Hi Mike, On Sun, Feb 14, 2016 at 12:23:16AM +0500, Михаил Гаврилов wrote: > Sorry, I have not yet had time to apply your patch. > > And get hang again when launch web browser. > > Here new logs: http://btrfs.sy24.ru/kernel-sysrqw-btrfscleaner770blocked-3.txt
The logs show, every hung process is waiting for fs tree root's WRITE_LOCK, but someone who's holding the WRITE_LOCK is not reflected here. Only one suspicious process is "Chrome_FileThre D ffff8807fe1d7a18 10360 22486 2826 0x00000000" it's also waiting on btrfs_tree_lock(), but I can't tell whether it waits for the fs tree root node's lock or the children node's lock. Hmm, sorry for not being helpful, but I was wondering if this also occurs on the latest btrfs(4.5) or is it possible to give it a shot? The best result is that it's been fixed by one commit in 4.5. > > Addition info: when btrfs partition hangs also hang GUI it is normal? > For grab logs I switch to tty3 (Ctrl - Alt - F3) I'm afraid the answer is yes because GUI needs to read files (like config files) from the underlying partition. Thanks, -liubo > > > > -- > Best Regards, > Mike Gavrilov. > > > 2016-02-13 1:34 GMT+05:00 Liu Bo <bo.li....@oracle.com>: > > On Sat, Feb 13, 2016 at 12:15:08AM +0500, Михаил Гаврилов wrote: > >> 2016-02-12 8:22 GMT+05:00 Liu Bo <bo.li....@oracle.com>: > >> > You can try it on your 4.2.3 kernel or the latest 4.5, but I guess it > >> > doesn't not fix the real deadlock you're hitting... > >> > >> It means it is not final patch? you continue investigate problem? Can > >> I help you? > > > > Yeah, it's not the final patch, you can apply it and see if the deadlock > > will happen again. > > > > Unless we can get a way to reproduce it, I'm afraid there's little things > > we can do here. > > > > Thanks, > > > > -liubo -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
