On Tue, 2011-08-30 at 14:27 +0800, Miao Xie wrote: > > > > Unfortunately it results in freeze of system and I cannot give more > > details. Sometimes it happens not from fcron but then it does not result > > in freeze (???). > > Could you give me the method to reproduce it? > > Thanks > Miao
Sorry for spamming in this thread but I'm trying to post my findings in hope that somebody will understand what's going on. Recent crash gave some valuable information IMHO: 1. I started the autocompletion of path in zsh 2. At some point the zsh hanged. In ps the process was listed as runnable 3. Any access to root volume (the one that zsh was trying to readdir) finished in hang. 4. I was able to access the child volume (/home) 5. After some time the bug is hit. At this time strange things happens (screen freeze etc.). I guess that there is some strange interaction between KMS, X and now-hanged composite manager Next time it happend (also during listing root directory of volume 0) I observed the following thing - I can log out and unmount home but the volume 0 remains busy and cannot be unmounted. Things to consider: - It is not enabled/disabled by any mount option - Is it triggered when the parent volume (say volume 0) and child volume are both mounted? - Which case is it failing (I've tried to add printk but I cannot find the option in printk to print u64) - Why it happens only during night? Regards -- 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
