Hi guys, I just have the problem again. Now, it happens during the lunch time when the machine was idle. Only the system processes were running. It was not the first time that I saw this problem just after lunch when the machine stayed idle for a long period (+- 1h).
Here is the information requested: /sys/fs/btrfs/$UUID/allocation/data ./bytes_may_use 0 ./bytes_pinned 0 ./bytes_reserved 0 ./bytes_used 36128374784 ./disk_total 37589352448 ./disk_used 36128374784 ./flags 1 ./total_bytes 37589352448 ./total_bytes_pinned 20339560448 ./single/total_bytes 37589352448 ./single/used_bytes 36128374784 /sys/fs/btrfs/$UUID/allocation/metadata ./bytes_may_use 84974452736 ./bytes_pinned 0 ./bytes_reserved 0 ./bytes_used 977354752 ./disk_total 4294967296 ./disk_used 1954709504 ./flags 4 ./total_bytes 2147483648 ./total_bytes_pinned -57851904 ./dup/total_bytes 2147483648 ./dup/used_bytes 977354752 # btrfs fi usage / Overall: Device size: 1.26TiB Device allocated: 39.07GiB Device unallocated: 1.22TiB Device missing: 0.00B Used: 35.29GiB Free (estimated): 1.22TiB (min: 625.93GiB) Data ratio: 1.00 Metadata ratio: 2.00 Global reserve: 320.00MiB (used: 0.00B) Data,single: Size:35.01GiB, Used:33.47GiB /dev/sda6 35.01GiB Metadata,DUP: Size:2.00GiB, Used:932.00MiB /dev/sda6 4.00GiB System,DUP: Size:32.00MiB, Used:16.00KiB /dev/sda6 64.00MiB Unallocated: /dev/sda6 1.22TiB # btrfs fi df / Data, single: total=35.01GiB, used=33.47GiB System, DUP: total=32.00MiB, used=16.00KiB Metadata, DUP: total=2.00GiB, used=932.09MiB GlobalReserve, single: total=320.00MiB, used=0.0 I also saw the following information in `journalctl`: Ago 29 10:25:33 ronanarraes-osd kernel: ------------[ cut here ]------- ----- Ago 29 10:25:33 ronanarraes-osd kernel: WARNING: CPU: 4 PID: 30424 at ../fs/btrfs/extent-tree.c:4303 btrfs_free_reserved_data_space_noquota+0xfe/0x110 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: Modules linked in: fuse nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit af_packet iscsi_ibft iscsi_boot_sysfs msr ip6t_REJECT nf_reject_ipv6 xt_tcpudp nf_ Ago 29 10:25:33 ronanarraes-osd kernel: mei_wdt sysimgblt iTCO_vendor_support i2c_i801 tpm_infineon tpm_tis tpm ioatdma crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw sparse_keymap Ago 29 10:25:33 ronanarraes-osd kernel: CPU: 4 PID: 30424 Comm: kworker/u65:1 Tainted: P O 4.7.1-1-default #1 Ago 29 10:25:33 ronanarraes-osd kernel: Hardware name: Hewlett-Packard HP Z820 Workstation/158B, BIOS J63 v03.65 12/19/2013 Ago 29 10:25:33 ronanarraes-osd kernel: Workqueue: writeback wb_workfn (flush-btrfs-1) Ago 29 10:25:33 ronanarraes-osd kernel: 0000000000000000 ffffffff81393104 0000000000000000 0000000000000000 Ago 29 10:25:33 ronanarraes-osd kernel: ffffffff8107ca1e ffff88100027c800 0000000000001000 ffff88082ff06400 Ago 29 10:25:33 ronanarraes-osd kernel: ffff88100c7af784 0000000000001000 ffff8805bd60f6cc ffffffffa025098e Ago 29 10:25:33 ronanarraes-osd kernel: Call Trace: Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8102ed5e>] dump_trace+0x5e/0x320 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8102f12c>] show_stack_log_lvl+0x10c/0x180 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8102fe41>] show_stack+0x21/0x40 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff81393104>] dump_stack+0x5c/0x78 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8107ca1e>] __warn+0xbe/0xe0 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa025098e>] btrfs_free_reserved_data_space_noquota+0xfe/0x110 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa026d036>] btrfs_clear_bit_hook+0x296/0x380 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa028a755>] clear_state_bit+0x55/0x1d0 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa028aa0d>] __clear_extent_bit+0x13d/0x3f0 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa028b8d2>] extent_clear_unlock_delalloc+0x62/0x280 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa0273722>] run_delalloc_nocow+0x962/0xba0 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa0273cbf>] run_delalloc_range+0x35f/0x3b0 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa028c090>] writepage_delalloc.isra.40+0x100/0x170 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa028e9d3>] __extent_writepage+0xc3/0x340 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa028ee8b>] extent_write_cache_pages.isra.36.constprop.53+0x23b/0x350 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffffa028f4fe>] extent_writepages+0x4e/0x60 [btrfs] Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8123c64d>] __writeback_single_inode+0x3d/0x3b0 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8123ce8a>] writeback_sb_inodes+0x20a/0x440 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8123d147>] __writeback_inodes_wb+0x87/0xb0 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8123d49d>] wb_writeback+0x28d/0x330 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8123dbe2>] wb_workfn+0x222/0x3f0 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff810950ed>] process_one_work+0x1ed/0x4e0 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff81095427>] worker_thread+0x47/0x4c0 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8109affd>] kthread+0xbd/0xe0 Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff816bb71f>] ret_from_fork+0x1f/0x40 Ago 29 10:25:33 ronanarraes-osd kernel: DWARF2 unwinder stuck at ret_from_fork+0x1f/0x40 Ago 29 10:25:33 ronanarraes-osd kernel: Ago 29 10:25:33 ronanarraes-osd kernel: Leftover inexact backtrace: Ago 29 10:25:33 ronanarraes-osd kernel: [<ffffffff8109af40>] ? kthread_worker_fn+0x170/0x170 Ago 29 10:34:51 ronanarraes-osd kernel: ------------[ cut here ]------- ----- Ago 29 10:34:51 ronanarraes-osd kernel: WARNING: CPU: 6 PID: 27335 at ../fs/btrfs/inode.c:9306 btrfs_destroy_inode+0x23f/0x2b0 [btrfs] Ago 29 10:34:51 ronanarraes-osd kernel: Modules linked in: fuse nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit af_packet iscsi_ibft iscsi_boot_sysfs msr ip6t_REJECT nf_reject_ipv6 xt_tcpudp nf_ Ago 29 10:34:51 ronanarraes-osd kernel: mei_wdt sysimgblt iTCO_vendor_support i2c_i801 tpm_infineon tpm_tis tpm ioatdma crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw sparse_keymap Ago 29 10:34:51 ronanarraes-osd kernel: CPU: 6 PID: 27335 Comm: Cache2 I/O Tainted: P W O 4.7.1-1-default #1 Ago 29 10:34:51 ronanarraes-osd kernel: Hardware name: Hewlett-Packard HP Z820 Workstation/158B, BIOS J63 v03.65 12/19/2013 Ago 29 10:34:51 ronanarraes-osd kernel: 0000000000000000 ffffffff81393104 0000000000000000 0000000000000000 Ago 29 10:34:51 ronanarraes-osd kernel: ffffffff8107ca1e 0000000000000000 ffff88071b592a80 ffff881000221800 Ago 29 10:34:51 ronanarraes-osd kernel: 0000000000000000 ffff88071b592a80 00000000ffffff9c ffffffffa027dabf Ago 29 10:34:51 ronanarraes-osd kernel: Call Trace: Ago 29 10:34:51 ronanarraes-osd kernel: [<ffffffff8102ed5e>] dump_trace+0x5e/0x320 Ago 29 10:34:51 ronanarraes-osd kernel: [<ffffffff8102f12c>] show_stack_log_lvl+0x10c/0x180 Ago 29 10:34:51 ronanarraes-osd kernel: [<ffffffff8102fe41>] show_stack+0x21/0x40 Ago 29 10:34:51 ronanarraes-osd kernel: [<ffffffff81393104>] dump_stack+0x5c/0x78 Ago 29 10:34:51 ronanarraes-osd kernel: [<ffffffff8107ca1e>] __warn+0xbe/0xe0 Ago 29 10:34:51 ronanarraes-osd kernel: [<ffffffffa027dabf>] btrfs_destroy_inode+0x23f/0x2b0 [btrfs] Ago 29 10:34:51 ronanarraes-osd kernel: [<ffffffff8121f6d1>] do_unlinkat+0x131/0x310 Ago 29 10:34:51 ronanarraes-osd kernel: [<ffffffff816bb4f6>] entry_SYSCALL_64_fastpath+0x1e/0xa8 Ago 29 10:34:51 ronanarraes-osd kernel: DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x1e/0xa8 Ago 29 10:34:51 ronanarraes-osd kernel: Ago 29 10:34:51 ronanarraes-osd kernel: Leftover inexact backtrace: Ago 29 10:34:51 ronanarraes-osd kernel: ---[ end trace 5774bd3049f78a61 ]--- Ago 29 11:21:19 ronanarraes-osd kernel: ------------[ cut here ]------- ----- Ago 29 11:21:19 ronanarraes-osd kernel: WARNING: CPU: 18 PID: 16759 at ../fs/btrfs/extent-tree.c:4303 btrfs_free_reserved_data_space_noquota+0xfe/0x110 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: Modules linked in: fuse nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit af_packet iscsi_ibft iscsi_boot_sysfs msr ip6t_REJECT nf_reject_ipv6 xt_tcpudp nf_ Ago 29 11:21:19 ronanarraes-osd kernel: mei_wdt sysimgblt iTCO_vendor_support i2c_i801 tpm_infineon tpm_tis tpm ioatdma crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw sparse_keymap Ago 29 11:21:19 ronanarraes-osd kernel: CPU: 18 PID: 16759 Comm: kworker/u65:2 Tainted: P W O 4.7.1-1-default #1 Ago 29 11:21:19 ronanarraes-osd kernel: Hardware name: Hewlett-Packard HP Z820 Workstation/158B, BIOS J63 v03.65 12/19/2013 Ago 29 11:21:19 ronanarraes-osd kernel: Workqueue: writeback wb_workfn (flush-btrfs-1) Ago 29 11:21:19 ronanarraes-osd kernel: 0000000000000000 ffffffff81393104 0000000000000000 0000000000000000 Ago 29 11:21:19 ronanarraes-osd kernel: ffffffff8107ca1e ffff881000221800 0000000000001000 ffff88082ff06400 Ago 29 11:21:19 ronanarraes-osd kernel: ffff8807b11b6784 0000000000001000 ffff8806acb1f73c ffffffffa025098e Ago 29 11:21:19 ronanarraes-osd kernel: Call Trace: Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8102ed5e>] dump_trace+0x5e/0x320 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8102f12c>] show_stack_log_lvl+0x10c/0x180 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8102fe41>] show_stack+0x21/0x40 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff81393104>] dump_stack+0x5c/0x78 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8107ca1e>] __warn+0xbe/0xe0 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa025098e>] btrfs_free_reserved_data_space_noquota+0xfe/0x110 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa026d036>] btrfs_clear_bit_hook+0x296/0x380 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa028a755>] clear_state_bit+0x55/0x1d0 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa028aa0d>] __clear_extent_bit+0x13d/0x3f0 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa028b8d2>] extent_clear_unlock_delalloc+0x62/0x280 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa0272c19>] cow_file_range+0x299/0x440 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa0273cf2>] run_delalloc_range+0x392/0x3b0 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa028c090>] writepage_delalloc.isra.40+0x100/0x170 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa028e9d3>] __extent_writepage+0xc3/0x340 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa028ee8b>] extent_write_cache_pages.isra.36.constprop.53+0x23b/0x350 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffffa028f4fe>] extent_writepages+0x4e/0x60 [btrfs] Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8123c64d>] __writeback_single_inode+0x3d/0x3b0 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8123ce8a>] writeback_sb_inodes+0x20a/0x440 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8123d147>] __writeback_inodes_wb+0x87/0xb0 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8123d49d>] wb_writeback+0x28d/0x330 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8123dbe2>] wb_workfn+0x222/0x3f0 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff810950ed>] process_one_work+0x1ed/0x4e0 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff81095427>] worker_thread+0x47/0x4c0 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8109affd>] kthread+0xbd/0xe0 Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff816bb71f>] ret_from_fork+0x1f/0x40 Ago 29 11:21:19 ronanarraes-osd kernel: DWARF2 unwinder stuck at ret_from_fork+0x1f/0x40 Ago 29 11:21:19 ronanarraes-osd kernel: Ago 29 11:21:19 ronanarraes-osd kernel: Leftover inexact backtrace: Ago 29 11:21:19 ronanarraes-osd kernel: [<ffffffff8109af40>] ? kthread_worker_fn+0x170/0x170 Ago 29 11:21:19 ronanarraes-osd kernel: ---[ end trace 5774bd3049f78a62 ]--- Ago 29 12:06:07 ronanarraes-osd kernel: ------------[ cut here ]------- ----- Ago 29 12:06:07 ronanarraes-osd kernel: WARNING: CPU: 3 PID: 27335 at ../fs/btrfs/inode.c:9306 btrfs_destroy_inode+0x23f/0x2b0 [btrfs] Ago 29 12:06:07 ronanarraes-osd kernel: Modules linked in: fuse nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit af_packet iscsi_ibft iscsi_boot_sysfs msr ip6t_REJECT nf_reject_ipv6 xt_tcpudp nf_ Ago 29 12:06:07 ronanarraes-osd kernel: mei_wdt sysimgblt iTCO_vendor_support i2c_i801 tpm_infineon tpm_tis tpm ioatdma crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw sparse_keymap Ago 29 12:06:07 ronanarraes-osd kernel: CPU: 3 PID: 27335 Comm: Cache2 I/O Tainted: P W O 4.7.1-1-default #1 Ago 29 12:06:07 ronanarraes-osd kernel: Hardware name: Hewlett-Packard HP Z820 Workstation/158B, BIOS J63 v03.65 12/19/2013 Ago 29 12:06:07 ronanarraes-osd kernel: 0000000000000000 ffffffff81393104 0000000000000000 0000000000000000 Ago 29 12:06:07 ronanarraes-osd kernel: ffffffff8107ca1e 0000000000000000 ffff88071b5eeb00 ffff881000221800 Ago 29 12:06:07 ronanarraes-osd kernel: 0000000000000000 ffff88071b5eeb00 00000000ffffff9c ffffffffa027dabf Ago 29 12:06:07 ronanarraes-osd kernel: Call Trace: Ago 29 12:06:07 ronanarraes-osd kernel: [<ffffffff8102ed5e>] dump_trace+0x5e/0x320 Ago 29 12:06:07 ronanarraes-osd kernel: [<ffffffff8102f12c>] show_stack_log_lvl+0x10c/0x180 Ago 29 12:06:07 ronanarraes-osd kernel: [<ffffffff8102fe41>] show_stack+0x21/0x40 Ago 29 12:06:07 ronanarraes-osd kernel: [<ffffffff81393104>] dump_stack+0x5c/0x78 Ago 29 12:06:07 ronanarraes-osd kernel: [<ffffffff8107ca1e>] __warn+0xbe/0xe0 Ago 29 12:06:07 ronanarraes-osd kernel: [<ffffffffa027dabf>] btrfs_destroy_inode+0x23f/0x2b0 [btrfs] Ago 29 12:06:07 ronanarraes-osd kernel: [<ffffffff8121f6d1>] do_unlinkat+0x131/0x310 Ago 29 12:06:07 ronanarraes-osd kernel: [<ffffffff816bb4f6>] entry_SYSCALL_64_fastpath+0x1e/0xa8 Ago 29 12:06:07 ronanarraes-osd kernel: DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x1e/0xa8 Ago 29 12:06:07 ronanarraes-osd kernel: Ago 29 12:06:07 ronanarraes-osd kernel: Leftover inexact backtrace: Ago 29 12:06:07 ronanarraes-osd kernel: ---[ end trace 5774bd3049f78a63 ]--- Best regards, Ronan Arraes -- 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
