Hi Jan, On Tue, Apr 08, 2008 at 02:11:49PM +0200, Jan Kara wrote: > Hello, > > attached is a jumbo patch that reverses locking order of transaction > start and page lock in ext3 and rewrites handling of ordered data mode in > JBD and ext3. Note that the patch will break compilation of ext4 and OCFS2. > The patch survives LTP run on my test machine so it shouldn't eat your data > immediately but bugs are of course possible... > I'm very interested in any results (both positive and negative) you could > get with it :). Thanks for testing it. > > Honza > > PS: CCing also linux-ext4 list in case there are some other interested > testers. Next on my todo list is to port this for ext4... No luck for my testcase, similar fsync behaviour taking several seconds: vim D 0000000000000000 0 4088 4036 ffff81017a143da8 0000000000000086 0000000000000000 ffffffff80236808 ffff81022f272830 ffff81022f1ca730 ffff81022f272a70 0000000600000001 00000000ffffffff 0000000000000003 0000000000000000 0000000000000000 Call Trace: [<ffffffff80236808>] lock_timer_base+0x26/0x4b [<ffffffff802f8c00>] log_wait_commit+0x9f/0xed [<ffffffff8023f7b1>] autoremove_wake_function+0x0/0x2e [<ffffffff802f4dbf>] journal_stop+0x165/0x18d [<ffffffff8029a7d9>] __writeback_single_inode+0x17f/0x29d [<ffffffff8023f7b1>] autoremove_wake_function+0x0/0x2e [<ffffffff8029b10a>] sync_inode+0x24/0x32 [<ffffffff802e5602>] ext3_sync_file+0x8a/0x9c [<ffffffff8029d532>] do_fsync+0x52/0xa4 [<ffffffff8029d5a7>] __do_fsync+0x23/0x36 [<ffffffff8020b0ab>] system_call_after_swapgs+0x7b/0x80 -- 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
