On Fri, 2008-02-29 at 19:10 +0000, Bryn M. Reeves wrote: > Greg Hudson wrote: > > Nope, that never made it go away. I'm not sure in what situations > > flushing write buffers would have any effect. If I had a way to throw > > away the read-only page cache and force a file reload from disk, I would > > expect that to eliminate the visible effect of the corruption; at the > > moment the only reliable way I know how to do that is to reboot. > To free pagecache: > echo 1 > /proc/sys/vm/drop_caches Thank you! Verified that freeing the page cache causes the apparently-corrupted file's md5sum to revert to the correct value: [Abbreviated diff output:] --- /tmp/sum.pre 2008-02-29 14:30:29.000000000 -0500 +++ /tmp/sum.post 2008-02-29 14:30:32.000000000 -0500 -3e497fef20ce899c5621dcfbcbfec9a3 /tmp/test/krb5-1.6.dfsg/src/windows/cns/kerbnet.hlp +e9725c38b630515dc304a26bde28fa51 /tmp/test/krb5-1.6.dfsg/src/windows/cns/kerbnet.hlp root@linux-build-10:~# md5sum /tmp/test/krb5-1.6.dfsg/src/windows/cns/kerbnet.hlp e9725c38b630515dc304a26bde28fa51 /tmp/test/krb5-1.6.dfsg/src/windows/cns/kerbnet.hlp root@linux-build-10:~# echo 1 > /proc/sys/vm/drop_caches root@linux-build-10:~# md5sum /tmp/test/krb5-1.6.dfsg/src/windows/cns/kerbnet.hlp 3e497fef20ce899c5621dcfbcbfec9a3 /tmp/test/krb5-1.6.dfsg/src/windows/cns/kerbnet.hlp _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
