bugThe GNU Hurd - Bugs: bug #25961, fatfs truncating files


bug #25961: fatfs truncating files

Submitter:  Thomas Schwinge <tschwinge>
Submitted:  Sun 22 Mar 2009 12:10:03 PM UTC
Category:  Hurd Servers Severity:  3 - Normal
Priority:  5 - Normal Item Group:  None
Status:  None Privacy:  Public
Assigned to:  None Originator Name: 
Open/Closed:  Open Reproducibility:  Every Time
Size (loc):  None Planned Release:  None
Effort:  0.00
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Sun 22 Mar 2009 12:10:03 PM UTC, original submission:  

In a QEMU system, accessing the same file through ext2fs (backed by a disk partiton image file) and fatfs (on-the-fly generated by QEMU from a directory hierarchy), these files generally are reported by cmp to differ at ``char 8193''.  Copying such a file off of the fatfs will result in a bus error and the file being truncated to 32768 bytes.

The problem is likely to be in fatfs, as GRUB can successfully access and load files off of the QEMU-generated fatfs.

Thomas Schwinge <tschwinge>
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