Matthew Dillon wrote: > > :This is for 2.2-RELEASE. I have a 2.5" drive in an external USB > :enclosure with one big Hammer filesystem on it. The disk is ~75GB. > :When the daily cronjob to cleanup hammer runs it fails with these > :errors: > : > :Thanks, > :Joe > > I'm not sure what's going on here. HAMMER does issue a synchronize > cache > op but it should be ignoring the error. Maybe the recovery from the > unsupported synchronize cache op is causing a later write op to fail.
I think there are devices that claim to support this operation but in reality do not support it. Or something like this. FreeBSD has a quirk file for this. For example my Seagate USB disk always prints those synchronize cache failure messages on FreeBSD. Look out for NO_SYNCHRONIZE_CACHE in this file: http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/usb/storage/umass.c?rev=1.9 Regards, Michael
