On Thu, Jan 13, 2011 at 02:22:22PM -0600, Jason Wessel wrote: > > That is interesting indeed. While I am running a substantially > older kernel ( 2.6.35-24-generic #42-Ubuntu 10.10 ). I was seeing a > consistent problem where if you pulled the power cord while the > system was under heavy I/O load, you could no longer run sync. The > jbd2 process just kept on running forever continuously. Shutdown > was impossible to because vfs unmount blocked (hold power key for 4+ > seconds...). Yeah, there were two separate bugs that have been addressed recently; both were in the generic VFS and writeback code. One was a fix to do more efficient forced writeouts at umount time. The other was a fix so that if new dirty pages are continuously being created (by having processes always writing more pages, those dastards :-), to make sync stop by only having it write the pages that were dirty at the time when the sync was initiated. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
