [sdk] 61341696 512-byte logical blocks: (31.4 GB/29.3 GiB)
[ 7671.689849] sd 15:0:0:0: [sdk] Write Protect is off
[ 7671.689852] sd 15:0:0:0: [sdk] Mode Sense: 43 00 00 00
[ 7671.690365] sd 15:0:0:0: [sdk] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[ 7671.716788]  sdk: sdk1 sdk2

Last edited by rkars (2023-10-15 00:04:15)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,643

Re: Copying Files to an exfat drive causes them to get corrupted

Did you dismount the drive before you unplugged it?

Edit:  Hint -- no you did not.

Last edited by ewaller (2023-10-15 00:20:47)

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jonno2002

Member

Registered: 2016-11-21

Posts: 868

Re: Copying Files to an exfat drive causes them to get corrupted

refer to my post here for how to fix "file copies extremely fast "