Excerpts from Cheng Shao's message of 2011-04-18 17:49:29 -0400: > Hi there, > > I'm periodically having issues with btrfs running in a Ubuntu VM using > VirtualBox. After the VM has been running for a while (a couple days), > any write operation seems getting stuck. The read seems totally fine. > I tried a simple dd of a 4M file and it got stuck after writing 131K > worth of data. > > I don't know if this is btrfs related, or it is due to some bug in > VritualBox. Could you guys provide information on how to debug this > (collecting logs, getting dumps etc.)? Thanks a lot! Which kernel are you running? Definitely look for kernel messages (run dmesg etc). If there are no crashes or related messages you can run sysrq-t and send the output and we can look for the deadlock. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
