On Wed, Nov 15, 2006 at 11:29:57AM -0800, Andrew Morton wrote: > Oh well. If it's a deadlock (this is not clear from your description) then > please gather backtraces of all affected tasks. > > There is an ab/ba deadlock with journal_start() and lock_page(), iirc. > Chris and I had a look at that a while back and collapsed in exhaustion - > it isn't pretty. This should be the page fault/journal lock inversion stuff Nick was working on. His patchset had a pretty good description of the problems, Badari can also dig through the novell/ltc bugzillas for vmmstress. Should be LTC9358. Hopefully Nick's patches will address all of this. sles9 had a partial solution for the mmap deadlock, I think it was to dirty the inode at a later time. For some reason, I thought this workload was passing in later kernels... -chris - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
