Dear Devs, I have x4 4TB HDDs formatted with:
mkfs.btrfs -L bu-16TB_0 -d raid1 -m raid1 /dev/sd[cdef] /etc/fstab mounts with the options: noatime,noauto,space_cache,inode_cache All on kernel 3.8.13. Upon using rsync to copy some heavily hardlinked backups from ReiserFS, I've so far had various: "INFO: task rsync:11022 blocked for more than 180 seconds" and one: "INFO: task btrfs-endio-wri:10816 blocked for more than 180 seconds" Further detail listed below. What's the fix or any debug worthwhile? Regards, Martin x1 of these: kernel: INFO: task rsync:11022 blocked for more than 180 seconds. kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kernel: rsync D 0000000000000000 0 11022 11021 0x00000000 kernel: ffff88012b0ae360 0000000000000082 ffffffff815f1400 00000000000120c0 kernel: 0000000000004000 ffff880108a67fd8 0000000000000000 ffffffff810312ac kernel: ffff8801115ae748 ffffffff810e3bad ffff8801115ae748 0000000000000081 kernel: Call Trace: kernel: [<ffffffff810312ac>] ? ns_capable+0x33/0x46 kernel: [<ffffffff810e3bad>] ? generic_permission+0x19e/0x1fe kernel: [<ffffffff810e427d>] ? __inode_permission+0x2f/0x6d kernel: [<ffffffff810e3d63>] ? lookup_fast+0x39/0x23c kernel: [<ffffffff811f464c>] ? wait_current_trans.isra.29+0xa9/0xd8 kernel: [<ffffffff810427f0>] ? abort_exclusive_wait+0x79/0x79 kernel: [<ffffffff811f5b59>] ? start_transaction+0x3de/0x408 kernel: [<ffffffff810f013c>] ? setattr_copy+0x8c/0xcb kernel: [<ffffffff811ff22b>] ? btrfs_dirty_inode+0x24/0xa4 kernel: [<ffffffff810effe8>] ? notify_change+0x1f0/0x2b8 kernel: [<ffffffff810ff680>] ? utimes_common+0x10c/0x135 kernel: [<ffffffff810df445>] ? cp_new_stat+0x10d/0x11f kernel: [<ffffffff810ff79a>] ? do_utimes+0xf1/0x129 kernel: [<ffffffff810df7d9>] ? sys_newlstat+0x23/0x2b kernel: [<ffffffff810ff89b>] ? sys_utimensat+0x64/0x6b kernel: [<ffffffff81431652>] ? system_call_fastpath+0x16/0x1b x2 of these: kernel: INFO: task rsync:11022 blocked for more than 180 seconds. kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kernel: rsync D 0000000000000000 0 11022 11021 0x00000000 kernel: ffff88012b0ae360 0000000000000082 ffffffff815f1400 00000000000120c0 kernel: 0000000000004000 ffff880108a67fd8 0000000000000000 ffffffff810e3d63 kernel: ffff88012b0ae360 ffffffff810e3b65 ffff88001e959ef8 0000000000000081 kernel: Call Trace: kernel: [<ffffffff810e3d63>] ? lookup_fast+0x39/0x23c kernel: [<ffffffff810e3b65>] ? generic_permission+0x156/0x1fe kernel: [<ffffffff810e427d>] ? __inode_permission+0x2f/0x6d kernel: [<ffffffff810e3d63>] ? lookup_fast+0x39/0x23c kernel: [<ffffffff811f464c>] ? wait_current_trans.isra.29+0xa9/0xd8 kernel: [<ffffffff810427f0>] ? abort_exclusive_wait+0x79/0x79 kernel: [<ffffffff811f5b59>] ? start_transaction+0x3de/0x408 kernel: [<ffffffff810f013c>] ? setattr_copy+0x8c/0xcb kernel: [<ffffffff811ff22b>] ? btrfs_dirty_inode+0x24/0xa4 kernel: [<ffffffff810effe8>] ? notify_change+0x1f0/0x2b8 kernel: [<ffffffff810ff680>] ? utimes_common+0x10c/0x135 kernel: [<ffffffff810df445>] ? cp_new_stat+0x10d/0x11f kernel: [<ffffffff810ff79a>] ? do_utimes+0xf1/0x129 kernel: [<ffffffff810df7d9>] ? sys_newlstat+0x23/0x2b kernel: [<ffffffff810ff89b>] ? sys_utimensat+0x64/0x6b kernel: [<ffffffff81431652>] ? system_call_fastpath+0x16/0x1b x7 of these: kernel: INFO: task rsync:11022 blocked for more than 180 seconds. kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kernel: rsync D 0000000000000000 0 11022 11021 0x00000000 kernel: ffff88012b0ae360 0000000000000082 ffffffff815f1400 00000000000120c0 kernel: 0000000000004000 ffff880108a67fd8 ffff88010d9270c9 ffffffff810e520b kernel: 00007fffd5adb458 ffffffff811e2fba ffff880108a67d88 ffffffff810e3411 kernel: Call Trace: kernel: [<ffffffff810e520b>] ? path_init+0x1da/0x32c kernel: [<ffffffff811e2fba>] ? reserve_metadata_bytes.isra.59+0x7b/0x741 kernel: [<ffffffff810e3411>] ? complete_walk+0x85/0xd6 kernel: [<ffffffff810ecfbc>] ? __d_lookup+0x60/0x122 kernel: [<ffffffff811f464c>] ? wait_current_trans.isra.29+0xa9/0xd8 kernel: [<ffffffff810427f0>] ? abort_exclusive_wait+0x79/0x79 kernel: [<ffffffff811f5b59>] ? start_transaction+0x3de/0x408 kernel: [<ffffffff810e5b96>] ? kern_path_create+0x78/0x110 kernel: [<ffffffff81200836>] ? btrfs_link+0x75/0x185 kernel: [<ffffffff810e4c11>] ? vfs_link+0x102/0x184 kernel: [<ffffffff810e7e90>] ? sys_linkat+0x16d/0x1c7 kernel: [<ffffffff81431652>] ? system_call_fastpath+0x16/0x1b x1 of these: kernel: INFO: task btrfs-endio-wri:10816 blocked for more than 180 seconds. kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kernel: btrfs-endio-wri D 0000000000000000 0 10816 2 0x00000000 kernel: ffff880129bf4f80 0000000000000046 ffffffff815f1400 00000000000120c0 kernel: 0000000000004000 ffff88010c635fd8 ffff8801294404ea ffff880129440000 Mkernel: 0000000000000000 0000000000000050 0000000000000000 ffff880129e85240 kernel: Call Trace: kernel: [<ffffffff810d2dbf>] ? kmem_cache_alloc+0x3e/0xde kernel: [<ffffffff812077ad>] ? btrfs_put_ordered_extent+0x77/0xb3 kernel: [<ffffffff812077ad>] ? btrfs_put_ordered_extent+0x77/0xb3 kernel: [<ffffffff810d2749>] ? kmem_cache_free+0x53/0xf9 kernel: [<ffffffff811f464c>] ? wait_current_trans.isra.29+0xa9/0xd8 kernel: [<ffffffff810427f0>] ? abort_exclusive_wait+0x79/0x79 kernel: [<ffffffff811f5b59>] ? start_transaction+0x3de/0x408 kernel: [<ffffffff811fc988>] ? btrfs_finish_ordered_io+0x13f/0x2ee kernel: [<ffffffff81034152>] ? usleep_range+0x3e/0x3e kernel: [<ffffffff8121748e>] ? worker_loop+0x15f/0x435 kernel: [<ffffffff8121732f>] ? btrfs_queue_worker+0x258/0x258 kernel: [<ffffffff810420b3>] ? kthread+0xad/0xb5 kernel: [<ffffffff81042006>] ? __kthread_parkme+0x5e/0x5e kernel: [<ffffffff814315ac>] ? ret_from_fork+0x7c/0xb0 kernel: [<ffffffff81042006>] ? __kthread_parkme+0x5e/0x5e -- 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
