On Monday, October 15, 2001 12:35:01 AM +0200 Erik Tews <[EMAIL PROTECTED]> wrote: > Hi > > I saw that there is a reiserfs-fix in 2.4.12-ac2. What kind of bug is > that? I did not notice anybody here talking about a buffer-problem. > This is a bug that Vladimir found. In the pure linus kernel, this code works (non reiserfs specific). lock_buffer(bh) ; bh->b_end_io = end_buffer_io_async ; submit_bh(bh) ; In alan's kernel, end_buffer_io_async does a put_bh on the buffer head, leading to errors about brelsing buffers already free, and general corruption if you don't get_bh(bh) before calling submit_bh. Linus kernels used to work this way too, but the change hasn't been merged into -ac yet. Anyway, somewhere during 2.4.10-ac we merged a change that used the linus style async end io handlers, there were a few reports over the last few weeks. -chris
