Hi, today I got this bug after a power failure. One file that was being written during the power failure, appeared after reboot as:
$ ls -la data/0/3833 ?---------. 1 root root 0 ene 1 1970 data/0/3833 I decided to delete it, but I got this bug after a few seconds and the system halted, I had to reboot it with the magic SysRq keys. After the reboot, I saw this file as: # ls -la ls: no se puede acceder a '3833': No such file or directory total 0 drwx------. 1 backup backup 4 nov 7 19:48 . drwx------. 1 backup backup 2 nov 7 09:05 .. -?????????? ? ? ? ? ? 3833 I've already deleted the affected subvolume, and I have not detected any more problems. Should I worry? My versions are: # uname -a Linux xenon 4.8.6-300.fc25.x86_64 #1 SMP Tue Nov 1 12:36:38 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux # rpm -q btrfs-progs btrfs-progs-4.8.2-2.fc25.x86_64 I've also reported the bug in the Fedora bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1392557 nov 07 19:24:43 xenon kernel: BTRFS error (device sdb7): err add delayed dir index item(index: 50) into the deletion tree of the delayed node(root id: 28557, inode id: 265, errno: -17) nov 07 19:24:43 xenon kernel: ------------[ cut here ]------------ nov 07 19:24:43 xenon kernel: kernel BUG at fs/btrfs/delayed-inode.c:1561! nov 07 19:24:43 xenon kernel: invalid opcode: 0000 [#1] SMP nov 07 19:24:43 xenon kernel: Modules linked in: xfs libcrc32c rfcomm fuse xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun xt_set xt_multiport ip_set_hash_ip nf_conntrack_netbios_ns nf_conntrack_broadcast nov 07 19:24:43 xenon kernel: intel_cstate intel_uncore xor snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi intel_rapl_perf snd_hda_intel snd_hda_codec uvcvideo snd_usb_audio snd_hda_core snd_usb nov 07 19:24:43 xenon kernel: CPU: 0 PID: 10691 Comm: rm Not tainted 4.8.6-300.fc25.x86_64 #1 nov 07 19:24:43 xenon kernel: Hardware name: System manufacturer System Product Name/P8Z68-V LE, BIOS 4102 09/09/2013 nov 07 19:24:43 xenon kernel: task: ffff94ccac7a3d00 task.stack: ffff94cc0bf14000 nov 07 19:24:43 xenon kernel: RIP: 0010:[<ffffffffc0d80a92>] [<ffffffffc0d80a92>] btrfs_delete_delayed_dir_index+0x222/0x2c0 [btrfs] nov 07 19:24:43 xenon kernel: RSP: 0018:ffff94cc0bf17d18 EFLAGS: 00010282 nov 07 19:24:43 xenon kernel: RAX: 0000000000000000 RBX: ffff94ccba0dbdb0 RCX: 0000000000000000 nov 07 19:24:43 xenon kernel: RDX: 0000000000000000 RSI: ffff94cd1ec0e048 RDI: ffff94cd1ec0e048 nov 07 19:24:43 xenon kernel: RBP: ffff94cc0bf17d88 R08: 0000000000098b7f R09: 0000000000000005 nov 07 19:24:43 xenon kernel: R10: ffff94cd0703c400 R11: 0000000000000483 R12: ffff94ccba0dbdf8 nov 07 19:24:43 xenon kernel: R13: ffff94cd071b2800 R14: 0000000000000032 R15: 0000000000000000 nov 07 19:24:43 xenon kernel: FS: 00007fb8228b5700(0000) GS:ffff94cd1ec00000(0000) knlGS:0000000000000000 nov 07 19:24:43 xenon kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 nov 07 19:24:43 xenon kernel: CR2: 00007f512fa32000 CR3: 000000030bd31000 CR4: 00000000000406f0 nov 07 19:24:43 xenon kernel: Stack: nov 07 19:24:43 xenon kernel: ffff94cd0ac81a20 ffff94cc0bf17d58 0000000000040000 ffff94cd0703c400 nov 07 19:24:43 xenon kernel: ffff94cd0703c400 0900000000000000 6000000000000001 0000000000000032 nov 07 19:24:43 xenon kernel: 000000006dbfa5b9 ffff94cc4266da88 ffff94cc6c073d00 0000000000003272 nov 07 19:24:43 xenon kernel: Call Trace: nov 07 19:24:43 xenon kernel: [<ffffffffc0d28db1>] __btrfs_unlink_inode+0x1b1/0x4b0 [btrfs] nov 07 19:24:43 xenon kernel: [<ffffffffc0d2ca1c>] btrfs_unlink_inode+0x1c/0x40 [btrfs] nov 07 19:24:43 xenon kernel: [<ffffffffc0d2caab>] btrfs_unlink+0x6b/0xc0 [btrfs] nov 07 19:24:43 xenon kernel: [<ffffffff8725d188>] vfs_unlink+0x108/0x190 nov 07 19:24:43 xenon kernel: [<ffffffff872618b7>] do_unlinkat+0x277/0x2f0 nov 07 19:24:43 xenon kernel: [<ffffffff872623fb>] SyS_unlinkat+0x1b/0x30 nov 07 19:24:43 xenon kernel: [<ffffffff87802572>] entry_SYSCALL_64_fastpath+0x1a/0xa4 nov 07 19:24:43 xenon kernel: Code: eb fe ff ff 48 8b 53 10 49 8b bd f0 01 00 00 41 89 c1 4c 8b 03 48 c7 c6 d0 1b db c0 48 8b 8a 48 03 00 00 4c 89 f2 e8 fe f5 f6 ff <0f> 0b 65 8b 05 8d 96 28 3f 89 c0 48 0f a3 05 nov 07 19:24:43 xenon kernel: RIP [<ffffffffc0d80a92>] btrfs_delete_delayed_dir_index+0x222/0x2c0 [btrfs] nov 07 19:24:43 xenon kernel: RSP <ffff94cc0bf17d18> nov 07 19:24:43 xenon kernel: ---[ end trace fb2b0363e7e89d6e ]--- -- Juan Orti https://apuntesderootblog.wordpress.com/ GPG: 61F0 8272 6882 BCA6 3A35 88F6 B630 4B72 DEEB D08B -- 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
