Re: UFS2 fsck Question (semantics of -p)

2006-09-04 Thread Can Sar
We ran our experiment on top of a very simple RAM disk which does not have any caches or anything of that sort. The dmesg log is at http://keeda.stanford.edu/dmesg The resultant images are at: http://keeda.stanford.edu/ufs-umount-image http://keeda.stanford.edu/ufs-mount-sync-image If you

Re: UFS2 fsck Question (semantics of -p)

2006-08-29 Thread Chuck Swiger
Can Sar wrote: [ ... ] Would you consider it an error if the -p option does not fix inconsistencies caused by a simple power failure, without any hardware or software corruption? You're asking an interesting question, but the issue of data integrity depends not only on the software which

UFS2 fsck Question (semantics of -p)

2006-08-28 Thread Can Sar
Hi, I work on a project to automatically (by dynamically running the system) find crash recovery errors in storage systems and we are beginning to do some preliminary checking of FreeBSD. We found an error where on power failure the disk can get corrupted even after an operation has