Hello. I am reporting a suspected race bug at cleaner_kthread() in btrfs/disk-io.c of Linux 2.6.30.4. I hope this report is helpful. Please examine the report and please let me know your opinion. clear_ktherad() is spawned as a thread by open_ctree(). The function is finished if kthread_should_stop() or root->fs_info->closing becomes non-zero. If clear_kthread() is finished before other thread invoke kthread_stop() for clear_kthread(), the caller of kthread_stop() might have problem (waiting indefinitely). It seems that close_ctree() set fs_info->closing and then kthread_stop(root->fs_info->cleaner_kthread) so that it might result this type of error. Thank you Sincerely Shin Hong -- 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
